diff --git a/src/lib/system/linux/clang/Console.Mod b/src/lib/system/linux/clang/Console.Mod
index 9b6b6611..e523ef7b 100644
--- a/src/lib/system/linux/clang/Console.Mod
+++ b/src/lib/system/linux/clang/Console.Mod
@@ -7,10 +7,6 @@ MODULE Console;  (* J. Templ, 29-June-96 *)
   VAR line: ARRAY 128 OF CHAR;
     pos: INTEGER;
 
-  (* for read(), write() *)
-  PROCEDURE -includeUnistd()
-    "#include <unistd.h>";
-
   PROCEDURE -Write(adr, n: LONGINT)
     "write(1/*stdout*/, adr, n)";
 
diff --git a/src/lib/system/linux/clang/Files.Mod b/src/lib/system/linux/clang/armv6j_hardfp/Files.Mod
similarity index 100%
rename from src/lib/system/linux/clang/Files.Mod
rename to src/lib/system/linux/clang/armv6j_hardfp/Files.Mod
diff --git a/src/lib/system/linux/clang/Files0.Mod b/src/lib/system/linux/clang/armv6j_hardfp/Files0.Mod
similarity index 100%
rename from src/lib/system/linux/clang/Files0.Mod
rename to src/lib/system/linux/clang/armv6j_hardfp/Files0.Mod
diff --git a/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.c0 b/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.c0
index a5599acc..580449aa 100644
--- a/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.c0
+++ b/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.c0
@@ -20,7 +20,7 @@
 #include "varargs.h"
 #endif
 
-extern void *malloc(unsigned int size);
+extern void *malloc(long size);
 extern void exit(int status);
 
 void (*SYSTEM_Halt)();
diff --git a/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.h b/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.h
index 0c7b19af..719a6d18 100644
--- a/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.h
+++ b/src/lib/system/linux/clang/armv6j_hardfp/SYSTEM.h
@@ -15,7 +15,7 @@ uses double # as concatenation operator
 
 //extern void *memcpy(void *dest, const void *src, long n);
 extern void *memcpy(void *dest, const void *src, size_t n);
-extern void *malloc(unsigned int size);
+extern void *malloc(long size);
 extern void exit(int status);
 
 #define export
diff --git a/src/lib/system/linux/gcc/Files.Mod b/src/lib/system/linux/clang/powerpc/Files.Mod
similarity index 100%
rename from src/lib/system/linux/gcc/Files.Mod
rename to src/lib/system/linux/clang/powerpc/Files.Mod
diff --git a/src/lib/system/linux/gcc/Files0.Mod b/src/lib/system/linux/clang/powerpc/Files0.Mod
similarity index 100%
rename from src/lib/system/linux/gcc/Files0.Mod
rename to src/lib/system/linux/clang/powerpc/Files0.Mod
diff --git a/src/lib/system/linux/clang/powerpc/SYSTEM.c0 b/src/lib/system/linux/clang/powerpc/SYSTEM.c0
index a5599acc..580449aa 100644
--- a/src/lib/system/linux/clang/powerpc/SYSTEM.c0
+++ b/src/lib/system/linux/clang/powerpc/SYSTEM.c0
@@ -20,7 +20,7 @@
 #include "varargs.h"
 #endif
 
-extern void *malloc(unsigned int size);
+extern void *malloc(long size);
 extern void exit(int status);
 
 void (*SYSTEM_Halt)();
diff --git a/src/lib/system/linux/clang/powerpc/SYSTEM.h b/src/lib/system/linux/clang/powerpc/SYSTEM.h
index 0c7b19af..719a6d18 100644
--- a/src/lib/system/linux/clang/powerpc/SYSTEM.h
+++ b/src/lib/system/linux/clang/powerpc/SYSTEM.h
@@ -15,7 +15,7 @@ uses double # as concatenation operator
 
 //extern void *memcpy(void *dest, const void *src, long n);
 extern void *memcpy(void *dest, const void *src, size_t n);
-extern void *malloc(unsigned int size);
+extern void *malloc(long size);
 extern void exit(int status);
 
 #define export
diff --git a/src/lib/system/linux/clang/x86/Files.Mod b/src/lib/system/linux/clang/x86/Files.Mod
new file mode 100644
index 00000000..6307407d
--- /dev/null
+++ b/src/lib/system/linux/clang/x86/Files.Mod
@@ -0,0 +1,663 @@
+MODULE Files;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+(* modified version of Files, which opens only the file provided and does not scan any path in any environment variable, also ReadLine procedure added; -- noch *)
+  IMPORT SYSTEM, Unix, Kernel, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+(*
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+*)
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE 
+         pos := 0;
+	 COPY(name, path); (* -- noch *)
+	 (*ScanPath(pos, dir);*) (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+	RETURN NIL
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteByte* (VAR r : Rider; x : SYSTEM.BYTE); (* added for compatibility with PO 2013, -- noch *)
+  BEGIN
+     Write(r, x);
+  END WriteByte;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+
+  (* need to read line; -- noch *)
+  PROCEDURE ReadLine* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR; b : BOOLEAN;
+  BEGIN i := 0;
+        b := FALSE;
+    REPEAT 
+       Read(R, ch); 
+       IF ((ch = 0X) OR (ch = 0AX) OR (ch = 0DX)) THEN 
+       b := TRUE
+       ELSE
+       x[i] := ch;
+       INC(i);
+       END;
+    UNTIL b
+  END ReadLine;
+ 
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE GetName*(f: File; VAR name: ARRAY OF CHAR);
+  BEGIN
+     COPY (f.workName, name);
+  END GetName;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files.
diff --git a/src/lib/system/linux/clang/x86/Files0.Mod b/src/lib/system/linux/clang/x86/Files0.Mod
new file mode 100644
index 00000000..4f021ede
--- /dev/null
+++ b/src/lib/system/linux/clang/x86/Files0.Mod
@@ -0,0 +1,635 @@
+MODULE Files0;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+
+(* this module is not for use by developers and inteded to bootstrap voc *)
+(* for general use import Files module *)
+
+  IMPORT SYSTEM, Unix, Kernel := Kernel0, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files0_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE pos := 0; ScanPath(pos, dir); MakeFileName(dir, name, path); ScanPath(pos, dir)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files0.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE MakeFileName(dir, name, path); ScanPath(pos, dir)
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+  
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files0.
diff --git a/src/lib/system/linux/clang/x86/SYSTEM.c0 b/src/lib/system/linux/clang/x86/SYSTEM.c0
index a5599acc..580449aa 100644
--- a/src/lib/system/linux/clang/x86/SYSTEM.c0
+++ b/src/lib/system/linux/clang/x86/SYSTEM.c0
@@ -20,7 +20,7 @@
 #include "varargs.h"
 #endif
 
-extern void *malloc(unsigned int size);
+extern void *malloc(long size);
 extern void exit(int status);
 
 void (*SYSTEM_Halt)();
diff --git a/src/lib/system/linux/clang/x86/SYSTEM.h b/src/lib/system/linux/clang/x86/SYSTEM.h
index 0c7b19af..719a6d18 100644
--- a/src/lib/system/linux/clang/x86/SYSTEM.h
+++ b/src/lib/system/linux/clang/x86/SYSTEM.h
@@ -15,7 +15,7 @@ uses double # as concatenation operator
 
 //extern void *memcpy(void *dest, const void *src, long n);
 extern void *memcpy(void *dest, const void *src, size_t n);
-extern void *malloc(unsigned int size);
+extern void *malloc(long size);
 extern void exit(int status);
 
 #define export
diff --git a/src/lib/system/linux/clang/x86_64/Files.Mod b/src/lib/system/linux/clang/x86_64/Files.Mod
new file mode 100644
index 00000000..c8f42ca5
--- /dev/null
+++ b/src/lib/system/linux/clang/x86_64/Files.Mod
@@ -0,0 +1,664 @@
+MODULE Files;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+(* modified version of Files, which opens only the file provided and does not scan any path in any environment variable, also ReadLine procedure added; -- noch *)
+  IMPORT SYSTEM, Unix, Kernel, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-: INTEGER;
+      len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2, 4,5, 7,8})));
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2, 4,5, 7,8})));
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+(*
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+*)
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd: INTEGER; res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE 
+         pos := 0;
+	 COPY(name, path); (* -- noch *)
+	 (*ScanPath(pos, dir);*) (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+      END ;
+      LOOP
+        fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {}))); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {}))); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+	RETURN NIL
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteByte* (VAR r : Rider; x : SYSTEM.BYTE); (* added for compatibility with PO 2013, -- noch *)
+  BEGIN
+     Write(r, x);
+  END WriteByte;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew: INTEGER; n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2,  4,5,  7,8})));
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+
+  (* need to read line; -- noch *)
+  PROCEDURE ReadLine* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR; b : BOOLEAN;
+  BEGIN i := 0;
+        b := FALSE;
+    REPEAT 
+       Read(R, ch); 
+       IF ((ch = 0X) OR (ch = 0AX) OR (ch = 0DX)) THEN 
+       b := TRUE
+       ELSE
+       x[i] := ch;
+       INC(i);
+       END;
+    UNTIL b
+  END ReadLine;
+ 
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE GetName*(f: File; VAR name: ARRAY OF CHAR);
+  BEGIN
+     COPY (f.workName, name);
+  END GetName;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files.
diff --git a/src/lib/system/linux/clang/x86_64/Files0.Mod b/src/lib/system/linux/clang/x86_64/Files0.Mod
new file mode 100644
index 00000000..1d9cd953
--- /dev/null
+++ b/src/lib/system/linux/clang/x86_64/Files0.Mod
@@ -0,0 +1,636 @@
+MODULE Files0;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+
+(* this module is not for use by developers and inteded to bootstrap voc *)
+(* for general use import Files module *)
+
+  IMPORT SYSTEM, Unix, Kernel := Kernel0, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-: INTEGER;
+      len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files0_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, (Unix.rdwr + Unix.creat + Unix.trunc))), SHORT(SYSTEM.VAL(LONGINT, ({2, 4,5, 7,8}))));
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, (Unix.rdwr + Unix.creat + Unix.trunc))), SHORT(SYSTEM.VAL(LONGINT, {2, 4,5, 7,8})));
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd: INTEGER; res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE pos := 0; ScanPath(pos, dir); MakeFileName(dir, name, path); ScanPath(pos, dir)
+      END ;
+      LOOP
+        fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {}))); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {}))); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files0.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE MakeFileName(dir, name, path); ScanPath(pos, dir)
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew: INTEGER; n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2,  4,5,  7,8})));
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+  
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files0.
diff --git a/src/lib/system/linux/clang/x86_64/Unix.Mod b/src/lib/system/linux/clang/x86_64/Unix.Mod
index 3e477d69..195bb41d 100644
--- a/src/lib/system/linux/clang/x86_64/Unix.Mod
+++ b/src/lib/system/linux/clang/x86_64/Unix.Mod
@@ -292,16 +292,18 @@ from man gettimeofday
   END ;
 
   Sockaddr* = RECORD
-    family*: INTEGER;
-    port*: INTEGER;
-    internetAddr*: LONGINT;
-    pad*: ARRAY 8 OF CHAR;
+    family0*, family1*: SHORTINT;
+    pad0, pad1: SHORTINT;
+    pad2 : INTEGER;
+    (*port*: INTEGER;
+    internetAddr*: LONGINT;*)
+    pad*: ARRAY 14 OF CHAR;
   END ;
   
   HostEntry* = POINTER [1] TO Hostent;
   Hostent* = RECORD
     name*, aliases*: LONGINT;
-    addrtype*, length*: LONGINT;
+    addrtype*, length*: INTEGER;
     addrlist*: LONGINT; (*POINTER TO POINTER TO LONGINT, network byte order*)
   END;
 
@@ -321,7 +323,7 @@ from man gettimeofday
   PROCEDURE -includeStdlib()
     "#include <stdlib.h>";
 
-   (* for nanosleep() *)
+  (* for nanosleep() *)
    PROCEDURE -includeTime()
      "#include <time.h>";
 
@@ -337,71 +339,71 @@ from man gettimeofday
     RETURN err()
   END errno;
 
-  PROCEDURE -Exit*(n: LONGINT)
+  PROCEDURE -Exit*(n: INTEGER)
     "exit(n)";
 
-  PROCEDURE -Fork*(): LONGINT
+  PROCEDURE -Fork*(): INTEGER
     "fork()";
 
-  PROCEDURE -Wait*(VAR status: LONGINT): LONGINT
+  PROCEDURE -Wait*(VAR status: INTEGER): INTEGER
     "wait(status)";
 
-  PROCEDURE -Select*(width: LONGINT; VAR readfds, writefds, exceptfds: FdSet; VAR timeout: Timeval): LONGINT
+  PROCEDURE -Select*(width: INTEGER; VAR readfds, writefds, exceptfds: FdSet; VAR timeout: Timeval): INTEGER
     "select(width, readfds, writefds, exceptfds, timeout)";
 
-  PROCEDURE -Gettimeofday* (VAR tv: Timeval; VAR tz: Timezone) : LONGINT
+  PROCEDURE -Gettimeofday* (VAR tv: Timeval; VAR tz: Timezone) : INTEGER
     "gettimeofday(tv, tz)";
 
-  PROCEDURE -Read* (fd, buf, nbyte: LONGINT): LONGINT
+  PROCEDURE -Read* (fd: INTEGER; buf, nbyte: LONGINT): LONGINT
     "read(fd, buf, nbyte)";
 
-  PROCEDURE -ReadBlk* (fd: LONGINT; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
+  PROCEDURE -ReadBlk* (fd: INTEGER; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
     "read(fd, buf, buf__len)";
 
-  PROCEDURE -Write* (fd, buf, nbyte: LONGINT): LONGINT
+  PROCEDURE -Write* (fd: INTEGER; buf, nbyte: LONGINT): LONGINT
     "write(fd, buf, nbyte)";
 
-  PROCEDURE -WriteBlk* (fd: LONGINT; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
+  PROCEDURE -WriteBlk* (fd: INTEGER; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
     "write(fd, buf, buf__len)";
 
-  PROCEDURE -Dup*(fd: LONGINT): LONGINT
+  PROCEDURE -Dup*(fd: INTEGER): INTEGER
     "dup(fd)";
 
-  PROCEDURE -Dup2*(fd1, fd2: LONGINT): LONGINT
+  PROCEDURE -Dup2*(fd1, fd2: INTEGER): INTEGER
     "dup(fd1, fd2)";
 
-  PROCEDURE -Pipe*(fds : LONGINT): LONGINT
+  PROCEDURE -Pipe*(fds : LONGINT): INTEGER
      "pipe(fds)";
 
-  PROCEDURE -Getpid*(): LONGINT
+  PROCEDURE -Getpid*(): INTEGER
     "getpid()";
 
-  PROCEDURE -Getuid*(): LONGINT
+  PROCEDURE -Getuid*(): INTEGER
     "getuid()";
 
-  PROCEDURE -Geteuid*(): LONGINT
+  PROCEDURE -Geteuid*(): INTEGER 
     "geteuid()";
 
-  PROCEDURE -Getgid*(): LONGINT
+  PROCEDURE -Getgid*(): INTEGER
     "getgid()";
 
-  PROCEDURE -Getegid*(): LONGINT
+  PROCEDURE -Getegid*(): INTEGER
     "getegid()";
 
-  PROCEDURE -Unlink*(name: Name): LONGINT
+  PROCEDURE -Unlink*(name: Name): INTEGER
     "unlink(name)";
 
-  PROCEDURE -Open*(name: Name; flag, mode: SET): LONGINT
+  PROCEDURE -Open*(name: Name; flag: INTEGER; mode: LONGINT): INTEGER
     "open(name, flag, mode)";
 
-  PROCEDURE -Close*(fd: LONGINT): LONGINT
+  PROCEDURE -Close*(fd: INTEGER): INTEGER
     "close(fd)";
 
-  PROCEDURE -stat(name: Name; VAR statbuf: Status): LONGINT
+  PROCEDURE -stat(name: Name; VAR statbuf: Status): INTEGER
     "stat((const char*)name, (struct stat*)statbuf)";
 
-  PROCEDURE Stat*(name: Name; VAR statbuf: Status): LONGINT;
-    VAR res: LONGINT;
+  PROCEDURE Stat*(name: Name; VAR statbuf: Status): INTEGER;
+    VAR res: INTEGER;
   BEGIN
     res := stat(name, statbuf);
     (* make the first 4 bytes as unique as possible (used in module Files for caching!) *) 
@@ -411,11 +413,11 @@ from man gettimeofday
     RETURN res;
   END Stat;
 
-  PROCEDURE -fstat(fd: LONGINT; VAR statbuf: Status): LONGINT   
+  PROCEDURE -fstat(fd: INTEGER; VAR statbuf: Status): INTEGER   
     "fstat(fd, (struct stat*)statbuf)";
 
-  PROCEDURE Fstat*(fd: LONGINT; VAR statbuf: Status): LONGINT;
-    VAR res: LONGINT;
+  PROCEDURE Fstat*(fd: INTEGER; VAR statbuf: Status): INTEGER;
+    VAR res: INTEGER;
   BEGIN
     res := fstat(fd, statbuf);
     (* make the first 4 bytes as unique as possible (used in module Files for caching!) *) 
@@ -424,47 +426,47 @@ from man gettimeofday
     RETURN res;
   END Fstat;
 
-  PROCEDURE -Fchmod*(fd, mode: LONGINT): LONGINT
+  PROCEDURE -Fchmod*(fd, mode: INTEGER): INTEGER
     "fchmod(fd, mode)";
 
-  PROCEDURE -Chmod*(path: Name; mode: LONGINT): LONGINT
+  PROCEDURE -Chmod*(path: Name; mode: INTEGER): INTEGER
     "chmod(path, mode)";
 
-  PROCEDURE -Lseek*(fd, offset, origin: LONGINT): LONGINT
+  PROCEDURE -Lseek*(fd: INTEGER; offset: LONGINT; origin: INTEGER): LONGINT
     "lseek(fd, offset, origin)";
 
-  PROCEDURE -Fsync*(fd: LONGINT): LONGINT
+  PROCEDURE -Fsync*(fd: INTEGER): INTEGER
     "fsync(fd)";
 
-  PROCEDURE -Fcntl*(fd, cmd, arg: LONGINT ): LONGINT
+  PROCEDURE -Fcntl*(fd: INTEGER; cmd: INTEGER; arg: LONGINT ): INTEGER
     "fcntl(fd, cmd, arg)";
 
-  PROCEDURE -Flock*(fd, operation: LONGINT): LONGINT
+  PROCEDURE -Flock*(fd, operation: INTEGER): INTEGER
     "flock(fd, operation)";
 
-  PROCEDURE -Ftruncate*(fd, length: LONGINT): LONGINT
+  PROCEDURE -Ftruncate*(fd: INTEGER; length: LONGINT): INTEGER
     "ftruncate(fd, length)";
 
-  PROCEDURE -Readblk*(fd: LONGINT; VAR buf: ARRAY OF SYSTEM.BYTE; len: LONGINT): LONGINT
+  PROCEDURE -Readblk*(fd: INTEGER; VAR buf: ARRAY OF SYSTEM.BYTE; len: LONGINT): LONGINT
     "read(fd, buf, len)";
 
-  PROCEDURE -Rename*(old, new: Name): LONGINT
+  PROCEDURE -Rename*(old, new: Name): INTEGER
     "rename(old, new)";
 
-  PROCEDURE -Chdir*(path: Name): LONGINT
+  PROCEDURE -Chdir*(path: Name): INTEGER
     "chdir(path)";
 
-  PROCEDURE -Ioctl*(fd, request, arg: LONGINT): LONGINT
+  PROCEDURE -Ioctl*(fd: INTEGER; request, arg: LONGINT): INTEGER
     "ioctl(fd, request, arg)";
 
-  PROCEDURE -Kill*(pid, sig: LONGINT): LONGINT
+  PROCEDURE -Kill*(pid, sig: INTEGER): INTEGER
     "kill(pid, sig)";
 
-  PROCEDURE -Sigsetmask*(mask: LONGINT): LONGINT
+  PROCEDURE -Sigsetmask*(mask: INTEGER): INTEGER
     "sigsetmask(mask)";
 
   PROCEDURE -Sleep*(ms : INTEGER): INTEGER
-    "(INTEGER)sleep(ms)";
+      "(INTEGER)sleep(ms)";
 
   PROCEDURE -Nanosleep*(VAR req : Timeval; VAR rem : Timeval): INTEGER
     "(INTEGER)nanosleep(req, rem)";
@@ -474,31 +476,31 @@ from man gettimeofday
   PROCEDURE -Gethostbyname*(name: Name): HostEntry
     "(Unix_HostEntry)gethostbyname(name)";
 
-  PROCEDURE -Gethostname*(VAR name: Name): LONGINT
+  PROCEDURE -Gethostname*(VAR name: Name): INTEGER
     "gethostname(name, name__len)";
 
-  PROCEDURE -Socket*(af, type, protocol: LONGINT): LONGINT
+  PROCEDURE -Socket*(af, type, protocol: INTEGER): INTEGER
     "socket(af, type, protocol)";
 
-  PROCEDURE -Connect*(socket: LONGINT; name: Sockaddr; namelen: LONGINT): LONGINT
+  PROCEDURE -Connect*(socket: INTEGER; name: Sockaddr; namelen: INTEGER): INTEGER
     "connect(socket, &(name), namelen)";
 
-  PROCEDURE -Getsockname*(socket: LONGINT; VAR name: Sockaddr; VAR namelen: LONGINT): LONGINT
+  PROCEDURE -Getsockname*(socket: INTEGER; VAR name: Sockaddr; VAR namelen: INTEGER): INTEGER
     "getsockname(socket, name, namelen)";
 
-  PROCEDURE -Bind*(socket: LONGINT; name: Sockaddr; namelen: LONGINT): LONGINT
+  PROCEDURE -Bind*(socket: INTEGER; name: Sockaddr; namelen: INTEGER): INTEGER
     "bind(socket, &(name), namelen)";
 
-  PROCEDURE -Listen*(socket, backlog: LONGINT): LONGINT
+  PROCEDURE -Listen*(socket, backlog: INTEGER): INTEGER
     "listen(socket, backlog)";
 
-  PROCEDURE -Accept*(socket: LONGINT; VAR addr: Sockaddr; VAR addrlen: LONGINT): LONGINT
+  PROCEDURE -Accept*(socket: INTEGER; VAR addr: Sockaddr; VAR addrlen: INTEGER): LONGINT
     "accept(socket, addr, addrlen)";
 
-  PROCEDURE -Recv*(socket, bufadr, buflen, flags: LONGINT): LONGINT
+  PROCEDURE -Recv*(socket: INTEGER; bufadr, buflen: LONGINT; flags: INTEGER): LONGINT
     "recv(socket, bufadr, buflen, flags)";
 
-  PROCEDURE -Send*(socket, bufadr, buflen, flags: LONGINT): LONGINT
+  PROCEDURE -Send*(socket: INTEGER; bufadr, buflen: LONGINT; flags: INTEGER): LONGINT
     "send(socket, bufadr, buflen, flags)";
 
    PROCEDURE -sys(str: ARRAY OF CHAR): INTEGER   (* need this to call external tools like gcc or gas; noch *)
diff --git a/src/lib/system/linux/gcc/armv6j_hardfp/Files.Mod b/src/lib/system/linux/gcc/armv6j_hardfp/Files.Mod
new file mode 100644
index 00000000..6307407d
--- /dev/null
+++ b/src/lib/system/linux/gcc/armv6j_hardfp/Files.Mod
@@ -0,0 +1,663 @@
+MODULE Files;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+(* modified version of Files, which opens only the file provided and does not scan any path in any environment variable, also ReadLine procedure added; -- noch *)
+  IMPORT SYSTEM, Unix, Kernel, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+(*
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+*)
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE 
+         pos := 0;
+	 COPY(name, path); (* -- noch *)
+	 (*ScanPath(pos, dir);*) (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+	RETURN NIL
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteByte* (VAR r : Rider; x : SYSTEM.BYTE); (* added for compatibility with PO 2013, -- noch *)
+  BEGIN
+     Write(r, x);
+  END WriteByte;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+
+  (* need to read line; -- noch *)
+  PROCEDURE ReadLine* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR; b : BOOLEAN;
+  BEGIN i := 0;
+        b := FALSE;
+    REPEAT 
+       Read(R, ch); 
+       IF ((ch = 0X) OR (ch = 0AX) OR (ch = 0DX)) THEN 
+       b := TRUE
+       ELSE
+       x[i] := ch;
+       INC(i);
+       END;
+    UNTIL b
+  END ReadLine;
+ 
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE GetName*(f: File; VAR name: ARRAY OF CHAR);
+  BEGIN
+     COPY (f.workName, name);
+  END GetName;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files.
diff --git a/src/lib/system/linux/gcc/armv6j_hardfp/Files0.Mod b/src/lib/system/linux/gcc/armv6j_hardfp/Files0.Mod
new file mode 100644
index 00000000..4f021ede
--- /dev/null
+++ b/src/lib/system/linux/gcc/armv6j_hardfp/Files0.Mod
@@ -0,0 +1,635 @@
+MODULE Files0;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+
+(* this module is not for use by developers and inteded to bootstrap voc *)
+(* for general use import Files module *)
+
+  IMPORT SYSTEM, Unix, Kernel := Kernel0, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files0_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE pos := 0; ScanPath(pos, dir); MakeFileName(dir, name, path); ScanPath(pos, dir)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files0.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE MakeFileName(dir, name, path); ScanPath(pos, dir)
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+  
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files0.
diff --git a/src/lib/system/linux/gcc/powerpc/Files.Mod b/src/lib/system/linux/gcc/powerpc/Files.Mod
new file mode 100644
index 00000000..6307407d
--- /dev/null
+++ b/src/lib/system/linux/gcc/powerpc/Files.Mod
@@ -0,0 +1,663 @@
+MODULE Files;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+(* modified version of Files, which opens only the file provided and does not scan any path in any environment variable, also ReadLine procedure added; -- noch *)
+  IMPORT SYSTEM, Unix, Kernel, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+(*
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+*)
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE 
+         pos := 0;
+	 COPY(name, path); (* -- noch *)
+	 (*ScanPath(pos, dir);*) (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+	RETURN NIL
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteByte* (VAR r : Rider; x : SYSTEM.BYTE); (* added for compatibility with PO 2013, -- noch *)
+  BEGIN
+     Write(r, x);
+  END WriteByte;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+
+  (* need to read line; -- noch *)
+  PROCEDURE ReadLine* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR; b : BOOLEAN;
+  BEGIN i := 0;
+        b := FALSE;
+    REPEAT 
+       Read(R, ch); 
+       IF ((ch = 0X) OR (ch = 0AX) OR (ch = 0DX)) THEN 
+       b := TRUE
+       ELSE
+       x[i] := ch;
+       INC(i);
+       END;
+    UNTIL b
+  END ReadLine;
+ 
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE GetName*(f: File; VAR name: ARRAY OF CHAR);
+  BEGIN
+     COPY (f.workName, name);
+  END GetName;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files.
diff --git a/src/lib/system/linux/gcc/powerpc/Files0.Mod b/src/lib/system/linux/gcc/powerpc/Files0.Mod
new file mode 100644
index 00000000..4f021ede
--- /dev/null
+++ b/src/lib/system/linux/gcc/powerpc/Files0.Mod
@@ -0,0 +1,635 @@
+MODULE Files0;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+
+(* this module is not for use by developers and inteded to bootstrap voc *)
+(* for general use import Files module *)
+
+  IMPORT SYSTEM, Unix, Kernel := Kernel0, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files0_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE pos := 0; ScanPath(pos, dir); MakeFileName(dir, name, path); ScanPath(pos, dir)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files0.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE MakeFileName(dir, name, path); ScanPath(pos, dir)
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+  
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files0.
diff --git a/src/lib/system/linux/gcc/x86/Files.Mod b/src/lib/system/linux/gcc/x86/Files.Mod
new file mode 100644
index 00000000..6307407d
--- /dev/null
+++ b/src/lib/system/linux/gcc/x86/Files.Mod
@@ -0,0 +1,663 @@
+MODULE Files;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+(* modified version of Files, which opens only the file provided and does not scan any path in any environment variable, also ReadLine procedure added; -- noch *)
+  IMPORT SYSTEM, Unix, Kernel, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+(*
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+*)
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE 
+         pos := 0;
+	 COPY(name, path); (* -- noch *)
+	 (*ScanPath(pos, dir);*) (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+	RETURN NIL
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteByte* (VAR r : Rider; x : SYSTEM.BYTE); (* added for compatibility with PO 2013, -- noch *)
+  BEGIN
+     Write(r, x);
+  END WriteByte;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+
+  (* need to read line; -- noch *)
+  PROCEDURE ReadLine* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR; b : BOOLEAN;
+  BEGIN i := 0;
+        b := FALSE;
+    REPEAT 
+       Read(R, ch); 
+       IF ((ch = 0X) OR (ch = 0AX) OR (ch = 0DX)) THEN 
+       b := TRUE
+       ELSE
+       x[i] := ch;
+       INC(i);
+       END;
+    UNTIL b
+  END ReadLine;
+ 
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE GetName*(f: File; VAR name: ARRAY OF CHAR);
+  BEGIN
+     COPY (f.workName, name);
+  END GetName;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files.
diff --git a/src/lib/system/linux/gcc/x86/Files0.Mod b/src/lib/system/linux/gcc/x86/Files0.Mod
new file mode 100644
index 00000000..4f021ede
--- /dev/null
+++ b/src/lib/system/linux/gcc/x86/Files0.Mod
@@ -0,0 +1,635 @@
+MODULE Files0;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+
+(* this module is not for use by developers and inteded to bootstrap voc *)
+(* for general use import Files module *)
+
+  IMPORT SYSTEM, Unix, Kernel := Kernel0, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-, len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files0_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, Unix.rdwr + Unix.creat + Unix.trunc, {2, 4,5, 7,8});
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd, res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE pos := 0; ScanPath(pos, dir); MakeFileName(dir, name, path); ScanPath(pos, dir)
+      END ;
+      LOOP
+        fd := Unix.Open(path, Unix.rdwr, {}); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, Unix.rdwr, {});
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, Unix.rdonly, {}); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files0.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE MakeFileName(dir, name, path); ScanPath(pos, dir)
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew, n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, Unix.rdonly, {});
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, Unix.rdwr + Unix.creat + Unix.trunc, {2,  4,5,  7,8});
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+  
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files0.
diff --git a/src/lib/system/linux/gcc/x86_64/Files.Mod b/src/lib/system/linux/gcc/x86_64/Files.Mod
new file mode 100644
index 00000000..c8f42ca5
--- /dev/null
+++ b/src/lib/system/linux/gcc/x86_64/Files.Mod
@@ -0,0 +1,664 @@
+MODULE Files;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+(* modified version of Files, which opens only the file provided and does not scan any path in any environment variable, also ReadLine procedure added; -- noch *)
+  IMPORT SYSTEM, Unix, Kernel, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-: INTEGER;
+      len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+      f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2, 4,5, 7,8})));
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2, 4,5, 7,8})));
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+(*
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+*)
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd: INTEGER; res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE 
+         pos := 0;
+	 COPY(name, path); (* -- noch *)
+	 (*ScanPath(pos, dir);*) (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+      END ;
+      LOOP
+        fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {}))); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {}))); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE (*MakeFileName(dir, name, path);*) (*ScanPath(pos, dir)*)
+	RETURN NIL
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteByte* (VAR r : Rider; x : SYSTEM.BYTE); (* added for compatibility with PO 2013, -- noch *)
+  BEGIN
+     Write(r, x);
+  END WriteByte;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew: INTEGER; n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2,  4,5,  7,8})));
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+
+  (* need to read line; -- noch *)
+  PROCEDURE ReadLine* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR; b : BOOLEAN;
+  BEGIN i := 0;
+        b := FALSE;
+    REPEAT 
+       Read(R, ch); 
+       IF ((ch = 0X) OR (ch = 0AX) OR (ch = 0DX)) THEN 
+       b := TRUE
+       ELSE
+       x[i] := ch;
+       INC(i);
+       END;
+    UNTIL b
+  END ReadLine;
+ 
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE GetName*(f: File; VAR name: ARRAY OF CHAR);
+  BEGIN
+     COPY (f.workName, name);
+  END GetName;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files.
diff --git a/src/lib/system/linux/gcc/x86_64/Files0.Mod b/src/lib/system/linux/gcc/x86_64/Files0.Mod
new file mode 100644
index 00000000..1d9cd953
--- /dev/null
+++ b/src/lib/system/linux/gcc/x86_64/Files0.Mod
@@ -0,0 +1,636 @@
+MODULE Files0;  (* J. Templ 1.12. 89/12.4.95 Oberon files mapped onto Unix files *)
+
+(* this module is not for use by developers and inteded to bootstrap voc *)
+(* for general use import Files module *)
+
+  IMPORT SYSTEM, Unix, Kernel := Kernel0, Args, Console;
+
+  (* standard data type I/O 
+
+    little endian,
+    Sint:1, Int:2, Lint:4
+    ORD({0}) = 1,
+    false = 0, true =1
+    IEEE real format,
+    null terminated strings,
+    compact numbers according to M.Odersky *)
+
+
+  CONST
+    nofbufs = 4;
+    bufsize = 4096;
+    fileTabSize = 64;
+    noDesc = -1;
+    notDone = -1;
+
+    (* file states *)
+    open = 0; create = 1; close = 2;
+
+
+  TYPE
+    FileName = ARRAY 101 OF CHAR;
+    File* = POINTER TO Handle;
+    Buffer = POINTER TO BufDesc;
+
+    Handle = RECORD
+      workName, registerName: FileName;
+      tempFile: BOOLEAN;
+      dev, ino, mtime: LONGINT;
+      fd-: INTEGER;
+      len, pos: LONGINT;
+      bufs: ARRAY nofbufs OF Buffer;
+      swapper, state: INTEGER
+    END ;
+
+    BufDesc = RECORD
+      f: File;
+      chg: BOOLEAN;
+      org, size: LONGINT;
+      data: ARRAY bufsize OF SYSTEM.BYTE
+    END ;
+
+    Rider* = RECORD 
+      res*: LONGINT;
+      eof*: BOOLEAN;
+      buf: Buffer;
+      org, offset: LONGINT
+    END ;
+
+    Time = POINTER TO TimeDesc;
+    TimeDesc = RECORD
+      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: LONGINT;
+(*      sec*, min*, hour*, mday*, mon*, year*, wday*, isdst*, zone*, gmtoff*: INTEGER;*)
+    END ;
+
+  VAR
+    fileTab: ARRAY fileTabSize OF LONGINT (*=File*);
+    tempno: INTEGER;
+
+(* for localtime *)
+  PROCEDURE -includetime()
+      '#include "time.h"';
+
+  PROCEDURE -localtime(VAR clock: LONGINT): Time
+    "(Files0_Time) localtime(clock)";
+
+  PROCEDURE -getcwd(VAR cwd: Unix.Name)
+    "getcwd(cwd, cwd__len)";
+
+  PROCEDURE -IdxTrap "__HALT(-1)";
+
+  PROCEDURE^ Finalize(o: SYSTEM.PTR);
+
+  PROCEDURE Err(s: ARRAY OF CHAR; f: File; errno: LONGINT);
+  BEGIN
+    Console.Ln; Console.String("-- "); Console.String(s); Console.String(": "); 
+    IF f # NIL THEN
+      IF f.registerName # "" THEN Console.String(f.registerName) ELSE Console.String(f.workName) END
+    END ;
+    IF errno # 0 THEN Console.String(" errno = "); Console.Int(errno, 1) END ;
+    Console.Ln;
+    HALT(99)
+  END Err;
+
+  PROCEDURE MakeFileName(dir, name: ARRAY OF CHAR; VAR dest: ARRAY OF CHAR);
+    VAR i, j: INTEGER;
+  BEGIN i := 0; j := 0;
+    WHILE dir[i] # 0X DO dest[i] := dir[i]; INC(i) END ;
+    IF dest[i-1] # "/" THEN dest[i] := "/"; INC(i) END ;
+    WHILE name[j] # 0X DO dest[i] := name[j]; INC(i); INC(j) END ;
+    dest[i] := 0X
+  END MakeFileName;
+
+  PROCEDURE GetTempName(finalName: ARRAY OF CHAR; VAR name: ARRAY OF CHAR);
+    VAR n, i, j: LONGINT;
+  BEGIN
+    INC(tempno); n := tempno; i := 0;
+    IF finalName[0] # "/" THEN  (* relative pathname *)
+      WHILE Kernel.CWD[i] # 0X DO name[i] := Kernel.CWD[i]; INC(i) END;
+      IF Kernel.CWD[i-1] # "/" THEN name[i] := "/"; INC(i) END
+    END;
+    j := 0;
+    WHILE finalName[j] # 0X DO name[i] := finalName[j]; INC(i); INC(j) END;
+    DEC(i);
+    WHILE name[i] # "/" DO DEC(i) END;
+    name[i+1] := "."; name[i+2] := "t"; name[i+3] := "m"; name[i+4] := "p"; name[i+5] := "."; INC(i, 6);
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0")); n := n DIV 10; INC(i) END;
+    name[i] := "."; INC(i); n := SHORT(Unix.Getpid());
+    WHILE n > 0 DO name[i] := CHR(n MOD 10 + ORD("0"));  n := n DIV 10; INC(i) END;
+    name[i] := 0X
+  END GetTempName;
+
+  PROCEDURE Create(f: File);
+    VAR stat: Unix.Status; done: BOOLEAN;
+      errno: LONGINT; err: ARRAY 32 OF CHAR;
+  BEGIN
+    IF f.fd = noDesc THEN
+      IF f.state = create THEN GetTempName(f.registerName, f.workName); f.tempFile := TRUE
+      ELSIF f.state = close THEN
+        f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+      END ;
+      errno := Unix.Unlink(f.workName);  (*unlink first to avoid stale NFS handles and to avoid reuse of inodes*)
+f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, (Unix.rdwr + Unix.creat + Unix.trunc))), SHORT(SYSTEM.VAL(LONGINT, ({2, 4,5, 7,8}))));
+      done := f.fd >= 0; errno := Unix.errno();
+      IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (f.fd >= fileTabSize)) THEN
+        IF done & (f.fd >= fileTabSize) THEN errno := Unix.Close(f.fd) END ;
+        Kernel.GC(TRUE);
+        f.fd := Unix.Open(f.workName, SHORT(SYSTEM.VAL(LONGINT, (Unix.rdwr + Unix.creat + Unix.trunc))), SHORT(SYSTEM.VAL(LONGINT, {2, 4,5, 7,8})));
+        done := f.fd >= 0
+      END ;
+      IF done THEN
+        IF f.fd >= fileTabSize THEN errno := Unix.Close(f.fd); Err("too many files open", f, 0)
+        ELSE fileTab[f.fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+          f.state := open; f.pos := 0; errno := Unix.Fstat(f.fd, stat);
+          f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime
+        END
+      ELSE errno := Unix.errno();
+        IF errno = Unix.ENOENT THEN err := "no such directory"
+        ELSIF (errno = Unix.ENFILE) OR (errno = Unix.EMFILE) THEN err := "too many files open"
+        ELSE err := "file not created"
+        END ;
+        Err(err, f, errno)
+      END
+    END
+  END Create;
+
+  PROCEDURE Flush(buf: Buffer);
+    VAR res: LONGINT; f: File; stat: Unix.Status;
+  BEGIN
+    IF buf.chg THEN f := buf.f; Create(f);
+      IF buf.org # f.pos THEN res := Unix.Lseek(f.fd, buf.org, 0) END ;
+      res := Unix.Write(f.fd, SYSTEM.ADR(buf.data), buf.size);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END ;
+      f.pos := buf.org + buf.size;
+      buf.chg := FALSE;
+      res := Unix.Fstat(f.fd, stat);
+      f.mtime := stat.mtime
+    END
+  END Flush;
+
+  PROCEDURE Close* (f: File);
+    VAR i, res: LONGINT;
+  BEGIN
+    IF (f.state # create) OR (f.registerName # "") THEN
+      Create(f); i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) DO Flush(f.bufs[i]); INC(i) END ;
+      res := Unix.Fsync(f.fd);
+      IF res < 0 THEN Err("error in writing file", f, Unix.errno()) END
+    END
+  END Close;
+
+  PROCEDURE Length* (f: File): LONGINT;
+  BEGIN RETURN f.len
+  END Length;
+
+  PROCEDURE New* (name: ARRAY OF CHAR): File;
+    VAR f: File;
+  BEGIN
+    NEW(f); f.workName := ""; COPY(name, f.registerName);
+    f.fd := noDesc; f.state := create; f.len := 0; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+    RETURN f
+  END New;
+
+  PROCEDURE ScanPath(VAR pos: INTEGER; VAR dir: ARRAY OF CHAR);  (* supports ~, ~user and blanks inside path *)
+    VAR i: INTEGER; ch: CHAR; home: ARRAY 256 OF CHAR;
+  BEGIN
+    i := 0; ch := Kernel.OBERON[pos];
+    WHILE (ch = " ") OR (ch = ":") DO INC(pos); ch := Kernel.OBERON[pos] END ;
+    IF ch = "~" THEN
+      INC(pos); ch := Kernel.OBERON[pos];
+      home := ""; Args.GetEnv("HOME", home);
+      WHILE home[i] # 0X DO dir[i] := home[i]; INC(i) END ;
+      IF (ch # "/") & (ch # 0X) & (ch # ":") & (ch # " ") THEN
+        WHILE (i > 0) & (dir[i-1] # "/") DO DEC(i) END
+      END
+    END ;
+    WHILE (ch # 0X) & (ch # ":") DO dir[i] := ch; INC(i); INC(pos); ch := Kernel.OBERON[pos] END ;
+    WHILE (i > 0) & (dir[i-1] = " ") DO DEC(i) END ;
+    dir[i] := 0X
+  END ScanPath;
+
+  PROCEDURE HasDir(VAR name: ARRAY OF CHAR): BOOLEAN;
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0; ch := name[0];
+    WHILE (ch # 0X) & (ch # "/") DO INC(i); ch := name[i] END ;
+    RETURN ch = "/"
+  END HasDir;
+
+  PROCEDURE CacheEntry(dev, ino: LONGINT; mtime: LONGINT): File;
+    VAR f: File; i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < fileTabSize DO
+      f := SYSTEM.VAL(File, fileTab[i]);
+      IF (f # NIL) & (ino = f.ino) & (dev = f.dev) THEN 
+        IF mtime # f.mtime THEN i := 0;
+          WHILE i < nofbufs DO
+            IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+            INC(i)
+          END ;
+          f.swapper := -1; f.mtime := mtime;
+          res := Unix.Fstat(f.fd, stat); f.len := stat.size
+        END ;
+        RETURN f
+      END ;
+      INC(i)
+    END ;
+    RETURN NIL
+  END CacheEntry;
+
+  PROCEDURE Old* (name: ARRAY OF CHAR): File;
+    VAR f: File; fd: INTEGER; res, errno: LONGINT; pos: INTEGER; done: BOOLEAN;
+      dir, path: ARRAY 256 OF CHAR;
+      stat: Unix.Status;
+  BEGIN
+    IF name # "" THEN
+      IF HasDir(name) THEN dir := ""; COPY(name, path)
+      ELSE pos := 0; ScanPath(pos, dir); MakeFileName(dir, name, path); ScanPath(pos, dir)
+      END ;
+      LOOP
+        fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {}))); done := fd >= 0; errno := Unix.errno();
+        IF (~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE))) OR (done & (fd >= fileTabSize)) THEN
+          IF done & (fd >= fileTabSize) THEN res := Unix.Close(fd) END ;
+          Kernel.GC(TRUE);
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          done := fd >= 0; errno := Unix.errno();
+          IF ~done & ((errno = Unix.ENFILE) OR (errno = Unix.EMFILE)) THEN Err("too many files open", f, errno) END
+        END ;
+        IF ~done & ((errno = Unix.EACCES) OR (errno = Unix.EROFS) OR (errno = Unix.EAGAIN)) THEN
+          (* errno EAGAIN observed on Solaris 2.4 *)
+          fd := Unix.Open(path, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {}))); done :=  fd >= 0; errno := Unix.errno()
+        END ;
+IF (~done) & (errno # Unix.ENOENT) THEN 
+  Console.String("warning Files0.Old "); Console.String(name); 
+  Console.String(" errno = "); Console.Int(errno, 0); Console.Ln;
+END ;
+        IF done THEN
+          res := Unix.Fstat(fd, stat);
+          f := CacheEntry(stat.dev, stat.ino, stat.mtime);
+          IF f # NIL THEN res := Unix.Close(fd); RETURN f
+          ELSIF fd >= fileTabSize THEN res := Unix.Close(fd); Err("too many files open", f, 0)
+          ELSE NEW(f); fileTab[fd] := SYSTEM.VAL(LONGINT, f); INC(Kernel.nofiles); Kernel.RegisterObject(f, Finalize);
+            f.fd := fd; f.state := open; f.len := stat.size; f.pos := 0; f.swapper := -1; (*all f.buf[i] = NIL*)
+            COPY(name, f.workName); f.registerName := ""; f.tempFile := FALSE;
+            f.dev := stat.dev; f.ino := stat.ino; f.mtime := stat.mtime;
+            RETURN f
+          END
+        ELSIF dir = "" THEN RETURN NIL
+        ELSE MakeFileName(dir, name, path); ScanPath(pos, dir)
+        END
+      END
+    ELSE RETURN NIL
+    END
+  END Old;
+
+  PROCEDURE Purge* (f: File);
+    VAR i: INTEGER; stat: Unix.Status; res: LONGINT;
+  BEGIN i := 0;
+    WHILE i < nofbufs DO
+      IF f.bufs[i] # NIL THEN f.bufs[i].org := -1; f.bufs[i] := NIL END ;
+      INC(i)
+    END ;
+    IF f.fd # noDesc THEN res := Unix.Ftruncate(f.fd, 0); res := Unix.Lseek(f.fd, 0, 0) END ;
+    f.pos := 0; f.len := 0; f.swapper := -1;
+    res := Unix.Fstat(f.fd, stat); f.mtime := stat.mtime
+  END Purge;
+
+  PROCEDURE GetDate* (f: File; VAR t, d: LONGINT);
+    VAR stat: Unix.Status; clock, res: LONGINT; time: Time;
+  BEGIN
+    Create(f); res := Unix.Fstat(f.fd, stat);
+    time := localtime(stat.mtime);
+    t := time.sec + ASH(time.min, 6) + ASH(time.hour, 12);
+    d := time.mday + ASH(time.mon+1, 5) + ASH(time.year MOD 100, 9)
+  END GetDate;
+
+  PROCEDURE Pos* (VAR r: Rider): LONGINT;
+  BEGIN RETURN r.org + r.offset
+  END Pos;
+
+  PROCEDURE Set* (VAR r: Rider; f: File; pos: LONGINT);
+    VAR org, offset, i, n, res: LONGINT; buf: Buffer;
+  BEGIN
+    IF f # NIL THEN
+      IF pos > f.len THEN pos := f.len ELSIF pos < 0 THEN pos := 0 END ;
+      offset := pos MOD bufsize; org := pos - offset; i := 0;
+      WHILE (i < nofbufs) & (f.bufs[i] # NIL) & (org # f.bufs[i].org) DO INC(i) END ;
+      IF i < nofbufs THEN
+        IF f.bufs[i] = NIL THEN NEW(buf); buf.chg := FALSE; buf.org := -1; buf.f := f; f.bufs[i] := buf
+        ELSE buf := f.bufs[i]
+        END
+      ELSE
+        f.swapper := (f.swapper + 1) MOD nofbufs;
+        buf := f.bufs[f.swapper];
+        Flush(buf)
+      END ;
+      IF buf.org # org THEN
+        IF org = f.len THEN buf.size := 0
+        ELSE Create(f);
+          IF f.pos # org THEN res := Unix.Lseek(f.fd, org, 0) END ;
+          n := Unix.ReadBlk(f.fd, buf.data);
+          IF n < 0 THEN Err("read from file not done", f, Unix.errno()) END ;
+          f.pos := org + n;
+          buf.size := n
+        END ;
+        buf.org := org; buf.chg := FALSE
+      END
+    ELSE buf := NIL; org := 0; offset := 0
+    END ;
+    r.buf := buf; r.org := org; r.offset := offset; r.eof := FALSE; r.res := 0
+  END Set;
+
+  PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+    VAR offset: LONGINT; buf: Buffer;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF r.org # buf.org THEN Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset END ;
+    IF (offset < buf.size) THEN
+      x := buf.data[offset]; r.offset := offset + 1
+    ELSIF r.org + offset < buf.f.len THEN
+      Set(r, r.buf.f, r.org + offset);
+      x := r.buf.data[0]; r.offset := 1
+    ELSE
+      x := 0X; r.eof := TRUE 
+    END
+  END Read;
+
+  PROCEDURE ReadBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := buf.size - offset; 
+      IF restInBuf = 0 THEN r.res := n; r.eof := TRUE; RETURN
+      ELSIF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(buf.data) + offset, SYSTEM.ADR(x) + xpos, min);
+      INC(offset, min); r.offset := offset; INC(xpos, min); DEC(n, min)
+    END ;
+    r.res := 0; r.eof := FALSE
+  END ReadBytes;
+
+  PROCEDURE ReadByte* (VAR r : Rider; VAR x : ARRAY OF SYSTEM.BYTE);
+  BEGIN
+     ReadBytes(r, x, 1);
+  END ReadByte;
+
+  PROCEDURE Base* (VAR r: Rider): File;
+  BEGIN RETURN r.buf.f
+  END Base;
+
+  PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+    VAR buf: Buffer; offset: LONGINT;
+  BEGIN
+    buf := r.buf; offset := r.offset;
+    IF (r.org # buf.org) OR (offset >= bufsize) THEN
+      Set(r, buf.f, r.org + offset);
+      buf := r.buf; offset := r.offset
+    END ;
+    buf.data[offset] := x;
+    buf.chg := TRUE;
+    IF offset = buf.size THEN
+      INC(buf.size); INC(buf.f.len)
+    END ;
+    r.offset := offset + 1; r.res := 0
+  END Write;
+
+  PROCEDURE WriteBytes* (VAR r: Rider; VAR x: ARRAY OF SYSTEM.BYTE; n: LONGINT);
+    VAR xpos, min, restInBuf, offset: LONGINT; buf: Buffer;
+  BEGIN
+    IF n > LEN(x) THEN IdxTrap END ;
+    xpos := 0; buf := r.buf; offset := r.offset;
+    WHILE n > 0 DO
+      IF (r.org # buf.org) OR (offset >= bufsize) THEN
+        Set(r, buf.f, r.org + offset);
+        buf := r.buf; offset := r.offset
+      END ;
+      restInBuf := bufsize - offset;
+      IF n > restInBuf THEN min := restInBuf ELSE min := n END ;
+      SYSTEM.MOVE(SYSTEM.ADR(x) + xpos, SYSTEM.ADR(buf.data) + offset, min);
+      INC(offset, min); r.offset := offset;
+      IF offset > buf.size THEN INC(buf.f.len, offset - buf.size); buf.size := offset END ;
+      INC(xpos, min); DEC(n, min); buf.chg := TRUE
+    END ;
+    r.res := 0
+  END WriteBytes;
+
+(* another solution would be one that is similar to ReadBytes, WriteBytes.
+No code duplication, more symmetric, only two ifs for
+Read and Write in buffer, buf.size replaced by bufsize in Write ops, buf.size and len
+must be made consistent with offset (if offset > buf.size) in a lazy way.
+
+PROCEDURE Write* (VAR r: Rider; x: SYSTEM.BYTE);
+  VAR buf: Buffer; offset: LONGINT;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= bufsize) OR (r.org # buf.org) THEN 
+    Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset;
+  END ;
+  buf.data[offset] := x; r.offset := offset + 1; buf.chg := TRUE
+END Write;
+
+PROCEDURE WriteBytes ...
+
+PROCEDURE Read* (VAR r: Rider; VAR x: SYSTEM.BYTE);
+  VAR offset: LONGINT; buf: Buffer;
+BEGIN
+  buf := r.buf; offset := r.offset;
+  IF (offset >= buf.size) OR (r.org # buf.org) THEN
+    IF r.org + offset >= buf.f.len THEN x := 0X; r.eof := TRUE; RETURN
+    ELSE Set(r, buf.f, r.org + offset); buf := r.buf; offset := r.offset
+    END
+  END ;
+  x := buf.data[offset]; r.offset := offset + 1
+END Read;
+
+but this would also affect Set, Length, and Flush.
+Especially Length would become fairly complex.
+*)
+
+  PROCEDURE Delete* (name: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Unlink(name));
+    res := SHORT(Unix.errno())
+  END Delete;
+
+  PROCEDURE Rename* (old, new: ARRAY OF CHAR; VAR res: INTEGER);
+    VAR fdold, fdnew: INTEGER; n, errno, r: LONGINT;
+      ostat, nstat: Unix.Status;
+      buf: ARRAY 4096 OF CHAR;
+  BEGIN
+    r := Unix.Stat(old, ostat);
+    IF r >= 0 THEN
+      r := Unix.Stat(new, nstat);
+      IF (r >= 0) & ((ostat.dev # nstat.dev) OR (ostat.ino # nstat.ino)) THEN
+        Delete(new, res);  (* work around stale nfs handles *)
+      END ;
+      r := Unix.Rename(old, new);
+      IF r < 0 THEN res := SHORT(Unix.errno());
+        IF res = Unix.EXDEV THEN (* cross device link, move the file *)
+          fdold := Unix.Open(old, SHORT(SYSTEM.VAL(LONGINT, Unix.rdonly)), SHORT(SYSTEM.VAL(LONGINT, {})));
+          IF fdold < 0 THEN res := 2; RETURN END ;
+          fdnew := Unix.Open(new, SHORT(SYSTEM.VAL(LONGINT, Unix.rdwr + Unix.creat + Unix.trunc)), SHORT(SYSTEM.VAL(LONGINT, {2,  4,5,  7,8})));
+          IF fdnew < 0 THEN r := Unix.Close(fdold); res := 3; RETURN END ;
+          n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize);
+          WHILE n > 0 DO
+            r := Unix.Write(fdnew, SYSTEM.ADR(buf), n);
+            IF r < 0 THEN errno := Unix.errno(); r := Unix.Close(fdold); r := Unix.Close(fdnew);
+              Err("cannot move file", NIL, errno)
+            END ;
+            n := Unix.Read(fdold, SYSTEM.ADR(buf), bufsize)
+          END ;
+          errno := Unix.errno();
+          r := Unix.Close(fdold); r := Unix.Close(fdnew);
+          IF n = 0 THEN r := Unix.Unlink(old); res := 0
+          ELSE Err("cannot move file", NIL, errno)
+          END ;
+        ELSE RETURN (* res is Unix.Rename return code *)
+        END
+      END ;
+      res := 0
+    ELSE res := 2 (* old file not found *)
+    END
+  END Rename;
+
+  PROCEDURE Register* (f: File);
+    VAR idx, errno: INTEGER; f1: File; file: ARRAY 104 OF CHAR;
+  BEGIN
+    IF (f.state = create) & (f.registerName # "") THEN f.state := close (* shortcut renaming *) END ;
+    Close(f);
+    IF f.registerName # "" THEN
+      Rename(f.workName, f.registerName, errno);
+      IF errno # 0 THEN COPY(f.registerName, file); HALT(99) END ;
+      f.workName := f.registerName; f.registerName := ""; f.tempFile := FALSE
+    END
+  END Register;
+
+  PROCEDURE ChangeDirectory*(path: ARRAY OF CHAR; VAR res: INTEGER);
+  BEGIN
+    res := SHORT(Unix.Chdir(path));
+    getcwd(Kernel.CWD)
+  END ChangeDirectory;
+
+  PROCEDURE FlipBytes(VAR src, dest: ARRAY OF SYSTEM.BYTE);
+    VAR i, j: LONGINT;
+  BEGIN
+    IF ~Kernel.littleEndian THEN i := LEN(src); j := 0;
+      WHILE i > 0 DO DEC(i); dest[j] := src[i]; INC(j) END
+    ELSE SYSTEM.MOVE(SYSTEM.ADR(src), SYSTEM.ADR(dest), LEN(src))
+    END
+  END FlipBytes;
+
+  PROCEDURE ReadBool* (VAR R: Rider; VAR x: BOOLEAN);
+  BEGIN Read(R, SYSTEM.VAL(CHAR, x))
+  END ReadBool;
+
+  PROCEDURE ReadInt* (VAR R: Rider; VAR x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN ReadBytes(R, b, 2);
+    x := ORD(b[0]) + ORD(b[1])*256
+  END ReadInt;
+  
+  PROCEDURE ReadLInt* (VAR R: Rider; VAR x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H
+  END ReadLInt;
+  
+  PROCEDURE ReadSet* (VAR R: Rider; VAR x: SET);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4);
+    x := SYSTEM.VAL(SET, ORD(b[0]) + ORD(b[1])*100H + ORD(b[2])*10000H + ORD(b[3])*1000000H)
+  END ReadSet;
+  
+  PROCEDURE ReadReal* (VAR R: Rider; VAR x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN ReadBytes(R, b, 4); FlipBytes(b, x)
+  END ReadReal;
+  
+  PROCEDURE ReadLReal* (VAR R: Rider; VAR x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN ReadBytes(R, b, 8); FlipBytes(b, x)
+  END ReadLReal;
+  
+  PROCEDURE ReadString* (VAR R: Rider; VAR x: ARRAY OF CHAR);
+    VAR i: INTEGER; ch: CHAR;
+  BEGIN i := 0;
+    REPEAT Read(R, ch); x[i] := ch; INC(i) UNTIL ch = 0X
+  END ReadString;
+  
+  PROCEDURE ReadNum* (VAR R: Rider; VAR x: LONGINT);
+    VAR s: SHORTINT; ch: CHAR; n: LONGINT;
+  BEGIN s := 0; n := 0; Read(R, ch);
+    WHILE ORD(ch) >= 128 DO INC(n, ASH(ORD(ch) - 128, s) ); INC(s, 7); Read(R, ch) END;
+    INC(n, ASH(ORD(ch) MOD 64 - ORD(ch) DIV 64 * 64, s) );
+    x := n
+  END ReadNum;
+  
+  PROCEDURE WriteBool* (VAR R: Rider; x: BOOLEAN);
+  BEGIN Write(R, SYSTEM.VAL(CHAR, x))
+  END WriteBool;
+  
+  PROCEDURE WriteInt* (VAR R: Rider; x: INTEGER);
+    VAR b: ARRAY 2 OF CHAR;
+  BEGIN b[0] := CHR(x); b[1] := CHR(x DIV 256);
+    WriteBytes(R, b, 2);
+  END WriteInt;
+  
+  PROCEDURE WriteLInt* (VAR R: Rider; x: LONGINT);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN
+    b[0] := CHR(x); b[1] := CHR(x DIV 100H); b[2] := CHR(x DIV 10000H); b[3] := CHR(x DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteLInt;
+  
+  PROCEDURE WriteSet* (VAR R: Rider; x: SET);
+    VAR b: ARRAY 4 OF CHAR; i: LONGINT;
+  BEGIN i := SYSTEM.VAL(LONGINT, x);
+    b[0] := CHR(i); b[1] := CHR(i DIV 100H); b[2] := CHR(i DIV 10000H); b[3] := CHR(i DIV 1000000H);
+    WriteBytes(R, b, 4);
+  END WriteSet;
+  
+  PROCEDURE WriteReal* (VAR R: Rider; x: REAL);
+    VAR b: ARRAY 4 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 4)
+  END WriteReal;
+  
+  PROCEDURE WriteLReal* (VAR R: Rider; x: LONGREAL);
+    VAR b: ARRAY 8 OF CHAR;
+  BEGIN FlipBytes(x, b); WriteBytes(R, b, 8)
+  END WriteLReal;
+  
+  PROCEDURE WriteString* (VAR R: Rider; x: ARRAY [1] OF CHAR);
+    VAR i: INTEGER;
+  BEGIN i := 0;
+    WHILE x[i] # 0X DO INC(i) END ;
+    WriteBytes(R, x, i+1)
+  END WriteString;
+  
+  PROCEDURE WriteNum* (VAR R: Rider; x: LONGINT);
+  BEGIN
+    WHILE (x < - 64) OR (x > 63) DO Write(R, CHR(x MOD 128 + 128)); x := x DIV 128 END;
+    Write(R, CHR(x MOD 128))
+  END WriteNum;
+
+  PROCEDURE Finalize(o: SYSTEM.PTR);
+    VAR f: File; res: LONGINT;
+  BEGIN
+    f := SYSTEM.VAL(File, o);
+    IF f.fd >= 0 THEN
+      fileTab[f.fd] := 0; res := Unix.Close(f.fd); f.fd := -1; DEC(Kernel.nofiles);
+      IF f.tempFile THEN res := Unix.Unlink(f.workName) END
+    END
+  END Finalize;
+
+  PROCEDURE Init;
+    VAR i: LONGINT;
+  BEGIN
+    i := 0; WHILE i < fileTabSize DO fileTab[i] := 0; INC(i) END ;
+    tempno := -1; Kernel.nofiles := 0
+  END Init;
+
+BEGIN Init
+END Files0.
diff --git a/src/lib/system/linux/gcc/x86_64/Unix.Mod b/src/lib/system/linux/gcc/x86_64/Unix.Mod
index 5bbea785..195bb41d 100644
--- a/src/lib/system/linux/gcc/x86_64/Unix.Mod
+++ b/src/lib/system/linux/gcc/x86_64/Unix.Mod
@@ -292,16 +292,18 @@ from man gettimeofday
   END ;
 
   Sockaddr* = RECORD
-    family*: INTEGER;
-    port*: INTEGER;
-    internetAddr*: LONGINT;
-    pad*: ARRAY 8 OF CHAR;
+    family0*, family1*: SHORTINT;
+    pad0, pad1: SHORTINT;
+    pad2 : INTEGER;
+    (*port*: INTEGER;
+    internetAddr*: LONGINT;*)
+    pad*: ARRAY 14 OF CHAR;
   END ;
   
   HostEntry* = POINTER [1] TO Hostent;
   Hostent* = RECORD
     name*, aliases*: LONGINT;
-    addrtype*, length*: LONGINT;
+    addrtype*, length*: INTEGER;
     addrlist*: LONGINT; (*POINTER TO POINTER TO LONGINT, network byte order*)
   END;
 
@@ -337,71 +339,71 @@ from man gettimeofday
     RETURN err()
   END errno;
 
-  PROCEDURE -Exit*(n: LONGINT)
+  PROCEDURE -Exit*(n: INTEGER)
     "exit(n)";
 
-  PROCEDURE -Fork*(): LONGINT
+  PROCEDURE -Fork*(): INTEGER
     "fork()";
 
-  PROCEDURE -Wait*(VAR status: LONGINT): LONGINT
+  PROCEDURE -Wait*(VAR status: INTEGER): INTEGER
     "wait(status)";
 
-  PROCEDURE -Select*(width: LONGINT; VAR readfds, writefds, exceptfds: FdSet; VAR timeout: Timeval): LONGINT
+  PROCEDURE -Select*(width: INTEGER; VAR readfds, writefds, exceptfds: FdSet; VAR timeout: Timeval): INTEGER
     "select(width, readfds, writefds, exceptfds, timeout)";
 
-  PROCEDURE -Gettimeofday* (VAR tv: Timeval; VAR tz: Timezone) : LONGINT
+  PROCEDURE -Gettimeofday* (VAR tv: Timeval; VAR tz: Timezone) : INTEGER
     "gettimeofday(tv, tz)";
 
-  PROCEDURE -Read* (fd, buf, nbyte: LONGINT): LONGINT
+  PROCEDURE -Read* (fd: INTEGER; buf, nbyte: LONGINT): LONGINT
     "read(fd, buf, nbyte)";
 
-  PROCEDURE -ReadBlk* (fd: LONGINT; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
+  PROCEDURE -ReadBlk* (fd: INTEGER; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
     "read(fd, buf, buf__len)";
 
-  PROCEDURE -Write* (fd, buf, nbyte: LONGINT): LONGINT
+  PROCEDURE -Write* (fd: INTEGER; buf, nbyte: LONGINT): LONGINT
     "write(fd, buf, nbyte)";
 
-  PROCEDURE -WriteBlk* (fd: LONGINT; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
+  PROCEDURE -WriteBlk* (fd: INTEGER; VAR buf: ARRAY OF SYSTEM.BYTE): LONGINT
     "write(fd, buf, buf__len)";
 
-  PROCEDURE -Dup*(fd: LONGINT): LONGINT
+  PROCEDURE -Dup*(fd: INTEGER): INTEGER
     "dup(fd)";
 
-  PROCEDURE -Dup2*(fd1, fd2: LONGINT): LONGINT
+  PROCEDURE -Dup2*(fd1, fd2: INTEGER): INTEGER
     "dup(fd1, fd2)";
 
-  PROCEDURE -Pipe*(fds : LONGINT): LONGINT
+  PROCEDURE -Pipe*(fds : LONGINT): INTEGER
      "pipe(fds)";
 
-  PROCEDURE -Getpid*(): LONGINT
+  PROCEDURE -Getpid*(): INTEGER
     "getpid()";
 
-  PROCEDURE -Getuid*(): LONGINT
+  PROCEDURE -Getuid*(): INTEGER
     "getuid()";
 
-  PROCEDURE -Geteuid*(): LONGINT
+  PROCEDURE -Geteuid*(): INTEGER 
     "geteuid()";
 
-  PROCEDURE -Getgid*(): LONGINT
+  PROCEDURE -Getgid*(): INTEGER
     "getgid()";
 
-  PROCEDURE -Getegid*(): LONGINT
+  PROCEDURE -Getegid*(): INTEGER
     "getegid()";
 
-  PROCEDURE -Unlink*(name: Name): LONGINT
+  PROCEDURE -Unlink*(name: Name): INTEGER
     "unlink(name)";
 
-  PROCEDURE -Open*(name: Name; flag, mode: SET): LONGINT
+  PROCEDURE -Open*(name: Name; flag: INTEGER; mode: LONGINT): INTEGER
     "open(name, flag, mode)";
 
-  PROCEDURE -Close*(fd: LONGINT): LONGINT
+  PROCEDURE -Close*(fd: INTEGER): INTEGER
     "close(fd)";
 
-  PROCEDURE -stat(name: Name; VAR statbuf: Status): LONGINT
+  PROCEDURE -stat(name: Name; VAR statbuf: Status): INTEGER
     "stat((const char*)name, (struct stat*)statbuf)";
 
-  PROCEDURE Stat*(name: Name; VAR statbuf: Status): LONGINT;
-    VAR res: LONGINT;
+  PROCEDURE Stat*(name: Name; VAR statbuf: Status): INTEGER;
+    VAR res: INTEGER;
   BEGIN
     res := stat(name, statbuf);
     (* make the first 4 bytes as unique as possible (used in module Files for caching!) *) 
@@ -411,11 +413,11 @@ from man gettimeofday
     RETURN res;
   END Stat;
 
-  PROCEDURE -fstat(fd: LONGINT; VAR statbuf: Status): LONGINT   
+  PROCEDURE -fstat(fd: INTEGER; VAR statbuf: Status): INTEGER   
     "fstat(fd, (struct stat*)statbuf)";
 
-  PROCEDURE Fstat*(fd: LONGINT; VAR statbuf: Status): LONGINT;
-    VAR res: LONGINT;
+  PROCEDURE Fstat*(fd: INTEGER; VAR statbuf: Status): INTEGER;
+    VAR res: INTEGER;
   BEGIN
     res := fstat(fd, statbuf);
     (* make the first 4 bytes as unique as possible (used in module Files for caching!) *) 
@@ -424,81 +426,81 @@ from man gettimeofday
     RETURN res;
   END Fstat;
 
-  PROCEDURE -Fchmod*(fd, mode: LONGINT): LONGINT
+  PROCEDURE -Fchmod*(fd, mode: INTEGER): INTEGER
     "fchmod(fd, mode)";
 
-  PROCEDURE -Chmod*(path: Name; mode: LONGINT): LONGINT
+  PROCEDURE -Chmod*(path: Name; mode: INTEGER): INTEGER
     "chmod(path, mode)";
 
-  PROCEDURE -Lseek*(fd, offset, origin: LONGINT): LONGINT
+  PROCEDURE -Lseek*(fd: INTEGER; offset: LONGINT; origin: INTEGER): LONGINT
     "lseek(fd, offset, origin)";
 
-  PROCEDURE -Fsync*(fd: LONGINT): LONGINT
+  PROCEDURE -Fsync*(fd: INTEGER): INTEGER
     "fsync(fd)";
 
-  PROCEDURE -Fcntl*(fd, cmd, arg: LONGINT ): LONGINT
+  PROCEDURE -Fcntl*(fd: INTEGER; cmd: INTEGER; arg: LONGINT ): INTEGER
     "fcntl(fd, cmd, arg)";
 
-  PROCEDURE -Flock*(fd, operation: LONGINT): LONGINT
+  PROCEDURE -Flock*(fd, operation: INTEGER): INTEGER
     "flock(fd, operation)";
 
-  PROCEDURE -Ftruncate*(fd, length: LONGINT): LONGINT
+  PROCEDURE -Ftruncate*(fd: INTEGER; length: LONGINT): INTEGER
     "ftruncate(fd, length)";
 
-  PROCEDURE -Readblk*(fd: LONGINT; VAR buf: ARRAY OF SYSTEM.BYTE; len: LONGINT): LONGINT
+  PROCEDURE -Readblk*(fd: INTEGER; VAR buf: ARRAY OF SYSTEM.BYTE; len: LONGINT): LONGINT
     "read(fd, buf, len)";
 
-  PROCEDURE -Rename*(old, new: Name): LONGINT
+  PROCEDURE -Rename*(old, new: Name): INTEGER
     "rename(old, new)";
 
-  PROCEDURE -Chdir*(path: Name): LONGINT
+  PROCEDURE -Chdir*(path: Name): INTEGER
     "chdir(path)";
 
-  PROCEDURE -Ioctl*(fd, request, arg: LONGINT): LONGINT
+  PROCEDURE -Ioctl*(fd: INTEGER; request, arg: LONGINT): INTEGER
     "ioctl(fd, request, arg)";
 
-  PROCEDURE -Kill*(pid, sig: LONGINT): LONGINT
+  PROCEDURE -Kill*(pid, sig: INTEGER): INTEGER
     "kill(pid, sig)";
 
-  PROCEDURE -Sigsetmask*(mask: LONGINT): LONGINT
+  PROCEDURE -Sigsetmask*(mask: INTEGER): INTEGER
     "sigsetmask(mask)";
 
   PROCEDURE -Sleep*(ms : INTEGER): INTEGER
-      "sleep(ms)";
+      "(INTEGER)sleep(ms)";
 
   PROCEDURE -Nanosleep*(VAR req : Timeval; VAR rem : Timeval): INTEGER
-    "nanosleep(req, rem)";
+    "(INTEGER)nanosleep(req, rem)";
 
   (* TCP/IP networking *)
 
   PROCEDURE -Gethostbyname*(name: Name): HostEntry
     "(Unix_HostEntry)gethostbyname(name)";
 
-  PROCEDURE -Gethostname*(VAR name: Name): LONGINT
+  PROCEDURE -Gethostname*(VAR name: Name): INTEGER
     "gethostname(name, name__len)";
 
-  PROCEDURE -Socket*(af, type, protocol: LONGINT): LONGINT
+  PROCEDURE -Socket*(af, type, protocol: INTEGER): INTEGER
     "socket(af, type, protocol)";
 
-  PROCEDURE -Connect*(socket: LONGINT; name: Sockaddr; namelen: LONGINT): LONGINT
+  PROCEDURE -Connect*(socket: INTEGER; name: Sockaddr; namelen: INTEGER): INTEGER
     "connect(socket, &(name), namelen)";
 
-  PROCEDURE -Getsockname*(socket: LONGINT; VAR name: Sockaddr; VAR namelen: LONGINT): LONGINT
+  PROCEDURE -Getsockname*(socket: INTEGER; VAR name: Sockaddr; VAR namelen: INTEGER): INTEGER
     "getsockname(socket, name, namelen)";
 
-  PROCEDURE -Bind*(socket: LONGINT; name: Sockaddr; namelen: LONGINT): LONGINT
+  PROCEDURE -Bind*(socket: INTEGER; name: Sockaddr; namelen: INTEGER): INTEGER
     "bind(socket, &(name), namelen)";
 
-  PROCEDURE -Listen*(socket, backlog: LONGINT): LONGINT
+  PROCEDURE -Listen*(socket, backlog: INTEGER): INTEGER
     "listen(socket, backlog)";
 
-  PROCEDURE -Accept*(socket: LONGINT; VAR addr: Sockaddr; VAR addrlen: LONGINT): LONGINT
+  PROCEDURE -Accept*(socket: INTEGER; VAR addr: Sockaddr; VAR addrlen: INTEGER): LONGINT
     "accept(socket, addr, addrlen)";
 
-  PROCEDURE -Recv*(socket, bufadr, buflen, flags: LONGINT): LONGINT
+  PROCEDURE -Recv*(socket: INTEGER; bufadr, buflen: LONGINT; flags: INTEGER): LONGINT
     "recv(socket, bufadr, buflen, flags)";
 
-  PROCEDURE -Send*(socket, bufadr, buflen, flags: LONGINT): LONGINT
+  PROCEDURE -Send*(socket: INTEGER; bufadr, buflen: LONGINT; flags: INTEGER): LONGINT
     "send(socket, bufadr, buflen, flags)";
 
    PROCEDURE -sys(str: ARRAY OF CHAR): INTEGER   (* need this to call external tools like gcc or gas; noch *)
diff --git a/src/lib/ulm/armv6j/ulmSysConversions.Mod b/src/lib/ulm/armv6j/ulmSysConversions.Mod
deleted file mode 100644
index f8ea3fbb..00000000
--- a/src/lib/ulm/armv6j/ulmSysConversions.Mod
+++ /dev/null
@@ -1,574 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-1994 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: SysConversi.om,v 1.2 1997/07/30 09:38:16 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: SysConversi.om,v $
-   Revision 1.2  1997/07/30  09:38:16  borchert
-   bug in ReadConv fixed: cv.flags was used but not set for
-                          counts > 1
-
-   Revision 1.1  1994/02/23  07:58:28  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 8/90
-   adapted to linux cae 02/01
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmSysConversions;
-
-   (* convert Oberon records to/from C structures *)
-
-   IMPORT Events := ulmEvents, Objects := ulmObjects, Priorities := ulmPriorities, Streams := ulmStreams, Strings := ulmStrings,
-      SYS := SYSTEM, SysTypes := ulmSysTypes, Texts := ulmTexts;
-
-   TYPE
-      Address* = SysTypes.Address;
-      Size* = Address;
-
-   (* format:
-
-      Format = Conversion { "/" Conversion } .
-      Conversion = [ Factors ] ConvChars [ Comment ] .
-      Factors = Array | Factor | Array Factor | Factor Array .
-      Array = Integer ":" .
-      Factor = Integer "*" .
-      ConvChars = OberonType CType | Skip CType | OberonType Skip .
-      OberonType = "a" | "b" | "c" | "s" | "i" | "l" | "S" .
-      CType = "a" | "c" | "s" | "i" | "l" .
-      Integer = Digit { Digit } .
-      Digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" .
-      Skip = "-" .
-      Comment = "=" { AnyChar } .
-      AnyChar = (* all characters except "/" *) .
-
-      Oberon data types:
-
-      a: Address
-      b: SYS.BYTE
-      B: BOOLEAN
-      c: CHAR
-      s: SHORTINT
-      i: INTEGER
-      l: LONGINT
-      S: SET
-
-      C data types:
-
-      a: char *
-      c: /* signed */ char
-      C: unsigned char
-      s: short int
-      S: unsigned short int
-      i: int
-      I: unsigned int
-      u: unsigned int
-      l: long int
-      L: unsigned long int
-
-      example:
-
-      conversion from
-
-	 Rec =
-	    RECORD
-	       a, b: INTEGER;
-	       c: CHAR;
-	       s: SET;
-	       f: ARRAY 3 OF INTEGER;
-	    END;
-
-      to
-
-	 struct rec {
-	    short a, b;
-	    char c;
-	    int xx;	/* to be skipped on conversion */
-	    int s;
-	    int f[3];
-	 };
-
-      or vice versa:
-
-	 "2*is=a,b/cc=c/-i=xx/Si=s/3:ii=f"
-
-      The comments allow to give the field names.
-   *)
-
-   CONST
-      (* conversion flags *)
-      unsigned = 0;		(* suppress sign extension *)
-      boolean = 1;		(* convert anything # 0 to 1 *)
-   TYPE
-      Flags = SET;
-      Event* = POINTER TO EventRec;
-      EventRec* =
-	 RECORD
-	    (Events.EventRec)
-	    format*: Events.Message;
-	 END;
-      ConvStream = POINTER TO ConvStreamRec;
-      ConvStreamRec =
-	 RECORD
-	    fmt: Texts.Text;
-	    char: CHAR;
-	    eof: BOOLEAN;
-	    (* 1: Oberon type
-	       2: C type
-	    *)
-	    type1, type2: CHAR; length: INTEGER; left: INTEGER;
-	    offset1, offset2: Address;
-	    size1, size2: Address; elementsleft: INTEGER; flags: Flags;
-	 END;
-
-      Format* = POINTER TO FormatRec;
-      FormatRec* =
-	 RECORD
-	    (Objects.ObjectRec)
-	    offset1, offset2: Address;
-	    size1, size2: Address;
-	    flags: Flags;
-	    next: Format;
-	 END;
-   VAR
-      badformat*: Events.EventType;
-
-   PROCEDURE Error(cv: ConvStream; msg: ARRAY OF CHAR);
-      VAR
-	 event: Event;
-   BEGIN
-      NEW(event);
-      event.type := badformat;
-      event.message := "SysConversions: ";
-      Strings.Concatenate(event.message, msg);
-      Strings.Read(event.format, cv.fmt);
-      Events.Raise(event);
-      cv.eof := TRUE;
-      cv.char := 0X;
-      cv.left := 0;
-      cv.elementsleft := 0;
-   END Error;
-
-   PROCEDURE SizeError(msg, format: ARRAY OF CHAR);
-      VAR
-	 event: Event;
-   BEGIN
-      NEW(event);
-      event.type := badformat;
-      event.message := "SysConversions: ";
-      Strings.Concatenate(event.message, msg);
-      COPY(format, event.format);
-      Events.Raise(event);
-   END SizeError;
-
-   PROCEDURE NextCh(cv: ConvStream);
-   BEGIN
-      cv.eof := cv.eof OR ~Streams.ReadByte(cv.fmt, cv.char) OR (cv.char = 0X);
-      IF cv.eof THEN
-	 cv.char := 0X;
-      END;
-   END NextCh;
-
-   PROCEDURE IsDigit(ch: CHAR) : BOOLEAN;
-   BEGIN
-      RETURN (ch >= "0") & (ch <= "9")
-   END IsDigit;
-
-   PROCEDURE ReadInt(cv: ConvStream; VAR i: INTEGER);
-   BEGIN
-      i := 0;
-      REPEAT
-	 i := 10 * i + ORD(cv.char) - ORD("0");
-	 NextCh(cv);
-      UNTIL ~IsDigit(cv.char);
-   END ReadInt;
-
-   PROCEDURE Open(VAR cv: ConvStream; format: ARRAY OF CHAR);
-   BEGIN
-      NEW(cv);
-      Texts.Open(SYS.VAL(Streams.Stream, cv.fmt));
-      Strings.Write(cv.fmt, format);
-      cv.left := 0; cv.elementsleft := 0;
-      cv.offset1 := 0; cv.offset2 := 0;
-      cv.eof := FALSE;
-      NextCh(cv);
-   END Open;
-
-   PROCEDURE Close(VAR cv: ConvStream);
-   BEGIN
-      IF ~Streams.Close(cv.fmt) THEN END;
-   END Close;
-
-   PROCEDURE ScanConv(cv: ConvStream;
-		      VAR type1, type2: CHAR;
-		      VAR length: INTEGER) : BOOLEAN;
-      VAR
-	 i: INTEGER;
-	 factor: INTEGER;
-   BEGIN
-      IF cv.left > 0 THEN
-	 type1 := cv.type1;
-	 type2 := cv.type2;
-	 length := cv.length;
-	 DEC(cv.left);
-	 RETURN TRUE
-      END;
-      IF cv.char = "/" THEN
-	 NextCh(cv);
-      END;
-      IF cv.eof THEN
-	 RETURN FALSE
-      END;
-      factor := 0; length := 0;
-      WHILE IsDigit(cv.char) DO
-	 ReadInt(cv, i);
-	 IF i <= 0 THEN
-	    Error(cv, "integer must be positive"); RETURN FALSE
-	 END;
-	 IF cv.char = ":" THEN
-	    IF length # 0 THEN
-	       Error(cv, "multiple length specification"); RETURN FALSE
-	    END;
-	    length := i;
-	    NextCh(cv);
-	 ELSIF cv.char = "*" THEN
-	    IF factor # 0 THEN
-	       Error(cv, "multiple factor specification"); RETURN FALSE
-	    END;
-	    factor := i; cv.left := factor - 1;
-	    NextCh(cv);
-	 ELSE
-	    Error(cv, "factor or length expected"); RETURN FALSE
-	 END;
-      END;
-      type1 := cv.char; NextCh(cv);
-      type2 := cv.char; NextCh(cv);
-      IF cv.left > 0 THEN
-	 cv.type1 := type1; cv.type2 := type2; cv.length := length;
-      END;
-      IF cv.char = "=" THEN (* comment *)
-	 REPEAT
-	    NextCh(cv);
-	 UNTIL cv.eof OR (cv.char = "/");
-      END;
-      RETURN TRUE
-   END ScanConv;
-
-   PROCEDURE Align(VAR offset: Address; boundary: Address);
-   BEGIN
-      IF SYS.VAL (INTEGER, offset) MOD SYS.VAL (INTEGER, boundary) # 0 THEN
-	 offset := SYS.VAL (INTEGER, offset) + (SYS.VAL (INTEGER, boundary) - SYS.VAL (INTEGER, offset) MOD SYS.VAL (INTEGER, boundary));
-      END;
-   END Align;
-
-   PROCEDURE ReadConv(cv: ConvStream;
-		      VAR offset1, offset2: Address;
-		      VAR size1, size2: Address;
-		      VAR flags: Flags) : BOOLEAN;
-      VAR
-	 type1, type2: CHAR;
-	 length: INTEGER;
-	 align: BOOLEAN;
-	 boundary: INTEGER;
-   BEGIN
-      IF cv.elementsleft > 0 THEN
-	 DEC(cv.elementsleft);
-
-	 (* Oberon type *)
-	 IF size1 > SIZE(SYS.BYTE) THEN
-	    Align(cv.offset1, SIZE(INTEGER));
-	 END;
-	 offset1 := cv.offset1; cv.offset1 := SYS.VAL (INTEGER, cv.offset1) + size1;
-	 size1 := cv.size1; size2 := cv.size2; flags := cv.flags;
-	 IF (size1 > 0) & (cv.elementsleft = 0) THEN
-	    Align(cv.offset1, SIZE(INTEGER));
-	 END;
-
-	 (* C type *)
-	 IF size2 > 1 THEN
-	    Align(cv.offset2, 2);
-	 END;
-	 offset2 := cv.offset2; cv.offset2 := SYS.VAL (INTEGER, cv.offset2) + SYS.VAL (INTEGER, size2);
-
-	 RETURN TRUE
-      END;
-      IF ScanConv(cv, type1, type2, length) THEN
-	 flags := {};
-	 (* Oberon type *)
-	 CASE type1 OF
-	 | "a":   size1 := SIZE(Address);  INCL(flags, unsigned);
-	 | "b":   size1 := SIZE(SYS.BYTE);     INCL(flags, unsigned);
-	 | "B":   size1 := SIZE(BOOLEAN);  INCL(flags, boolean);
-	 | "c":   size1 := SIZE(CHAR);     INCL(flags, unsigned);
-	 | "s":   size1 := SIZE(SHORTINT);
-	 | "i":   size1 := SIZE(INTEGER);
-	 | "l":   size1 := SIZE(LONGINT);
-	 | "S":   size1 := SIZE(SET);      INCL(flags, unsigned);
-	 | "-":   size1 := 0;
-	 ELSE     Error(cv, "bad Oberon type specifier"); RETURN FALSE
-	 END;
-	 IF size1 > 0 THEN
-	    IF length > 0 THEN
-	       Align(cv.offset1, SIZE(INTEGER));
-	    ELSIF size1 > SIZE(SYS.BYTE) THEN
-	       Align(cv.offset1, SIZE(INTEGER));
-	    END;
-	 END;
-	 offset1 := cv.offset1; cv.offset1 := SYS.VAL (INTEGER, cv.offset1) + size1;
-
-	 (* C type *)
-	 CASE type2 OF
-	 | "a":   size2 := 4; INCL(flags, unsigned); (* char*              *)
-	 | "c":   size2 := 1;                        (* /* signed */ char  *)
-	 | "C":   size2 := 1; INCL(flags, unsigned); (* unsigned char      *)
-	 | "s":   size2 := 2;                        (* short int          *)
-	 | "S":   size2 := 2; INCL(flags, unsigned); (* unsigned short int *)
-	 | "i":   size2 := 4;                        (* int                *)
-	 | "I":   size2 := 4; INCL(flags, unsigned); (* unsigned int       *)
-	 | "u":   size2 := 4; INCL(flags, unsigned); (* unsigned int       *)
-	 | "l":   size2 := 4;                        (* long int           *)
-	 | "L":   size2 := 4; INCL(flags, unsigned); (* long int           *)
-	 | "-":   size2 := 0;
-	 ELSE     Error(cv, "bad C type specifier"); RETURN FALSE
-	 END;
-	 IF size2 > 1 THEN
-	    Align(cv.offset2, size2);
-	 END;
-	 offset2 := cv.offset2; cv.offset2 := SYS.VAL (INTEGER, cv.offset2) + SYS.VAL (INTEGER, size2);
-
-	 cv.size1 := size1; cv.size2 := size2;
-	 IF length > 0 THEN
-	    cv.elementsleft := length - 1;
-	    cv.flags := flags;
-	 END;
-	 RETURN TRUE
-      ELSE
-	 RETURN FALSE
-      END;
-   END ReadConv;
-
-   PROCEDURE Convert(from, to: Address; ssize, dsize: Address; flags: Flags);
-      TYPE
-	 Bytes = ARRAY 8 OF CHAR;
-	 Pointer = POINTER TO Bytes;
-      VAR
-	 dest, source: Pointer;
-	 dindex, sindex: INTEGER;
-	 nonzero: BOOLEAN;
-	 fill : CHAR;
-   BEGIN
-      IF ssize > 0 THEN
-	 dest := SYS.VAL(Pointer, to);
-	 source := SYS.VAL(Pointer, from);
-	 dindex := 0; sindex := 0;
-	 IF boolean IN flags THEN
-	    nonzero := FALSE;
-	    WHILE ssize > 0 DO
-	       nonzero := nonzero OR (source[sindex] # 0X);
-	       INC(sindex); ssize := SYS.VAL (INTEGER, ssize) - 1;
-	    END;
-	    IF dsize > 0 THEN
-	       IF nonzero THEN
-		  dest[dindex] := 1X;
-	       ELSE
-		  dest[dindex] := 0X;
-	       END;
-	       dsize := dsize - 1; INC (dindex);
-	    END;
-	    WHILE dsize > 0 DO
-	       dest[dindex] := 0X;
-	       dsize := SYS.VAL (INTEGER, dsize) - 1; INC(dindex);
-	    END;
-	 ELSE
-	    WHILE (dsize > 0) & (ssize > 0) DO
-	       dest[dindex] := source[sindex];
-	       ssize := SYS.VAL (INTEGER, ssize) - 1;
-	       dsize := dsize - 1;
-	       INC(dindex); INC(sindex);
-	    END;
-	    IF dsize > 0 THEN
-	       (* sindex has been incremented at least once because
-	        * ssize and dsize were greater than 0, i.e. sindex-1
-		* is a valid inex. *)
-	       fill := 0X;
-	       IF ~(unsigned IN flags) & (source[sindex-1] >= 080X) THEN
-	          fill := 0FFX;
-	       END;
-	    END;
-	    WHILE dsize > 0 DO
-	       dest[dindex] := fill;
-	       dsize := SYS.VAL (INTEGER, dsize) - 1; INC(dindex);
-	    END;
-	 END;
-      END;
-   END Convert;
-
-   PROCEDURE ByAddrToC*(from, to: Address; format: ARRAY OF CHAR);
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO
-	 Convert(from + offset1, to + offset2, size1, size2, flags);
-      END;
-      Close(cv);
-   END ByAddrToC;
-
-   PROCEDURE ByAddrFromC*(from, to: Address; format: ARRAY OF CHAR);
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO
-	 Convert(from + offset2, to + offset1, size2, size1, flags);
-      END;
-      Close(cv);
-   END ByAddrFromC;
-
-   PROCEDURE CSize*(format: ARRAY OF CHAR) : Size;
-      (* returns the size of the C-structure described by `format' *)
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 size: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO END;
-      Close(cv);
-      size := offset2 + size2;
-      Align(size, 2);
-      RETURN size
-   END CSize;
-
-   PROCEDURE OberonSize*(format: ARRAY OF CHAR) : Size;
-      (* returns the size of the Oberon-structure described by `format' *)
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 size: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO END;
-      Close(cv);
-      size := offset1 + size1;
-      Align(size, SIZE(INTEGER));
-      RETURN size
-   END OberonSize;
-
-   PROCEDURE ToC*(VAR from, to: ARRAY OF SYS.BYTE; format: ARRAY OF CHAR);
-   BEGIN
-      IF OberonSize(format) > LEN(from) THEN
-	 SizeError("Oberon record is too small", format); RETURN
-      END;
-      IF CSize(format) > LEN(to) THEN
-	 SizeError("C structure is too small", format); RETURN
-      END;
-      ByAddrToC(SYS.ADR(from), SYS.ADR(to), format);
-   END ToC;
-
-   PROCEDURE FromC*(VAR from, to: ARRAY OF SYS.BYTE; format: ARRAY OF CHAR);
-   BEGIN
-      IF OberonSize(format) > LEN(to) THEN
-	 SizeError("Oberon record is too small", format); RETURN
-      END;
-      IF CSize(format) > LEN(from) THEN
-	 SizeError("C structure is too small", format); RETURN
-      END;
-      ByAddrFromC(SYS.ADR(from), SYS.ADR(to), format);
-   END FromC;
-
-   PROCEDURE Compile*(VAR fmt: Format; format: ARRAY OF CHAR);
-      (* translate format into an internal representation
-	 which is later referenced by fmt;
-	 ByFmtToC and ByFmtFromC are faster than ToC and FromC
-      *)
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-	 element: Format;
-	 head, tail: Format;
-   BEGIN
-      Open(cv, format);
-      head := NIL; tail := NIL;
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO
-	 NEW(element);
-	 element.offset1 := offset1;
-	 element.offset2 := offset2;
-	 element.size1 := size1;
-	 element.size2 := size2;
-	 element.flags := flags;
-	 element.next := NIL;
-	 IF tail # NIL THEN
-	    tail.next := element;
-	 ELSE
-	    head := element;
-	 END;
-	 tail := element;
-      END;
-      fmt := head;
-      Close(cv);
-   END Compile;
-
-   PROCEDURE ByFmtAndAddrToC*(from, to: Address; format: Format);
-      VAR
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      WHILE format # NIL DO
-	 Convert(from + format.offset1, to + format.offset2,
-		 format.size1, format.size2, format.flags);
-	 format := format.next;
-      END;
-   END ByFmtAndAddrToC;
-
-   PROCEDURE ByFmtAndAddrFromC*(from, to: Address; format: Format);
-      VAR
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      WHILE format # NIL DO
-	 Convert(from + format.offset2, to + format.offset1,
-		 format.size2, format.size1, format.flags);
-	 format := format.next;
-      END;
-   END ByFmtAndAddrFromC;
-
-   PROCEDURE ByFmtToC*(VAR from, to: ARRAY OF SYS.BYTE; format: Format);
-   BEGIN
-      ByFmtAndAddrToC(SYS.ADR(from), SYS.ADR(to), format);
-   END ByFmtToC;
-
-   PROCEDURE ByFmtFromC*(VAR from, to: ARRAY OF SYS.BYTE; format: Format);
-   BEGIN
-      ByFmtAndAddrFromC(SYS.ADR(from), SYS.ADR(to), format);
-   END ByFmtFromC;
-
-BEGIN
-   Events.Define(badformat);
-   Events.SetPriority(badformat, Priorities.liberrors);
-END ulmSysConversions.
diff --git a/src/lib/ulm/armv6j/ulmSysStat.Mod b/src/lib/ulm/armv6j/ulmSysStat.Mod
deleted file mode 100644
index c7f00f04..00000000
--- a/src/lib/ulm/armv6j/ulmSysStat.Mod
+++ /dev/null
@@ -1,201 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-1994 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: SysStat.om,v 1.3 2000/11/12 13:02:09 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: SysStat.om,v $
-   Revision 1.3  2000/11/12  13:02:09  borchert
-   door file type added
-
-   Revision 1.2  2000/11/12  12:48:07  borchert
-   - conversion adapted to Solaris 2.x
-   - Lstat added
-
-   Revision 1.1  1994/02/23  08:00:48  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 9/89
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmSysStat;
-
-   (* examine inode: stat(2) and fstat(2) *)
-
-   IMPORT RelatedEvents := ulmRelatedEvents, Sys := ulmSys, SYS := SYSTEM, uSYS := ulmSYSTEM, SysConversions := ulmSysConversions, SysErrors := ulmSysErrors,
-      SysTypes := ulmSysTypes;
-
-   CONST
-      (* file mode:
-         bit 0 = 1<<0   bit 31 = 1<<31
-	 
-                                user  group other
-         3       1  1111   11
-         1  ...  6  5432   109   876   543   210 
-	 +--------+------+-----+-----+-----+-----+
-	 | unused | type | sst | rwx | rwx | rwx |
-	 +--------+------+-----+-----+-----+-----+
-      *)
-
-      type* = {12..15};
-      prot* = {0..8};
-
-      (* file types; example: (stat.mode * type = dir) *)
-      reg* = {15};		(* regular *)
-      dir* = {14};		(* directory *)
-      chr* = {13};		(* character special *)
-      fifo* = {12};		(* fifo *)
-      blk* = {13..14};		(* block special *)
-      symlink* = {13, 15};	(* symbolic link *)
-      socket* = {14, 15};	(* socket *)
-
-      (* special *)
-      setuid* = 11;		(* set user id on execution *)
-      setgid* = 10;		(* set group id on execution *)
-      savetext* = 9;		(* save swapped text even after use *)
-
-      (* protection *)
-      uread* = 8;		(* read permission owner *)
-      uwrite* = 7;		(* write permission owner *)
-      uexec* = 6;		(* execute/search permission owner *)
-      gread* = 5;		(* read permission group *)
-      gwrite* = 4;		(* write permission group *)
-      gexec* = 3;		(* execute/search permission group *)
-      oread* = 2;		(* read permission other *)
-      owrite* = 1;		(* write permission other *)
-      oexec* = 0;		(* execute/search permission other *)
-
-      (* example for "r-xr-x---": (read + exec) * (owner + group) *)
-      owner* = {uread, uwrite, uexec};
-      group* = {gread, gwrite, gexec};
-      other* = {oread, owrite, oexec};
-      read* = {uread, gread, oread};
-      write* = {uwrite, gwrite, owrite};
-      exec* = {uexec, gexec, oexec};
-      rwx* = prot;
-
-   TYPE
-      StatRec* =				(* result of stat(2) and fstat(2) *)
-	 RECORD
-	    device*: SysTypes.Device;	(* ID of device containing
-					   a directory entry for this file *)
-	    inode*: SysTypes.Inode;	(* inode number *)
-	    mode*: SET;			(* file mode; see mknod(2) *)
-	    nlinks*: LONGINT;		(* number of links *)
-	    uid*: LONGINT;		(* user id of the file's owner *)
-	    gid*: LONGINT;		(* group id of the file's group *)
-	    rdev*: SysTypes.Device;	(* ID of device
-					   this entry is defined only for
-					   character special or block
-					   special files
-					*)
-	    size*: SysTypes.Offset;	(* file size in bytes *)
-	    blksize*: LONGINT;		(* preferred blocksize *)
-	    blocks*: LONGINT;		(* # of blocks allocated *)
-	    atime*: SysTypes.Time;	(* time of last access *)
-	    mtime*: SysTypes.Time;	(* time of last data modification *)
-	    ctime*: SysTypes.Time;	(* time of last file status change *)
-	 END;
-
-(* Linux kernel struct stat (2.2.17)
-      struct stat {
-	      unsigned short st_dev;
-	      unsigned short __pad1;
-	      unsigned long st_ino;
-	      unsigned short st_mode;
-	      unsigned short st_nlink;
-	      unsigned short st_uid;
-	      unsigned short st_gid;
-	      unsigned short st_rdev;
-	      unsigned short __pad2;
-	      unsigned long  st_size;
-	      unsigned long  st_blksize;
-	      unsigned long  st_blocks;
-	      unsigned long  st_atime;
-	      unsigned long  __unused1;
-	      unsigned long  st_mtime;
-	      unsigned long  __unused2;
-	      unsigned long  st_ctime;
-	      unsigned long  __unused3;
-	      unsigned long  __unused4;
-	      unsigned long  __unused5;
-      };
-*)
-
-   CONST
-      statbufsize = 88(*64*); (* see <sys/stat.h> *) (* sizeof struct stat gives us 144 on x86_64 and 88 on x86 *)
-   TYPE
-      UnixStatRec = ARRAY statbufsize OF SYS.BYTE;
-   CONST
-      statbufconv =
-      (*"is=dev/-s=pad1/ll=ino/Ss=mode/4*is=nlink+uid+gid+rdev/-s=pad2/ll=size/2*ll=blksize,blocks/il=atime/-l/il=mtime/-l/il=ctime/3*-l";*)
-      (*"ls=dev/-s=pad1/lL=ino/Ss=mode/4*is=nlink+uid+gid+rdev/-s=pad2/lL=size/2*lL=blksize,blocks/lL=atime/-l/lL=mtime/-l/lL=ctime/3*-l";*)
-      "ll=dev/-l=devx/-s=pad1/ll=ino/Sl=mode/ll=nlink/ll=uid/ll=gid/ll=rdev/-l=rdevx/-s=pad2/ll=size/2*ll=blksize,blocks/lL=atime/-l/lL=mtime/-l/lL=ctime/3*-l";
-   VAR
-      statbuffmt: SysConversions.Format;
-
-   PROCEDURE Stat*(path: ARRAY OF CHAR; VAR buf: StatRec;
-		  errors: RelatedEvents.Object) : BOOLEAN;
-      VAR
-	 d0, d1, d2: LONGINT;
-	 origbuf: UnixStatRec;
-   BEGIN
-      IF uSYS.UNIXCALL(Sys.newstat, d0, d1, SYS.ADR(path), SYS.ADR(origbuf), d2) THEN
-	 SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
-	 RETURN TRUE
-      ELSE
-	 SysErrors.Raise(errors, d0, Sys.newstat, path);
-	 RETURN FALSE
-      END;
-   END Stat;
-(*
-   PROCEDURE Lstat*(path: ARRAY OF CHAR; VAR buf: StatRec;
-		   errors: RelatedEvents.Object) : BOOLEAN;
-      VAR
-	 d0, d1: INTEGER;
-	 origbuf: UnixStatRec;
-   BEGIN
-      IF SYS.UNIXCALL(Sys.newlstat, d0, d1, SYS.ADR(path), SYS.ADR(origbuf)) THEN
-	 SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
-	 RETURN TRUE
-      ELSE
-	 SysErrors.Raise(errors, d0, Sys.newlstat, path);
-	 RETURN FALSE
-      END;
-   END Lstat;
-*)
-   PROCEDURE Fstat*(fd: SysTypes.File; VAR buf: StatRec;
-		   errors: RelatedEvents.Object) : BOOLEAN;
-      VAR
-	 d0, d1, d2: LONGINT;
-	 origbuf: UnixStatRec;
-   BEGIN
-      IF uSYS.UNIXCALL(Sys.newfstat, d0, d1, fd, SYS.ADR(origbuf), d2) THEN
-	 SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
-	 RETURN TRUE
-      ELSE
-	 SysErrors.Raise(errors, d0, Sys.newfstat, "");
-	 RETURN FALSE
-      END;
-   END Fstat;
-
-BEGIN
-   SysConversions.Compile(statbuffmt, statbufconv);
-END ulmSysStat.
diff --git a/src/lib/ulm/armv6j/ulmSysTypes.Mod b/src/lib/ulm/armv6j/ulmSysTypes.Mod
deleted file mode 100644
index 174140e7..00000000
--- a/src/lib/ulm/armv6j/ulmSysTypes.Mod
+++ /dev/null
@@ -1,70 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-1994 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: SysTypes.om,v 1.1 1994/02/23 08:01:38 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: SysTypes.om,v $
-   Revision 1.1  1994/02/23  08:01:38  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 9/89
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmSysTypes;
-
-   IMPORT Types := ulmTypes;
-
-   TYPE
-      Address* = Types.Address;
-      UntracedAddress* = Types.UntracedAddress;
-      Count* = Types.Count;
-      Size* = Types.Size;
-      Byte* = Types.Byte;
-
-      File* = (*INTEGER*)LONGINT; (* in ulm's system both INTEGER and LONGINT are 4 bytes long *)
-      Offset* = LONGINT;
-      Device* = LONGINT;
-      Inode* = LONGINT;
-      Time* = LONGINT;
-
-      Word* = INTEGER; (* must have the size of C's int-type *)
-
-   (* Note: linux supports wait4 but not waitid, i.e. these
-    * constants aren't needed. *)
-   (* 
-   CONST
-      (* possible values of the idtype parameter (4 bytes),
-	 see <sys/procset.h>
-      *)
-      idPid = 0; (* a process identifier *)
-      idPpid = 1; (* a parent process identifier *)
-      idPgid = 2; (* a process group (job control group) identifier *)
-      idSid = 3; (* a session identifier *)
-      idCid = 4; (* a scheduling class identifier *)
-      idUid = 5; (* a user identifier *)
-      idGid = 6; (* a group identifier *)
-      idAll = 7; (* all processes *)
-      idLwpid = 8; (* an LWP identifier *)
-   TYPE
-      IdType = INTEGER; (* idPid .. idLwpid *)
-   *)
-
-END ulmSysTypes.
diff --git a/src/lib/ulm/armv6j/ulmTypes.Mod b/src/lib/ulm/armv6j/ulmTypes.Mod
deleted file mode 100644
index fe2d6eca..00000000
--- a/src/lib/ulm/armv6j/ulmTypes.Mod
+++ /dev/null
@@ -1,133 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-2000 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: Types.om,v 1.5 2000/12/13 10:03:00 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: Types.om,v $
-   Revision 1.5  2000/12/13  10:03:00  borchert
-   SetInt type used in msb constant
-
-   Revision 1.4  2000/12/13  09:51:57  borchert
-   constants and types for the relationship of INTEGER and SET added
-
-   Revision 1.3  1998/09/25 15:23:09  borchert
-   Real32..Real128 added
-
-   Revision 1.2  1994/07/01  11:08:04  borchert
-   IntAddress, Int8/16/32, ToInt8/16/32 and bit/little endian stuff added
-
-   Revision 1.1  1994/02/22  20:12:14  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 9/93
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmTypes;
-
-   (* compiler-dependent type definitions;
-      this version works for Ulm's Oberon Compilers on
-      following architectures: m68k and sparc
-   *)
-
-   IMPORT SYS := SYSTEM;
-
-   TYPE
-      Address* = LONGINT (*SYS.ADDRESS*);
-      (* ulm compiler can accept 
-         VAR p : SYSTEM.ADDRESS; // SYSTEM.PTR in ETH and V4 versions
-         ...
-         p := SYSTEM.ADR(something);
-         and this is how it is used in ulm oberon system library,
-         while SYSTEM.ADR returns LONGINT in ETH and V4 versions.
-         Thus I leave it as LONGINT for now, before coming up with better solution -- noch *)
-      UntracedAddress* = POINTER[1] TO UntracedAddressDesc; (*SYS.UNTRACEDADDRESS;*)
-      UntracedAddressDesc* = RECORD[1] END;
-      Count* = LONGINT;
-      Size* = Count;
-      Byte* = SYS.BYTE;
-      IntAddress* = LONGINT;
-      Int8* = SHORTINT;
-      Int16* = INTEGER; 
-      Int32* = LONGINT;
-      Real32* = REAL;
-      Real64* = LONGREAL;
-
-   CONST
-      bigEndian* = 0;    (* SPARC, M68K etc *)
-      littleEndian* = 1; (* Intel 80x86, VAX etc *)
-      byteorder* = littleEndian; (* machine-dependent constant *)
-   TYPE
-      ByteOrder* = SHORTINT; (* bigEndian or littleEndian *)
-
-   (* following constants and type definitions try to make
-      conversions from INTEGER to SET and vice versa more portable
-      to allow for bit operations on INTEGER values
-   *)
-   TYPE
-      SetInt* = LONGINT; (* INTEGER type that corresponds to SET *)
-   VAR msb* : SET;
-   msbIsMax*, msbIs0*: SHORTINT;
-   msbindex*, lsbindex*, nofbits*: LONGINT;
-
-   PROCEDURE ToInt8*(int: LONGINT) : Int8;
-   BEGIN
-      RETURN SHORT(SHORT(int))
-   END ToInt8;
-
-   PROCEDURE ToInt16*(int: LONGINT) : Int16;
-   BEGIN
-      RETURN SYS.VAL(Int16, int)
-   END ToInt16;
-
-   PROCEDURE ToInt32*(int: LONGINT) : Int32;
-   BEGIN
-      RETURN int
-   END ToInt32;
-
-   PROCEDURE ToReal32*(real: LONGREAL) : Real32;
-   BEGIN
-      RETURN SHORT(real)
-   END ToReal32;
-
-   PROCEDURE ToReal64*(real: LONGREAL) : Real64;
-   BEGIN
-      RETURN real
-   END ToReal64;
-
-BEGIN
-      msb := SYS.VAL(SET, MIN(SetInt));
-	 (* most significant bit, converted to a SET *)
-      (* we expect msbIsMax XOR msbIs0 to be 1;
-	 this is checked for by an assertion
-      *)
-      msbIsMax := SYS.VAL(SHORTINT, (msb = {MAX(SET)}));
-	 (* is 1, if msb equals {MAX(SET)} *)
-      msbIs0 := SYS.VAL(SHORTINT, (msb = {0}));
-	 (* is 0, if msb equals {0} *)
-      msbindex := msbIsMax * MAX(SET);
-	 (* set element that corresponds to the most-significant-bit *)
-      lsbindex := MAX(SET) - msbindex;
-	 (* set element that corresponds to the lowest-significant-bit *)
-      nofbits := MAX(SET) + 1;
-	 (* number of elements in SETs *)
-
-   ASSERT((msbIs0 = 1) & (msbIsMax = 0) OR (msbIs0 = 0) & (msbIsMax = 1));
-END ulmTypes.
diff --git a/src/lib/ulm/ulmSYSTEM.Mod b/src/lib/ulm/armv6j_hardfp/ulmSYSTEM.Mod
similarity index 100%
rename from src/lib/ulm/ulmSYSTEM.Mod
rename to src/lib/ulm/armv6j_hardfp/ulmSYSTEM.Mod
diff --git a/src/lib/ulm/armv7a_hardfp/ulmSysConversions.Mod b/src/lib/ulm/armv7a_hardfp/ulmSysConversions.Mod
deleted file mode 100644
index f8ea3fbb..00000000
--- a/src/lib/ulm/armv7a_hardfp/ulmSysConversions.Mod
+++ /dev/null
@@ -1,574 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-1994 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: SysConversi.om,v 1.2 1997/07/30 09:38:16 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: SysConversi.om,v $
-   Revision 1.2  1997/07/30  09:38:16  borchert
-   bug in ReadConv fixed: cv.flags was used but not set for
-                          counts > 1
-
-   Revision 1.1  1994/02/23  07:58:28  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 8/90
-   adapted to linux cae 02/01
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmSysConversions;
-
-   (* convert Oberon records to/from C structures *)
-
-   IMPORT Events := ulmEvents, Objects := ulmObjects, Priorities := ulmPriorities, Streams := ulmStreams, Strings := ulmStrings,
-      SYS := SYSTEM, SysTypes := ulmSysTypes, Texts := ulmTexts;
-
-   TYPE
-      Address* = SysTypes.Address;
-      Size* = Address;
-
-   (* format:
-
-      Format = Conversion { "/" Conversion } .
-      Conversion = [ Factors ] ConvChars [ Comment ] .
-      Factors = Array | Factor | Array Factor | Factor Array .
-      Array = Integer ":" .
-      Factor = Integer "*" .
-      ConvChars = OberonType CType | Skip CType | OberonType Skip .
-      OberonType = "a" | "b" | "c" | "s" | "i" | "l" | "S" .
-      CType = "a" | "c" | "s" | "i" | "l" .
-      Integer = Digit { Digit } .
-      Digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" .
-      Skip = "-" .
-      Comment = "=" { AnyChar } .
-      AnyChar = (* all characters except "/" *) .
-
-      Oberon data types:
-
-      a: Address
-      b: SYS.BYTE
-      B: BOOLEAN
-      c: CHAR
-      s: SHORTINT
-      i: INTEGER
-      l: LONGINT
-      S: SET
-
-      C data types:
-
-      a: char *
-      c: /* signed */ char
-      C: unsigned char
-      s: short int
-      S: unsigned short int
-      i: int
-      I: unsigned int
-      u: unsigned int
-      l: long int
-      L: unsigned long int
-
-      example:
-
-      conversion from
-
-	 Rec =
-	    RECORD
-	       a, b: INTEGER;
-	       c: CHAR;
-	       s: SET;
-	       f: ARRAY 3 OF INTEGER;
-	    END;
-
-      to
-
-	 struct rec {
-	    short a, b;
-	    char c;
-	    int xx;	/* to be skipped on conversion */
-	    int s;
-	    int f[3];
-	 };
-
-      or vice versa:
-
-	 "2*is=a,b/cc=c/-i=xx/Si=s/3:ii=f"
-
-      The comments allow to give the field names.
-   *)
-
-   CONST
-      (* conversion flags *)
-      unsigned = 0;		(* suppress sign extension *)
-      boolean = 1;		(* convert anything # 0 to 1 *)
-   TYPE
-      Flags = SET;
-      Event* = POINTER TO EventRec;
-      EventRec* =
-	 RECORD
-	    (Events.EventRec)
-	    format*: Events.Message;
-	 END;
-      ConvStream = POINTER TO ConvStreamRec;
-      ConvStreamRec =
-	 RECORD
-	    fmt: Texts.Text;
-	    char: CHAR;
-	    eof: BOOLEAN;
-	    (* 1: Oberon type
-	       2: C type
-	    *)
-	    type1, type2: CHAR; length: INTEGER; left: INTEGER;
-	    offset1, offset2: Address;
-	    size1, size2: Address; elementsleft: INTEGER; flags: Flags;
-	 END;
-
-      Format* = POINTER TO FormatRec;
-      FormatRec* =
-	 RECORD
-	    (Objects.ObjectRec)
-	    offset1, offset2: Address;
-	    size1, size2: Address;
-	    flags: Flags;
-	    next: Format;
-	 END;
-   VAR
-      badformat*: Events.EventType;
-
-   PROCEDURE Error(cv: ConvStream; msg: ARRAY OF CHAR);
-      VAR
-	 event: Event;
-   BEGIN
-      NEW(event);
-      event.type := badformat;
-      event.message := "SysConversions: ";
-      Strings.Concatenate(event.message, msg);
-      Strings.Read(event.format, cv.fmt);
-      Events.Raise(event);
-      cv.eof := TRUE;
-      cv.char := 0X;
-      cv.left := 0;
-      cv.elementsleft := 0;
-   END Error;
-
-   PROCEDURE SizeError(msg, format: ARRAY OF CHAR);
-      VAR
-	 event: Event;
-   BEGIN
-      NEW(event);
-      event.type := badformat;
-      event.message := "SysConversions: ";
-      Strings.Concatenate(event.message, msg);
-      COPY(format, event.format);
-      Events.Raise(event);
-   END SizeError;
-
-   PROCEDURE NextCh(cv: ConvStream);
-   BEGIN
-      cv.eof := cv.eof OR ~Streams.ReadByte(cv.fmt, cv.char) OR (cv.char = 0X);
-      IF cv.eof THEN
-	 cv.char := 0X;
-      END;
-   END NextCh;
-
-   PROCEDURE IsDigit(ch: CHAR) : BOOLEAN;
-   BEGIN
-      RETURN (ch >= "0") & (ch <= "9")
-   END IsDigit;
-
-   PROCEDURE ReadInt(cv: ConvStream; VAR i: INTEGER);
-   BEGIN
-      i := 0;
-      REPEAT
-	 i := 10 * i + ORD(cv.char) - ORD("0");
-	 NextCh(cv);
-      UNTIL ~IsDigit(cv.char);
-   END ReadInt;
-
-   PROCEDURE Open(VAR cv: ConvStream; format: ARRAY OF CHAR);
-   BEGIN
-      NEW(cv);
-      Texts.Open(SYS.VAL(Streams.Stream, cv.fmt));
-      Strings.Write(cv.fmt, format);
-      cv.left := 0; cv.elementsleft := 0;
-      cv.offset1 := 0; cv.offset2 := 0;
-      cv.eof := FALSE;
-      NextCh(cv);
-   END Open;
-
-   PROCEDURE Close(VAR cv: ConvStream);
-   BEGIN
-      IF ~Streams.Close(cv.fmt) THEN END;
-   END Close;
-
-   PROCEDURE ScanConv(cv: ConvStream;
-		      VAR type1, type2: CHAR;
-		      VAR length: INTEGER) : BOOLEAN;
-      VAR
-	 i: INTEGER;
-	 factor: INTEGER;
-   BEGIN
-      IF cv.left > 0 THEN
-	 type1 := cv.type1;
-	 type2 := cv.type2;
-	 length := cv.length;
-	 DEC(cv.left);
-	 RETURN TRUE
-      END;
-      IF cv.char = "/" THEN
-	 NextCh(cv);
-      END;
-      IF cv.eof THEN
-	 RETURN FALSE
-      END;
-      factor := 0; length := 0;
-      WHILE IsDigit(cv.char) DO
-	 ReadInt(cv, i);
-	 IF i <= 0 THEN
-	    Error(cv, "integer must be positive"); RETURN FALSE
-	 END;
-	 IF cv.char = ":" THEN
-	    IF length # 0 THEN
-	       Error(cv, "multiple length specification"); RETURN FALSE
-	    END;
-	    length := i;
-	    NextCh(cv);
-	 ELSIF cv.char = "*" THEN
-	    IF factor # 0 THEN
-	       Error(cv, "multiple factor specification"); RETURN FALSE
-	    END;
-	    factor := i; cv.left := factor - 1;
-	    NextCh(cv);
-	 ELSE
-	    Error(cv, "factor or length expected"); RETURN FALSE
-	 END;
-      END;
-      type1 := cv.char; NextCh(cv);
-      type2 := cv.char; NextCh(cv);
-      IF cv.left > 0 THEN
-	 cv.type1 := type1; cv.type2 := type2; cv.length := length;
-      END;
-      IF cv.char = "=" THEN (* comment *)
-	 REPEAT
-	    NextCh(cv);
-	 UNTIL cv.eof OR (cv.char = "/");
-      END;
-      RETURN TRUE
-   END ScanConv;
-
-   PROCEDURE Align(VAR offset: Address; boundary: Address);
-   BEGIN
-      IF SYS.VAL (INTEGER, offset) MOD SYS.VAL (INTEGER, boundary) # 0 THEN
-	 offset := SYS.VAL (INTEGER, offset) + (SYS.VAL (INTEGER, boundary) - SYS.VAL (INTEGER, offset) MOD SYS.VAL (INTEGER, boundary));
-      END;
-   END Align;
-
-   PROCEDURE ReadConv(cv: ConvStream;
-		      VAR offset1, offset2: Address;
-		      VAR size1, size2: Address;
-		      VAR flags: Flags) : BOOLEAN;
-      VAR
-	 type1, type2: CHAR;
-	 length: INTEGER;
-	 align: BOOLEAN;
-	 boundary: INTEGER;
-   BEGIN
-      IF cv.elementsleft > 0 THEN
-	 DEC(cv.elementsleft);
-
-	 (* Oberon type *)
-	 IF size1 > SIZE(SYS.BYTE) THEN
-	    Align(cv.offset1, SIZE(INTEGER));
-	 END;
-	 offset1 := cv.offset1; cv.offset1 := SYS.VAL (INTEGER, cv.offset1) + size1;
-	 size1 := cv.size1; size2 := cv.size2; flags := cv.flags;
-	 IF (size1 > 0) & (cv.elementsleft = 0) THEN
-	    Align(cv.offset1, SIZE(INTEGER));
-	 END;
-
-	 (* C type *)
-	 IF size2 > 1 THEN
-	    Align(cv.offset2, 2);
-	 END;
-	 offset2 := cv.offset2; cv.offset2 := SYS.VAL (INTEGER, cv.offset2) + SYS.VAL (INTEGER, size2);
-
-	 RETURN TRUE
-      END;
-      IF ScanConv(cv, type1, type2, length) THEN
-	 flags := {};
-	 (* Oberon type *)
-	 CASE type1 OF
-	 | "a":   size1 := SIZE(Address);  INCL(flags, unsigned);
-	 | "b":   size1 := SIZE(SYS.BYTE);     INCL(flags, unsigned);
-	 | "B":   size1 := SIZE(BOOLEAN);  INCL(flags, boolean);
-	 | "c":   size1 := SIZE(CHAR);     INCL(flags, unsigned);
-	 | "s":   size1 := SIZE(SHORTINT);
-	 | "i":   size1 := SIZE(INTEGER);
-	 | "l":   size1 := SIZE(LONGINT);
-	 | "S":   size1 := SIZE(SET);      INCL(flags, unsigned);
-	 | "-":   size1 := 0;
-	 ELSE     Error(cv, "bad Oberon type specifier"); RETURN FALSE
-	 END;
-	 IF size1 > 0 THEN
-	    IF length > 0 THEN
-	       Align(cv.offset1, SIZE(INTEGER));
-	    ELSIF size1 > SIZE(SYS.BYTE) THEN
-	       Align(cv.offset1, SIZE(INTEGER));
-	    END;
-	 END;
-	 offset1 := cv.offset1; cv.offset1 := SYS.VAL (INTEGER, cv.offset1) + size1;
-
-	 (* C type *)
-	 CASE type2 OF
-	 | "a":   size2 := 4; INCL(flags, unsigned); (* char*              *)
-	 | "c":   size2 := 1;                        (* /* signed */ char  *)
-	 | "C":   size2 := 1; INCL(flags, unsigned); (* unsigned char      *)
-	 | "s":   size2 := 2;                        (* short int          *)
-	 | "S":   size2 := 2; INCL(flags, unsigned); (* unsigned short int *)
-	 | "i":   size2 := 4;                        (* int                *)
-	 | "I":   size2 := 4; INCL(flags, unsigned); (* unsigned int       *)
-	 | "u":   size2 := 4; INCL(flags, unsigned); (* unsigned int       *)
-	 | "l":   size2 := 4;                        (* long int           *)
-	 | "L":   size2 := 4; INCL(flags, unsigned); (* long int           *)
-	 | "-":   size2 := 0;
-	 ELSE     Error(cv, "bad C type specifier"); RETURN FALSE
-	 END;
-	 IF size2 > 1 THEN
-	    Align(cv.offset2, size2);
-	 END;
-	 offset2 := cv.offset2; cv.offset2 := SYS.VAL (INTEGER, cv.offset2) + SYS.VAL (INTEGER, size2);
-
-	 cv.size1 := size1; cv.size2 := size2;
-	 IF length > 0 THEN
-	    cv.elementsleft := length - 1;
-	    cv.flags := flags;
-	 END;
-	 RETURN TRUE
-      ELSE
-	 RETURN FALSE
-      END;
-   END ReadConv;
-
-   PROCEDURE Convert(from, to: Address; ssize, dsize: Address; flags: Flags);
-      TYPE
-	 Bytes = ARRAY 8 OF CHAR;
-	 Pointer = POINTER TO Bytes;
-      VAR
-	 dest, source: Pointer;
-	 dindex, sindex: INTEGER;
-	 nonzero: BOOLEAN;
-	 fill : CHAR;
-   BEGIN
-      IF ssize > 0 THEN
-	 dest := SYS.VAL(Pointer, to);
-	 source := SYS.VAL(Pointer, from);
-	 dindex := 0; sindex := 0;
-	 IF boolean IN flags THEN
-	    nonzero := FALSE;
-	    WHILE ssize > 0 DO
-	       nonzero := nonzero OR (source[sindex] # 0X);
-	       INC(sindex); ssize := SYS.VAL (INTEGER, ssize) - 1;
-	    END;
-	    IF dsize > 0 THEN
-	       IF nonzero THEN
-		  dest[dindex] := 1X;
-	       ELSE
-		  dest[dindex] := 0X;
-	       END;
-	       dsize := dsize - 1; INC (dindex);
-	    END;
-	    WHILE dsize > 0 DO
-	       dest[dindex] := 0X;
-	       dsize := SYS.VAL (INTEGER, dsize) - 1; INC(dindex);
-	    END;
-	 ELSE
-	    WHILE (dsize > 0) & (ssize > 0) DO
-	       dest[dindex] := source[sindex];
-	       ssize := SYS.VAL (INTEGER, ssize) - 1;
-	       dsize := dsize - 1;
-	       INC(dindex); INC(sindex);
-	    END;
-	    IF dsize > 0 THEN
-	       (* sindex has been incremented at least once because
-	        * ssize and dsize were greater than 0, i.e. sindex-1
-		* is a valid inex. *)
-	       fill := 0X;
-	       IF ~(unsigned IN flags) & (source[sindex-1] >= 080X) THEN
-	          fill := 0FFX;
-	       END;
-	    END;
-	    WHILE dsize > 0 DO
-	       dest[dindex] := fill;
-	       dsize := SYS.VAL (INTEGER, dsize) - 1; INC(dindex);
-	    END;
-	 END;
-      END;
-   END Convert;
-
-   PROCEDURE ByAddrToC*(from, to: Address; format: ARRAY OF CHAR);
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO
-	 Convert(from + offset1, to + offset2, size1, size2, flags);
-      END;
-      Close(cv);
-   END ByAddrToC;
-
-   PROCEDURE ByAddrFromC*(from, to: Address; format: ARRAY OF CHAR);
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO
-	 Convert(from + offset2, to + offset1, size2, size1, flags);
-      END;
-      Close(cv);
-   END ByAddrFromC;
-
-   PROCEDURE CSize*(format: ARRAY OF CHAR) : Size;
-      (* returns the size of the C-structure described by `format' *)
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 size: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO END;
-      Close(cv);
-      size := offset2 + size2;
-      Align(size, 2);
-      RETURN size
-   END CSize;
-
-   PROCEDURE OberonSize*(format: ARRAY OF CHAR) : Size;
-      (* returns the size of the Oberon-structure described by `format' *)
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 size: Address;
-	 flags: Flags;
-   BEGIN
-      Open(cv, format);
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO END;
-      Close(cv);
-      size := offset1 + size1;
-      Align(size, SIZE(INTEGER));
-      RETURN size
-   END OberonSize;
-
-   PROCEDURE ToC*(VAR from, to: ARRAY OF SYS.BYTE; format: ARRAY OF CHAR);
-   BEGIN
-      IF OberonSize(format) > LEN(from) THEN
-	 SizeError("Oberon record is too small", format); RETURN
-      END;
-      IF CSize(format) > LEN(to) THEN
-	 SizeError("C structure is too small", format); RETURN
-      END;
-      ByAddrToC(SYS.ADR(from), SYS.ADR(to), format);
-   END ToC;
-
-   PROCEDURE FromC*(VAR from, to: ARRAY OF SYS.BYTE; format: ARRAY OF CHAR);
-   BEGIN
-      IF OberonSize(format) > LEN(to) THEN
-	 SizeError("Oberon record is too small", format); RETURN
-      END;
-      IF CSize(format) > LEN(from) THEN
-	 SizeError("C structure is too small", format); RETURN
-      END;
-      ByAddrFromC(SYS.ADR(from), SYS.ADR(to), format);
-   END FromC;
-
-   PROCEDURE Compile*(VAR fmt: Format; format: ARRAY OF CHAR);
-      (* translate format into an internal representation
-	 which is later referenced by fmt;
-	 ByFmtToC and ByFmtFromC are faster than ToC and FromC
-      *)
-      VAR
-	 cv: ConvStream;
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-	 element: Format;
-	 head, tail: Format;
-   BEGIN
-      Open(cv, format);
-      head := NIL; tail := NIL;
-      WHILE ReadConv(cv, offset1, offset2, size1, size2, flags) DO
-	 NEW(element);
-	 element.offset1 := offset1;
-	 element.offset2 := offset2;
-	 element.size1 := size1;
-	 element.size2 := size2;
-	 element.flags := flags;
-	 element.next := NIL;
-	 IF tail # NIL THEN
-	    tail.next := element;
-	 ELSE
-	    head := element;
-	 END;
-	 tail := element;
-      END;
-      fmt := head;
-      Close(cv);
-   END Compile;
-
-   PROCEDURE ByFmtAndAddrToC*(from, to: Address; format: Format);
-      VAR
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      WHILE format # NIL DO
-	 Convert(from + format.offset1, to + format.offset2,
-		 format.size1, format.size2, format.flags);
-	 format := format.next;
-      END;
-   END ByFmtAndAddrToC;
-
-   PROCEDURE ByFmtAndAddrFromC*(from, to: Address; format: Format);
-      VAR
-	 offset1, offset2, size1, size2: Address;
-	 flags: Flags;
-   BEGIN
-      WHILE format # NIL DO
-	 Convert(from + format.offset2, to + format.offset1,
-		 format.size2, format.size1, format.flags);
-	 format := format.next;
-      END;
-   END ByFmtAndAddrFromC;
-
-   PROCEDURE ByFmtToC*(VAR from, to: ARRAY OF SYS.BYTE; format: Format);
-   BEGIN
-      ByFmtAndAddrToC(SYS.ADR(from), SYS.ADR(to), format);
-   END ByFmtToC;
-
-   PROCEDURE ByFmtFromC*(VAR from, to: ARRAY OF SYS.BYTE; format: Format);
-   BEGIN
-      ByFmtAndAddrFromC(SYS.ADR(from), SYS.ADR(to), format);
-   END ByFmtFromC;
-
-BEGIN
-   Events.Define(badformat);
-   Events.SetPriority(badformat, Priorities.liberrors);
-END ulmSysConversions.
diff --git a/src/lib/ulm/armv7a_hardfp/ulmSysStat.Mod b/src/lib/ulm/armv7a_hardfp/ulmSysStat.Mod
deleted file mode 100644
index c7f00f04..00000000
--- a/src/lib/ulm/armv7a_hardfp/ulmSysStat.Mod
+++ /dev/null
@@ -1,201 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-1994 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: SysStat.om,v 1.3 2000/11/12 13:02:09 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: SysStat.om,v $
-   Revision 1.3  2000/11/12  13:02:09  borchert
-   door file type added
-
-   Revision 1.2  2000/11/12  12:48:07  borchert
-   - conversion adapted to Solaris 2.x
-   - Lstat added
-
-   Revision 1.1  1994/02/23  08:00:48  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 9/89
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmSysStat;
-
-   (* examine inode: stat(2) and fstat(2) *)
-
-   IMPORT RelatedEvents := ulmRelatedEvents, Sys := ulmSys, SYS := SYSTEM, uSYS := ulmSYSTEM, SysConversions := ulmSysConversions, SysErrors := ulmSysErrors,
-      SysTypes := ulmSysTypes;
-
-   CONST
-      (* file mode:
-         bit 0 = 1<<0   bit 31 = 1<<31
-	 
-                                user  group other
-         3       1  1111   11
-         1  ...  6  5432   109   876   543   210 
-	 +--------+------+-----+-----+-----+-----+
-	 | unused | type | sst | rwx | rwx | rwx |
-	 +--------+------+-----+-----+-----+-----+
-      *)
-
-      type* = {12..15};
-      prot* = {0..8};
-
-      (* file types; example: (stat.mode * type = dir) *)
-      reg* = {15};		(* regular *)
-      dir* = {14};		(* directory *)
-      chr* = {13};		(* character special *)
-      fifo* = {12};		(* fifo *)
-      blk* = {13..14};		(* block special *)
-      symlink* = {13, 15};	(* symbolic link *)
-      socket* = {14, 15};	(* socket *)
-
-      (* special *)
-      setuid* = 11;		(* set user id on execution *)
-      setgid* = 10;		(* set group id on execution *)
-      savetext* = 9;		(* save swapped text even after use *)
-
-      (* protection *)
-      uread* = 8;		(* read permission owner *)
-      uwrite* = 7;		(* write permission owner *)
-      uexec* = 6;		(* execute/search permission owner *)
-      gread* = 5;		(* read permission group *)
-      gwrite* = 4;		(* write permission group *)
-      gexec* = 3;		(* execute/search permission group *)
-      oread* = 2;		(* read permission other *)
-      owrite* = 1;		(* write permission other *)
-      oexec* = 0;		(* execute/search permission other *)
-
-      (* example for "r-xr-x---": (read + exec) * (owner + group) *)
-      owner* = {uread, uwrite, uexec};
-      group* = {gread, gwrite, gexec};
-      other* = {oread, owrite, oexec};
-      read* = {uread, gread, oread};
-      write* = {uwrite, gwrite, owrite};
-      exec* = {uexec, gexec, oexec};
-      rwx* = prot;
-
-   TYPE
-      StatRec* =				(* result of stat(2) and fstat(2) *)
-	 RECORD
-	    device*: SysTypes.Device;	(* ID of device containing
-					   a directory entry for this file *)
-	    inode*: SysTypes.Inode;	(* inode number *)
-	    mode*: SET;			(* file mode; see mknod(2) *)
-	    nlinks*: LONGINT;		(* number of links *)
-	    uid*: LONGINT;		(* user id of the file's owner *)
-	    gid*: LONGINT;		(* group id of the file's group *)
-	    rdev*: SysTypes.Device;	(* ID of device
-					   this entry is defined only for
-					   character special or block
-					   special files
-					*)
-	    size*: SysTypes.Offset;	(* file size in bytes *)
-	    blksize*: LONGINT;		(* preferred blocksize *)
-	    blocks*: LONGINT;		(* # of blocks allocated *)
-	    atime*: SysTypes.Time;	(* time of last access *)
-	    mtime*: SysTypes.Time;	(* time of last data modification *)
-	    ctime*: SysTypes.Time;	(* time of last file status change *)
-	 END;
-
-(* Linux kernel struct stat (2.2.17)
-      struct stat {
-	      unsigned short st_dev;
-	      unsigned short __pad1;
-	      unsigned long st_ino;
-	      unsigned short st_mode;
-	      unsigned short st_nlink;
-	      unsigned short st_uid;
-	      unsigned short st_gid;
-	      unsigned short st_rdev;
-	      unsigned short __pad2;
-	      unsigned long  st_size;
-	      unsigned long  st_blksize;
-	      unsigned long  st_blocks;
-	      unsigned long  st_atime;
-	      unsigned long  __unused1;
-	      unsigned long  st_mtime;
-	      unsigned long  __unused2;
-	      unsigned long  st_ctime;
-	      unsigned long  __unused3;
-	      unsigned long  __unused4;
-	      unsigned long  __unused5;
-      };
-*)
-
-   CONST
-      statbufsize = 88(*64*); (* see <sys/stat.h> *) (* sizeof struct stat gives us 144 on x86_64 and 88 on x86 *)
-   TYPE
-      UnixStatRec = ARRAY statbufsize OF SYS.BYTE;
-   CONST
-      statbufconv =
-      (*"is=dev/-s=pad1/ll=ino/Ss=mode/4*is=nlink+uid+gid+rdev/-s=pad2/ll=size/2*ll=blksize,blocks/il=atime/-l/il=mtime/-l/il=ctime/3*-l";*)
-      (*"ls=dev/-s=pad1/lL=ino/Ss=mode/4*is=nlink+uid+gid+rdev/-s=pad2/lL=size/2*lL=blksize,blocks/lL=atime/-l/lL=mtime/-l/lL=ctime/3*-l";*)
-      "ll=dev/-l=devx/-s=pad1/ll=ino/Sl=mode/ll=nlink/ll=uid/ll=gid/ll=rdev/-l=rdevx/-s=pad2/ll=size/2*ll=blksize,blocks/lL=atime/-l/lL=mtime/-l/lL=ctime/3*-l";
-   VAR
-      statbuffmt: SysConversions.Format;
-
-   PROCEDURE Stat*(path: ARRAY OF CHAR; VAR buf: StatRec;
-		  errors: RelatedEvents.Object) : BOOLEAN;
-      VAR
-	 d0, d1, d2: LONGINT;
-	 origbuf: UnixStatRec;
-   BEGIN
-      IF uSYS.UNIXCALL(Sys.newstat, d0, d1, SYS.ADR(path), SYS.ADR(origbuf), d2) THEN
-	 SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
-	 RETURN TRUE
-      ELSE
-	 SysErrors.Raise(errors, d0, Sys.newstat, path);
-	 RETURN FALSE
-      END;
-   END Stat;
-(*
-   PROCEDURE Lstat*(path: ARRAY OF CHAR; VAR buf: StatRec;
-		   errors: RelatedEvents.Object) : BOOLEAN;
-      VAR
-	 d0, d1: INTEGER;
-	 origbuf: UnixStatRec;
-   BEGIN
-      IF SYS.UNIXCALL(Sys.newlstat, d0, d1, SYS.ADR(path), SYS.ADR(origbuf)) THEN
-	 SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
-	 RETURN TRUE
-      ELSE
-	 SysErrors.Raise(errors, d0, Sys.newlstat, path);
-	 RETURN FALSE
-      END;
-   END Lstat;
-*)
-   PROCEDURE Fstat*(fd: SysTypes.File; VAR buf: StatRec;
-		   errors: RelatedEvents.Object) : BOOLEAN;
-      VAR
-	 d0, d1, d2: LONGINT;
-	 origbuf: UnixStatRec;
-   BEGIN
-      IF uSYS.UNIXCALL(Sys.newfstat, d0, d1, fd, SYS.ADR(origbuf), d2) THEN
-	 SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
-	 RETURN TRUE
-      ELSE
-	 SysErrors.Raise(errors, d0, Sys.newfstat, "");
-	 RETURN FALSE
-      END;
-   END Fstat;
-
-BEGIN
-   SysConversions.Compile(statbuffmt, statbufconv);
-END ulmSysStat.
diff --git a/src/lib/ulm/armv7a_hardfp/ulmSysTypes.Mod b/src/lib/ulm/armv7a_hardfp/ulmSysTypes.Mod
deleted file mode 100644
index 174140e7..00000000
--- a/src/lib/ulm/armv7a_hardfp/ulmSysTypes.Mod
+++ /dev/null
@@ -1,70 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-1994 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: SysTypes.om,v 1.1 1994/02/23 08:01:38 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: SysTypes.om,v $
-   Revision 1.1  1994/02/23  08:01:38  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 9/89
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmSysTypes;
-
-   IMPORT Types := ulmTypes;
-
-   TYPE
-      Address* = Types.Address;
-      UntracedAddress* = Types.UntracedAddress;
-      Count* = Types.Count;
-      Size* = Types.Size;
-      Byte* = Types.Byte;
-
-      File* = (*INTEGER*)LONGINT; (* in ulm's system both INTEGER and LONGINT are 4 bytes long *)
-      Offset* = LONGINT;
-      Device* = LONGINT;
-      Inode* = LONGINT;
-      Time* = LONGINT;
-
-      Word* = INTEGER; (* must have the size of C's int-type *)
-
-   (* Note: linux supports wait4 but not waitid, i.e. these
-    * constants aren't needed. *)
-   (* 
-   CONST
-      (* possible values of the idtype parameter (4 bytes),
-	 see <sys/procset.h>
-      *)
-      idPid = 0; (* a process identifier *)
-      idPpid = 1; (* a parent process identifier *)
-      idPgid = 2; (* a process group (job control group) identifier *)
-      idSid = 3; (* a session identifier *)
-      idCid = 4; (* a scheduling class identifier *)
-      idUid = 5; (* a user identifier *)
-      idGid = 6; (* a group identifier *)
-      idAll = 7; (* all processes *)
-      idLwpid = 8; (* an LWP identifier *)
-   TYPE
-      IdType = INTEGER; (* idPid .. idLwpid *)
-   *)
-
-END ulmSysTypes.
diff --git a/src/lib/ulm/armv7a_hardfp/ulmTypes.Mod b/src/lib/ulm/armv7a_hardfp/ulmTypes.Mod
deleted file mode 100644
index fe2d6eca..00000000
--- a/src/lib/ulm/armv7a_hardfp/ulmTypes.Mod
+++ /dev/null
@@ -1,133 +0,0 @@
-(* Ulm's Oberon Library
-   Copyright (C) 1989-2000 by University of Ulm, SAI, D-89069 Ulm, Germany
-   ----------------------------------------------------------------------------
-   Ulm's Oberon Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version
-   2 of the License, or (at your option) any later version.
-
-   Ulm's Oberon Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this library; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-   ----------------------------------------------------------------------------
-   E-mail contact: oberon@mathematik.uni-ulm.de
-   ----------------------------------------------------------------------------
-   $Id: Types.om,v 1.5 2000/12/13 10:03:00 borchert Exp $
-   ----------------------------------------------------------------------------
-   $Log: Types.om,v $
-   Revision 1.5  2000/12/13  10:03:00  borchert
-   SetInt type used in msb constant
-
-   Revision 1.4  2000/12/13  09:51:57  borchert
-   constants and types for the relationship of INTEGER and SET added
-
-   Revision 1.3  1998/09/25 15:23:09  borchert
-   Real32..Real128 added
-
-   Revision 1.2  1994/07/01  11:08:04  borchert
-   IntAddress, Int8/16/32, ToInt8/16/32 and bit/little endian stuff added
-
-   Revision 1.1  1994/02/22  20:12:14  borchert
-   Initial revision
-
-   ----------------------------------------------------------------------------
-   AFB 9/93
-   ----------------------------------------------------------------------------
-*)
-
-MODULE ulmTypes;
-
-   (* compiler-dependent type definitions;
-      this version works for Ulm's Oberon Compilers on
-      following architectures: m68k and sparc
-   *)
-
-   IMPORT SYS := SYSTEM;
-
-   TYPE
-      Address* = LONGINT (*SYS.ADDRESS*);
-      (* ulm compiler can accept 
-         VAR p : SYSTEM.ADDRESS; // SYSTEM.PTR in ETH and V4 versions
-         ...
-         p := SYSTEM.ADR(something);
-         and this is how it is used in ulm oberon system library,
-         while SYSTEM.ADR returns LONGINT in ETH and V4 versions.
-         Thus I leave it as LONGINT for now, before coming up with better solution -- noch *)
-      UntracedAddress* = POINTER[1] TO UntracedAddressDesc; (*SYS.UNTRACEDADDRESS;*)
-      UntracedAddressDesc* = RECORD[1] END;
-      Count* = LONGINT;
-      Size* = Count;
-      Byte* = SYS.BYTE;
-      IntAddress* = LONGINT;
-      Int8* = SHORTINT;
-      Int16* = INTEGER; 
-      Int32* = LONGINT;
-      Real32* = REAL;
-      Real64* = LONGREAL;
-
-   CONST
-      bigEndian* = 0;    (* SPARC, M68K etc *)
-      littleEndian* = 1; (* Intel 80x86, VAX etc *)
-      byteorder* = littleEndian; (* machine-dependent constant *)
-   TYPE
-      ByteOrder* = SHORTINT; (* bigEndian or littleEndian *)
-
-   (* following constants and type definitions try to make
-      conversions from INTEGER to SET and vice versa more portable
-      to allow for bit operations on INTEGER values
-   *)
-   TYPE
-      SetInt* = LONGINT; (* INTEGER type that corresponds to SET *)
-   VAR msb* : SET;
-   msbIsMax*, msbIs0*: SHORTINT;
-   msbindex*, lsbindex*, nofbits*: LONGINT;
-
-   PROCEDURE ToInt8*(int: LONGINT) : Int8;
-   BEGIN
-      RETURN SHORT(SHORT(int))
-   END ToInt8;
-
-   PROCEDURE ToInt16*(int: LONGINT) : Int16;
-   BEGIN
-      RETURN SYS.VAL(Int16, int)
-   END ToInt16;
-
-   PROCEDURE ToInt32*(int: LONGINT) : Int32;
-   BEGIN
-      RETURN int
-   END ToInt32;
-
-   PROCEDURE ToReal32*(real: LONGREAL) : Real32;
-   BEGIN
-      RETURN SHORT(real)
-   END ToReal32;
-
-   PROCEDURE ToReal64*(real: LONGREAL) : Real64;
-   BEGIN
-      RETURN real
-   END ToReal64;
-
-BEGIN
-      msb := SYS.VAL(SET, MIN(SetInt));
-	 (* most significant bit, converted to a SET *)
-      (* we expect msbIsMax XOR msbIs0 to be 1;
-	 this is checked for by an assertion
-      *)
-      msbIsMax := SYS.VAL(SHORTINT, (msb = {MAX(SET)}));
-	 (* is 1, if msb equals {MAX(SET)} *)
-      msbIs0 := SYS.VAL(SHORTINT, (msb = {0}));
-	 (* is 0, if msb equals {0} *)
-      msbindex := msbIsMax * MAX(SET);
-	 (* set element that corresponds to the most-significant-bit *)
-      lsbindex := MAX(SET) - msbindex;
-	 (* set element that corresponds to the lowest-significant-bit *)
-      nofbits := MAX(SET) + 1;
-	 (* number of elements in SETs *)
-
-   ASSERT((msbIs0 = 1) & (msbIsMax = 0) OR (msbIs0 = 0) & (msbIsMax = 1));
-END ulmTypes.
diff --git a/src/lib/ulm/powerpc/ulmSYSTEM.Mod b/src/lib/ulm/powerpc/ulmSYSTEM.Mod
new file mode 100644
index 00000000..814c0607
--- /dev/null
+++ b/src/lib/ulm/powerpc/ulmSYSTEM.Mod
@@ -0,0 +1,137 @@
+MODULE ulmSYSTEM;
+IMPORT SYSTEM, Unix, Sys := ulmSys;
+
+TYPE pchar = POINTER TO ARRAY 1 OF CHAR;
+     pstring = POINTER TO ARRAY 1024 OF CHAR;
+     pstatus = POINTER TO Unix.Status;
+
+      TYPE bytearray* = ARRAY SIZE(LONGINT) OF SYSTEM.BYTE; (* need this because voc does not convert implicitly LONGINT to ARRAY OF BYTE; -- noch *)
+          pbytearray* = POINTER TO bytearray;
+      TYPE longrealarray* = ARRAY SIZE(LONGREAL) OF SYSTEM.BYTE; (* need this because voc does not convert implicitly LONGINT to ARRAY OF BYTE; -- noch *)
+          plongrealarray* = POINTER TO bytearray;
+
+   PROCEDURE LongToByteArr* ( l : LONGINT; VAR bar : bytearray); (* noch *)
+   VAR b : SYSTEM.BYTE;
+       p : pbytearray;
+       i : LONGINT;
+   BEGIN
+      p := SYSTEM.VAL(pbytearray, SYSTEM.ADR(l));
+      FOR i := 0 TO SIZE(LONGINT) -1 DO
+         b := p^[i]; bar[i] := b;
+      END
+   END LongToByteArr;
+
+   PROCEDURE LRealToByteArr* ( l : LONGREAL; VAR lar : longrealarray); (* noch *)
+   VAR b : SYSTEM.BYTE;
+       p : plongrealarray;
+       i : LONGINT;
+   BEGIN
+      p := SYSTEM.VAL(plongrealarray, SYSTEM.ADR(l));
+      FOR i := 0 TO SIZE(LONGREAL) -1 DO
+         b := p^[i]; lar[i] := b;
+      END
+   END LRealToByteArr;
+
+
+(*
+        PROCEDURE -Write(adr, n: LONGINT): LONGINT
+	  "write(1/*stdout*/, adr, n)";
+
+	PROCEDURE -read(VAR ch: CHAR): LONGINT
+	  "read(0/*stdin*/, ch, 1)";
+*)
+
+  PROCEDURE TAS*(VAR flag:BOOLEAN): BOOLEAN; (* added for compatibility with ulmSYSTEM module; noch *)
+  VAR oldflag : BOOLEAN;
+  BEGIN
+     oldflag := flag;
+     flag := TRUE;
+     RETURN oldflag;
+  END TAS;
+
+  PROCEDURE UNIXCALL*(syscall: LONGINT; VAR d0, d1: LONGINT; (* in ulm version both LONGINT and INTEGER are 4 byte size *)
+                     arg1, arg2, arg3: LONGINT) : BOOLEAN;  
+  VAR
+      n : LONGINT;
+      ch : CHAR;
+      pch : pchar;
+      pstr : pstring; 
+      pst : pstatus;
+  BEGIN
+  
+  IF syscall = Sys.read THEN
+    d0 := Unix.Read(arg1, arg2, arg3);
+    IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+    (*NEW(pch);
+    pch := SYSTEM.VAL(pchar, arg2);
+    ch := pch^[0];
+    n := read(ch);
+    IF n # 1 THEN 
+       ch := 0X;
+       RETURN FALSE
+    ELSE
+       pch^[0] := ch;
+       RETURN TRUE
+    END;
+    *)
+  ELSIF syscall = Sys.write THEN
+    d0 := Unix.Write(arg1, arg2, arg3);
+    IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+    (*NEW(pch);
+    pch := SYSTEM.VAL(pchar, arg2);
+    n := Write(SYSTEM.VAL(LONGINT, pch), 1);
+    IF n # 1 THEN RETURN FALSE ELSE RETURN TRUE END
+    *)
+  ELSIF syscall = Sys.open THEN  
+     pstr := SYSTEM.VAL(pstring, arg1);
+     d0 := Unix.Open(pstr^, SYSTEM.VAL(SET, arg3), SYSTEM.VAL(SET, arg2));
+     IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.close THEN
+     d0 := Unix.Close(arg1);
+     IF d0 = 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.lseek THEN
+     d0 := Unix.Lseek(arg1, arg2, arg3);
+     IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.ioctl THEN
+     d0 := Unix.Ioctl(arg1, arg2, arg3);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.fcntl THEN
+     d0 := Unix.Fcntl (arg1, arg2, arg3);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.dup THEN
+     d0 := Unix.Dup(arg1);
+     RETURN d0 > 0;
+  ELSIF syscall = Sys.pipe THEN
+     d0 := Unix.Pipe(arg1);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.newstat THEN
+     pst := SYSTEM.VAL(pstatus, arg2);
+     pstr := SYSTEM.VAL(pstring, arg1);
+     d0 := Unix.Stat(pstr^, pst^);
+     RETURN d0 >= 0
+  ELSIF syscall = Sys.newfstat THEN
+     pst := SYSTEM.VAL(pstatus, arg2);
+     d0 := Unix.Fstat(arg1, pst^);
+     RETURN d0 >= 0;
+  END
+
+  END UNIXCALL;
+
+
+  PROCEDURE UNIXFORK(VAR pid: LONGINT) : BOOLEAN;
+  BEGIN
+
+  END UNIXFORK;
+
+  PROCEDURE UNIXSIGNAL(signo: INTEGER; p: PROCEDURE;
+                       VAR old: PROCEDURE; VAR error: INTEGER) : BOOLEAN;
+  BEGIN
+
+  END UNIXSIGNAL;
+
+  PROCEDURE WMOVE*(from, to, n : LONGINT);
+  VAR l : LONGINT;
+  BEGIN
+     SYSTEM.MOVE(from, to, n);
+  END WMOVE;
+END ulmSYSTEM.
diff --git a/src/lib/ulm/x86/ulmSYSTEM.Mod b/src/lib/ulm/x86/ulmSYSTEM.Mod
new file mode 100644
index 00000000..814c0607
--- /dev/null
+++ b/src/lib/ulm/x86/ulmSYSTEM.Mod
@@ -0,0 +1,137 @@
+MODULE ulmSYSTEM;
+IMPORT SYSTEM, Unix, Sys := ulmSys;
+
+TYPE pchar = POINTER TO ARRAY 1 OF CHAR;
+     pstring = POINTER TO ARRAY 1024 OF CHAR;
+     pstatus = POINTER TO Unix.Status;
+
+      TYPE bytearray* = ARRAY SIZE(LONGINT) OF SYSTEM.BYTE; (* need this because voc does not convert implicitly LONGINT to ARRAY OF BYTE; -- noch *)
+          pbytearray* = POINTER TO bytearray;
+      TYPE longrealarray* = ARRAY SIZE(LONGREAL) OF SYSTEM.BYTE; (* need this because voc does not convert implicitly LONGINT to ARRAY OF BYTE; -- noch *)
+          plongrealarray* = POINTER TO bytearray;
+
+   PROCEDURE LongToByteArr* ( l : LONGINT; VAR bar : bytearray); (* noch *)
+   VAR b : SYSTEM.BYTE;
+       p : pbytearray;
+       i : LONGINT;
+   BEGIN
+      p := SYSTEM.VAL(pbytearray, SYSTEM.ADR(l));
+      FOR i := 0 TO SIZE(LONGINT) -1 DO
+         b := p^[i]; bar[i] := b;
+      END
+   END LongToByteArr;
+
+   PROCEDURE LRealToByteArr* ( l : LONGREAL; VAR lar : longrealarray); (* noch *)
+   VAR b : SYSTEM.BYTE;
+       p : plongrealarray;
+       i : LONGINT;
+   BEGIN
+      p := SYSTEM.VAL(plongrealarray, SYSTEM.ADR(l));
+      FOR i := 0 TO SIZE(LONGREAL) -1 DO
+         b := p^[i]; lar[i] := b;
+      END
+   END LRealToByteArr;
+
+
+(*
+        PROCEDURE -Write(adr, n: LONGINT): LONGINT
+	  "write(1/*stdout*/, adr, n)";
+
+	PROCEDURE -read(VAR ch: CHAR): LONGINT
+	  "read(0/*stdin*/, ch, 1)";
+*)
+
+  PROCEDURE TAS*(VAR flag:BOOLEAN): BOOLEAN; (* added for compatibility with ulmSYSTEM module; noch *)
+  VAR oldflag : BOOLEAN;
+  BEGIN
+     oldflag := flag;
+     flag := TRUE;
+     RETURN oldflag;
+  END TAS;
+
+  PROCEDURE UNIXCALL*(syscall: LONGINT; VAR d0, d1: LONGINT; (* in ulm version both LONGINT and INTEGER are 4 byte size *)
+                     arg1, arg2, arg3: LONGINT) : BOOLEAN;  
+  VAR
+      n : LONGINT;
+      ch : CHAR;
+      pch : pchar;
+      pstr : pstring; 
+      pst : pstatus;
+  BEGIN
+  
+  IF syscall = Sys.read THEN
+    d0 := Unix.Read(arg1, arg2, arg3);
+    IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+    (*NEW(pch);
+    pch := SYSTEM.VAL(pchar, arg2);
+    ch := pch^[0];
+    n := read(ch);
+    IF n # 1 THEN 
+       ch := 0X;
+       RETURN FALSE
+    ELSE
+       pch^[0] := ch;
+       RETURN TRUE
+    END;
+    *)
+  ELSIF syscall = Sys.write THEN
+    d0 := Unix.Write(arg1, arg2, arg3);
+    IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+    (*NEW(pch);
+    pch := SYSTEM.VAL(pchar, arg2);
+    n := Write(SYSTEM.VAL(LONGINT, pch), 1);
+    IF n # 1 THEN RETURN FALSE ELSE RETURN TRUE END
+    *)
+  ELSIF syscall = Sys.open THEN  
+     pstr := SYSTEM.VAL(pstring, arg1);
+     d0 := Unix.Open(pstr^, SYSTEM.VAL(SET, arg3), SYSTEM.VAL(SET, arg2));
+     IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.close THEN
+     d0 := Unix.Close(arg1);
+     IF d0 = 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.lseek THEN
+     d0 := Unix.Lseek(arg1, arg2, arg3);
+     IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.ioctl THEN
+     d0 := Unix.Ioctl(arg1, arg2, arg3);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.fcntl THEN
+     d0 := Unix.Fcntl (arg1, arg2, arg3);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.dup THEN
+     d0 := Unix.Dup(arg1);
+     RETURN d0 > 0;
+  ELSIF syscall = Sys.pipe THEN
+     d0 := Unix.Pipe(arg1);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.newstat THEN
+     pst := SYSTEM.VAL(pstatus, arg2);
+     pstr := SYSTEM.VAL(pstring, arg1);
+     d0 := Unix.Stat(pstr^, pst^);
+     RETURN d0 >= 0
+  ELSIF syscall = Sys.newfstat THEN
+     pst := SYSTEM.VAL(pstatus, arg2);
+     d0 := Unix.Fstat(arg1, pst^);
+     RETURN d0 >= 0;
+  END
+
+  END UNIXCALL;
+
+
+  PROCEDURE UNIXFORK(VAR pid: LONGINT) : BOOLEAN;
+  BEGIN
+
+  END UNIXFORK;
+
+  PROCEDURE UNIXSIGNAL(signo: INTEGER; p: PROCEDURE;
+                       VAR old: PROCEDURE; VAR error: INTEGER) : BOOLEAN;
+  BEGIN
+
+  END UNIXSIGNAL;
+
+  PROCEDURE WMOVE*(from, to, n : LONGINT);
+  VAR l : LONGINT;
+  BEGIN
+     SYSTEM.MOVE(from, to, n);
+  END WMOVE;
+END ulmSYSTEM.
diff --git a/src/lib/ulm/x86_64/ulmSYSTEM.Mod b/src/lib/ulm/x86_64/ulmSYSTEM.Mod
new file mode 100644
index 00000000..fa6c66a6
--- /dev/null
+++ b/src/lib/ulm/x86_64/ulmSYSTEM.Mod
@@ -0,0 +1,137 @@
+MODULE ulmSYSTEM;
+IMPORT SYSTEM, Unix, Sys := ulmSys;
+
+TYPE pchar = POINTER TO ARRAY 1 OF CHAR;
+     pstring = POINTER TO ARRAY 1024 OF CHAR;
+     pstatus = POINTER TO Unix.Status;
+
+      TYPE bytearray* = ARRAY SIZE(LONGINT) OF SYSTEM.BYTE; (* need this because voc does not convert implicitly LONGINT to ARRAY OF BYTE; -- noch *)
+          pbytearray* = POINTER TO bytearray;
+      TYPE longrealarray* = ARRAY SIZE(LONGREAL) OF SYSTEM.BYTE; (* need this because voc does not convert implicitly LONGINT to ARRAY OF BYTE; -- noch *)
+          plongrealarray* = POINTER TO bytearray;
+
+   PROCEDURE LongToByteArr* ( l : LONGINT; VAR bar : bytearray); (* noch *)
+   VAR b : SYSTEM.BYTE;
+       p : pbytearray;
+       i : LONGINT;
+   BEGIN
+      p := SYSTEM.VAL(pbytearray, SYSTEM.ADR(l));
+      FOR i := 0 TO SIZE(LONGINT) -1 DO
+         b := p^[i]; bar[i] := b;
+      END
+   END LongToByteArr;
+
+   PROCEDURE LRealToByteArr* ( l : LONGREAL; VAR lar : longrealarray); (* noch *)
+   VAR b : SYSTEM.BYTE;
+       p : plongrealarray;
+       i : LONGINT;
+   BEGIN
+      p := SYSTEM.VAL(plongrealarray, SYSTEM.ADR(l));
+      FOR i := 0 TO SIZE(LONGREAL) -1 DO
+         b := p^[i]; lar[i] := b;
+      END
+   END LRealToByteArr;
+
+
+(*
+        PROCEDURE -Write(adr, n: LONGINT): LONGINT
+	  "write(1/*stdout*/, adr, n)";
+
+	PROCEDURE -read(VAR ch: CHAR): LONGINT
+	  "read(0/*stdin*/, ch, 1)";
+*)
+
+  PROCEDURE TAS*(VAR flag:BOOLEAN): BOOLEAN; (* added for compatibility with ulmSYSTEM module; noch *)
+  VAR oldflag : BOOLEAN;
+  BEGIN
+     oldflag := flag;
+     flag := TRUE;
+     RETURN oldflag;
+  END TAS;
+
+  PROCEDURE UNIXCALL*(syscall: LONGINT; VAR d0, d1: LONGINT; (* in ulm version both LONGINT and INTEGER are 4 byte size *)
+                     arg1, arg2, arg3: LONGINT) : BOOLEAN;  
+  VAR
+      n : LONGINT;
+      ch : CHAR;
+      pch : pchar;
+      pstr : pstring; 
+      pst : pstatus;
+  BEGIN
+  
+  IF syscall = Sys.read THEN
+    d0 := Unix.Read(SHORT(arg1), arg2, arg3);
+    IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+    (*NEW(pch);
+    pch := SYSTEM.VAL(pchar, arg2);
+    ch := pch^[0];
+    n := read(ch);
+    IF n # 1 THEN 
+       ch := 0X;
+       RETURN FALSE
+    ELSE
+       pch^[0] := ch;
+       RETURN TRUE
+    END;
+    *)
+  ELSIF syscall = Sys.write THEN
+    d0 := Unix.Write(SHORT(arg1), arg2, arg3);
+    IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+    (*NEW(pch);
+    pch := SYSTEM.VAL(pchar, arg2);
+    n := Write(SYSTEM.VAL(LONGINT, pch), 1);
+    IF n # 1 THEN RETURN FALSE ELSE RETURN TRUE END
+    *)
+  ELSIF syscall = Sys.open THEN  
+     pstr := SYSTEM.VAL(pstring, arg1);
+     d0 := Unix.Open(pstr^, SHORT(arg3), arg2);
+     IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.close THEN
+     d0 := Unix.Close(SHORT(arg1));
+     IF d0 = 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.lseek THEN
+     d0 := Unix.Lseek(SHORT(arg1), arg2, SHORT(arg3));
+     IF d0 >= 0 THEN RETURN TRUE ELSE RETURN FALSE END
+  ELSIF syscall = Sys.ioctl THEN
+     d0 := Unix.Ioctl(SHORT(arg1), SHORT(arg2), arg3);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.fcntl THEN
+     d0 := Unix.Fcntl (SHORT(arg1), SHORT(arg2), arg3);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.dup THEN
+     d0 := Unix.Dup(SHORT(arg1));
+     RETURN d0 > 0;
+  ELSIF syscall = Sys.pipe THEN
+     d0 := Unix.Pipe(arg1);
+     RETURN d0 >= 0;
+  ELSIF syscall = Sys.newstat THEN
+     pst := SYSTEM.VAL(pstatus, arg2);
+     pstr := SYSTEM.VAL(pstring, arg1);
+     d0 := Unix.Stat(pstr^, pst^);
+     RETURN d0 >= 0
+  ELSIF syscall = Sys.newfstat THEN
+     pst := SYSTEM.VAL(pstatus, arg2);
+     d0 := Unix.Fstat(SHORT(arg1), pst^);
+     RETURN d0 >= 0;
+  END
+
+  END UNIXCALL;
+
+
+  PROCEDURE UNIXFORK(VAR pid: LONGINT) : BOOLEAN;
+  BEGIN
+
+  END UNIXFORK;
+
+  PROCEDURE UNIXSIGNAL(signo: INTEGER; p: PROCEDURE;
+                       VAR old: PROCEDURE; VAR error: INTEGER) : BOOLEAN;
+  BEGIN
+
+  END UNIXSIGNAL;
+
+  PROCEDURE WMOVE*(from, to, n : LONGINT);
+  VAR l : LONGINT;
+  BEGIN
+     SYSTEM.MOVE(from, to, n);
+  END WMOVE;
+END ulmSYSTEM.
diff --git a/src/test/files/testFiles.Mod b/src/test/files/testFiles.Mod
index cc3b46ad..f6361b89 100644
--- a/src/test/files/testFiles.Mod
+++ b/src/test/files/testFiles.Mod
@@ -3,7 +3,7 @@ MODULE testFiles;
 
 IMPORT Files, Texts, Console;
 
-CONST file="makefile";
+CONST file="testFiles.Mod";
 
 VAR 
    T : Texts.Text;
@@ -22,7 +22,6 @@ IF F # NIL THEN
    WHILE ~R.eot DO
       Texts.Read (R, ch);
       Console.Char(ch);
-
    END;
 
 ELSE
diff --git a/voc.REMOVED.git-id b/voc.REMOVED.git-id
index f28caf06..815dd8e2 100644
--- a/voc.REMOVED.git-id
+++ b/voc.REMOVED.git-id
@@ -1 +1 @@
-2d1dfe090159d8b5a764dbb1bc3053389429baea
\ No newline at end of file
+390483e096444c9abc5a2a3d5bef2ca31a078305
\ No newline at end of file
diff --git a/vocstatic.linux.clang.x86_64.REMOVED.git-id b/vocstatic.linux.clang.x86_64.REMOVED.git-id
index f28caf06..5c275c9b 100644
--- a/vocstatic.linux.clang.x86_64.REMOVED.git-id
+++ b/vocstatic.linux.clang.x86_64.REMOVED.git-id
@@ -1 +1 @@
-2d1dfe090159d8b5a764dbb1bc3053389429baea
\ No newline at end of file
+714ce157d432a595cefd29b425be8e3b32084a7f
\ No newline at end of file
diff --git a/vocstatic.linux.gcc.x86.REMOVED.git-id b/vocstatic.linux.gcc.x86.REMOVED.git-id
index f9465f78..ffe4fb7a 100644
--- a/vocstatic.linux.gcc.x86.REMOVED.git-id
+++ b/vocstatic.linux.gcc.x86.REMOVED.git-id
@@ -1 +1 @@
-48e976f8cba73bc4391e004b135c881c8271f6e6
\ No newline at end of file
+4bacfbffebb82fe3863b5e4a6460310b75d6c19c
\ No newline at end of file
diff --git a/vocstatic.linux.gcc.x86_64.REMOVED.git-id b/vocstatic.linux.gcc.x86_64.REMOVED.git-id
index f28caf06..815dd8e2 100644
--- a/vocstatic.linux.gcc.x86_64.REMOVED.git-id
+++ b/vocstatic.linux.gcc.x86_64.REMOVED.git-id
@@ -1 +1 @@
-2d1dfe090159d8b5a764dbb1bc3053389429baea
\ No newline at end of file
+390483e096444c9abc5a2a3d5bef2ca31a078305
\ No newline at end of file