Update system source to V2.

This commit is contained in:
David Brown 2016-06-16 14:14:39 +01:00
parent efb7b6b030
commit 4245c6e8b3
10 changed files with 2150 additions and 1482 deletions

View file

@ -1,238 +1,275 @@
#ifndef SYSTEM__h
#define SYSTEM__h
/*
#ifndef _WIN32
voc (jet backend) runtime system interface and macros library
copyright (c) Josef Templ, 1995, 1996
// Building for a Unix/Linux based system
#include <string.h> // For memcpy ...
#include <stdint.h> // For uintptr_t ...
gcc for Linux version (same as SPARC/Solaris2)
uses double # as concatenation operator
*/
#include <alloca.h>
#include <stdint.h> /* for type sizes -- noch */
extern void *memcpy(void *dest, const void *src, unsigned long n);
extern void *malloc(unsigned long size);
extern void exit(int status);
#define export
#define import extern
/* constants */
#define __MAXEXT 16
#define NIL 0L
#define POINTER__typ (long*)1L /* not NIL and not a valid type */
/* basic types */
//typedef char BOOLEAN;
#define BOOLEAN char
//typedef unsigned char CHAR;
#define CHAR unsigned char
//exactly two bytes
#define LONGCHAR unsigned short int
//typedef signed char SHORTINT;
#define SHORTINT signed char
//for x86 GNU/Linux
//typedef short int INTEGER;
//for x86_64 GNU/Linux
//typedef int INTEGER;
#define INTEGER int
//typedef long LONGINT;
#define LONGINT long
//typedef float REAL;
#define REAL float
//typedef double LONGREAL;
#define LONGREAL double
//typedef unsigned long SET;
#define SET unsigned long
typedef void *SYSTEM_PTR;
//#define *SYSTEM_PTR void
//typedef unsigned char SYSTEM_BYTE;
#define SYSTEM_BYTE unsigned char
typedef int8_t SYSTEM_INT8;
typedef int16_t SYSTEM_INT16;
typedef int32_t SYSTEM_INT32;
typedef int64_t SYSTEM_INT64;
/* runtime system routines */
extern long SYSTEM_DIV();
extern long SYSTEM_MOD();
extern long SYSTEM_ENTIER();
extern long SYSTEM_ASH();
extern long SYSTEM_ABS();
extern long SYSTEM_XCHK();
extern long SYSTEM_RCHK();
extern double SYSTEM_ABSD();
extern SYSTEM_PTR SYSTEM_NEWREC();
extern SYSTEM_PTR SYSTEM_NEWBLK();
#ifdef __STDC__
extern SYSTEM_PTR SYSTEM_NEWARR(long*, long, int, int, int, ...);
#else
extern SYSTEM_PTR SYSTEM_NEWARR();
#endif
extern SYSTEM_PTR SYSTEM_REGMOD();
extern void SYSTEM_INCREF();
extern void SYSTEM_REGCMD();
extern void SYSTEM_REGTYP();
extern void SYSTEM_REGFIN();
extern void SYSTEM_FINALL();
extern void SYSTEM_INIT();
extern void SYSTEM_FINI();
extern void SYSTEM_HALT();
extern void SYSTEM_INHERIT();
extern void SYSTEM_ENUMP();
extern void SYSTEM_ENUMR();
/* module registry */
#define __DEFMOD static void *m; if(m!=0)return m
#define __REGMOD(name, enum) if(m==0)m=SYSTEM_REGMOD((CHAR*)name,enum); else return m
#define __ENDMOD return m
#define __INIT(argc, argv) static void *m; SYSTEM_INIT(argc, (long)&argv);
#define __REGMAIN(name, enum) m=SYSTEM_REGMOD(name,enum)
#define __FINI SYSTEM_FINI(); return 0
#define __IMPORT(name) SYSTEM_INCREF(name##__init())
#define __REGCMD(name, cmd) SYSTEM_REGCMD(m, name, cmd)
// Building for Windows platform with either mingw under cygwin, or the MS C compiler
#ifdef _WIN64
typedef unsigned long long size_t;
typedef unsigned long long uintptr_t;
#else
typedef unsigned int size_t;
typedef unsigned int uintptr_t;
#endif /* _WIN64 */
typedef unsigned int uint32_t;
void * __cdecl memcpy(void * dest, const void * source, size_t size);
#endif
// The compiler uses 'import' and 'export' which translate to 'extern' and
// nothing respectively.
#define import extern
#define export
// Known constants
#define NIL ((void*)0)
#define __MAXEXT 16
#define POINTER__typ ((LONGINT*)(1)) // not NIL and not a valid type
// Oberon types
#define BOOLEAN char
#define SYSTEM_BYTE unsigned char
#define CHAR unsigned char
#define SHORTINT signed char
#define REAL float
#define LONGREAL double
#define SYSTEM_PTR void*
// For 32 bit builds, the size of LONGINT depends on a make option:
#if (__SIZEOF_POINTER__ == 8) || defined(LARGE) || defined(_WIN64)
#define INTEGER int // INTEGER is 32 bit.
#define LONGINT long long // LONGINT is 64 bit. (long long is always 64 bits, while long can be 32 bits e.g. under MSC/MingW)
#else
#define INTEGER short int // INTEGER is 16 bit.
#define LONGINT long // LONGINT is 32 bit.
#endif
#define SET unsigned LONGINT
// OS Memory allocation interfaces are in PlatformXXX.Mod
extern LONGINT Platform_OSAllocate (LONGINT size);
extern void Platform_OSFree (LONGINT addr);
// Run time system routines in SYSTEM.c
extern LONGINT SYSTEM_XCHK (LONGINT i, LONGINT ub);
extern LONGINT SYSTEM_RCHK (LONGINT i, LONGINT ub);
extern LONGINT SYSTEM_ASH (LONGINT i, LONGINT n);
extern LONGINT SYSTEM_ABS (LONGINT i);
extern double SYSTEM_ABSD (double i);
extern void SYSTEM_INHERIT(LONGINT *t, LONGINT *t0);
extern void SYSTEM_ENUMP (void *adr, LONGINT n, void (*P)());
extern void SYSTEM_ENUMR (void *adr, LONGINT *typ, LONGINT size, LONGINT n, void (*P)());
extern LONGINT SYSTEM_DIV (unsigned LONGINT x, unsigned LONGINT y);
extern LONGINT SYSTEM_MOD (unsigned LONGINT x, unsigned LONGINT y);
extern LONGINT SYSTEM_ENTIER (double x);
// Signal handling in SYSTEM.c
#ifndef _WIN32
extern void SystemSetHandler(int s, uintptr_t h);
#else
extern void SystemSetInterruptHandler(uintptr_t h);
extern void SystemSetQuitHandler (uintptr_t h);
#endif
// String comparison
static int __str_cmp(CHAR *x, CHAR *y){
LONGINT i = 0;
CHAR ch1, ch2;
do {ch1 = x[i]; ch2 = y[i]; i++;
if (!ch1) return -(int)ch2;
} while (ch1==ch2);
return (int)ch1 - (int)ch2;
}
#define __STRCMP(a,b) __str_cmp((CHAR*)(a), (CHAR*)(b))
// Inline string, record and array copy
#define __COPY(s, d, n) {char*_a=(void*)s,*_b=(void*)d; LONGINT _i=0,_t=n-1; \
while(_i<_t&&((_b[_i]=_a[_i])!=0)){_i++;};_b[_i]=0;}
#define __DUP(x, l, t) x=(void*)memcpy((void*)(uintptr_t)Platform_OSAllocate(l*sizeof(t)),x,l*sizeof(t))
#define __DUPARR(v, t) v=(void*)memcpy(v##__copy,v,sizeof(t))
#define __DEL(x) Platform_OSFree((LONGINT)(uintptr_t)x)
/* SYSTEM ops */
#define __SYSNEW(p, len) p=SYSTEM_NEWBLK((long)(len))
#define __VAL(t, x) (*(t*)&(x))
#define __GET(a, x, t) x= *(t*)(a)
#define __PUT(a, x, t) *(t*)(a)=x
#define __LSHL(x, n, t) ((t)((unsigned t)(x)<<(n)))
#define __LSHR(x, n, t) ((t)((unsigned t)(x)>>(n)))
#define __LSH(x, n, t) ((n)>=0? __LSHL(x, n, t): __LSHR(x, -(n), t))
#define __ROTL(x, n, t) ((t)((unsigned t)(x)<<(n)|(unsigned t)(x)>>(8*sizeof(t)-(n))))
#define __ROTR(x, n, t) ((t)((unsigned t)(x)>>(n)|(unsigned t)(x)<<(8*sizeof(t)-(n))))
#define __LSHR(x, n, t) ((t)((unsigned t)(x)>>(n)))
#define __LSH(x, n, t) ((n)>=0? __LSHL(x, n, t): __LSHR(x, -(n), t))
#define __ROTL(x, n, t) ((t)((unsigned t)(x)<<(n)|(unsigned t)(x)>>(8*sizeof(t)-(n))))
#define __ROTR(x, n, t) ((t)((unsigned t)(x)>>(n)|(unsigned t)(x)<<(8*sizeof(t)-(n))))
#define __ROT(x, n, t) ((n)>=0? __ROTL(x, n, t): __ROTR(x, -(n), t))
#define __BIT(x, n) (*(unsigned long*)(x)>>(n)&1)
#define __MOVE(s, d, n) memcpy((char*)(d),(char*)(s),n)
/* std procs and operator mappings */
#define __SHORT(x, y) ((int)((unsigned long)(x)+(y)<(y)+(y)?(x):(__HALT(-8),0)))
#define __SHORTF(x, y) ((int)(__RF((x)+(y),(y)+(y))-(y)))
#define __CHR(x) ((CHAR)__R(x, 256))
#define __CHRF(x) ((CHAR)__RF(x, 256))
#define __DIV(x, y) ((x)>=0?(x)/(y):-(((y)-1-(x))/(y)))
#define __DIVF(x, y) SYSTEM_DIV((long)(x),(long)(y))
#define __MOD(x, y) ((x)>=0?(x)%(y):__MODF(x,y))
#define __MODF(x, y) SYSTEM_MOD((long)(x),(long)(y))
#define __NEW(p, t) p=SYSTEM_NEWREC((long)t##__typ)
#define __NEWARR SYSTEM_NEWARR
#define __HALT(x) SYSTEM_HALT(x)
#define __ASSERT(cond, x) if (!(cond)) {SYSTEM_assert = x; SYSTEM_HALT(-1);}
#define __ENTIER(x) SYSTEM_ENTIER(x)
#define __ABS(x) (((x)<0)?-(x):(x))
#define __ABSF(x) SYSTEM_ABS((long)(x))
#define __ABSFD(x) SYSTEM_ABSD((double)(x))
#define __CAP(ch) ((CHAR)((ch)&0x5f))
#define __ODD(x) ((x)&1)
#define __IN(x, s) (((s)>>(x))&1)
#define __SETOF(x) ((SET)1<<(x))
#define __SETRNG(l, h) ((~(SET)0<<(l))&~(SET)0>>(8*sizeof(SET)-1-(h)))
#define __MASK(x, m) ((x)&~(m))
#define __COPY(s, d, n) {char*_a=(void*)s,*_b=(void*)d;long _i=0,_t=n-1;while(_i<_t&&((_b[_i]=_a[_i])!=0)){_i++;};_b[_i]=0;}
static int __STRCMP(x, y)
CHAR *x, *y;
{long i = 0; CHAR ch1, ch2;
do {ch1 = x[i]; ch2 = y[i]; i++;
if (!ch1) return -(int)ch2;
} while (ch1==ch2);
return (int)ch1 - (int)ch2;
}
#define __ASH(x, n) ((n)>=0?__ASHL(x,n):__ASHR(x,-(n)))
#define __ASHL(x, n) ((long)(x)<<(n))
#define __ASHR(x, n) ((long)(x)>>(n))
#define __ASHF(x, n) SYSTEM_ASH((long)(x), (long)(n))
#define __DUP(x, l, t) x=(void*)memcpy(alloca(l*sizeof(t)),x,l*sizeof(t))
#define __DUPARR(v, t) v=(void*)memcpy(v##__copy,v,sizeof(t))
#define __DEL(x) /* DUP with alloca frees storage automatically */
#define __IS(tag, typ, level) (*(tag-(__BASEOFF-level))==(long)typ##__typ)
#define __TYPEOF(p) (*(((long**)(p))-1))
#define __ISP(p, typ, level) __IS(__TYPEOF(p),typ,level)
#define __VAL(t, x) ((t)(x))
#define __VALP(t, x) ((t)(uintptr_t)(x))
/* runtime checks */
#define __X(i, ub) (((unsigned)(long)(i)<(unsigned long)(ub))?i:(__HALT(-2),0))
#define __XF(i, ub) SYSTEM_XCHK((long)(i), (long)(ub))
#define __RETCHK __retchk: __HALT(-3)
#define __CASECHK __HALT(-4)
#define __GUARDP(p, typ, level) ((typ*)(__ISP(p,typ,level)?p:(__HALT(-5),p)))
#define __GUARDR(r, typ, level) (*((typ*)(__IS(r##__typ,typ,level)?r:(__HALT(-5),r))))
#define __GUARDA(p, typ, level) ((struct typ*)(__IS(__TYPEOF(p),typ,level)?p:(__HALT(-5),p)))
#define __GUARDEQR(p, dyntyp, typ) if(dyntyp!=typ##__typ) __HALT(-6);*(p)
#define __GUARDEQP(p, typ) if(__TYPEOF(p)!=typ##__typ)__HALT(-6);*(p)
#define __WITHCHK __HALT(-7)
#define __R(i, ub) (((unsigned)(long)(i)<(unsigned long)(ub))?i:(__HALT(-8),0))
#define __RF(i, ub) SYSTEM_RCHK((long)(i),(long)(ub))
#define __GET(a, x, t) x= *(t*)(uintptr_t)(a)
#define __PUT(a, x, t) *(t*)(uintptr_t)(a)=x
#define __LSHL(x, n, t) ((t)((unsigned t)(x)<<(n)))
#define __LSHR(x, n, t) ((t)((unsigned t)(x)>>(n)))
#define __LSH(x, n, t) ((n)>=0? __LSHL(x, n, t): __LSHR(x, -(n), t))
#define __ROTL(x, n, t) ((t)((unsigned t)(x)<<(n)|(unsigned t)(x)>>(8*sizeof(t)-(n))))
#define __ROTR(x, n, t) ((t)((unsigned t)(x)>>(n)|(unsigned t)(x)<<(8*sizeof(t)-(n))))
#define __LSHR(x, n, t) ((t)((unsigned t)(x)>>(n)))
#define __LSH(x, n, t) ((n)>=0? __LSHL(x, n, t): __LSHR(x, -(n), t))
#define __ROTL(x, n, t) ((t)((unsigned t)(x)<<(n)|(unsigned t)(x)>>(8*sizeof(t)-(n))))
#define __ROTR(x, n, t) ((t)((unsigned t)(x)>>(n)|(unsigned t)(x)<<(8*sizeof(t)-(n))))
#define __ROT(x, n, t) ((n)>=0? __ROTL(x, n, t): __ROTR(x, -(n), t))
#define __BIT(x, n) (*(unsigned LONGINT*)(x)>>(n)&1)
#define __MOVE(s, d, n) memcpy((char*)(uintptr_t)(d),(char*)(uintptr_t)(s),n)
#define __ASHL(x, n) ((LONGINT)(x)<<(n))
#define __ASHR(x, n) ((LONGINT)(x)>>(n))
#define __ASH(x, n) ((n)>=0?__ASHL(x,n):__ASHR(x,-(n)))
#define __ASHF(x, n) SYSTEM_ASH((LONGINT)(x), (LONGINT)(n))
#define __SHORT(x, y) ((int)((unsigned LONGINT)(x)+(y)<(y)+(y)?(x):(__HALT(-8),0)))
#define __SHORTF(x, y) ((int)(__RF((x)+(y),(y)+(y))-(y)))
#define __CHR(x) ((CHAR)__R(x, 256))
#define __CHRF(x) ((CHAR)__RF(x, 256))
#define __DIV(x, y) ((x)>=0?(x)/(y):-(((y)-1-(x))/(y)))
#define __DIVF(x, y) SYSTEM_DIV((LONGINT)(x),(LONGINT)(y))
#define __MOD(x, y) ((x)>=0?(x)%(y):__MODF(x,y))
#define __MODF(x, y) SYSTEM_MOD((LONGINT)(x),(LONGINT)(y))
#define __ENTIER(x) SYSTEM_ENTIER(x)
#define __ABS(x) (((x)<0)?-(x):(x))
#define __ABSF(x) SYSTEM_ABS((LONGINT)(x))
#define __ABSFD(x) SYSTEM_ABSD((double)(x))
#define __CAP(ch) ((CHAR)((ch)&0x5f))
#define __ODD(x) ((x)&1)
#define __IN(x, s) (((s)>>(x))&1)
#define __SETOF(x) ((SET)1<<(x))
#define __SETRNG(l, h) ((~(SET)0<<(l))&~(SET)0>>(8*sizeof(SET)-1-(h)))
#define __MASK(x, m) ((x)&~(m))
/* record type descriptors */
#define __TDESC(t, m, n) \
static struct t##__desc {\
long tproc[m]; \
long tag, next, level, module; \
char name[24]; \
long *base[__MAXEXT]; \
char *rsrvd; \
long blksz, ptr[n+1]; \
} t##__desc
#define __BASEOFF (__MAXEXT+1)
#define __TPROC0OFF (__BASEOFF+24/sizeof(long)+5)
#define __EOM 1
#define __TDFLDS(name, size) {__EOM}, 1, 0, 0, 0, name, {0}, 0, size
#define __ENUMP(adr, n, P) SYSTEM_ENUMP(adr, (long)(n), P)
#define __ENUMR(adr, typ, size, n, P) SYSTEM_ENUMR(adr, typ, (long)(size), (long)(n), P)
// Runtime checks
#define __X(i, ub) (((unsigned LONGINT)(i)<(unsigned LONGINT)(ub))?i:(__HALT(-2),0))
#define __XF(i, ub) SYSTEM_XCHK((LONGINT)(i), (LONGINT)(ub))
#define __R(i, ub) (((unsigned LONGINT)(i)<(unsigned LONGINT)(ub))?i:(__HALT(-8),0))
#define __RF(i, ub) SYSTEM_RCHK((LONGINT)(i),(LONGINT)(ub))
#define __RETCHK __retchk: __HALT(-3); return 0;
#define __CASECHK __HALT(-4)
#define __WITHCHK __HALT(-7)
#define __GUARDP(p, typ, level) ((typ*)(__ISP(p,typ,level)?p:(__HALT(-5),p)))
#define __GUARDR(r, typ, level) (*((typ*)(__IS(r##__typ,typ,level)?r:(__HALT(-5),r))))
#define __GUARDA(p, typ, level) ((struct typ*)(__IS(__TYPEOF(p),typ,level)?p:(__HALT(-5),p)))
#define __GUARDEQR(p, dyntyp, typ) if(dyntyp!=typ##__typ) __HALT(-6);*(p)
#define __GUARDEQP(p, typ) if(__TYPEOF(p)!=typ##__typ)__HALT(-6);*(p)
// Module entry/registration/exit
extern void Heap_REGCMD();
extern SYSTEM_PTR Heap_REGMOD();
extern void Heap_REGTYP();
extern void Heap_INCREF();
#define __DEFMOD static void *m; if (m!=0) {return m;}
#define __REGCMD(name, cmd) Heap_REGCMD(m, (CHAR*)name, cmd)
#define __REGMOD(name, enum) if (m==0) {m = Heap_REGMOD((CHAR*)name,enum);}
#define __ENDMOD return m
#define __MODULE_IMPORT(name) Heap_INCREF(name##__init())
// Main module initialisation, registration and finalisation
extern void Platform_Init(INTEGER argc, LONGINT argv);
extern void *Platform_MainModule;
extern void Heap_FINALL();
#define __INIT(argc, argv) static void *m; Platform_Init((INTEGER)argc, (LONGINT)(uintptr_t)&argv);
#define __REGMAIN(name, enum) m = Heap_REGMOD((CHAR*)name,enum)
#define __FINI Heap_FINALL(); return 0
// Assertions and Halts
extern void Platform_Halt(LONGINT x);
extern void Platform_AssertFail(LONGINT x);
#define __HALT(x) Platform_Halt(x)
#define __ASSERT(cond, x) if (!(cond)) Platform_AssertFail((LONGINT)(x))
// Memory allocation
extern SYSTEM_PTR Heap_NEWBLK (LONGINT size);
extern SYSTEM_PTR Heap_NEWREC (LONGINT tag);
extern SYSTEM_PTR SYSTEM_NEWARR(LONGINT*, LONGINT, int, int, int, ...);
#define __SYSNEW(p, len) p = Heap_NEWBLK((LONGINT)(len))
#define __NEW(p, t) p = Heap_NEWREC((LONGINT)(uintptr_t)t##__typ)
#define __NEWARR SYSTEM_NEWARR
/* Type handling */
#define __TDESC(t, m, n) \
static struct t##__desc { \
LONGINT tproc[m]; /* Proc for each ptr field */ \
LONGINT tag; \
LONGINT next; /* Module table type list points here */ \
LONGINT level; \
LONGINT module; \
char name[24]; \
LONGINT basep[__MAXEXT]; /* List of bases this extends */ \
LONGINT reserved; \
LONGINT blksz; /* xxx_typ points here */ \
LONGINT ptr[n+1]; /* Offsets of ptrs up to -ve sentinel */ \
} t##__desc
#define __BASEOFF (__MAXEXT+1) // blksz as index to base.
#define __TPROC0OFF (__BASEOFF+24/sizeof(LONGINT)+5) // blksz as index to tproc IFF m=1.
#define __EOM 1
#define __TDFLDS(name, size) {__EOM}, 1, 0, 0, 0, name, {0}, 0, size
#define __ENUMP(adr, n, P) SYSTEM_ENUMP(adr, (LONGINT)(n), P)
#define __ENUMR(adr, typ, size, n, P) SYSTEM_ENUMR(adr, typ, (LONGINT)(size), (LONGINT)(n), P)
#define __INITYP(t, t0, level) \
t##__typ= &t##__desc.blksz; \
memcpy(t##__desc.base, t0##__typ - __BASEOFF, level*sizeof(long)); \
t##__desc.base[level]=t##__typ; \
t##__desc.module=(long)m; \
if(t##__desc.blksz!=sizeof(struct t)) __HALT(-15); \
t##__desc.blksz=(t##__desc.blksz+5*sizeof(long)-1)/(4*sizeof(long))*(4*sizeof(long)); \
SYSTEM_REGTYP(m, (long)&t##__desc.next); \
SYSTEM_INHERIT(t##__typ, t0##__typ)
t##__typ = (LONGINT*)&t##__desc.blksz; \
memcpy(t##__desc.basep, t0##__typ - __BASEOFF, level*sizeof(LONGINT)); \
t##__desc.basep[level] = (LONGINT)(uintptr_t)t##__typ; \
t##__desc.module = (LONGINT)(uintptr_t)m; \
if(t##__desc.blksz!=sizeof(struct t)) __HALT(-15); \
t##__desc.blksz = (t##__desc.blksz+5*sizeof(LONGINT)-1)/(4*sizeof(LONGINT))*(4*sizeof(LONGINT)); \
Heap_REGTYP(m, (LONGINT)(uintptr_t)&t##__desc.next); \
SYSTEM_INHERIT(t##__typ, t0##__typ)
#define __IS(tag, typ, level) (*(tag-(__BASEOFF-level))==(LONGINT)(uintptr_t)typ##__typ)
#define __TYPEOF(p) ((LONGINT*)(uintptr_t)(*(((LONGINT*)(p))-1)))
#define __ISP(p, typ, level) __IS(__TYPEOF(p),typ,level)
// Oberon-2 type bound procedures support
#define __INITBP(t, proc, num) *(t##__typ-(__TPROC0OFF+num))=(LONGINT)(uintptr_t)proc
#define __SEND(typ, num, funtyp, parlist) ((funtyp)((uintptr_t)*(typ-(__TPROC0OFF+num))))parlist
/* Oberon-2 type bound procedures support */
#define __INITBP(t, proc, num) *(t##__typ-(__TPROC0OFF+num))=(long)proc
#define __SEND(typ, num, funtyp, parlist) ((funtyp)(*(typ-(__TPROC0OFF+num))))parlist
/* runtime system variables */
extern LONGINT SYSTEM_argc;
extern LONGINT SYSTEM_argv;
extern void (*SYSTEM_Halt)();
extern LONGINT SYSTEM_halt;
extern LONGINT SYSTEM_assert;
extern SYSTEM_PTR SYSTEM_modules;
extern LONGINT SYSTEM_heapsize;
extern LONGINT SYSTEM_allocated;
extern LONGINT SYSTEM_lock;
extern SHORTINT SYSTEM_gclock;
extern BOOLEAN SYSTEM_interrupted;
/* ANSI prototypes; not used so far
static int __STRCMP(CHAR *x, CHAR *y);
void SYSTEM_INIT(int argc, long argvadr);
void SYSTEM_FINI(void);
long SYSTEM_XCHK(long i, long ub);
long SYSTEM_RCHK(long i, long ub);
long SYSTEM_ASH(long i, long n);
long SYSTEM_ABS(long i);
double SYSTEM_ABSD(double i);
void SYSTEM_INHERIT(long *t, long *t0);
void SYSTEM_ENUMP(long *adr, long n, void (*P)(void*));
void SYSTEM_ENUMR(char *adr, long *typ, long size, long n, void (*P)(void*));
long SYSTEM_DIV(unsigned long x, unsigned long y);
long SYSTEM_MOD(unsigned long x, unsigned long y);
long SYSTEM_ENTIER(double x);
void SYSTEM_HALT(int n);
*/
#endif