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fixed Longint to Byte Arr function; -- noch

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This commit is contained in:
norayr 2016-11-29 16:45:18 +04:00
parent 247852e0b7
commit c549f5847b
3 changed files with 682 additions and 689 deletions
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1294
src/library/ulm/ulmPrint.Mod
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3
src/library/ulm/ulmSYSTEM.Mod
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@ -19,7 +19,7 @@ TYPE pchar = POINTER TO ARRAY 1 OF CHAR;
i := 0;
REPEAT
SYSTEM.GET(adr + i, b);
lar[i] := b;
bar[i] := b;
INC(i)
UNTIL i = SIZE(LONGINT)
END LongToByteArr;
@ -138,4 +138,5 @@ TYPE pchar = POINTER TO ARRAY 1 OF CHAR;
BEGIN
SYSTEM.MOVE(from, to, n);
END WMOVE;
END ulmSYSTEM.

74
src/library/ulm/ulmTypes.Mod
View file

@ -40,7 +40,7 @@
----------------------------------------------------------------------------
*)
MODULE ulmTypes;
MODULE Types;
(* compiler-dependent type definitions;
this version works for Ulm's Oberon Compilers on
@ -51,24 +51,23 @@ MODULE ulmTypes;
TYPE
Address* = SYS.ADDRESS;
UntracedAddress* = POINTER[1] TO UntracedAddressDesc;
UntracedAddressDesc* = RECORD[1] END;
UntracedAddress* = POINTER[1] TO UntracedAddressDesc; (*SYS.UNTRACEDADDRESS;*)
UntracedAddressDesc* = RECORD[1] END;
Count* = SYS.INT32;
Size* = Count;
Byte* = SYS.BYTE;
IntAddress* = LONGINT;
Int8* = SYS.INT8;
Int16* = SYS.INT16;
Int32* = SYS.INT32;
Real32* = REAL;
Real64* = LONGREAL;
Count* = SYS.INT32;
Size* = Count;
Byte* = SYS.BYTE;
IntAddress* = SYS.INT32;
Int8* = SYS.INT8;
Int16* = SYS.INT16;
Int32* = SYS.INT32;
Real32* = LONGREAL;
Real64* = LONGREAL;
CONST
bigEndian* = 0; (* SPARC, M68K etc *)
bigEndian* = 0; (* SPARC, M68K etc *)
littleEndian* = 1; (* Intel 80x86, VAX etc *)
byteorder* = littleEndian; (* machine-dependent constant *)
byteorder* = littleEndian; (* machine-dependent constant *)
TYPE
ByteOrder* = SHORTINT; (* bigEndian or littleEndian *)
@ -77,14 +76,27 @@ MODULE ulmTypes;
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;
SetInt* = INTEGER; (* INTEGER type that corresponds to SET *)
CONST
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 *)
PROCEDURE ToInt8*(int: LONGINT) : Int8;
BEGIN
RETURN SYS.VAL(SHORTINT, int)
RETURN SHORT(SHORT(int))
END ToInt8;
PROCEDURE ToInt16*(int: LONGINT) : Int16;
@ -94,7 +106,7 @@ MODULE ulmTypes;
PROCEDURE ToInt32*(int: LONGINT) : Int32;
BEGIN
RETURN SYS.VAL(INTEGER, int)
RETURN int
END ToInt32;
PROCEDURE ToReal32*(real: LONGREAL) : Real32;
@ -104,25 +116,9 @@ MODULE ulmTypes;
PROCEDURE ToReal64*(real: LONGREAL) : Real64;
BEGIN
RETURN real
RETURN SHORT(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.
END Types.