498da3221e
git-svn-id: svn://kolibrios.org@8859 a494cfbc-eb01-0410-851d-a64ba20cac60
411 lines
7.0 KiB
Plaintext
411 lines
7.0 KiB
Plaintext
(*
|
|
BSD 2-Clause License
|
|
|
|
Copyright (c) 2019-2021, Anton Krotov
|
|
All rights reserved.
|
|
*)
|
|
|
|
MODULE RTL;
|
|
|
|
IMPORT SYSTEM, F := FPU, Trap;
|
|
|
|
|
|
CONST
|
|
|
|
bit_depth = 32;
|
|
maxint = 7FFFFFFFH;
|
|
minint = 80000000H;
|
|
|
|
WORD = bit_depth DIV 8;
|
|
MAX_SET = bit_depth - 1;
|
|
|
|
|
|
VAR
|
|
|
|
Heap, Types, TypesCount: INTEGER;
|
|
|
|
|
|
PROCEDURE _error* (modnum, _module, err, line: INTEGER);
|
|
BEGIN
|
|
Trap.trap(modnum, _module, err, line)
|
|
END _error;
|
|
|
|
|
|
PROCEDURE _fmul* (b, a: INTEGER): INTEGER;
|
|
RETURN F.mul(b, a)
|
|
END _fmul;
|
|
|
|
|
|
PROCEDURE _fdiv* (b, a: INTEGER): INTEGER;
|
|
RETURN F._div(b, a)
|
|
END _fdiv;
|
|
|
|
|
|
PROCEDURE _fdivi* (b, a: INTEGER): INTEGER;
|
|
RETURN F._div(a, b)
|
|
END _fdivi;
|
|
|
|
|
|
PROCEDURE _fadd* (b, a: INTEGER): INTEGER;
|
|
RETURN F.add(b, a)
|
|
END _fadd;
|
|
|
|
|
|
PROCEDURE _fsub* (b, a: INTEGER): INTEGER;
|
|
RETURN F.sub(b, a)
|
|
END _fsub;
|
|
|
|
|
|
PROCEDURE _fsubi* (b, a: INTEGER): INTEGER;
|
|
RETURN F.sub(a, b)
|
|
END _fsubi;
|
|
|
|
|
|
PROCEDURE _fcmp* (op, b, a: INTEGER): BOOLEAN;
|
|
RETURN F.cmp(op, b, a)
|
|
END _fcmp;
|
|
|
|
|
|
PROCEDURE _floor* (x: INTEGER): INTEGER;
|
|
RETURN F.floor(x)
|
|
END _floor;
|
|
|
|
|
|
PROCEDURE _flt* (x: INTEGER): INTEGER;
|
|
RETURN F.flt(x)
|
|
END _flt;
|
|
|
|
|
|
PROCEDURE _pack* (n: INTEGER; VAR x: SET);
|
|
BEGIN
|
|
n := LSL((LSR(ORD(x), 23) MOD 256 + n) MOD 256, 23);
|
|
x := x - {23..30} + BITS(n)
|
|
END _pack;
|
|
|
|
|
|
PROCEDURE _unpk* (VAR n: INTEGER; VAR x: SET);
|
|
BEGIN
|
|
n := LSR(ORD(x), 23) MOD 256 - 127;
|
|
x := x - {30} + {23..29}
|
|
END _unpk;
|
|
|
|
|
|
PROCEDURE _rot* (VAR A: ARRAY OF INTEGER);
|
|
VAR
|
|
i, n, k: INTEGER;
|
|
|
|
BEGIN
|
|
k := LEN(A) - 1;
|
|
n := A[0];
|
|
i := 0;
|
|
WHILE i < k DO
|
|
A[i] := A[i + 1];
|
|
INC(i)
|
|
END;
|
|
A[k] := n
|
|
END _rot;
|
|
|
|
|
|
PROCEDURE _set* (b, a: INTEGER): INTEGER;
|
|
BEGIN
|
|
IF (a <= b) & (a <= MAX_SET) & (b >= 0) THEN
|
|
IF b > MAX_SET THEN
|
|
b := MAX_SET
|
|
END;
|
|
IF a < 0 THEN
|
|
a := 0
|
|
END;
|
|
a := LSR(ASR(minint, b - a), MAX_SET - b)
|
|
ELSE
|
|
a := 0
|
|
END
|
|
|
|
RETURN a
|
|
END _set;
|
|
|
|
|
|
PROCEDURE _set1* (a: INTEGER): INTEGER;
|
|
BEGIN
|
|
IF ASR(a, 5) = 0 THEN
|
|
a := LSL(1, a)
|
|
ELSE
|
|
a := 0
|
|
END
|
|
RETURN a
|
|
END _set1;
|
|
|
|
|
|
PROCEDURE _length* (len, str: INTEGER): INTEGER;
|
|
VAR
|
|
c: CHAR;
|
|
res: INTEGER;
|
|
|
|
BEGIN
|
|
res := 0;
|
|
REPEAT
|
|
SYSTEM.GET(str, c);
|
|
INC(str);
|
|
DEC(len);
|
|
INC(res)
|
|
UNTIL (len = 0) OR (c = 0X);
|
|
|
|
RETURN res - ORD(c = 0X)
|
|
END _length;
|
|
|
|
|
|
PROCEDURE _move* (bytes, dest, source: INTEGER);
|
|
VAR
|
|
b: BYTE;
|
|
i: INTEGER;
|
|
|
|
BEGIN
|
|
IF (source MOD WORD = 0) & (dest MOD WORD = 0) THEN
|
|
WHILE bytes >= WORD DO
|
|
SYSTEM.GET(source, i);
|
|
SYSTEM.PUT(dest, i);
|
|
INC(source, WORD);
|
|
INC(dest, WORD);
|
|
DEC(bytes, WORD)
|
|
END
|
|
END;
|
|
|
|
WHILE bytes > 0 DO
|
|
SYSTEM.GET(source, b);
|
|
SYSTEM.PUT8(dest, b);
|
|
INC(source);
|
|
INC(dest);
|
|
DEC(bytes)
|
|
END
|
|
END _move;
|
|
|
|
|
|
PROCEDURE _lengthw* (len, str: INTEGER): INTEGER;
|
|
VAR
|
|
c: WCHAR;
|
|
res: INTEGER;
|
|
|
|
BEGIN
|
|
res := 0;
|
|
REPEAT
|
|
SYSTEM.GET(str, c);
|
|
INC(str, 2);
|
|
DEC(len);
|
|
INC(res)
|
|
UNTIL (len = 0) OR (c = 0X);
|
|
|
|
RETURN res - ORD(c = 0X)
|
|
END _lengthw;
|
|
|
|
|
|
PROCEDURE strncmp (a, b, n: INTEGER): INTEGER;
|
|
VAR
|
|
A, B: CHAR;
|
|
res: INTEGER;
|
|
|
|
BEGIN
|
|
res := minint;
|
|
WHILE n > 0 DO
|
|
SYSTEM.GET(a, A); INC(a);
|
|
SYSTEM.GET(b, B); INC(b);
|
|
DEC(n);
|
|
IF A # B THEN
|
|
res := ORD(A) - ORD(B);
|
|
n := 0
|
|
ELSIF A = 0X THEN
|
|
res := 0;
|
|
n := 0
|
|
END
|
|
END
|
|
RETURN res
|
|
END strncmp;
|
|
|
|
|
|
PROCEDURE _strcmp* (op, len2, str2, len1, str1: INTEGER): BOOLEAN;
|
|
VAR
|
|
res: INTEGER;
|
|
bRes: BOOLEAN;
|
|
c: CHAR;
|
|
|
|
BEGIN
|
|
res := strncmp(str1, str2, MIN(len1, len2));
|
|
IF res = minint THEN
|
|
IF len1 > len2 THEN
|
|
SYSTEM.GET(str1 + len2, c);
|
|
res := ORD(c)
|
|
ELSIF len1 < len2 THEN
|
|
SYSTEM.GET(str2 + len1, c);
|
|
res := -ORD(c)
|
|
ELSE
|
|
res := 0
|
|
END
|
|
END;
|
|
|
|
CASE op OF
|
|
|0: bRes := res = 0
|
|
|1: bRes := res # 0
|
|
|2: bRes := res < 0
|
|
|3: bRes := res <= 0
|
|
|4: bRes := res > 0
|
|
|5: bRes := res >= 0
|
|
END
|
|
|
|
RETURN bRes
|
|
END _strcmp;
|
|
|
|
|
|
PROCEDURE strncmpw (a, b, n: INTEGER): INTEGER;
|
|
VAR
|
|
A, B: WCHAR;
|
|
res: INTEGER;
|
|
|
|
BEGIN
|
|
res := minint;
|
|
WHILE n > 0 DO
|
|
SYSTEM.GET(a, A); INC(a, 2);
|
|
SYSTEM.GET(b, B); INC(b, 2);
|
|
DEC(n);
|
|
IF A # B THEN
|
|
res := ORD(A) - ORD(B);
|
|
n := 0
|
|
ELSIF A = 0X THEN
|
|
res := 0;
|
|
n := 0
|
|
END
|
|
END
|
|
RETURN res
|
|
END strncmpw;
|
|
|
|
|
|
PROCEDURE _strcmpw* (op, len2, str2, len1, str1: INTEGER): BOOLEAN;
|
|
VAR
|
|
res: INTEGER;
|
|
bRes: BOOLEAN;
|
|
c: WCHAR;
|
|
|
|
BEGIN
|
|
res := strncmpw(str1, str2, MIN(len1, len2));
|
|
IF res = minint THEN
|
|
IF len1 > len2 THEN
|
|
SYSTEM.GET(str1 + len2 * 2, c);
|
|
res := ORD(c)
|
|
ELSIF len1 < len2 THEN
|
|
SYSTEM.GET(str2 + len1 * 2, c);
|
|
res := -ORD(c)
|
|
ELSE
|
|
res := 0
|
|
END
|
|
END;
|
|
|
|
CASE op OF
|
|
|0: bRes := res = 0
|
|
|1: bRes := res # 0
|
|
|2: bRes := res < 0
|
|
|3: bRes := res <= 0
|
|
|4: bRes := res > 0
|
|
|5: bRes := res >= 0
|
|
END
|
|
|
|
RETURN bRes
|
|
END _strcmpw;
|
|
|
|
|
|
PROCEDURE _arrcpy* (base_size, len_dst, dst, len_src, src: INTEGER): BOOLEAN;
|
|
VAR
|
|
res: BOOLEAN;
|
|
|
|
BEGIN
|
|
IF len_src > len_dst THEN
|
|
res := FALSE
|
|
ELSE
|
|
_move(len_src * base_size, dst, src);
|
|
res := TRUE
|
|
END
|
|
|
|
RETURN res
|
|
END _arrcpy;
|
|
|
|
|
|
PROCEDURE _strcpy* (chr_size, len_src, src, len_dst, dst: INTEGER);
|
|
BEGIN
|
|
_move(MIN(len_dst, len_src) * chr_size, dst, src)
|
|
END _strcpy;
|
|
|
|
|
|
PROCEDURE _new* (t, size: INTEGER; VAR p: INTEGER);
|
|
VAR
|
|
ptr: INTEGER;
|
|
|
|
BEGIN
|
|
ptr := Heap;
|
|
IF ptr + size < Trap.sp() - 64 THEN
|
|
INC(Heap, size);
|
|
p := ptr + WORD;
|
|
SYSTEM.PUT(ptr, t);
|
|
INC(ptr, WORD);
|
|
DEC(size, WORD);
|
|
WHILE size > 0 DO
|
|
SYSTEM.PUT(ptr, 0);
|
|
INC(ptr, WORD);
|
|
DEC(size, WORD)
|
|
END
|
|
ELSE
|
|
p := 0
|
|
END
|
|
END _new;
|
|
|
|
|
|
PROCEDURE _guard* (t, p: INTEGER): BOOLEAN;
|
|
VAR
|
|
_type: INTEGER;
|
|
|
|
BEGIN
|
|
SYSTEM.GET(p, p);
|
|
IF p # 0 THEN
|
|
SYSTEM.GET(p - WORD, _type);
|
|
WHILE (_type # t) & (_type # 0) DO
|
|
SYSTEM.GET(Types + _type * WORD, _type)
|
|
END
|
|
ELSE
|
|
_type := t
|
|
END
|
|
|
|
RETURN _type = t
|
|
END _guard;
|
|
|
|
|
|
PROCEDURE _is* (t, p: INTEGER): BOOLEAN;
|
|
VAR
|
|
_type: INTEGER;
|
|
|
|
BEGIN
|
|
_type := 0;
|
|
IF p # 0 THEN
|
|
SYSTEM.GET(p - WORD, _type);
|
|
WHILE (_type # t) & (_type # 0) DO
|
|
SYSTEM.GET(Types + _type * WORD, _type)
|
|
END
|
|
END
|
|
|
|
RETURN _type = t
|
|
END _is;
|
|
|
|
|
|
PROCEDURE _guardrec* (t0, t1: INTEGER): BOOLEAN;
|
|
BEGIN
|
|
WHILE (t1 # t0) & (t1 # 0) DO
|
|
SYSTEM.GET(Types + t1 * WORD, t1)
|
|
END
|
|
|
|
RETURN t1 = t0
|
|
END _guardrec;
|
|
|
|
|
|
PROCEDURE _init* (tcount, heap, types: INTEGER);
|
|
BEGIN
|
|
Heap := heap;
|
|
TypesCount := tcount;
|
|
Types := types
|
|
END _init;
|
|
|
|
|
|
END RTL. |