forked from KolibriOS/kolibrios
613 lines
18 KiB
Plaintext
613 lines
18 KiB
Plaintext
(*
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BSD 2-Clause License
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Copyright (c) 2018-2019, Anton Krotov
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All rights reserved.
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*)
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MODULE RTL;
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IMPORT SYSTEM, API;
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CONST
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bit_depth* = 32;
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maxint* = 7FFFFFFFH;
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minint* = 80000000H;
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DLL_PROCESS_ATTACH = 1;
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DLL_THREAD_ATTACH = 2;
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DLL_THREAD_DETACH = 3;
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DLL_PROCESS_DETACH = 0;
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WORD = bit_depth DIV 8;
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MAX_SET = bit_depth - 1;
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TYPE
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DLL_ENTRY* = PROCEDURE (hinstDLL, fdwReason, lpvReserved: INTEGER);
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PROC = PROCEDURE;
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VAR
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name: INTEGER;
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types: INTEGER;
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bits: ARRAY MAX_SET + 1 OF INTEGER;
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dll: RECORD
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process_detach,
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thread_detach,
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thread_attach: DLL_ENTRY
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END;
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fini: PROC;
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PROCEDURE [stdcall] _move* (bytes, dest, source: INTEGER);
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BEGIN
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SYSTEM.CODE(
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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085H, 0C0H, (* test eax, eax *)
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07EH, 019H, (* jle L *)
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0FCH, (* cld *)
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057H, (* push edi *)
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056H, (* push esi *)
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08BH, 075H, 010H, (* mov esi, dword [ebp + 16] *)
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08BH, 07DH, 00CH, (* mov edi, dword [ebp + 12] *)
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089H, 0C1H, (* mov ecx, eax *)
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0C1H, 0E9H, 002H, (* shr ecx, 2 *)
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0F3H, 0A5H, (* rep movsd *)
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089H, 0C1H, (* mov ecx, eax *)
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083H, 0E1H, 003H, (* and ecx, 3 *)
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0F3H, 0A4H, (* rep movsb *)
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05EH, (* pop esi *)
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05FH (* pop edi *)
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(* L: *)
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)
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END _move;
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PROCEDURE [stdcall] _arrcpy* (base_size, len_dst, dst, len_src, src: INTEGER): BOOLEAN;
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VAR
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res: BOOLEAN;
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BEGIN
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IF len_src > len_dst THEN
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res := FALSE
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ELSE
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_move(len_src * base_size, dst, src);
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res := TRUE
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END
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RETURN res
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END _arrcpy;
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PROCEDURE [stdcall] _strcpy* (chr_size, len_src, src, len_dst, dst: INTEGER);
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BEGIN
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_move(MIN(len_dst, len_src) * chr_size, dst, src)
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END _strcpy;
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PROCEDURE [stdcall] _rot* (VAR A: ARRAY OF INTEGER);
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VAR
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i, n, k: INTEGER;
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BEGIN
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k := LEN(A) - 1;
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n := A[0];
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i := 0;
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WHILE i < k DO
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A[i] := A[i + 1];
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INC(i)
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END;
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A[k] := n
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END _rot;
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PROCEDURE [stdcall] _set* (b, a: INTEGER): INTEGER;
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BEGIN
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IF (a <= b) & (a <= MAX_SET) & (b >= 0) THEN
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IF b > MAX_SET THEN
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b := MAX_SET
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END;
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IF a < 0 THEN
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a := 0
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END;
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a := LSR(ASR(minint, b - a), MAX_SET - b)
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ELSE
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a := 0
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END
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RETURN a
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END _set;
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PROCEDURE [stdcall] _set1* (a: INTEGER): INTEGER;
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BEGIN
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IF ASR(a, 5) = 0 THEN
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SYSTEM.GET(SYSTEM.ADR(bits[0]) + a * WORD, a)
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ELSE
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a := 0
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END
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RETURN a
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END _set1;
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PROCEDURE [stdcall] _divmod* (y, x: INTEGER); (* (x div y) -> eax; (x mod y) -> edx *)
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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08BH, 045H, 00CH, (* mov eax, dword [ebp + 12] *) (* eax <- x *)
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031H, 0D2H, (* xor edx, edx *)
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085H, 0C0H, (* test eax, eax *)
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074H, 018H, (* je L2 *)
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07FH, 002H, (* jg L1 *)
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0F7H, 0D2H, (* not edx *)
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(* L1: *)
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089H, 0C3H, (* mov ebx, eax *)
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08BH, 04DH, 008H, (* mov ecx, dword [ebp + 8] *) (* ecx <- y *)
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0F7H, 0F9H, (* idiv ecx *)
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085H, 0D2H, (* test edx, edx *)
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074H, 009H, (* je L2 *)
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031H, 0CBH, (* xor ebx, ecx *)
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085H, 0DBH, (* test ebx, ebx *)
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07DH, 003H, (* jge L2 *)
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048H, (* dec eax *)
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001H, 0CAH, (* add edx, ecx *)
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(* L2: *)
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05BH (* pop ebx *)
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)
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END _divmod;
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PROCEDURE [stdcall] _new* (t, size: INTEGER; VAR ptr: INTEGER);
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BEGIN
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ptr := API._NEW(size);
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IF ptr # 0 THEN
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SYSTEM.PUT(ptr, t);
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INC(ptr, WORD)
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END
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END _new;
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PROCEDURE [stdcall] _dispose* (VAR ptr: INTEGER);
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BEGIN
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IF ptr # 0 THEN
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ptr := API._DISPOSE(ptr - WORD)
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END
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END _dispose;
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PROCEDURE [stdcall] _length* (len, str: INTEGER);
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BEGIN
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SYSTEM.CODE(
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08BH, 045H, 00CH, (* mov eax, dword [ebp + 0Ch] *)
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08BH, 04DH, 008H, (* mov ecx, dword [ebp + 08h] *)
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048H, (* dec eax *)
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(* L1: *)
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040H, (* inc eax *)
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080H, 038H, 000H, (* cmp byte [eax], 0 *)
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074H, 003H, (* jz L2 *)
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0E2H, 0F8H, (* loop L1 *)
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040H, (* inc eax *)
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(* L2: *)
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02BH, 045H, 00CH (* sub eax, dword [ebp + 0Ch] *)
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)
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END _length;
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PROCEDURE [stdcall] _lengthw* (len, str: INTEGER);
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BEGIN
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SYSTEM.CODE(
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08BH, 045H, 00CH, (* mov eax, dword [ebp + 0Ch] *)
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08BH, 04DH, 008H, (* mov ecx, dword [ebp + 08h] *)
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048H, (* dec eax *)
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048H, (* dec eax *)
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(* L1: *)
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040H, (* inc eax *)
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040H, (* inc eax *)
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066H, 083H, 038H, 000H, (* cmp word [eax], 0 *)
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074H, 004H, (* jz L2 *)
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0E2H, 0F6H, (* loop L1 *)
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040H, (* inc eax *)
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040H, (* inc eax *)
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(* L2: *)
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02BH, 045H, 00CH, (* sub eax, dword [ebp + 0Ch] *)
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0D1H, 0E8H (* shr eax, 1 *)
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)
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END _lengthw;
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PROCEDURE [stdcall] strncmp (a, b, n: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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056H, (* push esi *)
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057H, (* push edi *)
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053H, (* push ebx *)
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08BH, 075H, 008H, (* mov esi, dword[ebp + 8]; esi <- a *)
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08BH, 07DH, 00CH, (* mov edi, dword[ebp + 12]; edi <- b *)
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08BH, 05DH, 010H, (* mov ebx, dword[ebp + 16]; ebx <- n *)
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031H, 0C9H, (* xor ecx, ecx *)
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031H, 0D2H, (* xor edx, edx *)
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0B8H,
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000H, 000H, 000H, 080H, (* mov eax, minint *)
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(* L1: *)
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085H, 0DBH, (* test ebx, ebx *)
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07EH, 017H, (* jle L3 *)
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08AH, 00EH, (* mov cl, byte[esi] *)
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08AH, 017H, (* mov dl, byte[edi] *)
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046H, (* inc esi *)
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047H, (* inc edi *)
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04BH, (* dec ebx *)
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039H, 0D1H, (* cmp ecx, edx *)
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074H, 006H, (* je L2 *)
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089H, 0C8H, (* mov eax, ecx *)
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029H, 0D0H, (* sub eax, edx *)
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0EBH, 006H, (* jmp L3 *)
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(* L2: *)
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085H, 0C9H, (* test ecx, ecx *)
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075H, 0E7H, (* jne L1 *)
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031H, 0C0H, (* xor eax, eax *)
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(* L3: *)
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05BH, (* pop ebx *)
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05FH, (* pop edi *)
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05EH, (* pop esi *)
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05DH, (* pop ebp *)
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0C2H, 00CH, 000H (* ret 12 *)
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)
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RETURN 0
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END strncmp;
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PROCEDURE [stdcall] strncmpw (a, b, n: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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056H, (* push esi *)
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057H, (* push edi *)
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053H, (* push ebx *)
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08BH, 075H, 008H, (* mov esi, dword[ebp + 8]; esi <- a *)
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08BH, 07DH, 00CH, (* mov edi, dword[ebp + 12]; edi <- b *)
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08BH, 05DH, 010H, (* mov ebx, dword[ebp + 16]; ebx <- n *)
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031H, 0C9H, (* xor ecx, ecx *)
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031H, 0D2H, (* xor edx, edx *)
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0B8H,
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000H, 000H, 000H, 080H, (* mov eax, minint *)
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(* L1: *)
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085H, 0DBH, (* test ebx, ebx *)
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07EH, 01BH, (* jle L3 *)
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066H, 08BH, 00EH, (* mov cx, word[esi] *)
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066H, 08BH, 017H, (* mov dx, word[edi] *)
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046H, (* inc esi *)
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046H, (* inc esi *)
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047H, (* inc edi *)
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047H, (* inc edi *)
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04BH, (* dec ebx *)
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039H, 0D1H, (* cmp ecx, edx *)
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074H, 006H, (* je L2 *)
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089H, 0C8H, (* mov eax, ecx *)
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029H, 0D0H, (* sub eax, edx *)
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0EBH, 006H, (* jmp L3 *)
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(* L2: *)
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085H, 0C9H, (* test ecx, ecx *)
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075H, 0E3H, (* jne L1 *)
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031H, 0C0H, (* xor eax, eax *)
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(* L3: *)
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05BH, (* pop ebx *)
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05FH, (* pop edi *)
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05EH, (* pop esi *)
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05DH, (* pop ebp *)
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0C2H, 00CH, 000H (* ret 12 *)
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)
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RETURN 0
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END strncmpw;
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PROCEDURE [stdcall] _strcmp* (op, len2, str2, len1, str1: INTEGER): BOOLEAN;
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VAR
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res: INTEGER;
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bRes: BOOLEAN;
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c: CHAR;
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BEGIN
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res := strncmp(str1, str2, MIN(len1, len2));
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IF res = minint THEN
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IF len1 > len2 THEN
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SYSTEM.GET(str1 + len2, c);
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res := ORD(c)
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ELSIF len1 < len2 THEN
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SYSTEM.GET(str2 + len1, c);
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res := -ORD(c)
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ELSE
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res := 0
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END
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END;
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CASE op OF
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|0: bRes := res = 0
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|1: bRes := res # 0
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|2: bRes := res < 0
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|3: bRes := res <= 0
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|4: bRes := res > 0
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|5: bRes := res >= 0
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END
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RETURN bRes
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END _strcmp;
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PROCEDURE [stdcall] _strcmpw* (op, len2, str2, len1, str1: INTEGER): BOOLEAN;
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VAR
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res: INTEGER;
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bRes: BOOLEAN;
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c: WCHAR;
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BEGIN
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res := strncmpw(str1, str2, MIN(len1, len2));
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IF res = minint THEN
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IF len1 > len2 THEN
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SYSTEM.GET(str1 + len2 * 2, c);
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res := ORD(c)
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ELSIF len1 < len2 THEN
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SYSTEM.GET(str2 + len1 * 2, c);
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res := -ORD(c)
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ELSE
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res := 0
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END
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END;
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CASE op OF
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|0: bRes := res = 0
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|1: bRes := res # 0
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|2: bRes := res < 0
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|3: bRes := res <= 0
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|4: bRes := res > 0
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|5: bRes := res >= 0
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END
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RETURN bRes
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END _strcmpw;
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PROCEDURE PCharToStr (pchar: INTEGER; VAR s: ARRAY OF CHAR);
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VAR
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c: CHAR;
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i: INTEGER;
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BEGIN
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i := 0;
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REPEAT
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SYSTEM.GET(pchar, c);
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s[i] := c;
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INC(pchar);
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INC(i)
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UNTIL c = 0X
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END PCharToStr;
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PROCEDURE IntToStr (x: INTEGER; VAR str: ARRAY OF CHAR);
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VAR
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i, a, b: INTEGER;
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c: CHAR;
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BEGIN
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i := 0;
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REPEAT
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str[i] := CHR(x MOD 10 + ORD("0"));
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x := x DIV 10;
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INC(i)
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UNTIL x = 0;
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a := 0;
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b := i - 1;
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WHILE a < b DO
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c := str[a];
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str[a] := str[b];
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str[b] := c;
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INC(a);
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DEC(b)
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END;
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str[i] := 0X
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END IntToStr;
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PROCEDURE append (VAR s1: ARRAY OF CHAR; s2: ARRAY OF CHAR);
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VAR
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n1, n2, i, j: INTEGER;
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BEGIN
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n1 := LENGTH(s1);
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n2 := LENGTH(s2);
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ASSERT(n1 + n2 < LEN(s1));
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i := 0;
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j := n1;
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WHILE i < n2 DO
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s1[j] := s2[i];
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INC(i);
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INC(j)
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END;
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s1[j] := 0X
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END append;
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PROCEDURE [stdcall] _error* (module, err, line: INTEGER);
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VAR
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s, temp: ARRAY 1024 OF CHAR;
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BEGIN
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s := "";
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CASE err OF
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| 1: append(s, "assertion failure")
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| 2: append(s, "NIL dereference")
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| 3: append(s, "division by zero")
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| 4: append(s, "NIL procedure call")
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| 5: append(s, "type guard error")
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| 6: append(s, "index out of range")
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| 7: append(s, "invalid CASE")
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| 8: append(s, "array assignment error")
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| 9: append(s, "CHR out of range")
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|10: append(s, "WCHR out of range")
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|11: append(s, "BYTE out of range")
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END;
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append(s, API.eol);
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append(s, "module: "); PCharToStr(module, temp); append(s, temp); append(s, API.eol);
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append(s, "line: "); IntToStr(line, temp); append(s, temp);
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API.DebugMsg(SYSTEM.ADR(s[0]), name);
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API.exit_thread(0)
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END _error;
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PROCEDURE [stdcall] _isrec* (t0, t1, r: INTEGER): INTEGER;
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BEGIN
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SYSTEM.GET(t0 + t1 + types, t0)
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RETURN t0 MOD 2
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END _isrec;
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PROCEDURE [stdcall] _is* (t0, p: INTEGER): INTEGER;
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BEGIN
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IF p # 0 THEN
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SYSTEM.GET(p - WORD, p);
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SYSTEM.GET(t0 + p + types, p)
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END
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RETURN p MOD 2
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END _is;
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PROCEDURE [stdcall] _guardrec* (t0, t1: INTEGER): INTEGER;
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BEGIN
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SYSTEM.GET(t0 + t1 + types, t0)
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RETURN t0 MOD 2
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END _guardrec;
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PROCEDURE [stdcall] _guard* (t0, p: INTEGER): INTEGER;
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BEGIN
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SYSTEM.GET(p, p);
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IF p # 0 THEN
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SYSTEM.GET(p - WORD, p);
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SYSTEM.GET(t0 + p + types, p)
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ELSE
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p := 1
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END
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RETURN p MOD 2
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END _guard;
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PROCEDURE [stdcall] _dllentry* (hinstDLL, fdwReason, lpvReserved: INTEGER): INTEGER;
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VAR
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res: INTEGER;
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BEGIN
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CASE fdwReason OF
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|DLL_PROCESS_ATTACH:
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res := 1
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|DLL_THREAD_ATTACH:
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res := 0;
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IF dll.thread_attach # NIL THEN
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dll.thread_attach(hinstDLL, fdwReason, lpvReserved)
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END
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|DLL_THREAD_DETACH:
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res := 0;
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IF dll.thread_detach # NIL THEN
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dll.thread_detach(hinstDLL, fdwReason, lpvReserved)
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END
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|DLL_PROCESS_DETACH:
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res := 0;
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IF dll.process_detach # NIL THEN
|
|
dll.process_detach(hinstDLL, fdwReason, lpvReserved)
|
|
END
|
|
ELSE
|
|
res := 0
|
|
END
|
|
|
|
RETURN res
|
|
END _dllentry;
|
|
|
|
|
|
PROCEDURE [stdcall] _exit* (code: INTEGER);
|
|
BEGIN
|
|
API.exit(code)
|
|
END _exit;
|
|
|
|
|
|
PROCEDURE [stdcall] _init* (modname: INTEGER; tcount, _types: INTEGER; code, param: INTEGER);
|
|
VAR
|
|
t0, t1, i, j: INTEGER;
|
|
|
|
BEGIN
|
|
SYSTEM.CODE(09BH, 0DBH, 0E3H); (* finit *)
|
|
API.init(param, code);
|
|
|
|
types := API._NEW(tcount * tcount + SYSTEM.SIZE(INTEGER));
|
|
ASSERT(types # 0);
|
|
FOR i := 0 TO tcount - 1 DO
|
|
FOR j := 0 TO tcount - 1 DO
|
|
t0 := i; t1 := j;
|
|
|
|
WHILE (t1 # 0) & (t1 # t0) DO
|
|
SYSTEM.GET(_types + t1 * WORD, t1)
|
|
END;
|
|
|
|
SYSTEM.PUT8(i * tcount + j + types, ORD(t0 = t1))
|
|
END
|
|
END;
|
|
|
|
j := 1;
|
|
FOR i := 0 TO MAX_SET DO
|
|
bits[i] := j;
|
|
j := LSL(j, 1)
|
|
END;
|
|
|
|
name := modname;
|
|
|
|
dll.process_detach := NIL;
|
|
dll.thread_detach := NIL;
|
|
dll.thread_attach := NIL;
|
|
|
|
fini := NIL
|
|
END _init;
|
|
|
|
|
|
PROCEDURE [stdcall] _sofinit*;
|
|
BEGIN
|
|
IF fini # NIL THEN
|
|
fini
|
|
END
|
|
END _sofinit;
|
|
|
|
|
|
PROCEDURE SetDll* (process_detach, thread_detach, thread_attach: DLL_ENTRY);
|
|
BEGIN
|
|
dll.process_detach := process_detach;
|
|
dll.thread_detach := thread_detach;
|
|
dll.thread_attach := thread_attach
|
|
END SetDll;
|
|
|
|
|
|
PROCEDURE SetFini* (ProcFini: PROC);
|
|
BEGIN
|
|
fini := ProcFini
|
|
END SetFini;
|
|
|
|
|
|
END RTL.
|