436 lines
12 KiB
Plaintext
436 lines
12 KiB
Plaintext
(*
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BSD 2-Clause License
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Copyright (c) 2018-2019, 2022 Anton Krotov
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All rights reserved.
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*)
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MODULE KOSAPI;
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IMPORT SYSTEM;
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TYPE
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STRING = ARRAY 1024 OF CHAR;
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VAR
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DLL_INIT: PROCEDURE [stdcall] (entry: INTEGER);
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PROCEDURE [stdcall-] sysfunc1* (arg1: INTEGER): 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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0CDH, 040H, (* int 64 *)
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0C9H, (* leave *)
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0C2H, 004H, 000H (* ret 4 *)
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)
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RETURN 0
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END sysfunc1;
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PROCEDURE [stdcall-] sysfunc2* (arg1, arg2: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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0CDH, 040H, (* int 64 *)
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05BH, (* pop ebx *)
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0C9H, (* leave *)
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0C2H, 008H, 000H (* ret 8 *)
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)
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RETURN 0
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END sysfunc2;
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PROCEDURE [stdcall-] sysfunc3* (arg1, arg2, arg3: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
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0CDH, 040H, (* int 64 *)
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05BH, (* pop ebx *)
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0C9H, (* leave *)
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0C2H, 00CH, 000H (* ret 12 *)
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)
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RETURN 0
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END sysfunc3;
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PROCEDURE [stdcall-] sysfunc4* (arg1, arg2, arg3, arg4: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
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08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
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0CDH, 040H, (* int 64 *)
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05BH, (* pop ebx *)
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0C9H, (* leave *)
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0C2H, 010H, 000H (* ret 16 *)
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)
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RETURN 0
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END sysfunc4;
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PROCEDURE [stdcall-] sysfunc5* (arg1, arg2, arg3, arg4, arg5: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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056H, (* push esi *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
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08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
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08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
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0CDH, 040H, (* int 64 *)
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05EH, (* pop esi *)
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05BH, (* pop ebx *)
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0C9H, (* leave *)
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0C2H, 014H, 000H (* ret 20 *)
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)
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RETURN 0
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END sysfunc5;
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PROCEDURE [stdcall-] sysfunc6* (arg1, arg2, arg3, arg4, arg5, arg6: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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056H, (* push esi *)
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057H, (* push edi *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
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08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
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08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
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08BH, 07DH, 01CH, (* mov edi, dword [ebp + 28] *)
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0CDH, 040H, (* int 64 *)
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05FH, (* pop edi *)
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05EH, (* pop esi *)
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05BH, (* pop ebx *)
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0C9H, (* leave *)
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0C2H, 018H, 000H (* ret 24 *)
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)
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RETURN 0
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END sysfunc6;
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PROCEDURE [stdcall-] sysfunc7* (arg1, arg2, arg3, arg4, arg5, arg6, arg7: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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056H, (* push esi *)
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057H, (* push edi *)
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055H, (* push ebp *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
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08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
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08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
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08BH, 07DH, 01CH, (* mov edi, dword [ebp + 28] *)
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08BH, 06DH, 020H, (* mov ebp, dword [ebp + 32] *)
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0CDH, 040H, (* int 64 *)
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05DH, (* pop ebp *)
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05FH, (* pop edi *)
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05EH, (* pop esi *)
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05BH, (* pop ebx *)
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0C9H, (* leave *)
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0C2H, 01CH, 000H (* ret 28 *)
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)
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RETURN 0
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END sysfunc7;
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PROCEDURE [stdcall-] sysfunc22* (arg1, arg2: INTEGER; VAR res2: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(
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053H, (* push ebx *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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0CDH, 040H, (* int 64 *)
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08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
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089H, 019H, (* mov dword [ecx], ebx *)
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05BH, (* pop ebx *)
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0C9H, (* leave *)
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0C2H, 00CH, 000H (* ret 12 *)
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)
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RETURN 0
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END sysfunc22;
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PROCEDURE mem_commit (adr, size: INTEGER);
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VAR
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tmp: INTEGER;
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BEGIN
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FOR tmp := adr TO adr + size - 1 BY 4096 DO
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SYSTEM.PUT(tmp, 0)
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END
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END mem_commit;
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PROCEDURE [stdcall] malloc* (size: INTEGER): INTEGER;
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VAR
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ptr: INTEGER;
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BEGIN
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SYSTEM.CODE(060H); (* pusha *)
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IF sysfunc2(18, 16) > ASR(size, 10) THEN
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ptr := sysfunc3(68, 12, size);
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IF ptr # 0 THEN
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mem_commit(ptr, size)
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END
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ELSE
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ptr := 0
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END;
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SYSTEM.CODE(061H) (* popa *)
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RETURN ptr
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END malloc;
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PROCEDURE [stdcall] free* (ptr: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(060H); (* pusha *)
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IF ptr # 0 THEN
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ptr := sysfunc3(68, 13, ptr)
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END;
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SYSTEM.CODE(061H) (* popa *)
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RETURN 0
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END free;
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PROCEDURE [stdcall] realloc* (ptr, size: INTEGER): INTEGER;
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BEGIN
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SYSTEM.CODE(060H); (* pusha *)
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ptr := sysfunc4(68, 20, size, ptr);
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SYSTEM.CODE(061H) (* popa *)
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RETURN ptr
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END realloc;
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PROCEDURE AppAdr (): INTEGER;
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VAR
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buf: ARRAY 1024 OF CHAR;
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a: INTEGER;
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BEGIN
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a := sysfunc3(9, SYSTEM.ADR(buf), -1);
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SYSTEM.GET(SYSTEM.ADR(buf) + 22, a)
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RETURN a
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END AppAdr;
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PROCEDURE GetCommandLine* (): INTEGER;
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VAR
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param: INTEGER;
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BEGIN
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SYSTEM.GET(28 + AppAdr(), param)
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RETURN param
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END GetCommandLine;
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PROCEDURE GetName* (): INTEGER;
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VAR
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name: INTEGER;
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BEGIN
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SYSTEM.GET(32 + AppAdr(), name)
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RETURN name
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END GetName;
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PROCEDURE [stdcall] dll_init2 (arg1, arg2, arg3, arg4, arg5: INTEGER);
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BEGIN
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SYSTEM.CODE(
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060H, (* pusha *)
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08BH, 045H, 008H, (* mov eax, dword [ebp + 8] *)
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08BH, 05DH, 00CH, (* mov ebx, dword [ebp + 12] *)
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08BH, 04DH, 010H, (* mov ecx, dword [ebp + 16] *)
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08BH, 055H, 014H, (* mov edx, dword [ebp + 20] *)
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08BH, 075H, 018H, (* mov esi, dword [ebp + 24] *)
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0FFH, 0D6H, (* call esi *)
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061H, (* popa *)
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0C9H, (* leave *)
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0C2H, 014H, 000H (* ret 20 *)
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)
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END dll_init2;
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PROCEDURE GetProcAdr* (name: ARRAY OF CHAR; lib: INTEGER): INTEGER;
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VAR
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cur, procname, adr: INTEGER;
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PROCEDURE streq (str1, str2: INTEGER): BOOLEAN;
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VAR
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c1, c2: CHAR;
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BEGIN
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REPEAT
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SYSTEM.GET(str1, c1);
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SYSTEM.GET(str2, c2);
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INC(str1);
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INC(str2)
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UNTIL (c1 # c2) OR (c1 = 0X)
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RETURN c1 = c2
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END streq;
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BEGIN
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adr := 0;
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IF (lib # 0) & (name # "") THEN
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cur := lib;
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REPEAT
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SYSTEM.GET(cur, procname);
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INC(cur, 8)
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UNTIL (procname = 0) OR streq(procname, SYSTEM.ADR(name[0]));
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IF procname # 0 THEN
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SYSTEM.GET(cur - 4, adr)
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END
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END
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RETURN adr
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END GetProcAdr;
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PROCEDURE init (dll: INTEGER);
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VAR
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lib_init: INTEGER;
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BEGIN
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lib_init := GetProcAdr("lib_init", dll);
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IF lib_init # 0 THEN
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DLL_INIT(lib_init)
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END;
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lib_init := GetProcAdr("START", dll);
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IF lib_init # 0 THEN
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DLL_INIT(lib_init)
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END
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END init;
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PROCEDURE OutChar* (c: CHAR);
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BEGIN
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sysfunc3(63, 1, ORD(c))
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END OutChar;
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PROCEDURE OutLn*;
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BEGIN
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OutChar(0DX);
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OutChar(0AX)
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END OutLn;
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PROCEDURE OutString (s: ARRAY OF CHAR);
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VAR
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i: INTEGER;
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BEGIN
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i := 0;
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WHILE (i < LEN(s)) & (s[i] # 0X) DO
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OutChar(s[i]);
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INC(i)
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END
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END OutString;
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PROCEDURE imp_error (lib, proc: STRING);
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BEGIN
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OutString("import error: ");
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IF proc = "" THEN
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OutString("can't load '")
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ELSE
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OutString("not found '"); OutString(proc); OutString("' in '")
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END;
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OutString(lib);
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OutString("'" + 0DX + 0AX)
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END imp_error;
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PROCEDURE GetStr (adr, i: INTEGER; VAR str: STRING);
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VAR
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c: CHAR;
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BEGIN
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REPEAT
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SYSTEM.GET(adr, c); INC(adr);
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str[i] := c; INC(i)
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UNTIL c = 0X
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END GetStr;
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PROCEDURE [stdcall-] dll_Load* (import_table: INTEGER): INTEGER;
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CONST
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path = "/sys/lib/";
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VAR
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imp, lib, exp, proc, pathLen: INTEGER;
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procname, libname: STRING;
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BEGIN
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SYSTEM.CODE(060H); (* pusha *)
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libname := path;
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pathLen := LENGTH(libname);
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SYSTEM.GET(import_table, imp);
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WHILE imp # 0 DO
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SYSTEM.GET(import_table + 4, lib);
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GetStr(lib, pathLen, libname);
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exp := sysfunc3(68, 19, SYSTEM.ADR(libname[0]));
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IF exp = 0 THEN
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imp_error(libname, "")
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ELSE
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REPEAT
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SYSTEM.GET(imp, proc);
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IF proc # 0 THEN
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GetStr(proc, 0, procname);
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proc := GetProcAdr(procname, exp);
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IF proc # 0 THEN
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SYSTEM.PUT(imp, proc)
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ELSE
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proc := 1;
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imp_error(libname, procname)
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END;
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INC(imp, 4)
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END
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UNTIL proc = 0;
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init(exp)
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END;
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INC(import_table, 8);
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SYSTEM.GET(import_table, imp);
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END;
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SYSTEM.CODE(061H) (* popa *)
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RETURN 0
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END dll_Load;
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PROCEDURE [stdcall] dll_Init (entry: INTEGER);
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BEGIN
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SYSTEM.CODE(060H); (* pusha *)
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IF entry # 0 THEN
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dll_init2(SYSTEM.ADR(malloc), SYSTEM.ADR(free), SYSTEM.ADR(realloc), SYSTEM.ADR(dll_Load), entry)
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END;
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SYSTEM.CODE(061H); (* popa *)
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END dll_Init;
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PROCEDURE LoadLib* (name: ARRAY OF CHAR): INTEGER;
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VAR
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Lib: INTEGER;
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BEGIN
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DLL_INIT := dll_Init;
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Lib := sysfunc3(68, 19, SYSTEM.ADR(name[0]));
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IF Lib # 0 THEN
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init(Lib)
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END
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RETURN Lib
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END LoadLib;
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PROCEDURE _init* (import_table: INTEGER);
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BEGIN
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DLL_INIT := dll_Init;
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dll_Load(import_table)
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END _init;
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END KOSAPI. |