685 lines
28 KiB
NASM
685 lines
28 KiB
NASM
;;================================================================================================;;
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;;//// libini_p.asm //// (c) mike.dld, 2006-2008 /////////////////////////////////////////////////;;
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;;================================================================================================;;
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;; ;;
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;; This file is part of Common development libraries (Libs-Dev). ;;
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;; ;;
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;; Libs-Dev is free software: you can redistribute it and/or modify it under the terms of the GNU ;;
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;; Lesser General Public License as published by the Free Software Foundation, either version 2.1 ;;
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;; of the License, or (at your option) any later version. ;;
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;; ;;
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;; Libs-Dev is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without ;;
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;; even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;;
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;; Lesser General Public License for more details. ;;
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;; ;;
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;; You should have received a copy of the GNU Lesser General Public License along with Libs-Dev. ;;
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;; If not, see <http://www.gnu.org/licenses/>. ;;
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;; ;;
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;;================================================================================================;;
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mem.alloc dd ?
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mem.free dd ?
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mem.realloc dd ?
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dll.load dd ?
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;;================================================================================================;;
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proc libini._.init ;//////////////////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? Library entry point (called after library load) ;;
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;;------------------------------------------------------------------------------------------------;;
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;> eax = memory allocation routine <mem.alloc*> ;;
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;> ebx = memory freeing routine <mem.free*> ;;
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;> ecx = memory reallocation routine <mem.realloc*> ;;
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;> edx = library loading routine <dll.load*> ;;
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;;------------------------------------------------------------------------------------------------;;
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;< eax = 1 (fail) / 0 (ok) (library initialization result) ;;
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;;================================================================================================;;
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mov [mem.alloc], eax
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mov [mem.free], ebx
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mov [mem.realloc], ecx
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mov [dll.load], edx
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invoke dll.load, @IMPORT
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or eax, eax
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jz .ok
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xor eax, eax
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inc eax
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ret
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.ok: xor eax,eax
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ret
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endp
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;;================================================================================================;;
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proc libini._.unget_char _f ;/////////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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push eax ecx
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mov ecx, [_f]
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inc [ecx + IniFile.cnt]
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dec esi
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mov eax, [ecx + IniFile.bsize]
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cmp [ecx + IniFile.cnt], eax
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jle @f
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stdcall libini._.unload_block, [_f]
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@@: pop ecx eax
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ret
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endp
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;;================================================================================================;;
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proc libini._.get_char _f ;///////////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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mov ecx, [_f]
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dec [ecx + IniFile.cnt]
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jns @f
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stdcall libini._.preload_block, [_f]
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dec [ecx + IniFile.cnt]
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@@: lodsb
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ret
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endp
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;;================================================================================================;;
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proc libini._.skip_nonblanks _f ;/////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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mov ecx, [_f]
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@@: stdcall libini._.get_char, [_f]
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cmp al, 32
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je @b
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cmp al, 13
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je @b
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cmp al, 10
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je @b
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cmp al, 9
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je @b
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cmp al, ini.COMMENT_CHAR
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jne @f
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stdcall libini._.skip_line, [_f]
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jmp @b
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@@: stdcall libini._.unget_char, [_f]
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ret
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endp
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;;================================================================================================;;
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proc libini._.skip_spaces _f ;////////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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mov ecx, [_f]
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@@: stdcall libini._.get_char, [_f]
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cmp al, 32
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je @b
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cmp al, 9
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je @b
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@@: stdcall libini._.unget_char, [_f]
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ret
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endp
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;;================================================================================================;;
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proc libini._.skip_line _f ;//////////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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mov ecx, [_f]
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@@: stdcall libini._.get_char, [_f]
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or al, al
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jz @f
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cmp al, 13
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je @f
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cmp al, 10
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jne @b
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@@: stdcall libini._.unget_char, [_f]
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ret
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endp
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;;================================================================================================;;
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proc libini._.unload_block _f ;///////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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push eax ebx ecx
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mov ebx, [_f]
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mov eax, [ebx + IniFile.pos]
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add eax, -ini.BLOCK_SIZE
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invoke file.seek, [ebx + IniFile.fh], eax, SEEK_SET
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stdcall libini._.preload_block, ebx
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add esi, eax
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mov [ebx + IniFile.cnt], 0
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pop ecx ebx eax
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ret
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endp
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;;================================================================================================;;
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proc libini._.preload_block _f ;//////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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push eax ebx ecx
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mov ebx, [_f]
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@@: mov esi, [ebx + IniFile.buf]
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push edi
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mov edi, esi
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mov ecx, ini.BLOCK_SIZE / 4
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xor eax, eax
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rep stosd
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pop edi
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invoke file.tell, [ebx + IniFile.fh]
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mov [ebx + IniFile.pos], eax
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invoke file.read, [ebx + IniFile.fh], esi, ini.BLOCK_SIZE
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mov esi,[ebx + IniFile.buf]
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cmp eax,ini.BLOCK_SIZE
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jl @f
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@@: mov [ebx + IniFile.cnt], eax
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mov [ebx + IniFile.bsize], eax
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pop ecx ebx eax
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ret
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endp
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;;================================================================================================;;
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proc libini._.reload_block _f ;///////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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push eax ebx ecx
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mov ebx, [_f]
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push [ebx + IniFile.bsize]
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push esi [ebx + IniFile.cnt]
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invoke file.seek, [ebx + IniFile.fh], [ebx + IniFile.pos], SEEK_SET
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stdcall libini._.preload_block, ebx
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pop [ebx + IniFile.cnt] esi
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pop eax
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sub eax,[ebx + IniFile.bsize]
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sub [ebx + IniFile.cnt], eax
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pop ecx ebx eax
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ret
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endp
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; f_info - contains current file block number
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; esi - position in block from where to shift
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; ecx - number of bytes to shift by
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;;================================================================================================;;
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proc libini._.shift_content _f, _delta ;//////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? Shift file content starting from cursor position (~ delete) ;;
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;? Content is copied by 'delta' bytes up/down ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< eax = -1 (fail) / 0 (ok) ;;
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;;================================================================================================;;
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locals
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buf dd ?
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endl
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xor eax, eax
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cmp [_delta], 0
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je .skip
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push ebx ecx
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invoke mem.alloc, ini.BLOCK_SIZE
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or eax, eax
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jz .fail
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mov [buf], eax
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cmp [_delta], 0
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jl .down
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mov ebx, [_f]
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mov ecx, [ebx + IniFile.cnt]
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mov ebx, [ebx + IniFile.fh]
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invoke file.tell, ebx
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sub eax, ecx
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invoke file.seek, ebx, eax, SEEK_SET
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@@: invoke file.seek, ebx, [_delta], SEEK_CUR
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invoke file.eof?, ebx
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or eax, eax
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jnz .done
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invoke file.read, ebx, [buf], ini.BLOCK_SIZE
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mov ecx, eax
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mov eax, [_delta]
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neg eax
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sub eax, ecx
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invoke file.seek, ebx, eax, SEEK_CUR
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push ecx
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invoke file.write, ebx, [buf], ecx
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pop ecx
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cmp eax, ecx
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jz @b
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.fail:
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or eax, -1
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pop ecx ebx
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ret
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.done:
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mov eax, [_delta]
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neg eax
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invoke file.seek, ebx, eax, SEEK_CUR
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invoke file.seteof, ebx
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stdcall libini._.reload_block, [_f]
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invoke mem.free, [buf]
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pop ecx ebx
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.skip:
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ret
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.down:
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neg [_delta]
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mov ebx, [_f]
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mov ecx, [ebx + IniFile.cnt]
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mov ebx, [ebx + IniFile.fh]
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invoke file.tell, ebx
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sub eax, ecx
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lea edx, [eax - 1]
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push edx
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@@: invoke file.seek, ebx, edx, SEEK_SET
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invoke file.eof?, ebx
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or eax, eax
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jnz @f
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add edx, ini.BLOCK_SIZE
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jmp @b
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@@: cmp edx, [esp]
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je .skip.2
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add edx, -ini.BLOCK_SIZE
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cmp edx, [esp]
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jl @f
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invoke file.seek, ebx, edx, SEEK_SET
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invoke file.read, ebx, [buf], ini.BLOCK_SIZE
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mov ecx, eax
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mov eax, [_delta]
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sub eax, ecx
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invoke file.seek, ebx, eax, SEEK_CUR
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invoke file.write, ebx, [buf], ecx
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jmp @b
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@@:
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.skip.2:
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add esp, 4
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stdcall libini._.reload_block, [_f]
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invoke mem.free, [buf]
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pop ecx ebx
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ret
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endp
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;;================================================================================================;;
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proc libini._.get_value_length _f ;///////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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push ebx ecx edx eax
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mov ebx, [_f]
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invoke file.tell, [ebx + IniFile.fh]
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push esi [ebx + IniFile.cnt] [ebx + IniFile.pos]
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sub eax, [ebx + IniFile.cnt]
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mov edx, eax
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stdcall libini._.skip_line, [_f]
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invoke file.tell, [ebx + IniFile.fh]
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sub eax, [ebx + IniFile.cnt]
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sub eax, edx
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mov [esp + 4 * 3], eax
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pop eax
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invoke file.seek, [ebx + IniFile.fh], eax, SEEK_SET
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stdcall libini._.preload_block, [_f]
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pop [ebx + IniFile.cnt] esi
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pop eax edx ecx ebx
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ret
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endp
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;;================================================================================================;;
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proc libini._.string_copy ;///////////////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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@@: lodsb
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or al, al
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jz @f
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stosb
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jmp @b
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@@: ret
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endp
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;;================================================================================================;;
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proc libini._.find_next_section _f ;//////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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push ebx edi
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@@: stdcall libini._.skip_nonblanks, [_f]
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cmp al, '['
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je @f
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or al, al
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jz .exit_error
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stdcall libini._.skip_line, [_f]
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or al, al
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jz .exit_error
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jmp @b
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@@:
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pop edi ebx
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xor eax, eax
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ret
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.exit_error:
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pop edi ebx
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or eax, -1
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ret
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endp
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;;================================================================================================;;
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proc libini._.find_section _f, _sec_name ;////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? Find section in file ;;
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;? Search is performed from the beginning of file ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< eax = -1 (fail) / 0 (ok) ;;
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;< [_f.pos] = new cursor position (right after ']' char if eax = 0, at the end of file otherwise) ;;
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;;================================================================================================;;
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push ebx edi
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mov ecx, [_f]
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invoke file.seek, [ecx + IniFile.fh], 0, SEEK_SET
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stdcall libini._.preload_block, [_f]
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.next_section:
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stdcall libini._.find_next_section, [_f]
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or eax, eax
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jnz .exit_error
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stdcall libini._.get_char, [_f]
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stdcall libini._.skip_spaces, [_f]
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mov edi, [_sec_name]
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@@: stdcall libini._.get_char, [_f]
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cmp al, ']'
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je @f
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or al, al
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jz .exit_error
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cmp al, 13
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je .next_section
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cmp al, 10
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je .next_section
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scasb
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je @b
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cmp byte[edi - 1], 0
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jne .next_section
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dec edi
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stdcall libini._.unget_char, [_f]
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stdcall libini._.skip_spaces, [_f]
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stdcall libini._.get_char, [_f]
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cmp al, ']'
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jne .next_section
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@@:
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cmp byte[edi], 0
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jne .next_section
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pop edi ebx
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xor eax, eax
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ret
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.exit_error:
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pop edi ebx
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or eax, -1
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ret
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endp
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;;================================================================================================;;
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proc libini._.find_key _f, _key_name ;////////////////////////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? Find key in section ;;
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;? Search is performed within current section starting from cursor position ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< eax = -1 (fail) / 0 (ok) ;;
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;< [_f.pos] = new cursor position (right after '=' char if eax = 0, at the end of file or right ;;
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;< before '[' char otherwise) ;;
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;;================================================================================================;;
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push ebx edi
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.next_value:
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mov edi, [_key_name]
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stdcall libini._.skip_line, [_f]
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stdcall libini._.skip_nonblanks, [_f]
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or al, al
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jz .exit_error
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cmp al, '['
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je .exit_error
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@@: stdcall libini._.get_char, [_f]
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or al, al
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jz .exit_error
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cmp al, '='
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je @f
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scasb
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je @b
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cmp byte[edi - 1], 0
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jne .next_value
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dec edi
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stdcall libini._.unget_char, [_f]
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stdcall libini._.skip_spaces, [_f]
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stdcall libini._.get_char, [_f]
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cmp al, '='
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je @f
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jmp .next_value
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@@:
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cmp byte[edi], 0
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jne .next_value
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pop edi ebx
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xor eax, eax
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ret
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.exit_error:
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pop edi ebx
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or eax, -1
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ret
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endp
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;;================================================================================================;;
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proc libini._.low.read_value _f_addr, _buffer, _buf_len ;/////////////////////////////////////////;;
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;;------------------------------------------------------------------------------------------------;;
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;? --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;> --- TBD --- ;;
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;;------------------------------------------------------------------------------------------------;;
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;< --- TBD --- ;;
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;;================================================================================================;;
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push edi eax
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mov edi, [_buffer]
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stdcall libini._.skip_spaces, [_f_addr]
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@@: dec [_buf_len]
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jz @f
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stdcall libini._.get_char, [_f_addr]
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cmp al, 13
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je @f
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cmp al, 10
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je @f
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stosb
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or al, al
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jnz @b
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@@: stdcall libini._.unget_char, [_f_addr]
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mov byte[edi], 0
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dec edi
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@@: cmp edi, [_buffer]
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jb @f
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cmp byte[edi], 32
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ja @f
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mov byte[edi], 0
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dec edi
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jmp @b
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@@: pop eax edi
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ret
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endp
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;;================================================================================================;;
|
|
proc libini._.str_to_int ;////////////////////////////////////////////////////////////////////////;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;? --- TBD --- ;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;> esi = string buffer address ;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;< eax = binary number representation (no overflow checks made) ;;
|
|
;;================================================================================================;;
|
|
push edx
|
|
|
|
xor eax, eax
|
|
xor edx, edx
|
|
|
|
@@: lodsb
|
|
cmp al, '0'
|
|
jb @f
|
|
cmp al, '9'
|
|
ja @f
|
|
add eax, -'0'
|
|
imul edx, 10
|
|
add edx, eax
|
|
jmp @b
|
|
|
|
@@: dec esi
|
|
mov eax, edx
|
|
pop edx
|
|
ret
|
|
endp
|
|
|
|
;;================================================================================================;;
|
|
proc libini._.int_to_str ;////////////////////////////////////////////////////////////////////////;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;? --- TBD --- ;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;> eax = number to convert ;;
|
|
;> ecx = base ;;
|
|
;> edi = string buffer address ;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;< --- TBD --- ;;
|
|
;;================================================================================================;;
|
|
push ecx edx
|
|
|
|
or eax, eax
|
|
jns @f
|
|
mov byte[edi], '-'
|
|
inc edi
|
|
@@: call .recurse
|
|
pop edx ecx
|
|
ret
|
|
|
|
.recurse:
|
|
cmp eax,ecx
|
|
jb @f
|
|
xor edx,edx
|
|
div ecx
|
|
push edx
|
|
call .recurse
|
|
pop eax
|
|
@@: cmp al,10
|
|
sbb al,0x69
|
|
das
|
|
stosb
|
|
retn
|
|
endp
|
|
|
|
;;================================================================================================;;
|
|
proc libini._.ascii_to_scan ;_ascii_code ;////////////////////////////////////////////////////////;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;? Translate ASCII code of key to scancode using standard mapping from keymap.key ;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;> _ascii_code = [esp+4] = ASCII code to convert ;;
|
|
;;------------------------------------------------------------------------------------------------;;
|
|
;< eax = 0 (error) / scancode (success) ;;
|
|
;;================================================================================================;;
|
|
; /sys/keymap.key
|
|
sub esp, 256
|
|
mov eax, esp
|
|
push ebx
|
|
push 'key'
|
|
push 'map.'
|
|
push '/key'
|
|
push '/sys'
|
|
push eax ; buffer in the stack
|
|
push 0x100 ; read 0x100 bytes
|
|
push 0
|
|
push 0 ; from position zero
|
|
push 0 ; subfunction: read
|
|
mov ebx, esp
|
|
push 70
|
|
pop eax
|
|
mcall
|
|
add esp, 36
|
|
pop ebx
|
|
test eax, eax
|
|
jnz .die
|
|
mov al, [esp+256+4] ; get ASCII code
|
|
push edi
|
|
; first keytable - no modifiers pressed
|
|
; check scancodes from 1 to 36h (inclusive)
|
|
lea edi, [esp+4+1]
|
|
mov edx, edi
|
|
mov ecx, 36h
|
|
repnz scasb
|
|
jz .found
|
|
; second keytable - Shift pressed
|
|
lea edi, [esp+4+128+1]
|
|
mov edx, edi
|
|
mov ecx, 36h
|
|
repnz scasb
|
|
jz .found
|
|
pop edi
|
|
.die:
|
|
xor eax, eax
|
|
jmp .ret
|
|
.found:
|
|
mov eax, edi
|
|
sub eax, edx
|
|
pop edi
|
|
.ret:
|
|
add esp, 256
|
|
ret 4
|
|
endp
|