2010-10-01 11:21:55 +02:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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2012-03-15 13:41:29 +01:00
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;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
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2010-10-01 11:21:55 +02:00
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision$
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uglobal
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cd_current_pointer_of_input dd 0
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cd_current_pointer_of_input_2 dd 0
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2012-03-08 09:33:38 +01:00
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cd_mem_location dd 0
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cd_counter_block dd 0
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IDE_Channel_1 db 0
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IDE_Channel_2 db 0
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2010-10-01 11:21:55 +02:00
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endg
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reserve_cd:
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2012-03-08 09:33:38 +01:00
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cli
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cmp [cd_status], 0
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je reserve_ok2
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2010-10-01 11:21:55 +02:00
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2012-03-08 09:33:38 +01:00
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sti
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call change_task
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jmp reserve_cd
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2010-10-01 11:21:55 +02:00
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reserve_ok2:
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2012-03-08 09:33:38 +01:00
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push eax
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mov eax, [CURRENT_TASK]
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shl eax, 5
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mov eax, [eax+CURRENT_TASK+TASKDATA.pid]
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mov [cd_status], eax
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pop eax
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sti
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ret
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2010-10-01 11:21:55 +02:00
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reserve_cd_channel:
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2012-03-08 09:33:38 +01:00
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cmp [ChannelNumber], 1
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jne .IDE_Channel_2
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2010-10-01 11:21:55 +02:00
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.IDE_Channel_1:
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2012-03-08 09:33:38 +01:00
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cli
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cmp [IDE_Channel_1], 0
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je .reserve_ok_1
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sti
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call change_task
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jmp .IDE_Channel_1
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2010-10-01 11:21:55 +02:00
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.IDE_Channel_2:
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2012-03-08 09:33:38 +01:00
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cli
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cmp [IDE_Channel_2], 0
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je .reserve_ok_2
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sti
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call change_task
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jmp .IDE_Channel_2
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2010-10-01 11:21:55 +02:00
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.reserve_ok_1:
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2012-03-08 09:33:38 +01:00
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mov [IDE_Channel_1], 1
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sti
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ret
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2010-10-01 11:21:55 +02:00
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.reserve_ok_2:
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2012-03-08 09:33:38 +01:00
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mov [IDE_Channel_2], 1
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sti
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ret
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2010-10-01 11:21:55 +02:00
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free_cd_channel:
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2012-03-08 09:33:38 +01:00
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cmp [ChannelNumber], 1
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jne .IDE_Channel_2
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2010-10-01 11:21:55 +02:00
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.IDE_Channel_1:
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2012-03-08 09:33:38 +01:00
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mov [IDE_Channel_1], 0
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sti
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ret
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2010-10-01 11:21:55 +02:00
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.IDE_Channel_2:
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2012-03-08 09:33:38 +01:00
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mov [IDE_Channel_2], 0
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sti
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ret
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2010-10-01 11:21:55 +02:00
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uglobal
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cd_status dd 0
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endg
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;----------------------------------------------------------------
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;
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; fs_CdRead - LFN variant for reading CD disk
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;
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; esi points to filename /dir1/dir2/.../dirn/file,0
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; ebx pointer to 64-bit number = first wanted byte, 0+
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; may be ebx=0 - start from first byte
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; ecx number of bytes to read, 0+
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; edx mem location to return data
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;
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; ret ebx = bytes read or 0xffffffff file not found
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; eax = 0 ok read or other = errormsg
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;
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;--------------------------------------------------------------
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fs_CdRead:
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2012-03-08 09:33:38 +01:00
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push edi
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cmp byte [esi], 0
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jnz @f
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2010-10-01 11:21:55 +02:00
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.noaccess:
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2012-03-08 09:33:38 +01:00
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pop edi
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2010-10-01 11:21:55 +02:00
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.noaccess_2:
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2012-03-08 09:33:38 +01:00
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or ebx, -1
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mov eax, ERROR_ACCESS_DENIED
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ret
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2010-10-01 11:21:55 +02:00
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.noaccess_3:
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2012-03-08 09:33:38 +01:00
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pop eax edx ecx edi
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jmp .noaccess_2
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2010-10-01 11:21:55 +02:00
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@@:
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2012-03-08 09:33:38 +01:00
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call cd_find_lfn
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jnc .found
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pop edi
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cmp [DevErrorCode], 0
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jne .noaccess_2
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or ebx, -1
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mov eax, ERROR_FILE_NOT_FOUND
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ret
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2010-10-01 11:21:55 +02:00
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.found:
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2012-03-08 09:33:38 +01:00
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mov edi, [cd_current_pointer_of_input]
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test byte [edi+25], 10b; do not allow read directories
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jnz .noaccess
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test ebx, ebx
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jz .l1
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cmp dword [ebx+4], 0
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jz @f
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xor ebx, ebx
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2010-10-01 11:21:55 +02:00
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.reteof:
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2012-03-08 09:33:38 +01:00
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mov eax, 6; end of file
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pop edi
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ret
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2010-10-01 11:21:55 +02:00
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@@:
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2012-03-08 09:33:38 +01:00
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mov ebx, [ebx]
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2010-10-01 11:21:55 +02:00
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.l1:
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2012-03-08 09:33:38 +01:00
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push ecx edx
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push 0
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2013-05-28 21:09:31 +02:00
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mov eax, [edi+10] ; реальный размер файловой секции
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2012-03-08 09:33:38 +01:00
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sub eax, ebx
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jb .eof
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cmp eax, ecx
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jae @f
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mov ecx, eax
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mov byte [esp], 6
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2010-10-01 11:21:55 +02:00
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@@:
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2012-03-08 09:33:38 +01:00
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mov eax, [edi+2]
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mov [CDSectorAddress], eax
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2010-10-01 11:21:55 +02:00
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; now eax=cluster, ebx=position, ecx=count, edx=buffer for data
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.new_sector:
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2012-03-08 09:33:38 +01:00
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test ecx, ecx
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jz .done
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sub ebx, 2048
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jae .next
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add ebx, 2048
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jnz .incomplete_sector
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cmp ecx, 2048
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jb .incomplete_sector
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2010-10-01 11:21:55 +02:00
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; we may read and memmove complete sector
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2012-03-08 09:33:38 +01:00
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mov [CDDataBuf_pointer], edx
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2013-05-28 21:09:31 +02:00
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call ReadCDWRetr; читаем сектор файла
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2012-03-08 09:33:38 +01:00
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cmp [DevErrorCode], 0
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jne .noaccess_3
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add edx, 2048
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sub ecx, 2048
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2010-10-01 11:21:55 +02:00
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.next:
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2012-03-08 09:33:38 +01:00
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inc dword [CDSectorAddress]
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jmp .new_sector
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2010-10-01 11:21:55 +02:00
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.incomplete_sector:
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; we must read and memmove incomplete sector
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2012-03-08 09:33:38 +01:00
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mov [CDDataBuf_pointer], CDDataBuf
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2013-05-28 21:09:31 +02:00
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call ReadCDWRetr; читаем сектор файла
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2012-03-08 09:33:38 +01:00
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cmp [DevErrorCode], 0
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jne .noaccess_3
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push ecx
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add ecx, ebx
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cmp ecx, 2048
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jbe @f
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mov ecx, 2048
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2010-10-01 11:21:55 +02:00
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@@:
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2012-03-08 09:33:38 +01:00
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sub ecx, ebx
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push edi esi ecx
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mov edi, edx
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lea esi, [CDDataBuf + ebx]
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cld
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rep movsb
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pop ecx esi edi
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add edx, ecx
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sub [esp], ecx
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pop ecx
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xor ebx, ebx
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jmp .next
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2010-10-01 11:21:55 +02:00
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.done:
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2012-03-08 09:33:38 +01:00
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mov ebx, edx
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pop eax edx ecx edi
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sub ebx, edx
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ret
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2010-10-01 11:21:55 +02:00
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.eof:
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2012-03-08 09:33:38 +01:00
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mov ebx, edx
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pop eax edx ecx
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sub ebx, edx
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jmp .reteof
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2010-10-01 11:21:55 +02:00
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;----------------------------------------------------------------
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;
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; fs_CdReadFolder - LFN variant for reading CD disk folder
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;
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; esi points to filename /dir1/dir2/.../dirn/file,0
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; ebx pointer to structure 32-bit number = first wanted block, 0+
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; & flags (bitfields)
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; flags: bit 0: 0=ANSI names, 1=UNICODE names
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; ecx number of blocks to read, 0+
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; edx mem location to return data
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;
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; ret ebx = blocks read or 0xffffffff folder not found
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; eax = 0 ok read or other = errormsg
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;
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;--------------------------------------------------------------
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fs_CdReadFolder:
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2012-03-08 09:33:38 +01:00
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push edi
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call cd_find_lfn
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jnc .found
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pop edi
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cmp [DevErrorCode], 0
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jne .noaccess_1
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or ebx, -1
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mov eax, ERROR_FILE_NOT_FOUND
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ret
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2010-10-01 11:21:55 +02:00
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.found:
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2012-03-08 09:33:38 +01:00
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mov edi, [cd_current_pointer_of_input]
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test byte [edi+25], 10b ; do not allow read directories
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jnz .found_dir
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pop edi
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2010-10-01 11:21:55 +02:00
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.noaccess_1:
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2012-03-08 09:33:38 +01:00
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or ebx, -1
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mov eax, ERROR_ACCESS_DENIED
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ret
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2010-10-01 11:21:55 +02:00
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.found_dir:
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2012-03-08 09:33:38 +01:00
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mov eax, [edi+2] ; eax=cluster
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mov [CDSectorAddress], eax
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2013-05-28 21:09:31 +02:00
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mov eax, [edi+10] ; размер директрории
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2010-10-01 11:21:55 +02:00
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.doit:
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; init header
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2012-03-08 09:33:38 +01:00
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push eax ecx
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mov edi, edx
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mov ecx, 32/4
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xor eax, eax
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rep stosd
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pop ecx eax
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mov byte [edx], 1 ; version
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mov [cd_mem_location], edx
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add [cd_mem_location], 32
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2013-05-28 21:09:31 +02:00
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; начинаем переброску БДВК в УСВК
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2010-10-01 11:21:55 +02:00
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;.mainloop:
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2012-03-08 09:33:38 +01:00
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mov [cd_counter_block], dword 0
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dec dword [CDSectorAddress]
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push ecx
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2010-10-01 11:21:55 +02:00
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.read_to_buffer:
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2012-03-08 09:33:38 +01:00
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inc dword [CDSectorAddress]
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mov [CDDataBuf_pointer], CDDataBuf
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2013-05-28 21:09:31 +02:00
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call ReadCDWRetr ; читаем сектор директории
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2012-03-08 09:33:38 +01:00
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cmp [DevErrorCode], 0
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jne .noaccess_1
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call .get_names_from_buffer
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sub eax, 2048
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2013-05-28 21:09:31 +02:00
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; директория закончилась?
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2012-03-08 09:33:38 +01:00
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ja .read_to_buffer
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mov edi, [cd_counter_block]
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mov [edx+8], edi
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mov edi, [ebx]
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sub [edx+4], edi
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xor eax, eax
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dec ecx
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js @f
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mov al, ERROR_END_OF_FILE
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2010-10-01 11:21:55 +02:00
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@@:
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2012-03-08 09:33:38 +01:00
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pop ecx edi
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mov ebx, [edx+4]
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ret
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2010-10-01 11:21:55 +02:00
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.get_names_from_buffer:
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2012-03-08 09:33:38 +01:00
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mov [cd_current_pointer_of_input_2], CDDataBuf
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push eax esi edi edx
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2010-10-01 11:21:55 +02:00
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.get_names_from_buffer_1:
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2012-03-08 09:33:38 +01:00
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call cd_get_name
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jc .end_buffer
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|
|
inc dword [cd_counter_block]
|
|
|
|
|
mov eax, [cd_counter_block]
|
|
|
|
|
cmp [ebx], eax
|
|
|
|
|
jae .get_names_from_buffer_1
|
|
|
|
|
test ecx, ecx
|
|
|
|
|
jz .get_names_from_buffer_1
|
|
|
|
|
mov edi, [cd_counter_block]
|
|
|
|
|
mov [edx+4], edi
|
|
|
|
|
dec ecx
|
|
|
|
|
mov esi, ebp
|
|
|
|
|
mov edi, [cd_mem_location]
|
|
|
|
|
add edi, 40
|
|
|
|
|
test dword [ebx+4], 1; 0=ANSI, 1=UNICODE
|
|
|
|
|
jnz .unicode
|
2010-10-01 11:21:55 +02:00
|
|
|
|
; jmp .unicode
|
|
|
|
|
.ansi:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [cd_counter_block], 2
|
|
|
|
|
jbe .ansi_parent_directory
|
|
|
|
|
cld
|
|
|
|
|
lodsw
|
|
|
|
|
xchg ah, al
|
|
|
|
|
call uni2ansi_char
|
|
|
|
|
cld
|
|
|
|
|
stosb
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка конца файла
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov ax, [esi]
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp ax, word 3B00h; сепаратор конца файла ';'
|
2012-03-08 09:33:38 +01:00
|
|
|
|
je .cd_get_parameters_of_file_1
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка для файлов не заканчивающихся сепаратором
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-33]
|
|
|
|
|
add eax, ebp
|
|
|
|
|
sub eax, 34
|
|
|
|
|
cmp esi, eax
|
|
|
|
|
je .cd_get_parameters_of_file_1
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка конца папки
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-1]
|
|
|
|
|
add eax, ebp
|
|
|
|
|
cmp esi, eax
|
|
|
|
|
jb .ansi
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.cd_get_parameters_of_file_1:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi], byte 0
|
|
|
|
|
call cd_get_parameters_of_file
|
|
|
|
|
add [cd_mem_location], 304
|
|
|
|
|
jmp .get_names_from_buffer_1
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
.ansi_parent_directory:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [cd_counter_block], 2
|
|
|
|
|
je @f
|
|
|
|
|
mov [edi], byte '.'
|
|
|
|
|
inc edi
|
|
|
|
|
jmp .cd_get_parameters_of_file_1
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi], word '..'
|
|
|
|
|
add edi, 2
|
|
|
|
|
jmp .cd_get_parameters_of_file_1
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
.unicode:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [cd_counter_block], 2
|
|
|
|
|
jbe .unicode_parent_directory
|
|
|
|
|
cld
|
|
|
|
|
movsw
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка конца файла
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov ax, [esi]
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp ax, word 3B00h; сепаратор конца файла ';'
|
2012-03-08 09:33:38 +01:00
|
|
|
|
je .cd_get_parameters_of_file_2
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка для файлов не заканчивающихся сепаратором
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-33]
|
|
|
|
|
add eax, ebp
|
|
|
|
|
sub eax, 34
|
|
|
|
|
cmp esi, eax
|
|
|
|
|
je .cd_get_parameters_of_file_2
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка конца папки
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-1]
|
|
|
|
|
add eax, ebp
|
|
|
|
|
cmp esi, eax
|
|
|
|
|
jb .unicode
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.cd_get_parameters_of_file_2:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi], word 0
|
|
|
|
|
call cd_get_parameters_of_file
|
|
|
|
|
add [cd_mem_location], 560
|
|
|
|
|
jmp .get_names_from_buffer_1
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
.unicode_parent_directory:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [cd_counter_block], 2
|
|
|
|
|
je @f
|
|
|
|
|
mov [edi], word 2E00h; '.'
|
|
|
|
|
add edi, 2
|
|
|
|
|
jmp .cd_get_parameters_of_file_2
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi], dword 2E002E00h; '..'
|
|
|
|
|
add edi, 4
|
|
|
|
|
jmp .cd_get_parameters_of_file_2
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
.end_buffer:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
pop edx edi esi eax
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
cd_get_parameters_of_file:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov edi, [cd_mem_location]
|
2010-10-01 11:21:55 +02:00
|
|
|
|
cd_get_parameters_of_file_1:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; получаем атрибуты файла
|
2012-03-08 09:33:38 +01:00
|
|
|
|
xor eax, eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; файл не архивировался
|
2012-03-08 09:33:38 +01:00
|
|
|
|
inc eax
|
|
|
|
|
shl eax, 1
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; это каталог?
|
2012-03-08 09:33:38 +01:00
|
|
|
|
test [ebp-8], byte 2
|
|
|
|
|
jz .file
|
|
|
|
|
inc eax
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.file:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; метка тома не как в FAT, в этом виде отсутсвует
|
|
|
|
|
; файл не является системным
|
2012-03-08 09:33:38 +01:00
|
|
|
|
shl eax, 3
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; файл является скрытым? (атрибут существование)
|
2012-03-08 09:33:38 +01:00
|
|
|
|
test [ebp-8], byte 1
|
|
|
|
|
jz .hidden
|
|
|
|
|
inc eax
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.hidden:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
shl eax, 1
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; файл всегда только для чтения, так как это CD
|
2012-03-08 09:33:38 +01:00
|
|
|
|
inc eax
|
|
|
|
|
mov [edi], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; получаем время для файла
|
|
|
|
|
;час
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-12]
|
|
|
|
|
shl eax, 8
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;минута
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov al, [ebp-11]
|
|
|
|
|
shl eax, 8
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;секунда
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov al, [ebp-10]
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;время создания файла
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi+8], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;время последнего доступа
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi+16], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;время последней записи
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi+24], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; получаем дату для файла
|
|
|
|
|
;год
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-15]
|
|
|
|
|
add eax, 1900
|
|
|
|
|
shl eax, 8
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;месяц
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov al, [ebp-14]
|
|
|
|
|
shl eax, 8
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;день
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov al, [ebp-13]
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;дата создания файла
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi+12], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;время последнего доступа
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi+20], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
;время последней записи
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [edi+28], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; получаем тип данных имени
|
2012-03-08 09:33:38 +01:00
|
|
|
|
xor eax, eax
|
|
|
|
|
test dword [ebx+4], 1; 0=ANSI, 1=UNICODE
|
|
|
|
|
jnz .unicode_1
|
|
|
|
|
mov [edi+4], eax
|
|
|
|
|
jmp @f
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.unicode_1:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
inc eax
|
|
|
|
|
mov [edi+4], eax
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; получаем размер файла в байтах
|
2012-03-08 09:33:38 +01:00
|
|
|
|
xor eax, eax
|
|
|
|
|
mov [edi+32+4], eax
|
|
|
|
|
mov eax, [ebp-23]
|
|
|
|
|
mov [edi+32], eax
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
;----------------------------------------------------------------
|
|
|
|
|
;
|
|
|
|
|
; fs_CdGetFileInfo - LFN variant for CD
|
|
|
|
|
; get file/directory attributes structure
|
|
|
|
|
;
|
|
|
|
|
;----------------------------------------------------------------
|
|
|
|
|
fs_CdGetFileInfo:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp byte [esi], 0
|
|
|
|
|
jnz @f
|
|
|
|
|
mov eax, 2
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
push edi
|
|
|
|
|
call cd_find_lfn
|
|
|
|
|
pushfd
|
|
|
|
|
cmp [DevErrorCode], 0
|
|
|
|
|
jz @f
|
|
|
|
|
popfd
|
|
|
|
|
pop edi
|
|
|
|
|
mov eax, 11
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
popfd
|
|
|
|
|
jnc @f
|
|
|
|
|
pop edi
|
|
|
|
|
mov eax, ERROR_FILE_NOT_FOUND
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
|
|
|
|
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov edi, edx
|
|
|
|
|
push ebp
|
|
|
|
|
mov ebp, [cd_current_pointer_of_input]
|
|
|
|
|
add ebp, 33
|
|
|
|
|
call cd_get_parameters_of_file_1
|
|
|
|
|
pop ebp
|
|
|
|
|
and dword [edi+4], 0
|
|
|
|
|
pop edi
|
|
|
|
|
xor eax, eax
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
;----------------------------------------------------------------
|
|
|
|
|
cd_find_lfn:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [cd_appl_data], 0
|
2010-10-01 11:21:55 +02:00
|
|
|
|
; in: esi+ebp -> name
|
|
|
|
|
; out: CF=1 - file not found
|
|
|
|
|
; else CF=0 and [cd_current_pointer_of_input] direntry
|
2012-03-08 09:33:38 +01:00
|
|
|
|
push eax esi
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; 16 сектор начало набора дескрипторов томов
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
2012-03-08 09:33:38 +01:00
|
|
|
|
call WaitUnitReady
|
|
|
|
|
cmp [DevErrorCode], 0
|
|
|
|
|
jne .access_denied
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
2012-03-08 09:33:38 +01:00
|
|
|
|
call prevent_medium_removal
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; тестовое чтение
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [CDSectorAddress], dword 16
|
|
|
|
|
mov [CDDataBuf_pointer], CDDataBuf
|
|
|
|
|
call ReadCDWRetr;_1
|
|
|
|
|
cmp [DevErrorCode], 0
|
|
|
|
|
jne .access_denied
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; вычисление последней сессии
|
2012-03-08 09:33:38 +01:00
|
|
|
|
call WaitUnitReady
|
|
|
|
|
cmp [DevErrorCode], 0
|
|
|
|
|
jne .access_denied
|
|
|
|
|
call Read_TOC
|
|
|
|
|
mov ah, [CDDataBuf+4+4]
|
|
|
|
|
mov al, [CDDataBuf+4+5]
|
|
|
|
|
shl eax, 16
|
|
|
|
|
mov ah, [CDDataBuf+4+6]
|
|
|
|
|
mov al, [CDDataBuf+4+7]
|
|
|
|
|
add eax, 15
|
|
|
|
|
mov [CDSectorAddress], eax
|
2010-10-01 11:21:55 +02:00
|
|
|
|
; mov [CDSectorAddress],dword 15
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [CDDataBuf_pointer], CDDataBuf
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
.start:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
inc dword [CDSectorAddress]
|
|
|
|
|
call ReadCDWRetr;_1
|
|
|
|
|
cmp [DevErrorCode], 0
|
|
|
|
|
jne .access_denied
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
.start_check:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка на вшивость
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [CDDataBuf+1], dword 'CD00'
|
|
|
|
|
jne .access_denied
|
|
|
|
|
cmp [CDDataBuf+5], byte '1'
|
|
|
|
|
jne .access_denied
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; сектор является терминатором набор дескрипторов томов?
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [CDDataBuf], byte 0xff
|
|
|
|
|
je .access_denied
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; сектор является дополнительным и улучшенным дескриптором тома?
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [CDDataBuf], byte 0x2
|
|
|
|
|
jne .start
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; сектор является дополнительным дескриптором тома?
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [CDDataBuf+6], byte 0x1
|
|
|
|
|
jne .start
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; параметры root директрории
|
|
|
|
|
mov eax, [CDDataBuf+0x9c+2]; начало root директрории
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [CDSectorAddress], eax
|
2013-05-28 21:09:31 +02:00
|
|
|
|
mov eax, [CDDataBuf+0x9c+10]; размер root директрории
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp byte [esi], 0
|
|
|
|
|
jnz @f
|
|
|
|
|
mov [cd_current_pointer_of_input], CDDataBuf+0x9c
|
|
|
|
|
jmp .done
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; начинаем поиск
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.mainloop:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
dec dword [CDSectorAddress]
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.read_to_buffer:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
inc dword [CDSectorAddress]
|
|
|
|
|
mov [CDDataBuf_pointer], CDDataBuf
|
2013-05-28 21:09:31 +02:00
|
|
|
|
call ReadCDWRetr ; читаем сектор директории
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp [DevErrorCode], 0
|
|
|
|
|
jne .access_denied
|
|
|
|
|
push ebp
|
|
|
|
|
call cd_find_name_in_buffer
|
|
|
|
|
pop ebp
|
|
|
|
|
jnc .found
|
|
|
|
|
sub eax, 2048
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; директория закончилась?
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp eax, 0
|
|
|
|
|
ja .read_to_buffer
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; нет искомого элемента цепочки
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.access_denied:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
pop esi eax
|
|
|
|
|
mov [cd_appl_data], 1
|
|
|
|
|
stc
|
|
|
|
|
ret
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; искомый элемент цепочки найден
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.found:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; конец пути файла
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp byte [esi-1], 0
|
|
|
|
|
jz .done
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.nested:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov eax, [cd_current_pointer_of_input]
|
|
|
|
|
push dword [eax+2]
|
2013-05-28 21:09:31 +02:00
|
|
|
|
pop dword [CDSectorAddress] ; начало директории
|
|
|
|
|
mov eax, [eax+2+8]; размер директории
|
2012-03-08 09:33:38 +01:00
|
|
|
|
jmp .mainloop
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; указатель файла найден
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.done:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
test ebp, ebp
|
|
|
|
|
jz @f
|
|
|
|
|
mov esi, ebp
|
|
|
|
|
xor ebp, ebp
|
|
|
|
|
jmp .nested
|
2010-10-01 11:21:55 +02:00
|
|
|
|
@@:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
pop esi eax
|
|
|
|
|
mov [cd_appl_data], 1
|
|
|
|
|
clc
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
cd_find_name_in_buffer:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov [cd_current_pointer_of_input_2], CDDataBuf
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.start:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
call cd_get_name
|
|
|
|
|
jc .not_found
|
|
|
|
|
call cd_compare_name
|
|
|
|
|
jc .start
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.found:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
clc
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.not_found:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
stc
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
cd_get_name:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
push eax
|
|
|
|
|
mov ebp, [cd_current_pointer_of_input_2]
|
|
|
|
|
mov [cd_current_pointer_of_input], ebp
|
|
|
|
|
mov eax, [ebp]
|
2013-05-28 21:09:31 +02:00
|
|
|
|
test eax, eax ; входы закончились?
|
2012-03-08 09:33:38 +01:00
|
|
|
|
jz .next_sector
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp ebp, CDDataBuf+2048 ; буфер закончился?
|
2012-03-08 09:33:38 +01:00
|
|
|
|
jae .next_sector
|
|
|
|
|
movzx eax, byte [ebp]
|
2013-05-28 21:09:31 +02:00
|
|
|
|
add [cd_current_pointer_of_input_2], eax; следующий вход каталога
|
|
|
|
|
add ebp, 33; указатель установлен на начало имени
|
2012-03-08 09:33:38 +01:00
|
|
|
|
pop eax
|
|
|
|
|
clc
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.next_sector:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
pop eax
|
|
|
|
|
stc
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
cd_compare_name:
|
|
|
|
|
; compares ASCIIZ-names, case-insensitive (cp866 encoding)
|
|
|
|
|
; in: esi->name, ebp->name
|
|
|
|
|
; out: if names match: ZF=1 and esi->next component of name
|
|
|
|
|
; else: ZF=0, esi is not changed
|
|
|
|
|
; destroys eax
|
2012-03-08 09:33:38 +01:00
|
|
|
|
push esi eax edi
|
|
|
|
|
mov edi, ebp
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.loop:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cld
|
|
|
|
|
lodsb
|
|
|
|
|
push eax
|
|
|
|
|
call char_todown
|
|
|
|
|
call ansi2uni_char
|
|
|
|
|
xchg ah, al
|
|
|
|
|
scasw
|
|
|
|
|
pop eax
|
|
|
|
|
je .coincides
|
|
|
|
|
call char_toupper
|
|
|
|
|
call ansi2uni_char
|
|
|
|
|
xchg ah, al
|
|
|
|
|
sub edi, 2
|
|
|
|
|
scasw
|
|
|
|
|
jne .name_not_coincide
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.coincides:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp [esi], byte '/'; разделитель пути, конец имени текущего элемента
|
2012-03-08 09:33:38 +01:00
|
|
|
|
je .done
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp [esi], byte 0; разделитель пути, конец имени текущего элемента
|
2012-03-08 09:33:38 +01:00
|
|
|
|
je .done
|
|
|
|
|
jmp .loop
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.name_not_coincide:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
pop edi eax esi
|
|
|
|
|
stc
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.done:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка конца файла
|
|
|
|
|
cmp [edi], word 3B00h; сепаратор конца файла ';'
|
2012-03-08 09:33:38 +01:00
|
|
|
|
je .done_1
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка для файлов не заканчивающихся сепаратором
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-33]
|
|
|
|
|
add eax, ebp
|
|
|
|
|
sub eax, 34
|
|
|
|
|
cmp edi, eax
|
|
|
|
|
je .done_1
|
2013-05-28 21:09:31 +02:00
|
|
|
|
; проверка конца папки
|
2012-03-08 09:33:38 +01:00
|
|
|
|
movzx eax, byte [ebp-1]
|
|
|
|
|
add eax, ebp
|
|
|
|
|
cmp edi, eax
|
|
|
|
|
jne .name_not_coincide
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.done_1:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
pop edi eax
|
|
|
|
|
add esp, 4
|
|
|
|
|
inc esi
|
|
|
|
|
clc
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
char_todown:
|
|
|
|
|
; convert character to uppercase, using cp866 encoding
|
|
|
|
|
; in: al=symbol
|
|
|
|
|
; out: al=converted symbol
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp al, 'A'
|
|
|
|
|
jb .ret
|
|
|
|
|
cmp al, 'Z'
|
|
|
|
|
jbe .az
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp al, 0x80 ; 'А'
|
2012-03-08 09:33:38 +01:00
|
|
|
|
jb .ret
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp al, 0x90 ; 'Р'
|
2012-03-08 09:33:38 +01:00
|
|
|
|
jb .rus1
|
2013-05-28 21:09:31 +02:00
|
|
|
|
cmp al, 0x9F ; 'Я'
|
2012-03-08 09:33:38 +01:00
|
|
|
|
ja .ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
; 0x90-0x9F -> 0xE0-0xEF
|
2013-05-28 21:09:31 +02:00
|
|
|
|
add al, 0xE0-0x90
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.ret:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.rus1:
|
|
|
|
|
; 0x80-0x8F -> 0xA0-0xAF
|
|
|
|
|
.az:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
add al, 0x20
|
|
|
|
|
ret
|
2010-10-01 11:21:55 +02:00
|
|
|
|
|
|
|
|
|
uni2ansi_char:
|
|
|
|
|
; convert UNICODE character in al to ANSI character in ax, using cp866 encoding
|
|
|
|
|
; in: ax=UNICODE character
|
|
|
|
|
; out: al=converted ANSI character
|
2012-03-08 09:33:38 +01:00
|
|
|
|
cmp ax, 0x80
|
|
|
|
|
jb .ascii
|
|
|
|
|
cmp ax, 0x401
|
|
|
|
|
jz .yo1
|
|
|
|
|
cmp ax, 0x451
|
|
|
|
|
jz .yo2
|
|
|
|
|
cmp ax, 0x410
|
|
|
|
|
jb .unk
|
|
|
|
|
cmp ax, 0x440
|
|
|
|
|
jb .rus1
|
|
|
|
|
cmp ax, 0x450
|
|
|
|
|
jb .rus2
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.unk:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
mov al, '_'
|
|
|
|
|
jmp .doit
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.yo1:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
mov al, 0xF0 ; 'Ё' in cp866
|
2012-03-08 09:33:38 +01:00
|
|
|
|
jmp .doit
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.yo2:
|
2013-05-28 21:09:31 +02:00
|
|
|
|
mov al, 0xF1 ; 'ё' in cp866
|
2012-03-08 09:33:38 +01:00
|
|
|
|
jmp .doit
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.rus1:
|
|
|
|
|
; 0x410-0x43F -> 0x80-0xAF
|
2012-03-08 09:33:38 +01:00
|
|
|
|
add al, 0x70
|
|
|
|
|
jmp .doit
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.rus2:
|
|
|
|
|
; 0x440-0x44F -> 0xE0-0xEF
|
2012-03-08 09:33:38 +01:00
|
|
|
|
add al, 0xA0
|
2010-10-01 11:21:55 +02:00
|
|
|
|
.ascii:
|
|
|
|
|
.doit:
|
2012-03-08 09:33:38 +01:00
|
|
|
|
ret
|