forked from KolibriOS/kolibrios
827 lines
20 KiB
PHP
827 lines
20 KiB
PHP
|
||
uglobal
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||
cd_current_pointer_of_input dd 0
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||
cd_current_pointer_of_input_2 dd 0
|
||
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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||
endg
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||
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||
CDDataBuf equ 0x7000
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||
|
||
reserve_cd:
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||
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||
cli
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||
cmp [cd_status],0
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||
je reserve_ok2
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||
|
||
sti
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||
call change_task
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||
jmp reserve_cd
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||
|
||
reserve_ok2:
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||
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||
push eax
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||
mov eax,[0x3000]
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||
shl eax,5
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||
mov eax,[eax+0x3000+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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||
|
||
reserve_cd_channel:
|
||
cmp [ChannelNumber],1
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||
jne .IDE_Channel_2
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||
.IDE_Channel_1:
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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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||
.IDE_Channel_2:
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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_1
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||
.reserve_ok_1:
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||
mov [IDE_Channel_1],1
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||
ret
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||
.reserve_ok_2:
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||
mov [IDE_Channel_2],1
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||
ret
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||
|
||
free_cd_channel:
|
||
cmp [ChannelNumber],1
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||
jne .IDE_Channel_2
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||
.IDE_Channel_1:
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||
mov [IDE_Channel_1],0
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||
ret
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.IDE_Channel_2:
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||
mov [IDE_Channel_2],0
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||
ret
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||
|
||
cd_status dd 0
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||
|
||
;----------------------------------------------------------------
|
||
;
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||
; fs_CdRead - LFN variant for reading CD disk
|
||
;
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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+
|
||
; may be ebx=0 - start from first byte
|
||
; ecx number of bytes to read, 0+
|
||
; edx mem location to return data
|
||
;
|
||
; 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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||
;--------------------------------------------------------------
|
||
fs_CdRead:
|
||
push edi
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||
cmp byte [esi], 0
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||
jnz @f
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||
.noaccess:
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||
pop edi
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||
.noaccess_2:
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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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||
|
||
.noaccess_3:
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||
pop eax edx ecx edi
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||
jmp .noaccess_2
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||
|
||
@@:
|
||
call cd_find_lfn
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||
jnc .found
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||
pop edi
|
||
cmp [DevErrorCode],0
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||
jne .noaccess_2
|
||
or ebx, -1
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||
mov eax, ERROR_FILE_NOT_FOUND
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||
ret
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||
|
||
.found:
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||
mov edi,[cd_current_pointer_of_input]
|
||
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
|
||
cmp dword [ebx+4], 0
|
||
jz @f
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||
xor ebx, ebx
|
||
.reteof:
|
||
mov eax, 6 ; end of file
|
||
pop edi
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||
ret
|
||
@@:
|
||
mov ebx, [ebx]
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||
.l1:
|
||
push ecx edx
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||
push 0
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||
mov eax, [edi+10] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
sub eax, ebx
|
||
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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||
@@:
|
||
mov eax,[edi+2]
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||
mov [CDSectorAddress],eax
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||
; now eax=cluster, ebx=position, ecx=count, edx=buffer for data
|
||
.new_sector:
|
||
test ecx, ecx
|
||
jz .done
|
||
sub ebx, 2048
|
||
jae .new_sector
|
||
add ebx, 2048
|
||
jnz .incomplete_sector
|
||
cmp ecx, 2048
|
||
jb .incomplete_sector
|
||
; we may read and memmove complete sector
|
||
mov [CDDataBuf_pointer],edx
|
||
call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp [DevErrorCode],0
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||
jne .noaccess_3
|
||
inc dword [CDSectorAddress]
|
||
add edx, 2048
|
||
sub ecx, 2048
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||
jmp .new_sector
|
||
.incomplete_sector:
|
||
; we must read and memmove incomplete sector
|
||
mov [CDDataBuf_pointer],CDDataBuf
|
||
call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
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cmp [DevErrorCode],0
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||
jne .noaccess_3
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inc dword [CDSectorAddress]
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||
mov eax,CDDataBuf
|
||
add eax, ebx
|
||
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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||
@@:
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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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||
mov esi,eax ;0x7000 ; CD data buffer
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||
cld
|
||
rep movsb
|
||
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 .new_sector
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||
|
||
.done:
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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
|
||
.eof:
|
||
mov ebx, edx
|
||
pop eax edx ecx
|
||
sub ebx, edx
|
||
jmp .reteof
|
||
|
||
;----------------------------------------------------------------
|
||
;
|
||
; fs_CdReadFolder - LFN variant for reading CD disk folder
|
||
;
|
||
; esi points to filename /dir1/dir2/.../dirn/file,0
|
||
; ebx pointer to structure 32-bit number = first wanted block, 0+
|
||
; & flags (bitfields)
|
||
; flags: bit 0: 0=ANSI names, 1=UNICODE names
|
||
; ecx number of blocks to read, 0+
|
||
; edx mem location to return data
|
||
;
|
||
; ret ebx = blocks read or 0xffffffff folder not found
|
||
; eax = 0 ok read or other = errormsg
|
||
;
|
||
;--------------------------------------------------------------
|
||
fs_CdReadFolder:
|
||
push edi
|
||
call cd_find_lfn
|
||
jnc .found
|
||
pop edi
|
||
cmp [DevErrorCode],0
|
||
jne .noaccess_1
|
||
or ebx, -1
|
||
mov eax, ERROR_FILE_NOT_FOUND
|
||
ret
|
||
.found:
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||
mov edi,[cd_current_pointer_of_input]
|
||
test byte [edi+25],10b ; do not allow read directories
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||
jnz .found_dir
|
||
pop edi
|
||
.noaccess_1:
|
||
or ebx, -1
|
||
mov eax, ERROR_ACCESS_DENIED
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ret
|
||
.found_dir:
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||
mov eax,[edi+2] ; eax=cluster
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||
mov [CDSectorAddress],eax
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||
mov eax,[edi+10] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.doit:
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; init header
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||
push eax ecx
|
||
mov edi, edx
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||
mov ecx, 32/4
|
||
xor eax, eax
|
||
rep stosd
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||
pop ecx eax
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||
mov byte [edx], 1 ; version
|
||
mov [cd_mem_location],edx
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||
add [cd_mem_location],32
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
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;.mainloop:
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||
mov [cd_counter_block],dword 0
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dec dword [CDSectorAddress]
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push ecx
|
||
.read_to_buffer:
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||
inc dword [CDSectorAddress]
|
||
mov [CDDataBuf_pointer],CDDataBuf
|
||
call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
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
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
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cmp eax,0
|
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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
|
||
mov edi,[ebx]
|
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sub [edx+4],edi
|
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pop ecx edi
|
||
mov ebx, [edx+4]
|
||
mov eax,ERROR_SUCCESS
|
||
ret
|
||
|
||
.get_names_from_buffer:
|
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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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.get_names_from_buffer_1:
|
||
call cd_get_name
|
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jc .end_buffer
|
||
inc dword [cd_counter_block]
|
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mov eax,[cd_counter_block]
|
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cmp [ebx],eax
|
||
jae .get_names_from_buffer_1
|
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test ecx, ecx
|
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jz .get_names_from_buffer_1
|
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mov edi,[cd_counter_block]
|
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mov [edx+4],edi
|
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dec ecx
|
||
mov esi,ebp
|
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mov edi,[cd_mem_location]
|
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add edi,40
|
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test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE
|
||
jnz .unicode
|
||
; jmp .unicode
|
||
.ansi:
|
||
cmp [cd_counter_block],2
|
||
jbe .ansi_parent_directory
|
||
cld
|
||
lodsw
|
||
xchg ah,al
|
||
call uni2ansi_char
|
||
cld
|
||
stosb
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov ax,[esi]
|
||
cmp ax,word 3B00h ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ';'
|
||
je .cd_get_parameters_of_file_1
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-33]
|
||
add eax,ebp
|
||
sub eax,34
|
||
cmp esi,eax
|
||
je .cd_get_parameters_of_file_1
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-1]
|
||
add eax,ebp
|
||
cmp esi,eax
|
||
jb .ansi
|
||
.cd_get_parameters_of_file_1:
|
||
mov [edi],byte 0
|
||
call cd_get_parameters_of_file
|
||
add [cd_mem_location],304
|
||
jmp .get_names_from_buffer_1
|
||
|
||
.ansi_parent_directory:
|
||
cmp [cd_counter_block],2
|
||
je @f
|
||
mov [edi],byte '.'
|
||
inc edi
|
||
jmp .cd_get_parameters_of_file_1
|
||
@@:
|
||
mov [edi],word '..'
|
||
add edi,2
|
||
jmp .cd_get_parameters_of_file_1
|
||
|
||
.unicode:
|
||
cmp [cd_counter_block],2
|
||
jbe .unicode_parent_directory
|
||
cld
|
||
movsw
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov ax,[esi]
|
||
cmp ax,word 3B00h ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ';'
|
||
je .cd_get_parameters_of_file_2
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-33]
|
||
add eax,ebp
|
||
sub eax,34
|
||
cmp esi,eax
|
||
je .cd_get_parameters_of_file_2
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-1]
|
||
add eax,ebp
|
||
cmp esi,eax
|
||
jb .unicode
|
||
.cd_get_parameters_of_file_2:
|
||
mov [edi],word 0
|
||
call cd_get_parameters_of_file
|
||
add [cd_mem_location],560
|
||
jmp .get_names_from_buffer_1
|
||
|
||
.unicode_parent_directory:
|
||
cmp [cd_counter_block],2
|
||
je @f
|
||
mov [edi],word 2E00h ; '.'
|
||
add edi,2
|
||
jmp .cd_get_parameters_of_file_2
|
||
@@:
|
||
mov [edi],dword 2E002E00h ; '..'
|
||
add edi,4
|
||
jmp .cd_get_parameters_of_file_2
|
||
|
||
.end_buffer:
|
||
pop edx edi esi eax
|
||
ret
|
||
|
||
cd_get_parameters_of_file:
|
||
mov edi,[cd_mem_location]
|
||
cd_get_parameters_of_file_1:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
xor eax,eax
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
inc al
|
||
shl eax,1
|
||
; <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
test [ebp-8],byte 2
|
||
jz .file
|
||
inc al
|
||
.file:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD> FAT, <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
shl eax,3
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>? (<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||
test [ebp-8],byte 1
|
||
jz .hidden
|
||
inc al
|
||
.hidden:
|
||
shl eax,1
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> CD
|
||
inc al
|
||
mov [edi],eax
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
;<EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-12]
|
||
shl eax,8
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov al,[ebp-11]
|
||
shl eax,8
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov al,[ebp-10]
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+8],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+16],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+24],eax
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
;<EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-15]
|
||
add eax,1900
|
||
shl eax,8
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov al,[ebp-14]
|
||
shl eax,8
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov al,[ebp-13]
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+12],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+20],eax
|
||
;<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [edi+28],eax
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
xor eax,eax
|
||
test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE
|
||
jnz .unicode_1
|
||
mov [edi+4],eax
|
||
jmp @f
|
||
.unicode_1:
|
||
inc eax
|
||
mov [edi+4],eax
|
||
@@:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
xor eax,eax
|
||
mov [edi+32+4],eax
|
||
mov eax,[ebp-23]
|
||
mov [edi+32],eax
|
||
ret
|
||
|
||
;----------------------------------------------------------------
|
||
;
|
||
; fs_CdGetFileInfo - LFN variant for CD
|
||
; get file/directory attributes structure
|
||
;
|
||
;----------------------------------------------------------------
|
||
fs_CdGetFileInfo:
|
||
cmp byte [esi], 0
|
||
jnz @f
|
||
mov eax, 2
|
||
ret
|
||
@@:
|
||
push edi ebp
|
||
call cd_find_lfn
|
||
pushfd
|
||
cmp [DevErrorCode], 0
|
||
jz @f
|
||
popfd
|
||
pop ebp edi
|
||
mov eax, 11
|
||
ret
|
||
@@:
|
||
popfd
|
||
jnc @f
|
||
pop ebp edi
|
||
mov eax, ERROR_FILE_NOT_FOUND
|
||
ret
|
||
@@:
|
||
|
||
mov edi, edx
|
||
call cd_get_parameters_of_file_1
|
||
and dword [edi+4], 0
|
||
pop ebp
|
||
pop ebp edi
|
||
xor eax, eax
|
||
ret
|
||
|
||
;----------------------------------------------------------------
|
||
;
|
||
; fs_CdExecute - LFN variant for executing from CD
|
||
;
|
||
; esi points to hd filename (e.g. 'dir1/name')
|
||
; ebp points to full filename (e.g. '/hd0/1/dir1/name')
|
||
; dword [ebx] = flags
|
||
; dword [ebx+4] = cmdline
|
||
;
|
||
; ret ebx,edx destroyed
|
||
; eax > 0 - PID, < 0 - error
|
||
;
|
||
;--------------------------------------------------------------
|
||
fs_CdExecute:
|
||
mov edx, [ebx]
|
||
mov ebx, [ebx+4]
|
||
test ebx, ebx
|
||
jz @f
|
||
add ebx, std_application_base_address
|
||
@@:
|
||
|
||
;----------------------------------------------------------------
|
||
;
|
||
; fs_CdExecute.flags - second entry
|
||
;
|
||
; esi points to floppy filename (kernel address)
|
||
; ebp points to full filename
|
||
; edx flags
|
||
; ebx cmdline (kernel address)
|
||
;
|
||
; ret eax > 0 - PID, < 0 - error
|
||
;
|
||
;--------------------------------------------------------------
|
||
|
||
.flags:
|
||
cmp byte [esi], 0
|
||
jnz @f
|
||
; cannot execute root!
|
||
mov eax, -ERROR_ACCESS_DENIED
|
||
ret
|
||
@@:
|
||
push edi
|
||
call cd_find_lfn
|
||
jnc .found
|
||
pop edi
|
||
mov eax, -ERROR_FILE_NOT_FOUND
|
||
cmp [DevErrorCode], 0
|
||
jz @f
|
||
mov al, -11
|
||
@@:
|
||
ret
|
||
.found:
|
||
mov edi,[cd_current_pointer_of_input]
|
||
mov eax,[edi+2]
|
||
push 0
|
||
push eax
|
||
push dword [edi+10] ; size
|
||
push .DoRead
|
||
call fs_execute
|
||
add esp, 16
|
||
pop edi
|
||
ret
|
||
|
||
.DoRead:
|
||
; read next block
|
||
; in: eax->parameters, edi->buffer
|
||
; out: eax = error code
|
||
pushad
|
||
cmp dword [eax], 0 ; file size
|
||
jz .eof
|
||
cmp [eax+8],dword 0
|
||
jne @f
|
||
mov ecx,[eax+4]
|
||
inc dword [eax+4]
|
||
mov [CDSectorAddress],ecx
|
||
mov [CDDataBuf_pointer],CDDataBuf ;edi
|
||
call ReadCDWRetr
|
||
cmp [DevErrorCode], 0
|
||
jnz .err
|
||
@@:
|
||
push esi edi ecx
|
||
mov esi,512
|
||
imul esi,[eax+8]
|
||
add esi,CDDataBuf
|
||
mov ecx,512/4
|
||
cld
|
||
rep movsd
|
||
pop ecx edi esi
|
||
|
||
mov eax, [esp+28]
|
||
mov ecx, [eax]
|
||
sub ecx, 512
|
||
jae @f
|
||
lea edi, [edi+ecx+512]
|
||
neg ecx
|
||
push eax
|
||
xor eax, eax
|
||
rep stosb
|
||
pop eax
|
||
@@:
|
||
mov [eax], ecx
|
||
mov edx, [eax+8]
|
||
inc edx
|
||
cmp edx, 4 ; 2048/512=4
|
||
jb @f
|
||
xor edx, edx
|
||
@@:
|
||
mov [eax+8], edx
|
||
popad
|
||
xor eax, eax
|
||
ret
|
||
.eof:
|
||
popad
|
||
mov eax, 6
|
||
ret
|
||
.err:
|
||
popad
|
||
mov eax, 11
|
||
ret
|
||
|
||
cd_find_lfn:
|
||
; in: esi->name
|
||
; out: CF=1 - file not found
|
||
; else CF=0 and [cd_current_pointer_of_input] direntry
|
||
push eax esi
|
||
; 16 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [CDSectorAddress],dword 15
|
||
.start:
|
||
inc dword [CDSectorAddress]
|
||
mov [CDDataBuf_pointer],CDDataBuf
|
||
call ReadCDWRetr
|
||
cmp [DevErrorCode],0
|
||
jne .access_denied
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp [CDDataBuf+1],dword 'CD00'
|
||
jne .access_denied
|
||
cmp [CDDataBuf+5],byte '1'
|
||
jne .access_denied
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp [CDDataBuf],byte 0xff
|
||
je .access_denied
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp [CDDataBuf],byte 0x2
|
||
jne .start
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp [CDDataBuf+6],byte 0x1
|
||
jne .start
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> root <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov eax,[CDDataBuf+0x9c+2] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> root <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
mov [CDSectorAddress],eax
|
||
mov eax,[CDDataBuf+0x9c+10] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> root <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp byte [esi], 0
|
||
jnz @f
|
||
mov [cd_current_pointer_of_input],CDDataBuf+0x9c
|
||
jmp .done
|
||
@@:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.mainloop:
|
||
dec dword [CDSectorAddress]
|
||
.read_to_buffer:
|
||
inc dword [CDSectorAddress]
|
||
mov [CDDataBuf_pointer],CDDataBuf
|
||
call ReadCDWRetr ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp [DevErrorCode],0
|
||
jne .access_denied
|
||
call cd_find_name_in_buffer
|
||
jnc .found
|
||
sub eax,2048
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
cmp eax,0
|
||
ja .read_to_buffer
|
||
; <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.access_denied:
|
||
pop esi eax
|
||
stc
|
||
ret
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.found:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp byte [esi-1], 0
|
||
jz .done
|
||
mov eax,[cd_current_pointer_of_input]
|
||
add eax,2
|
||
mov eax,[eax]
|
||
mov [CDSectorAddress],eax ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
add eax,8
|
||
mov eax,[eax] ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
jmp .mainloop
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
.done:
|
||
pop esi eax
|
||
clc
|
||
ret
|
||
|
||
cd_find_name_in_buffer:
|
||
mov [cd_current_pointer_of_input_2],CDDataBuf
|
||
.start:
|
||
call cd_get_name
|
||
jc .not_found
|
||
call cd_compare_name
|
||
jc .start
|
||
.found:
|
||
clc
|
||
ret
|
||
.not_found:
|
||
stc
|
||
ret
|
||
|
||
cd_get_name:
|
||
push eax
|
||
mov ebp,[cd_current_pointer_of_input_2]
|
||
mov [cd_current_pointer_of_input],ebp
|
||
mov eax,[ebp]
|
||
cmp eax,0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
je .next_sector
|
||
cmp ebp,CDDataBuf+2048 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>?
|
||
jae .next_sector
|
||
movzx eax, byte [ebp]
|
||
add [cd_current_pointer_of_input_2],eax ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
add ebp,33 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
pop eax
|
||
clc
|
||
ret
|
||
.next_sector:
|
||
pop eax
|
||
stc
|
||
ret
|
||
|
||
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
|
||
push esi eax edi
|
||
mov edi,ebp
|
||
.loop:
|
||
cld
|
||
lodsb
|
||
push ax
|
||
call char_todown
|
||
call ansi2uni_char
|
||
xchg ah,al
|
||
cld
|
||
scasw
|
||
pop ax
|
||
je .coincides
|
||
call char_toupper
|
||
call ansi2uni_char
|
||
xchg ah,al
|
||
cld
|
||
sub edi,2
|
||
scasw
|
||
jne .name_not_coincide
|
||
.coincides:
|
||
cmp [esi],byte '/' ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
je .done
|
||
cmp [esi],byte 0 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
je .done
|
||
jmp .loop
|
||
.name_not_coincide:
|
||
pop edi eax esi
|
||
stc
|
||
ret
|
||
.done:
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
cmp [edi],word 3B00h ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ';'
|
||
je .done_1
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-33]
|
||
add eax,ebp
|
||
sub eax,34
|
||
cmp edi,eax
|
||
je .done_1
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
movzx eax,byte [ebp-1]
|
||
add eax,ebp
|
||
cmp edi,eax
|
||
jne .name_not_coincide
|
||
.done_1:
|
||
pop edi eax
|
||
add esp,4
|
||
inc esi
|
||
clc
|
||
ret
|
||
|
||
char_todown:
|
||
; convert character to uppercase, using cp866 encoding
|
||
; in: al=symbol
|
||
; out: al=converted symbol
|
||
cmp al, 'A'
|
||
jb .ret
|
||
cmp al, 'Z'
|
||
jbe .az
|
||
cmp al, '<27>'
|
||
jb .ret
|
||
cmp al, '<27>'
|
||
jb .rus1
|
||
cmp al, '<27>'
|
||
ja .ret
|
||
; 0x90-0x9F -> 0xE0-0xEF
|
||
add al, '<27>'-'<27>'
|
||
.ret:
|
||
ret
|
||
.rus1:
|
||
; 0x80-0x8F -> 0xA0-0xAF
|
||
.az:
|
||
add al, 0x20
|
||
ret
|
||
|
||
uni2ansi_char:
|
||
; convert UNICODE character in al to ANSI character in ax, using cp866 encoding
|
||
; in: ax=UNICODE character
|
||
; out: al=converted ANSI character
|
||
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
|
||
.unk:
|
||
mov al, '_'
|
||
jmp .doit
|
||
.yo1:
|
||
mov al, '<27>'
|
||
jmp .doit
|
||
.yo2:
|
||
mov al, '<27>'
|
||
jmp .doit
|
||
.rus1:
|
||
; 0x410-0x43F -> 0x80-0xAF
|
||
add al, 0x70
|
||
jmp .doit
|
||
.rus2:
|
||
; 0x440-0x44F -> 0xE0-0xEF
|
||
add al, 0xA0
|
||
.ascii:
|
||
.doit:
|
||
ret
|