forked from KolibriOS/kolibrios
Rustem Gimadutdinov (rgimad)
73864ff1d7
git-svn-id: svn://kolibrios.org@9019 a494cfbc-eb01-0410-851d-a64ba20cac60
341 lines
6.9 KiB
PHP
341 lines
6.9 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
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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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iglobal
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full_file_name_table dd sysdir_name
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.size dd 1
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endg
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uglobal
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sysdir_name rb 64 ; 'sys',0
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sysdir_path rb 64
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sysdir_name1 rb 64
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sysdir_path1 rb 64
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endg
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; Example:
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; align 64
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; sysdir_name1 db 'KolibriOS',0
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; align 64
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; sysdir_path1 db 'HD0/1',0
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proc Parser_params
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locals
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buff rb 4 ; for test cd
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endl
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if defined extended_primary_loader
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mov ecx, sysdir_path
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mov [ecx-64], dword 'sys'
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mov [ecx-2], byte 3
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mov esi, BOOT.syspath
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mov edi, sysdir_path-1
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mov ecx, 20
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rep movsb
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ret
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else
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mov ax, [BOOT.sys_disk]
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mov ecx, sysdir_path
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mov [ecx-64], dword 'sys'
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mov [ecx-2], byte 3
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mov [ecx-1], byte '/'
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cmp al, 'r' ; ram disk
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jnz @f
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mov [ecx], dword 'RD/?'
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mov [ecx+3], byte ah
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mov [ecx+4], byte 0
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ret
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@@:
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cmp al, 'm'
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jnz .hard_disk
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mov [ecx], dword 'CD?/'
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mov [ecx+4], byte '1'
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mov [ecx+5], dword '/KOL'
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mov [ecx+9], dword 'IBRI'
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mov [ecx+13], byte 0
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.next_cd:
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mov [ecx+2], byte ah
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inc ah
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cmp ah, '5'
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je @f
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lea edx, [buff]
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pushad
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stdcall read_file, read_firstapp, edx, 0, 4
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popad
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cmp [edx], dword 'MENU'
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jne .next_cd
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@@:
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ret
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end if
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.hard_disk:
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sub al, '1'
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mov [ecx], dword 'HD?/'
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mov [ecx+2], byte al
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mov [ecx+4], byte ah
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mov [ecx+5], dword '/KOL'
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mov [ecx+9], dword 'IBRI'
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mov [ecx+13], byte 0
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ret
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endp
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cp866toUpper:
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; convert cp866 character in al to uppercase
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cmp al, 'a'
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jb .ret
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cmp al, 'z'
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jbe @f
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cmp al, 0xA0
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jb .ret
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cmp al, 0xB0
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jb @f
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cmp al, 0xE0
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jb .ret
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cmp al, 0xF0
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jb .rus
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cmp al, 0xF7
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ja .ret
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and eax, -2
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.ret:
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ret
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@@:
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sub eax, 32
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ret
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.rus:
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sub eax, 0xE0-0x90
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ret
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utf16toUpper:
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; convert UTF-16 character in ax to uppercase
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cmp ax, 'a'
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jb .ret
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cmp ax, 'z'
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jbe @f
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cmp ax, 430h
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jb .ret
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cmp ax, 450h
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jb @f
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cmp ax, 460h
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jnc .ret
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sub eax, 80
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.ret:
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ret
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@@:
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sub eax, 32
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ret
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uni2ansi_char:
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; convert UNICODE character in ax to ANSI character in al using cp866 encoding
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cmp ax, 0x80
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jb .ret
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cmp ax, 0xB6
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jz .B6
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cmp ax, 0x400
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jb .unk
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cmp ax, 0x410
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jb @f
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cmp ax, 0x440
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jb .rus1
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cmp ax, 0x450
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jb .rus2
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cmp ax, 0x460
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jb @f
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.unk:
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mov al, '_'
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.ret:
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ret
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.B6:
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mov al, 20
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ret
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.rus1: ; 0x410-0x43F -> 0x80-0xAF
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add al, 0x70
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ret
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.rus2: ; 0x440-0x44F -> 0xE0-0xEF
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add al, 0xA0
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ret
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@@:
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push ecx edi
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mov ecx, 8
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mov edi, .table
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repnz scasb
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mov ah, cl
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pop edi ecx
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jnz .unk
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mov al, 0xF7
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sub al, ah
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ret
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.table db 1, 51h, 4, 54h, 7, 57h, 0Eh, 5Eh
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ansi2uni_char:
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; convert ANSI character in al to UNICODE character in ax, using cp866 encoding
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movzx eax, al
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cmp al, 0x80
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jb @f ; 0x00-0x7F - trivial map
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cmp al, 0xB0
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jb .rus ; 0x80-0xAF -> 0x410-0x43F
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cmp al, 0xE0
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jb .unk
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cmp al, 0xF0
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jb .rus2 ; 0xE0-0xEF -> 0x440-0x44F
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cmp al, 0xF8
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jnc .unk
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mov al, [eax+uni2ansi_char.table-0xF0]
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add ax, 400h
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ret
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@@:
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cmp al, 20
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jnz .ret
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mov al, 0xB6
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.ret:
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ret
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.rus:
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add ax, 0x410-0x80
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ret
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.rus2:
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add ax, 0x440-0xE0
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ret
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.unk:
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mov al, '_'
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ret
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cp866toUTF8_string:
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; in:
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; esi -> cp866 string (could be zero terminated)
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; edi -> buffer for UTF-8 string
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; ecx = buffer size (signed)
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lodsb
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call ansi2uni_char
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push eax
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call UTF16to8
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pop eax
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js @f
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test eax, eax
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jnz cp866toUTF8_string
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@@:
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ret
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; SF=1 -> counter
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; ZF=1 -> zero char
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UTF16to8_string:
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; in:
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; esi -> UTF-16 string (could be zero terminated)
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; edi -> buffer for UTF-8 string
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; ecx = buffer size (signed)
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xor eax, eax
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@@:
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lodsw
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push eax
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call UTF16to8
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pop eax
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js @f
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test eax, eax
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jnz @b
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@@:
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ret
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UTF16to8:
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; in:
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; eax = UTF-16 char
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; edi -> buffer for UTF-8 char (increasing)
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; ecx = byte counter (decreasing)
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dec ecx
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js .ret
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cmp eax, 80h
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jnc @f
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stosb
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test eax, eax ; SF=0
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.ret:
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ret
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@@:
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dec ecx
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js .ret
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cmp eax, 800h
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jnc @f
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shl eax, 2
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shr al, 2
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or eax, 1100000010000000b
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xchg al, ah
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stosw
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ret
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@@:
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dec ecx
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js .ret
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shl eax, 4
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shr ax, 2
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shr al, 2
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or eax, 111000001000000010000000b
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bswap eax
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shr eax, 8
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stosb
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shr eax, 8
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stosw
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ret
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utf8to16:
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; in: esi -> UTF-8 char (increasing)
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; out: ax = UTF-16 char
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lodsb
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test al, al
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jns .got
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shl al, 2
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jnc utf8to16
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@@:
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shl ax, 8
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lodsb
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test al, al
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jns .got
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shl al, 2
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jc @b
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shr ah, 2
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shl ax, 3
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jnc @f
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shl eax, 3
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lodsb
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test al, al
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jns .got
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shl al, 2
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jc @b
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shr eax, 2
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ret
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@@:
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shr ax, 5
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ret
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.got:
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xor ah, ah
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ret
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strlen:
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; in: esi -> source
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; out: ecx = length
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push edi eax
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or ecx, -1
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mov edi, esi
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xor eax, eax
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repnz scasb
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inc ecx
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not ecx
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pop eax edi
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ret
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