418 lines
9.8 KiB
NASM
418 lines
9.8 KiB
NASM
; Kolibri kernel packer
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; (C) copyright diamond 2006, 2007
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;
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; Disassemled and corrected in 2010 specially for FASM
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; by Marat Zakiyanov aka Mario79, aka Mario
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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; Uses LZMA compression library by Igor Pavlov
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; (for more information on LZMA and 7-Zip visit http://www.7-zip.org)
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; (plain-C packer is ported by diamond)
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;---------------------------------------------------------------------
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use32
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org 0
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db 'MENUET01'
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dd 1
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dd START
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dd IM_END
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dd I_END
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dd stacktop
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dd 0 ;params
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dd 0 ;cur_dir_path
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;---------------------------------------------------------------------
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include '../../../../macros.inc'
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; do not touch "purge mov"!!!
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purge mov ; for the correct patch of loader
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; do not touch "purge mov"!!!
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;*********************************************************************
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die_with_err:
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pop esi
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@@:
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lodsb
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test al,al
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jz @f
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mov cl,al
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mcall 63,1
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jmp @b
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;*********************************************************************
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@@:
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mcall 63,,13
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mcall ,,10
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mcall -1
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;*********************************************************************
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START:
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mcall 70,fn70_read
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cmp eax,6
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jz read_ok
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;--------------------------------------
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read_err:
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call die_with_err
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db 'KerPack: cannot load kernel.mnt',0
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;*********************************************************************
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read_ok:
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push 18
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call lzma_set_dict_size
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; find jump to 32-bit code
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mov edi,infile - 1
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;--------------------------------------
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@@:
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inc edi
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cmp dword [edi],0xE88EE08E ; mov fs,ax/mov gs,ax
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jnz @b
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cmp dword [edi+4],0x00BCD08E ; mov ss,ax/mov esp,00xxxxxx
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jnz @b
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add edi,11
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mov [inptr],edi
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sub edi, infile
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mov [indelta],edi
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lea eax,[ebx+0x10000]
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mov dword [loader_patch3+2],eax
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sub ebx,edi
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mov [insize],ebx
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call preprocess_calltrick2
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mov al,[cti]
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mov [loader_patch5-1],al
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mov eax,[ctn]
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mov [loader_patch4+1],eax
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mov eax,[inptr]
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add eax, outfile - infile + loader_size - 5
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push workmem
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push [insize]
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push eax
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push [inptr]
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call lzma_compress
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add eax, loader_size-5
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mov [loader_patch1+6],eax
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add eax,[indelta]
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mov [outsize],eax
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mov eax,[indelta]
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mov ecx,dword [eax + outfile + loader_size - 4]
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bswap ecx
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mov [loader_patch2+4],ecx
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add eax, 0x10000
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mov [loader_patch1+1],eax
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mov esi,infile
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mov edi,outfile
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mov ecx,[indelta]
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rep movsb
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mov esi,loader_start
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mov ecx,loader_size
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rep movsb
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mcall 70,fn70_write
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test eax,eax
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jz @f
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call die_with_err
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db 'KerPack: cannot save kernel.mnt',0
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;*********************************************************************
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@@:
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call die_with_err
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db 'KerPack: all is OK',0
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;*********************************************************************
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preprocess_calltrick2:
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; input preprocessing
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mov edi,ct1
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xor eax,eax
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push edi
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mov ecx,256/4
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rep stosd
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pop edi
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mov ecx,ebx
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mov esi,[inptr]
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mov ebx,inbuftmp
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xchg eax,edx
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;--------------------------------------
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input_pre2:
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lodsb
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;--------------------------------------
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@@:
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cmp al,0Fh
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jnz ip1
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dec ecx
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jz input_pre_done2
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lodsb
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cmp al,80h
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jb @b
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cmp al,90h
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jb @f
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;--------------------------------------
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ip1:
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sub al,0E8h
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cmp al,1
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ja input_pre_cont2
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;--------------------------------------
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@@:
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cmp ecx,5
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jb input_pre_done2
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lodsd
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add eax,esi
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sub eax,[inptr]
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cmp eax,[insize]
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jae xxx2
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cmp eax,1000000h
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jae xxx2
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sub ecx,4
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xchg al,ah
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rol eax,16
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xchg al,ah
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mov [esi-4],eax
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inc edx
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mov [ebx],esi
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add ebx,4
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jmp input_pre_cont2
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;*********************************************************************
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xxx2:
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sub esi,4
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movzx eax,byte [esi]
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mov byte [eax+edi],1
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;--------------------------------------
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input_pre_cont2:
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loop input_pre2
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;--------------------------------------
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input_pre_done2:
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mov [ctn],edx
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xor eax,eax
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mov ecx,256
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repnz scasb
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jnz pack_calltrick_done
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not cl
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mov [cti],cl
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;--------------------------------------
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@@:
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cmp ebx,inbuftmp
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jz pack_calltrick_done
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sub ebx,4
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mov eax,[ebx]
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mov [eax-4],cl
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jmp @b
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;*********************************************************************
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pack_calltrick_done:
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ret
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;*********************************************************************
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;lzma_compress:
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include 'lzma_compress.inc'
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;---------------------------------------------------------------------
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;lzma_set_dict_size:
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include 'lzma_set_dict_size.inc'
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;---------------------------------------------------------------------
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;
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include 'loader_lzma.inc'
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;*********************************************************************
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fn70_read:
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dd 0
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dd 0
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dd 0
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dd 200*1024
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dd infile
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filename db '/rd/1/kernel.mnt',0
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fn70_write:
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dd 2
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dd 0
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dd 0
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outsize dd ?
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dd outfile
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db 0
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dd filename
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;---------------------------------------------------------------------
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align 4
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LiteralNextStates:
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db 0,0,0,0,1,2,3,4,5,6,4,5
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MatchNextStates:
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db 7,7,7,7,7,7,7,10,10,10,10,10
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RepNextStates:
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db 8,8,8,8,8,8,8,11,11,11,11,11
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ShortRepNextStates:
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db 9,9,9,9,9,9,9,11,11,11,11,11
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;---------------------------------------------------------------------
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;*********************************************************************
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IM_END:
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;*********************************************************************
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;params:
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; rb 256
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;---------------------------------------------------------------------
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;cur_dir_path:
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; rb 4096
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;---------------------------------------------------------------------
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align 4
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rb 4096
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stacktop:
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;---------------------------------------------------------------------
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align 4
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inptr dd ?
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indelta dd ?
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insize dd ?
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ct1 rb 256
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ctn dd ?
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cti db ?
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infile rb 200*1024
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inbuftmp rb 200*1024
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outfile rb 200*1024
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workmem rb 6A8000h
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;---------------------------------------------------------------------
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; Compress data area start
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;---------------------------------------------------------------------
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align 4
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_lenEncoder:
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rd 8451
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;-----------------------------------------------------
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_prices:
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rd 4384
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rd 17
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;-----------------------------------------------------
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_finished: rb 1
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_writeEndMark: rb 1
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_longestMatchWasFound: rb 1
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_previousByte: rb 1
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_longestMatchLength: rd 1
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;-----------------------------------------------------
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g_FastPos:
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rb 1024
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;-----------------------------------------------------
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_posSlotPrices:
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rd 256
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;-----------------------------------------------------
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_isRep0Long:
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rd 192
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;-----------------------------------------------------
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distances:
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rd 274
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;-----------------------------------------------------
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_optimumCurrentIndex: rd 1
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_additionalOffset: rd 1
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;-----------------------------------------------------
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_isRepG1:
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rd 12
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;-----------------------------------------------------
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_isMatch:
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rd 192
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;-----------------------------------------------------
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_alignPriceCount: rd 1
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_numLiteralContextBits: rd 1
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;-----------------------------------------------------
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_literalEncoder:
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rd 114
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;-----------------------------------------------------
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nowPos64:
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rd 2
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;-----------------------------------------------------
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_distancesPrices:
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rd 512
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;-----------------------------------------------------
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_repDistances:
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rd 4
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;-----------------------------------------------------
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_posSlotEncoder:
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rd 1028
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;-----------------------------------------------------
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lastPosSlotFillingPos:
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rd 2
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;-----------------------------------------------------
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_numFastBytes: rd 1
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_posStateMask: rd 1
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;-----------------------------------------------------
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_isRepG0:
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rd 12
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;-----------------------------------------------------
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_repMatchLenEncoder:
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rd 8451
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rd 4384
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rd 17
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;-----------------------------------------------------
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_isRepG2:
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rd 12
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;-----------------------------------------------------
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_dictionarySize: rd 1
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_numLiteralPosStateBits: rd 1
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_distTableSize: rd 1
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_optimumEndIndex: rd 1
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;-----------------------------------------------------
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;static CState state
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state.State: rb 1
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state.Prev1IsChar: rb 1
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state.Prev2: rb 2
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state.PosPrev2: rd 1
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state.BackPrev2: rd 1
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state.Price: rd 1
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state.PosPrev: rd 1
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state.BackPrev: rd 1
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state.Backs:
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rd 4
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;----------------------------------------------------
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rd 40950
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;-----------------------------------------------------
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_alignPrices:
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rd 16
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;-----------------------------------------------------
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_isRep:
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rd 12
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;-----------------------------------------------------
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_posAlignEncoder:
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rd 256
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;-----------------------------------------------------
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i_01: rd 1
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;-----------------------------------------------------
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_state: rb 1
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_cache: rb 1
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_state.Prev2: rb 2
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_posEncoders: rd 1
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_numPrevBits: rd 1
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_numPosBits: rd 1
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_posMask: rd 1
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_posStateBits: rd 1
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_range: rd 1
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_cacheSize: rd 1
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_cyclicBufferSize: rd 1
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;-----------------------------------------------------
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low:
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rd 2
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;-----------------------------------------------------
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Models:
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rd 512
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;-----------------------------------------------------
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_matchMaxLen: rd 1
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pack_pos: rd 1
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_cutValue: rd 1
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_hash: rd 1
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;-----------------------------------------------------
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crc_table:
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rd 256
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;-----------------------------------------------------
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_buffer: rd 1
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_pos: rd 1
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_streamPos: rd 1
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pack_length: rd 1
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;---------------------------------------------------------------------
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; Compress data area end
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;---------------------------------------------------------------------
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I_END:
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;---------------------------------------------------------------------
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