mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-24 23:56:49 +03:00
16091ddd9e
@panel: to match K0581 distro: SYSMETER -> GMON @numcalc: moved to the appropriate place in repository HeEd: added english variant NetSendC, NetSendS: added english variant + optimization pic4: changes in set background + optimization tetris, @rcher, board, sysxtree, vrr: new versions from K0581 distro bgitest: fixed small error + ability to set language via lang.inc c4: small correction in label height to match K0581 distro git-svn-id: svn://kolibrios.org@131 a494cfbc-eb01-0410-851d-a64ba20cac60
616 lines
10 KiB
PHP
616 lines
10 KiB
PHP
; @RCHER main algorythm
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; Written in pure assembler by Ivushkin Andrey aka Willow
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macro get_a _type,_size,c1,c2,c3,c4,c5
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{
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get_#_type:
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local .no,.no0,.ex
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push edx
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and [Flags],not 1
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if _type eq Len
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cmp eax,c4
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jne .no
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mov eax,c5
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jmp .ex
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.no:
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end if
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sub eax,c1
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ja .no0
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add eax,c2
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jmp .ex
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.no0:
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add eax,c3
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push eax
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mov ecx,eax
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shr ecx,_size
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xor eax,eax
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call read_bits
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pop edx
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and edx,1 shl _size-1
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shl edx,cl
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movzx ecx,[tblH#_type+ecx*2]
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add edx,ecx
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add eax,edx
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.ex:
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or [Flags],1
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pop edx
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ret
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}
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; *************************
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Deflate:
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mov edi,[outp]
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.init:
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mov [bits],8
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lodsb
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call setcurb
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.blkbegin:
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and [lastblk],0
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and [Flags],not 1
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rbits 0,1
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test eax,eax
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je .nolast
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mov [lastblk],1
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.nolast:
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rbits 0,2
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cmp eax,10b
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je .DynHuff
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cmp eax,01b
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je .static
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test eax,eax
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jnz .errorID
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Msg 30
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movzx ecx,[bits]
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call read_bits
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movzx ecx,word[esi-1]
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add esi,3
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rep movsb
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jmp .check_last
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.errorID:
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Msg 6
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ret
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; Static Huffman
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.static:
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if SHOW_METH eq 1
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Msg 20
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end if
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mov edi,[outp]
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or [Flags],1
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.next:
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rbits 0,7
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; stop
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cmp eax,0x17
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ja .no7
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add eax,256
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cmp eax,256
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jne .noend
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.check_last:
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mov [outp],edi
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cmp [lastblk],1
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je .ex
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jmp .blkbegin
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.noend:
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call get_Len
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mov ebx,eax
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rbits 0,5
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call get_Dist
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neg eax
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push esi
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lea esi,[edi+eax]
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mov ecx,ebx
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rep movsb
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pop esi
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jmp .next
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.no7:
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rbits eax,1
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cmp eax,0xc8
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jb .no9
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rbits eax,1
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sub eax,0xd0
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jmp .no81
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.no9:
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cmp eax,0xc0
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jb .no81
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add eax,0x58
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jmp .noend
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.no81:
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sub eax,0x30
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stosb
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jmp .next
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.ex:
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ret
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; ************* dynamic Huffman ************
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.DynHuff:
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; dps '##'
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if SHOW_METH eq 1
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Msg 19
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end if
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pusha
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xor eax,eax
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mov ecx,(output-bl_count) / 4
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mov edi,bl_count
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rep stosd
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popa
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; max_len=0
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and [max_len],0
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rbits 0,5
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; hlit-257
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add eax,257
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mov [hlit],ax
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rbits 0,5
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; hdist-1
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inc eax
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mov [hdist],al
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rbits 0,4
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; hclen-4
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add eax,4
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mov [hclen],al
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mov ecx,eax
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push edi
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mov edi,tmp_clit
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; read code lengths for code lengths
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.alphloop:
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push ecx
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rbits 0,3
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stosb
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pop ecx
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loop .alphloop
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; sort code lengths for code lengths
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push esi
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movzx ecx,[hclen]
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xor eax,eax
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mov edi,tmp_clit
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mov esi,tblSort
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.sortloop:
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lodsb
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movzx bx,byte[edi]
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mov [sorted_clit+eax*2],bx
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inc edi
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loop .sortloop
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pop esi edi
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.generate:
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mov ecx,19
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mov ebx,calph
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mov edx,seql
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mov eax,sorted_clit
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call Huffc
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and [tblCount],0
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or [Flags],1
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mov edi,Lit_c
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mov ebp,sorted_clit
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.again:
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cmp edi,output+OUTBUF
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jb ._ok
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Msg 16
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jmp .ex
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._ok:
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mov edx,seql
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mov ebx,calph
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call get_code
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call ExpLen
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cmp [hlit],ax
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ja .again
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if SHOW_CHARS eq 1
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mov edi,Lit_c
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call Show_codes
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end if
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mov edi,Dist_c
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and [tblCount],0
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.again2:
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mov ebx,calph
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call get_code
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call ExpLen
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cmp [hdist],al
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ja .again2
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movzx ecx,[hlit]
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mov ebx,Literal
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mov edx,seql
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mov eax,Lit_c
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call Huffc
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movzx ecx,[hdist]
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mov ebx,Distance
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mov edx,seqd
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mov eax,Dist_c
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call Huffc
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push [hlit]
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pop [tblLen]
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mov ebp,Lit_c
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mov edx,seql
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mov ebx,Literal
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mov edi,[outp]
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and [tblCount],0
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.again3: ; <------------
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call get_code
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cmp eax,256
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je .check_last
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ja .dist
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stosb
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jmp .again3
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.dist:
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call get_Len
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push eax ebx edx ebp
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mov ecx,32
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mov ebp,Dist_c
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mov edx,seqd
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mov ebx,Distance
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mov [tblLen],32
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call get_code
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call get_Dist
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push [hlit]
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pop [tblLen]
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neg eax
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pop ebp edx ebx ecx
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push esi
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lea esi,[edi+eax]
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rep movsb
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pop esi
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jmp .again3
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; ******************************************
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Huffc:
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; EBX - dest array, ECX - length, EDX - br_seq dest, EAX - source array
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push esi edi eax ecx
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mov edi,bl_count
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xor eax,eax
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mov ecx,BITS
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rep stosw
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pop ecx
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mov esi,[esp]
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mov [tblLen],cx
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mov [max_len],ax
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; Count the number of codes for each code length
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.cnt_loop:
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lodsw
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cmp [max_len],ax
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jae .skip
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mov [max_len],ax
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.skip:
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inc byte[bl_count+eax]
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loop .cnt_loop
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movzx ecx,[max_len]
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xor eax,eax
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and [bl_count],al
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xor esi,esi ; edx - bits
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mov edi,next_code+2
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push ebx
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; Find the numerical value of the smallest code for each code length
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.nc_loop:
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movzx bx,byte[bl_count+esi]
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add ax,bx
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shl ax,1
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stosw
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inc esi
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loop .nc_loop
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pop ebx
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; clear table
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movzx ecx,[tblLen]
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xor eax,eax
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dec eax
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mov edi,ebx
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rep stosw
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inc eax
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movzx ecx,[tblLen]
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mov esi,[esp]
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mov edi,ebx
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; Assign numerical values to all codes
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.loop3:
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lodsw
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test eax,eax
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jz .lp
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push [next_code+eax*2]
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pop word[edi]
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inc [next_code+eax*2]
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.lp:
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add edi,2
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loop .loop3
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; Clear all codes
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xor eax,eax
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mov edi,edx
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movzx ecx,[max_len]
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mov [edi-1],al
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; Prepare read bit sequences
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.rebiloop:
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inc eax
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cmp [bl_count+eax],0
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jz .sk
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stosb
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inc byte[edx-1]
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.sk:
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loop .rebiloop
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movzx ecx,byte[edx-1]
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dec ecx
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jecxz .noreb2
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.reb2loop:
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mov al,[edx+ecx-1]
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sub [edx+ecx],al
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loop .reb2loop
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.noreb2:
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pop eax edi esi
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ret
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; ******************************************
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; get Codes of variable sizes
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get_code:
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; EDX - br_seq, EBX - source table, EBP - codelength table
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push edx edi
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xor eax,eax
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movzx ecx,byte[edx-1]
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mov [codel],ax
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.rb3:
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push ecx
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movzx ecx,byte[edx]
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add [codel],cx
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call read_bits
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movzx ecx,[tblLen]
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inc ecx
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mov edi,ebx
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.scas:
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repne scasw
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jecxz .notfound
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push edi ecx
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sub edi,ebx
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sub edi,2
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mov cx,[codel]
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cmp cx,[ds:ebp+edi]
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jne .notfound2
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mov eax,edi
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shr eax,1
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add esp,12
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.pp:
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pop edi edx
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ret
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.notfound2:
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pop ecx
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pop edi
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jmp .scas
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.notfound:
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pop ecx
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inc edx
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loop .rb3
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Msg 7
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jmp .pp
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codel dw ?
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; ******************************************
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ExpLen:
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cmp eax,16
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jae .noliteral
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inc [tblCount]
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stosw
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jmp .nomatch
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.noliteral:
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and [Flags],not 1
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mov ebx,3
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cmp eax,17
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jae .code1718
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mov ecx,2
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xor eax,eax
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call read_bits
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lea ecx,[eax+ebx]
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mov ax,[edi-2]
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.cc:
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add [tblCount],cx
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rep stosw
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or [Flags],1
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jmp .nomatch
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.code1718:
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jne .code18
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mov ecx,3
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.cc2:
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xor eax,eax
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call read_bits
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lea ecx,[eax+ebx]
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xor eax,eax
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jmp .cc
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.code18:
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mov ebx,11
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mov ecx,7
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jmp .cc2
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.nomatch:
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mov ax,[tblCount]
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ret
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get_a Len,2,256+8,10,3,285,258
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get_a Dist,1,3,4,1
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; ******************************************
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read_bits: ; eax-dest; ecx-count
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push edx ecx
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.shift:
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if RBLOCK eq 4
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ror [cur_byte],1
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else
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ror byte[cur_byte],1
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end if
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pushf
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test [Flags],1
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je .noh1
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popf
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rcl eax,1
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jmp .dec
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.noh1:
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popf
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rcr eax,1
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.dec:
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dec [bits]
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jnz .loop1
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.push:
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push eax
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mov eax,[esi]
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call setcurb
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pop eax
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if RBLOCK eq 1
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inc esi
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inc [IDATcount]
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else
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inc esi
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inc [IDATcount]
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end if
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cmp esi,area+INBUF-BSIZE
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jbe .ok
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pusha
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if SHOW_RBLOCK eq 1
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Msg 9
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end if
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mov eax,0
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mov ebx,1
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call FileSeek
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mov [esp+4],esi
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popa
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.ok:
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test [Flags],PNG_MODE
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jz .idatok
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mov edx,[IDATcount]
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cmp edx,[IDATsize]
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jbe .idatok
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pusha
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lodsd
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call PngParse.nxt_sec
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mov [IDATcount],1
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mov [esp+4],esi
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mov [esp+20],edx
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popa
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cmp edx,21
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jne .idatok
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mov eax,256
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pop ecx
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jmp .exx
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.idatok:
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mov [bits],8
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.loop1:
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loop .shift2
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jmp .popc
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.shift2:
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jmp .shift
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.popc:
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pop ecx
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test [Flags],1
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jne .exx
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.noh2:
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rol eax,cl
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.exx:
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pop edx
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ret
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if SHOW_CHARS eq 1
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Show_codes:
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pusha
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movzx ecx,[tblLen]
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mov ecx,256
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xor eax,eax
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.lp2:
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mov [braces+1],al
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push eax ecx
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invoke StrFormat,eax,strbuf,20
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invoke WriteConsole,[cons],strbuf,16,param1,NULL
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invoke WriteConsole,[cons],braces,6,param1,NULL
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mov eax,[esp+4]
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movzx eax,word[edi+eax*2]
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test eax,eax
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jz .skip
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invoke WriteConsole,[cons],exist,6,param1,NULL
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.skip:
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invoke WriteConsole,[cons],braces+6,2,param1,NULL
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pop ecx eax
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inc eax
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loop .lp
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jmp .ex
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.lp:
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jmp .lp2
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.ex:
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popa
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ret
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cons dd ?
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param1 dd ?
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braces db '( ) = ',0xa, 0xd
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strbuf rb 20
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exist db 'exists'
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end if
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makeCRC:
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pusha
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Msg 8
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mov edi,CRC32table
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add edi,255*4
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std
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mov ecx,255
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mov ebx,0xedb88320
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.m1:
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mov eax,ecx
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push ecx
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mov ecx,8
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.m2:
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shr eax,1
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jnc .m3
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xor eax,ebx
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.m3:
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loop .m2
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pop ecx
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stosd
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loop .m1
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popa
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cld
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ret
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UCRC:
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; in: esi - data to calculate CRC
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; ecx - its length
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; [CRC32] - previous CRC32
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; out: [CRC32]- partial CRC32 (no pre- & post-conditioning!)
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pusha
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cmp dword[CRC32table+4],0x77073096
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je .tbl_rdy
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call makeCRC
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.tbl_rdy:
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mov eax,[CRC32]
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not eax
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.m1:
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movzx ebx,al
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shr eax,8
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xor bl,[esi]
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xor eax,[CRC32table+ebx*4]
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inc esi
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loop .m1
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not eax
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mov [CRC32],eax
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popa
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ret
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UAdler:
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; in: esi - data to calculate CRC
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; ecx - its length
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; [Adler32] - previous Adler32
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; out: [Adler32]- partial Adler32
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pusha
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mov ebp,65521
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movzx ebx,word[Adler32] ; s1-ebx
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movzx edi,word[Adler32+2] ; s2-edi
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.m1:
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movzx eax,byte[esi]
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add eax,ebx
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xor edx,edx
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div ebp
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mov ebx,edx
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lea eax,[edi+ebx]
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xor edx,edx
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div ebp
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mov edi,edx
|
|
inc esi
|
|
loop .m1
|
|
shl edi,16
|
|
add edi,ebx
|
|
mov [Adler32],edi
|
|
popa
|
|
ret
|
|
|
|
tblSort db 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15
|
|
tblHLen dw 7,11,19,35,67,131
|
|
tblHDist dw 3,5,9,17,33,65,129,257,513,1025,2049,4097,8193,16385
|