8,89 → 8,89 |
$Revision$ |
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; void __stdcall unpack(void* packed_data, void* unpacked_data); |
; void __stdcall unpack(void* packed_data, void* unpacked_data); |
unpack: |
pushad |
mov esi, [esp+32+4] |
mov edi, [esp+32+8] |
mov eax, [esi+8] |
and al, 0xC0 |
cmp al, 0xC0 |
jz .failed |
mov eax, [esi+8] |
push eax |
add esi, 12 |
and al, not 0xC0 |
dec al |
jz .lzma |
pushad |
mov esi, [esp+32+4] |
mov edi, [esp+32+8] |
mov eax, [esi+8] |
and al, 0xC0 |
cmp al, 0xC0 |
jz .failed |
mov eax, [esi+8] |
push eax |
add esi, 12 |
and al, not 0xC0 |
dec al |
jz .lzma |
.failed: |
pop eax |
popad |
ret 8 |
pop eax |
popad |
ret 8 |
.lzma: |
call .lzma_unpack |
call .lzma_unpack |
.common: |
pop eax |
test al, 0x80 |
jnz .ctr1 |
test al, 0x40 |
jz .ok |
lodsd |
mov ecx, eax |
jecxz .ok |
mov dl, [esi] |
mov esi, [esp+32+8] |
pop eax |
test al, 0x80 |
jnz .ctr1 |
test al, 0x40 |
jz .ok |
lodsd |
mov ecx, eax |
jecxz .ok |
mov dl, [esi] |
mov esi, [esp+32+8] |
.c1: |
lodsb |
sub al, 0E8h |
cmp al, 1 |
ja .c1 |
cmp byte [esi], dl |
jnz .c1 |
lodsd |
lodsb |
sub al, 0E8h |
cmp al, 1 |
ja .c1 |
cmp byte [esi], dl |
jnz .c1 |
lodsd |
; "bswap eax" is not supported on i386 |
shr ax, 8 |
ror eax, 16 |
xchg al, ah |
sub eax, esi |
add eax, [esp+32+8] |
mov [esi-4], eax |
loop .c1 |
shr ax, 8 |
ror eax, 16 |
xchg al, ah |
sub eax, esi |
add eax, [esp+32+8] |
mov [esi-4], eax |
loop .c1 |
.ok: |
popad |
ret 8 |
popad |
ret 8 |
.ctr1: |
lodsd |
mov ecx, eax |
jecxz .ok |
mov dl, [esi] |
mov esi, [esp+32+8] |
lodsd |
mov ecx, eax |
jecxz .ok |
mov dl, [esi] |
mov esi, [esp+32+8] |
.c2: |
lodsb |
lodsb |
@@: |
cmp al, 0xF |
jnz .f |
lodsb |
cmp al, 80h |
jb @b |
cmp al, 90h |
jb @f |
cmp al, 0xF |
jnz .f |
lodsb |
cmp al, 80h |
jb @b |
cmp al, 90h |
jb @f |
.f: |
sub al, 0E8h |
cmp al, 1 |
ja .c2 |
sub al, 0E8h |
cmp al, 1 |
ja .c2 |
@@: |
cmp byte [esi], dl |
jnz .c2 |
lodsd |
shr ax, 8 |
ror eax, 16 |
xchg al, ah |
sub eax, esi |
add eax, [esp+32+8] |
mov [esi-4], eax |
loop .c2 |
jmp .ok |
cmp byte [esi], dl |
jnz .c2 |
lodsd |
shr ax, 8 |
ror eax, 16 |
xchg al, ah |
sub eax, esi |
add eax, [esp+32+8] |
mov [esi-4], eax |
loop .c2 |
jmp .ok |
|
.lzma_unpack: |
|
98,22 → 98,22 |
.lp = 0 ; literal pos state bits |
.lc = 3 ; literal context bits |
.posStateMask = ((1 shl .pb)-1) |
.literalPosMask = ((1 shl .lp)-1) |
.literalPosMask = ((1 shl .lp)-1) |
|
.kNumPosBitsMax = 4 |
.kNumPosBitsMax = 4 |
.kNumPosStatesMax = (1 shl .kNumPosBitsMax) |
|
.kLenNumLowBits = 3 |
.kLenNumLowSymbols = (1 shl .kLenNumLowBits) |
.kLenNumMidBits = 3 |
.kLenNumMidSymbols = (1 shl .kLenNumMidBits) |
.kLenNumHighBits = 8 |
.kLenNumHighSymbols = (1 shl .kLenNumHighBits) |
.kLenNumLowBits = 3 |
.kLenNumLowSymbols = (1 shl .kLenNumLowBits) |
.kLenNumMidBits = 3 |
.kLenNumMidSymbols = (1 shl .kLenNumMidBits) |
.kLenNumHighBits = 8 |
.kLenNumHighSymbols = (1 shl .kLenNumHighBits) |
|
.LenChoice = 0 |
.LenChoice2 = 1 |
.LenLow = 2 |
.LenMid = (.LenLow + (.kNumPosStatesMax shl .kLenNumLowBits)) |
.LenLow = 2 |
.LenMid = (.LenLow + (.kNumPosStatesMax shl .kLenNumLowBits)) |
.LenHigh = (.LenMid + (.kNumPosStatesMax shl .kLenNumMidBits)) |
.kNumLenProbs = (.LenHigh + .kLenNumHighSymbols) |
|
136,12 → 136,12 |
.IsRep0Long = (.IsRepG2 + .kNumStates) |
.PosSlot = (.IsRep0Long + (.kNumStates shl .kNumPosBitsMax)) |
.SpecPos = (.PosSlot + (.kNumLenToPosStates shl .kNumPosSlotBits)) |
.Align_ = (.SpecPos + .kNumFullDistances - .kEndPosModelIndex) |
.Align_ = (.SpecPos + .kNumFullDistances - .kEndPosModelIndex) |
.Lencoder = (.Align_ + .kAlignTableSize) |
.RepLencoder = (.Lencoder + .kNumLenProbs) |
.Literal = (.RepLencoder + .kNumLenProbs) |
|
.LZMA_BASE_SIZE = 1846 ; must be ==Literal |
.LZMA_BASE_SIZE = 1846 ; must be ==Literal |
.LZMA_LIT_SIZE = 768 |
|
.kNumTopBits = 24 |
148,10 → 148,10 |
.kTopValue = (1 shl .kNumTopBits) |
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.kNumBitModelTotalBits = 11 |
.kBitModelTotal = (1 shl .kNumBitModelTotalBits) |
.kBitModelTotal = (1 shl .kNumBitModelTotalBits) |
.kNumMoveBits = 5 |
|
push edi |
push edi |
; int state=0; |
xor ebx, ebx |
mov [.previousByte], bl |
173,7 → 173,7 |
; rd->Buffer = stream |
; rd->BufferLim = stream+bufferSize |
; rd->Range = 0xFFFFFFFF |
pop edi |
pop edi |
mov ebp, [esi-8] ; dest_length |
add ebp, edi ; ebp = destination limit |
lodsd |
515,7 → 515,8 |
|
uglobal |
align 4 |
;unpack.p rd unpack.LZMA_BASE_SIZE + (unpack.LZMA_LIT_SIZE shl (unpack.lc+unpack.lp)) |
diff16 "unpacker.inc structures", 0, $ |
;unpack.p rd unpack.LZMA_BASE_SIZE + (unpack.LZMA_LIT_SIZE shl (unpack.lc+unpack.lp)) |
unpack.p dd ? |
unpack.code_ dd ? |
unpack.range dd ? |