forked from KolibriOS/kolibrios
166 lines
4.7 KiB
NASM
166 lines
4.7 KiB
NASM
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macro crash.md4.f b, c, d
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{
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push c
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xor c, d
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and b, c
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xor b, d
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pop c
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}
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macro crash.md4.g b, c, d
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{
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push c d
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mov edi, b
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and b, c
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and c, d
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and d, edi
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or b, c
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or b, d
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pop d c
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}
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macro crash.md4.h b, c, d
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{
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xor b, c
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xor b, d
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}
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macro crash.md4.round func, a, b, c, d, index, shift, ac
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{
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push b
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func b, c, d
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lea a, [a + b + ac]
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add a, [esi + index*4]
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rol a, shift
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pop b
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}
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proc crash.md4 _md4, _data, _len, _callback, _msglen
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locals
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final rd 1
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endl
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mov [final], 0
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.first:
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mov eax, [_msglen]
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mov ecx, [_len]
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add [eax], ecx
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mov esi, [_data]
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test ecx, ecx
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jz .callback
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.begin:
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sub [_len], 64
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jnc @f
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add [_len], 64
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jmp .endofblock
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@@:
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mov edi, [_md4]
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mov eax, [edi + 0x0]
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mov ebx, [edi + 0x4]
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mov ecx, [edi + 0x8]
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mov edx, [edi + 0xc]
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crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 0, 3, 0x00000000
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crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 1, 7, 0x00000000
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crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 2, 11, 0x00000000
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crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 3, 19, 0x00000000
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crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 4, 3, 0x00000000
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crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 5, 7, 0x00000000
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crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 6, 11, 0x00000000
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crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 7, 19, 0x00000000
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crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 8, 3, 0x00000000
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crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 9, 7, 0x00000000
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crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 10, 11, 0x00000000
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crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 11, 19, 0x00000000
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crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 12, 3, 0x00000000
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crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 13, 7, 0x00000000
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crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 14, 11, 0x00000000
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crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 15, 19, 0x00000000
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crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 0, 3, 0x5a827999
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crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 4, 5, 0x5a827999
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crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 8, 9, 0x5a827999
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crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 12, 13, 0x5a827999
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crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 1, 3, 0x5a827999
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crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 5, 5, 0x5a827999
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crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 9, 9, 0x5a827999
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crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 13, 13, 0x5a827999
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crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 2, 3, 0x5a827999
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crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 6, 5, 0x5a827999
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crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 10, 9, 0x5a827999
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crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 14, 13, 0x5a827999
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crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 3, 3, 0x5a827999
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crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 7, 5, 0x5a827999
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crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 11, 9, 0x5a827999
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crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 15, 13, 0x5a827999
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crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 0, 3, 0x6ed9eba1
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crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 8, 9, 0x6ed9eba1
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crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 4, 11, 0x6ed9eba1
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crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 12, 15, 0x6ed9eba1
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crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 2, 3, 0x6ed9eba1
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crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 10, 9, 0x6ed9eba1
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crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 6, 11, 0x6ed9eba1
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crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 14, 15, 0x6ed9eba1
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crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 1, 3, 0x6ed9eba1
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crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 9, 9, 0x6ed9eba1
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crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 5, 11, 0x6ed9eba1
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crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 13, 15, 0x6ed9eba1
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crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 3, 3, 0x6ed9eba1
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crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 11, 9, 0x6ed9eba1
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crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 7, 11, 0x6ed9eba1
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crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 15, 15, 0x6ed9eba1
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mov edi, [_md4]
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add [edi + 0x0], eax
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add [edi + 0x4], ebx
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add [edi + 0x8], ecx
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add [edi + 0xc], edx
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add esi, 64
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jmp .begin
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.endofblock:
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cmp [final], 1
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je .quit
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.callback:
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mov eax, [_callback]
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test eax, eax
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jz @f
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call eax
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test eax, eax
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jz @f
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mov [_len], eax
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jmp .first
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@@:
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mov edi, [_data]
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mov ecx, [_len]
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rep movsb
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mov eax, [_msglen]
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mov eax, [eax]
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and eax, 63
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mov ecx, 56
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sub ecx, eax
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ja @f
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add ecx, 64
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@@:
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add [_len], ecx
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mov byte[edi], 0x80
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add edi, 1
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sub ecx, 1
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mov al, 0
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rep stosb
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mov eax, [_msglen]
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mov eax, [eax]
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mov edx, 8
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mul edx
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mov dword[edi], eax
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mov dword[edi + 4], edx
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add [_len], 8
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mov [final], 1
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jmp .first
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.quit:
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ret
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endp
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