mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
102 lines
1.4 KiB
NASM
102 lines
1.4 KiB
NASM
.code
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CRC1b macro
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movzx EDX, BYTE PTR [RSI]
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inc RSI
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movzx EBX, AL
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xor EDX, EBX
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shr EAX, 8
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xor EAX, [RDI + RDX * 4]
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dec R8
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endm
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align 16
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CrcUpdateT8 PROC
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push RBX
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push RSI
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push RDI
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push RBP
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mov EAX, ECX
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mov RSI, RDX
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mov RDI, R9
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test R8, R8
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jz sl_end
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sl:
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test RSI, 7
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jz sl_end
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CRC1b
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jnz sl
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sl_end:
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cmp R8, 16
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jb crc_end
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mov R9, R8
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and R8, 7
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add R8, 8
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sub R9, R8
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add R9, RSI
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xor EAX, [RSI]
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mov EBX, [RSI + 4]
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movzx ECX, BL
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align 16
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main_loop:
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mov EDX, [RDI + RCX*4 + 0C00h]
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movzx EBP, BH
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xor EDX, [RDI + RBP*4 + 0800h]
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shr EBX, 16
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movzx ECX, BL
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xor EDX, [RSI + 8]
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xor EDX, [RDI + RCX*4 + 0400h]
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movzx ECX, AL
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movzx EBP, BH
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xor EDX, [RDI + RBP*4 + 0000h]
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mov EBX, [RSI + 12]
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xor EDX, [RDI + RCX*4 + 01C00h]
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movzx EBP, AH
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shr EAX, 16
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movzx ECX, AL
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xor EDX, [RDI + RBP*4 + 01800h]
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movzx EBP, AH
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mov EAX, [RDI + RCX*4 + 01400h]
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add RSI, 8
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xor EAX, [RDI + RBP*4 + 01000h]
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movzx ECX, BL
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xor EAX,EDX
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cmp RSI, R9
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jne main_loop
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xor EAX, [RSI]
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crc_end:
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test R8, R8
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jz fl_end
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fl:
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CRC1b
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jnz fl
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fl_end:
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pop RBP
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pop RDI
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pop RSI
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pop RBX
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ret
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CrcUpdateT8 ENDP
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end
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