4.45 beta

Asm/x64/7zCrcT8U.asm

@@ -0,0 +1,101 @@
+.code
+
+
+
+
+CRC1b macro
+    movzx EDX, BYTE PTR [RSI]
+    inc RSI
+    movzx EBX, AL
+    xor EDX, EBX 
+    shr EAX, 8
+    xor EAX, [RDI + RDX * 4]
+    dec R8
+endm
+
+
+
+
+align 16
+CrcUpdateT8 PROC
+
+    push RBX
+    push RSI
+    push RDI
+    push RBP
+
+    mov	EAX, ECX
+    mov	RSI, RDX
+    mov RDI, R9
+
+
+    test R8, R8
+    jz sl_end
+  sl:
+    test RSI, 7
+    jz sl_end
+    CRC1b
+    jnz sl
+  sl_end:
+
+    cmp R8, 16
+    jb crc_end
+    mov R9, R8
+    and R8, 7
+    add R8, 8
+    sub R9, R8
+            
+    add R9, RSI
+    xor EAX, [RSI]
+    mov EBX, [RSI + 4]
+    movzx ECX, BL
+    align 16
+  main_loop:
+    mov EDX, [RDI + RCX*4 + 0C00h]
+    movzx EBP, BH
+    xor EDX, [RDI + RBP*4 + 0800h]
+    shr EBX, 16
+    movzx ECX, BL
+    xor EDX, [RSI + 8]
+    xor EDX, [RDI + RCX*4 + 0400h]
+    movzx ECX, AL
+    movzx EBP, BH
+    xor EDX, [RDI + RBP*4 + 0000h]
+
+    mov EBX, [RSI + 12]
+
+    xor EDX, [RDI + RCX*4 + 01C00h]
+    movzx EBP, AH
+    shr EAX, 16
+    movzx ECX, AL
+    xor EDX, [RDI + RBP*4 + 01800h]
+    movzx EBP, AH
+    mov EAX, [RDI + RCX*4 + 01400h]
+    add RSI, 8
+    xor EAX, [RDI + RBP*4 + 01000h]
+    movzx ECX, BL
+    xor EAX,EDX
+
+    cmp RSI, R9
+    jne	main_loop
+    xor	EAX, [RSI]
+
+
+  
+  crc_end:
+
+    test R8, R8
+    jz fl_end
+  fl:
+    CRC1b
+    jnz fl
+  fl_end:
+
+    pop RBP
+    pop RDI
+    pop RSI
+    pop RBX
+    ret
+CrcUpdateT8 ENDP
+
+end