Question

如何把一个3字节十六进制数转换成ASCII码? 求问啊~~~ 请用汇编语言，51的。

Answer 1

CsnCharToData Proc lpszChar:DWORD,lpBuff:DOWRD,sizechar:DWORD
pushad
mov edi,lpBuff
mov esi,lpszChar
mov ecx,sizechar
_CsnCTD:
xor eax,eax
mov al,Byte ptr [esi]
shl ax,4
shr al,4
_CsnTow:
cmp al,9h
ja _d9
add al,30h
jmp _end
_d9:
add al,37h
_end:
cmp ah,0fh
ja _CsnOv
xchg ah,al
jmp _CsnTow
_CsnOv:
mov Word ptr [edi],ax
add edi,2
inc esi
loop _CsnCTD
popad
ret
CsnCharToData Endp