func: &nbs...
发布于 2022-03-03 17:06:28
func:
mov ecx, eax
lea edx, [ecx+1]
loop:
mov al, [ecx]
inc ecx
test al, al
jnz loop
sub ecx, edx
mov eax, ecx
ret
reverse:
mov ebp, eax eax为输入的参数1
mov edi, edx edx为输入的参数2
mov esi, ebx ebx为输入的参数3
mov eax, ebp
call func
push eax
xor ebx, ebx
xor ecx, ecx
xor ebp, ebp
jmp label4
label1:
lea eax, [ebp*4]
add eax, edi
mov eax, [eax]
cmp eax, ecx
jbe label2
mov ebx, ecx
mov ecx, eax
jmp label3
label2:
cmp eax, ebx
jbe label3
mov ebx, eax
label3:
inc ebp
label4:
cmp ebp, esi
jb label1
pop eax
add eax, ebx
add eax, ecx
ret
以上为汇编码的两个函数func和reverse，分析这两个函数并编写等价的C代码函数
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