反汇编系列(四) while

#include"stdio.h"
int function(int a,int b)
{
    int c=a+b;
    int i=0;
    while(i<50)
    {
        c=c+i;
    }
    return c;
}
void main()
{
    function(1,2);
} 

---

--- c:\users\wangchao\desktop\test\test\main.cpp -------------------------------

#include "stdio.h"

int function(int a,int b)

{

00AE1A40 push ebp

00AE1A41 mov ebp,esp

00AE1A43 sub esp,0D8h

00AE1A49 push ebx

00AE1A4A push esi

00AE1A4B push edi

00AE1A4C lea edi,[ebp-0D8h]

00AE1A52 mov ecx,36h

00AE1A57 mov eax,0CCCCCCCCh

00AE1A5C rep stos dword ptr es:[edi]

    int c=a+b;

00AE1A5E mov eax,dword ptr [a]

00AE1A61 add eax,dword ptr [b]

00AE1A64 mov dword ptr [c],eax

    int i=0;

00AE1A67 mov dword ptr [i],0

    while(i<50)

00AE1A6E cmp dword ptr [i],32h

00AE1A72 jge function+3Fh (0AE1A7Fh)

    {

        c=c+i;

00AE1A74 mov eax,dword ptr [c]

00AE1A77 add eax,dword ptr [i]

00AE1A7A mov dword ptr [c],eax

    }

00AE1A7D jmp function+2Eh (0AE1A6Eh)

    return c;

00AE1A7F mov eax,dword ptr [c]

}

00AE1A82 pop edi

00AE1A83 pop esi

00AE1A84 pop ebx

00AE1A85 mov esp,ebp

00AE1A87 pop ebp

00AE1A88 ret