正文

#include<stdio.h>

#include<string.h>

/*

函数名:att_asm_p();

功能：类似于

movesp,[ebx]

返回值:无

传入值:无

*/

voidatt_asm_p(void)

{

intb=11;

intd=599;

int*p=&d;

asm("movl%0,%%ecx\n\t"::"r"(p));

asm("movl(%ecx),%eax\n\t");

asm("movl%%eax,%0\n\t":"=r"(b));

printf("b:%d\n",b);

}

/*

函数名:att_asm_mov();

功能

说明

"movl%2,%%edi\n\t"//%2

"movl%%edi,%0\n\t"//%0

:"=a"(__out)

:"r"(__in1),"r"(__in2));

返回值:无

传入值:无

*/

voidatt_asm_mov()

{

int__out=1,__in1=2,__in2=3;

__asm__(

"movl%1,%%esi\n\t"

"movl%2,%%edi\n\t"

"movl%%edi,%0\n\t"

:"=a"(__out)

:"r"(__in1),"r"(__in2));

printf("cr0:%d\n",__out);

}

intmain(intargc,char*argv[])

{

att_asm_p();

att_asm_mov();

return0;

}