Linux中C、C++内嵌汇编

 

void process(int* q)
{
        asm (//std命名空间下，不能使用_asm_
                "push %eax\n\r"  //寄存器要在前面加上%，多个命令时，命令以\n\r结尾，使得在将汇
//编代码插入目标文件时会换行
                "push %ebx\n\r"
                "push %ebx\n\r"
                "mov $0x10,%eax\n\r" //立即数前加$
                "mov $0x15,%ebx\n\r"
                "add %ebx,%eax\n\r"
        );
        asm(
                "mov %%eax,%0"
                        :"=r"((int)*q)
        );
        asm(
                "pop %ecx\n\r"
                "pop %ebx\n\r"
                "pop %eax\n\r"
        );
        cout <<*q;
}

 

扩展:

http://www.ibm.com/developerworks/cn/linux/sdk/assemble/inline/index.html

http://blog.csdn.net/hgd_dingjun/article/details/2809988

http://hi.baidu.com/pangbanme/blog/item/bace5b66fb83ae25ab184cad.html

http://blog.csdn.net/feixiaoxing/article/details/6755132