代码

unsigned int plus(register unsigned int a,register unsigned int b)
{
    unsigned int qwq;
    __asm__ __volatile__(
        "movl    %1, %0;"
        "addl    %2, %0;"
        : "=r"(qwq)
        : "r"(a), "r"(b)
        :
    );
    return qwq;
}

评测结果