代码

#define S __builtin_scanf(
#define P __builtin_printf(
#define getint()__asm__(\
"       movl $48,%ebx\n"\
"       call getchar\n"\
"       xorl %ebx,%eax\n"\
"       movl %eax,%esi\n"\
"       call getchar\n"\
"       cmp %eax,%ebx\n"\
"       jg 1f\n"\
"0:     movl %esi,%ecx\n"\
"       sall $2,%esi\n"\
"       addl %ecx,%esi\n"\
"       addl %esi,%esi\n"\
"       xorl %ebx,%eax\n"\
"       addl %eax,%esi\n"\
"       call getchar\n"\
"       cmp %eax,%ebx\n"\
"       jbe 0b\n"\
"1:");
int a,b;
main(){
        getint()
        asm("movl %%esi,%0":"+r"(a));
//      __asm__("movl %esi,a");
        getint()
        asm("movl %%esi,%0":"+r"(b));
//      __asm__("movl %esi,b");
        P"%d",a+b);
}

评测结果