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作者: twd2 日期: 2013 年 09 月 03 日被围观 119 次发表评论 (2) 查看评论

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#include<iostream>
using namespace std;
int sum()
{
    __asm(
    "movl $1,%ebx\n"
    "movl $0,%ecx\n"
    //"xor %ecx,%ecx \n"
    "startfor: \n"
    "cmp $100,%ebx\n"
    "jg endfor \n"
    "movl %ebx,%eax\n"
    "mul %eax\n"
    "addl %eax,%ecx\n"
    "incl %ebx\n"
    "jmp startfor\n"
    "endfor: \n"
    "movl $0,%edx\n"
    //"xor %edx,%edx \n"
    "movl %ecx,%eax\n"
    );
}
int main()
{
    cout<<sum()<<endl;
}