求二次根式(汇编浮点数指令fsqrt实现)

#include<iostream>#include<cmath>using namespace std;int main(){	double x = 2;	double r = 0;	float y=0;	int a = 0;	__asm{		fld x//传入的一定要是浮点数,否则结果错误.		fsqrt		fst r		fst y		mov a,eax	}	cout<< x << endl;	cout << r << endl;	cout << sqrtf(2) << endl;	cout << y << endl;	cout << a << endl;	return 0;}
21.414211.414211.414215505368