C++ 嵌入汇编 获取CPU信息

#include "windows.h" #include "iostream"#include "string"using namespace std;//用来存储信息DWORD deax;DWORD debx;DWORD decx;DWORD dedx;void ExeCPUID(DWORD veax)//初始化CPU{__asm{   mov eax,veax    cpuid    mov deax,eax    mov debx,ebx    mov decx,ecx    mov dedx,edx}}long GetCPUFreq()//获取CPU频率,单位: MHZ{int start1,start2;_asm rdtsc   _asm mov start1,eax   Sleep(50);_asm rdtsc   _asm mov start2,eax   return (start2-start1)/50000;}string GetManID()//获取制造商信息{char ID[25];//存储制造商信息memset(ID,0,sizeof(ID));//先清空数组 IDExeCPUID(0);//初始化memcpy(ID+0,&debx,4);//制造商信息前四个字符复制到数组memcpy(ID+4,&dedx,4);//中间四个memcpy(ID+8,&decx,4);//最后四个//如果返回 char * ,会出现乱码;故返回 string 值return string(ID);}string GetCPUType(){const DWORD id = 0x80000002; //从0x80000002开始,到0x80000004结束char CPUType[49];//用来存储CPU型号信息memset(CPUType,0,sizeof(CPUType));//初始化数组for(DWORD t = 0 ; t < 3 ; t++ ){   ExeCPUID(id+t);   //每次循环结束,保存信息到数组   memcpy(CPUType+16*t+ 0,&deax,4);   memcpy(CPUType+16*t+ 4,&debx,4);   memcpy(CPUType+16*t+ 8,&decx,4);   memcpy(CPUType+16*t+12,&dedx,4);}return string(CPUType);}void main() { cout<<"本机CPU信息如下:"<<endl;cout<<"CPU 主 频: "<<GetCPUFreq()<<" MHZ"<<endl;cout<<"CPU 制造商: "<<GetManID()<<endl;cout<<"CPU 型 号: "<<GetCPUType()<<endl;cin.get();}