//------CPUID Instruction Demo Program------
#include < conio.h >
#include < iostream.h >
#include <string>
#pragma hdrstop
int main(int argc, char **argv)
{
char OEMString[13];
int iEAXValue,iEBXValue,iECXValue,iEDXValue;
_asm
{
mov eax,0
cpuid
mov DWORD PTR OEMString,ebx
mov DWORD PTR OEMString+4,edx
mov DWORD PTR OEMString+8,ecx
mov BYTE PTR OEMString+12,0
}
cout<< "This CPU's OEM String is : "<<OEMString<<endl;
_asm
{
mov eax,1
cpuid
mov iEAXValue,eax
mov iEBXValue,ebx
mov iECXValue,ecx
mov iEDXValue,edx
}
if(iEDXValue&0x800000)
cout<<"This is MMX CPU"<<endl;
else
cout<<"None MMX Support."<<endl;
int iCPUFamily=(0xf00 & iEAXValue)>>8;
cout<<"CPU Family is : "<<iCPUFamily<<endl;
_asm
{
mov eax,2
CPUID
}
char szCPUID[129]={NULL};
char szTmp[33]={NULL};
unsigned long s1 = 0,s2=0;
_asm
{
mov eax,01h
xor edx,edx
cpuid
mov s1,edx
mov s2,eax
}
sprintf(szTmp, "%08X%08X", s1, s2);
strcpy(szCPUID, szTmp);
_asm
{
mov eax,03h
xor ecx,ecx
xor edx,edx
cpuid
mov s1,edx
mov s2,ecx
}
sprintf(szTmp, "%08X%08X", s1, s2);
strcat(szCPUID, szTmp);
cout<<"This CPU's ID is : "<<szCPUID<<endl;
system("PAUSE");
return 0;
}