嵌入汇编

[consuvi]

CString C3Des::GetCPUID()
{
CString strCpuID = "";
unsigned long s1,s2;
unsigned char vendor_id[]="------------";
char sel;
sel='1';
CString VernderID;
CString CPUID1,CPUID2;
switch(sel)
{
case '1':
__asm{
xor eax,eax //eax=0:取Vendor信息
cpuid //取cpu id指令，可在Ring3级使用
mov dword ptr vendor_id,ebx
mov dword ptr vendor_id[+4],edx
mov dword ptr vendor_id[+8],ecx
}
VernderID.Format("%s-",vendor_id);
__asm{
mov eax,01h //eax=1:取CPU序列号
xor edx,edx
cpuid
mov s1,edx
mov s2,eax
}
CPUID1.Format("%08X%08X",s1,s2);
__asm{
mov eax,03h
xor ecx,ecx
xor edx,edx
cpuid
mov s1,edx
mov s2,ecx
}
CPUID2.Format("%08X%08X",s1,s2);
break;
case '2':
{
__asm{
mov ecx,119h
rdmsr
or eax,00200000h
wrmsr
}
}
break;
}
strCpuID = CPUID1+CPUID2;
return strCpuID;
}