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#include <stdio.h>
int main() {
unsigned int CPUInfo0;
unsigned int CPUInfo1;
unsigned int CPUInfo2;
unsigned int CPUInfo3;
unsigned int InfoType;
#if defined(__i386__) && defined(__PIC__)
/* %ebx is PIC register in 32-bit, so mustn't clobber it. */
__asm__ __volatile__ (
"xchg %%ebx, %1\n"
"cpuid\n"
"xchg %%ebx, %1\n":
"=a" (CPUInfo0),
"=r" (CPUInfo1),
"=c" (CPUInfo2),
"=d" (CPUInfo3) :
"0" (InfoType), "2" (0)
);
#else
__asm__ __volatile__ (
"cpuid":
"=a" (CPUInfo0),
"=b" (CPUInfo1),
"=c" (CPUInfo2),
"=d" (CPUInfo3) :
"0" (InfoType), "2" (0)
);
#endif
return 0;
}
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