Function cpuid

util/amdtool/cpu.c:29–45

int fd_msr;

uint32_t cpuid(uint32_t eax)
{
	uint32_t ret;

#if defined(__PIC__) || defined(__DARWIN__) && !defined(__LP64__)
	asm volatile (
		"push " BREG "\n\t"
		"cpuid\n\t"
		"pop " BREG "\n\t"
		: "=a" (ret) : "a" (eax) : "%ecx", "%edx"
	);
#else
	asm ("cpuid" : "=a" (ret) : "a" (eax) : "%ebx", "%ecx", "%edx");
#endif

	return ret;
}

static inline cpuid_result_t cpuid_ext(uint32_t eax, unsigned int ecx)
{