/* Determine if the standard CPU signature is "AuthenticAMD". */
BOOLEAN EFIAPI StandardSignatureIsAuthenticAMD(VOID)
/* Determine if the standard CPU signature is "AuthenticAMD". */
BOOLEAN EFIAPI StandardSignatureIsAuthenticAMD(VOID)
{
  UINT32  RegEbx;
  UINT32  RegEcx;
  UINT32  RegEdx;
  AsmCpuid (CPUID_SIGNATURE, NULL, &RegEbx, &RegEcx, &RegEdx);
  return (RegEbx == CPUID_SIGNATURE_AUTHENTIC_AMD_EBX &&
          RegEcx == CPUID_SIGNATURE_AUTHENTIC_AMD_ECX &&
          RegEdx == CPUID_SIGNATURE_AUTHENTIC_AMD_EDX);
}