ID_AA64PFR0_AMU_SHIFT
#define ID_AA64PFR0_AMU_MASK (0xfULL << ID_AA64PFR0_AMU_SHIFT)
#define ID_AA64PFR0_AMU_NONE (0x0ULL << ID_AA64PFR0_AMU_SHIFT)
#define ID_AA64PFR0_AMU_IMPL (0x1ULL << ID_AA64PFR0_AMU_SHIFT)
#define ID_AA64PFR0_AMU_IMPL_V1P1 (0x2ULL << ID_AA64PFR0_AMU_SHIFT)