ID_AA64PFR0_SEL2_SHIFT
#define ID_AA64PFR0_SEL2_MASK (0xfULL << ID_AA64PFR0_SEL2_SHIFT)
#define ID_AA64PFR0_SEL2_NONE (0x0ULL << ID_AA64PFR0_SEL2_SHIFT)
#define ID_AA64PFR0_SEL2_IMPL (0x1ULL << ID_AA64PFR0_SEL2_SHIFT)