ID_AA64ISAR0_RDM_SHIFT
#define ID_AA64ISAR0_RDM_MASK (0xf << ID_AA64ISAR0_RDM_SHIFT)
#define ID_AA64ISAR0_RDM_NONE (0x0 << ID_AA64ISAR0_RDM_SHIFT)
#define ID_AA64ISAR0_RDM_IMPL (0x1 << ID_AA64ISAR0_RDM_SHIFT)