atf_dec
atf_dec(atomic_dec_32, uint32_t, "0x%" PRIx32);
atf_dec(atomic_dec_uint, unsigned int, "0x%x");
atf_dec(atomic_dec_ulong, unsigned long, "0x%lx");
atf_dec(atomic_dec_ptr, void *, "%p");
atf_dec(atomic_dec_64, uint64_t, "0x%" PRIx64);