BSR_ATN_BIT
if (bus_status.value & BSR_ATN_BIT)
if ((bsr & BSR_ATN_BIT) && !(bsr & (BSR_NDAC_BIT | BSR_NRFD_BIT))) {
if ((bsr_bits & BSR_ATN_BIT) == 0)
if ((bsr_bits & BSR_ATN_BIT) == 0)
if ((bsr_bits & BSR_ATN_BIT) == 0)
if (bsr_bits & BSR_ATN_BIT)