DSXXXX_HOURS
if ((bcd[DSXXXX_HOURS] & DSXXXX_HOURS_12HRS_MODE) != 0) {
dt->dt_hour = bcdtobin(bcd[DSXXXX_HOURS] &
if (bcd[DSXXXX_HOURS] & DSXXXX_HOURS_12HRS_PM)
dt->dt_hour = bcdtobin(bcd[DSXXXX_HOURS] &
bcd[DSXXXX_HOURS] = bintobcd(dt->dt_hour); /* DSXXXX_HOURS_12HRS_MODE=0 */