fdsts_rd
(i = fdsts_rd(fdc) & (NE7_DIO|NE7_RQM)) != (NE7_DIO|NE7_RQM) &&
(i = fdsts_rd(fdc) & (NE7_DIO|NE7_RQM)) != NE7_RQM &&
while ((i = fdsts_rd(fdc) & (NE7_DIO | NE7_RQM))