DIO
if (cmdk_debug & DIO) {
static int cmdk_debug = DIO;
static int que_debug = DENT|DERR|DIO;
static int flc_debug = DENT|DERR|DIO;
if ((Msr(fdc) & (DIO|RQM)) == RQM)
if ((Msr(fdc) & (DIO|RQM)) == RQM)
if ((tmp & (RQM|DIO|CB)) == (RQM|DIO|CB)) {
if ((tmp & (RQM|DIO|CB)) ==
(RQM|DIO|CB)) {
if ((Msr(fdc) & (DIO|RQM)) == RQM)