STAT_BSY
if (STATUS & STAT_BSY)
if (!(STATUS & STAT_BSY)) {
if (!(STATUS & STAT_BSY))
if (!(tmp & STAT_BSY)) {
if ((tmp = STATUS) & STAT_BSY)
if (!(tmp & STAT_BSY)) {
for (i = 10; i && (STATUS & (STAT_SEL | STAT_IO | STAT_BSY)) !=