xdef Start, Stop, End xdef wait Start: move.l #-1, $140C ; Clobber status move.l #1, $1404 ; Set length move.l #X, $1408 ; Set buffer address move.l #0, $1400; ; READ wait: move.l $140C, d0 cmp.l #-1, d0 ; Test if status has changed to ready beq wait ; Repeat testing until status changes Stop: nop nop nop X: ds.b 100 End: end