Atari ST series - Page 264

Dgetdrv
Get Default Drive Number
Dgetdrv() Opcode = 25 ($19)
T his fu n ctio n allo w s y ou to fin d th e d riv e n u m b er o f th e c u rre n t d efa ult
d riv e.
C macro format
in t de fau lt;
d efau lt = D g e td r v ();
Machine language format
m o v e.w # $ 1 9 , - ( s p )
trap # 1
ad d q .l # 2 ,s p
Inputs
N o n e
Results
DO d efau lt w o rd T he d riv e n u m b er of th e cu rre n t de fau lt d riv e
(d rive A : = 0 , d riv e B: = 1, an d so on ).
See also
D s e td r v ()
256