Atari ST series - Page 386

APPENDIX I
$94, $95, $99 Inquire Joystick Mode
T h is co m m a n d ca u se s th e IK BD to sen d a p ack et th at co n tain s in fo rm atio n
a b o u t th e cu rre n t jo ystick m o d e . If k ey co d e m o d e is b ein g u se d , it also
re tu rn s in fo rm a tio n ab o u t th e ve lo city c u rso r settin gs.
Packet returned
Byte
Number Description
1 $ F 6 (statu s p ack et h ea d e r)
2 T h e n u m b e r o f th e co rre s p o n d in g se t m o d e co m m an d
$ 1 4 = E v e n t rep o rtin g m o d e
$ 15 = In terro g atio n m od e
$ 19 = K e y co d e m o d e
3 - 8 F o r ev e n t re p ortin g a n d in terrog atio n m o d es th ese a re p ad
b y tes (all Os). F o r k ey co d e m o d e , th ey are:
3 R X : T h e len gth of tim e un til th e h orizo ntal v elo city brea k p oin t
is re ac h ed , a n d th e ke y rep e ats b eco m e fa ster (in ten th s o f a
se co n d ).
4 R Y : T h e len g th of tim e un til th e v ertical ve lo city b re ak p oin t is
re ac h e d , a n d th e k ey re p e ats b ec om e fa ster (in ten th s o f a
se co n d ).
5 T X : T h e le n g th of tim e b etw e en h o riz on ta l ke y re p e ats b efore
th e h o rizo n tal b re ak p o in t is re a ch e d (in ten th s o f a se c o n d ).
6 T Y : T h e len g th o f tim e b etw e en vertica l k ey rep ea ts be fore th e
v ertical b re ak p o in t is re ac h e d (in ten th s o f a se co n d ).
7 V X : T h e le n g th o f tim e b etw e en h oriz on ta l ke y re p ea ts after th e
h o riz on tal b rea k p o in t is re a ch ed (in te n th s o f a se co n d ).
8 V X: T h e le n gth o f tim e b etw e en v ertical k ey re p ea ts afte r th e
h o riz on tal b reak p oin t is re a ch e d (in te n th s o f a s eco n d ).
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