Atari ST series Technical Reference Manual page 224

Restore Default Keyboard Table
Bioskeys()
T h is f u n c t i o n r e p l a c e s t h e k e y b o a r d m a p p i n g ta b le y o u h a v e in s t a lle d u s ­
i n g t h e K e y t b l ( ) f u n c t i o n w i th t h e d e f a u l t s y s t e m k e y m a p s .
C macro format
B i o s k e y s ( )
Machine language format
m o v e . w # 2 4 , - ( s p )
tr a p # 1 4
a d d q .l # 2 , s p
Inputs
N o n e
Results
N o n e
See also
K e y t b l ( )
216
Bioskeys
Opcode = 24