Atari ST series Technical Reference Manual page 241

Execute Supervisor Mode Function
Supexec()
R u n s a s u b r o u t i n e in t h e 6 8 0 0 0 p r o c e s s o r 's s u p e r v i s o r m o d e .
C macro format
l o n g s u b ;
S u p e x e c ( s u b ) ;
Machine language format
m o v e .l s u b , - (s p )
m o v e , w # 3 8 , - (s p )
t r a p # 1 4
a d d q .l # 6 , s p
Inputs
s u b l o n g
Results
N o n e
See also
Supexec
T h e a d d r e s s o f t h e s u b r o u t i n e to r u n in
s u p e r v i s o r m o d e .
Opcode = 38
233