Memory Read - Atari ST series Technical Reference Manual

The Intelligent Keyboard Controller
T h is c o m m a n d a l l o w s y o u t o r e a d t h e 6 3 0 1 p r o c e s s o r R O M o r R A M , s ix
b y t e s a t a ti m e .
Input parameters
Byte
Number Description
1 H i g h b y t e o f a d d r e s s in c o n t r o l l e r m e m o r y to r e a d
2 L o w b y t e o f a d d r e s s in c o n t r o l l e r m e m o r y to r e a d
Packet returned
Byte
Number Description
1 $ F 6 ( s t a t u s p a c k e t h e a d e r )
2 $ 2 0 T h e n u m b e r o f t h e c o r r e s p o n d i n g s e t c o m m a n d
3 - 8 S ix b y t e s o f 6 3 0 1 m e m o r y , s t a r t i n g a t th e a d d r e s s s p e c if ie d in
t h e c o m m a n d

$21 Memory Read

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