Handbook
Glossary
read-port1 ( cpu -- byte )
Vocabulary
roms
.
space-invaders
Inputs
cpu
an
object
Outputs
byte
an
object
Definition
USING:
accessors
kernel
math
;
IN:
roms.space-invaders
:
read-port1
( cpu -- byte )
[
dup
254
bitand
]
change-port1
drop
;