mirror of
https://github.com/cc65/cc65.git
synced 2024-12-26 08:32:00 +00:00
24 lines
314 B
ArmAsm
24 lines
314 B
ArmAsm
;
|
|
; Christian Groessler, 19-Feb-2000
|
|
;
|
|
; unsigned char kbhit (void);
|
|
;
|
|
|
|
.export _kbhit
|
|
.import return1
|
|
|
|
.include "atari.inc"
|
|
|
|
.proc _kbhit
|
|
|
|
ldx CH ; last pressed key
|
|
inx ; 255 means "no key"
|
|
bne L1
|
|
txa ; X = A = 0
|
|
rts
|
|
L1: jmp return1
|
|
|
|
.endproc
|
|
|
|
|