;
; 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