;
; Ullrich von Bassewitz, 06.08.1998
; unsigned char kbhit (void);
.export _kbhit
.import keyidx: zp
.proc _kbhit
ldx #0 ; High byte of return is always zero
lda keyidx ; Get number of characters
beq L9
lda #1
L9: rts
.endproc