1
0
mirror of https://github.com/cc65/cc65.git synced 2024-12-27 00:29:31 +00:00
cc65/libsrc/pet/kbhit.s

23 lines
347 B
ArmAsm
Raw Normal View History

;
; Ullrich von Bassewitz, 26.11.1998
;
; unsigned char kbhit (void);
;
.export _kbhit
.include "pet.inc"
.proc _kbhit
ldx #0 ; High byte of return is always zero
lda KEY_COUNT ; Get number of characters
beq L9
lda #1
L9: rts
.endproc