dos33fsprogs/duke/wait_a_bit.s
2020-12-13 19:49:00 -05:00

28 lines
305 B
ArmAsm

;====================================
; wait for keypress or a few seconds
;====================================
wait_a_bit:
bit KEYRESET
tax
keyloop:
lda #200 ; delay a bit
jsr WAIT
lda KEYPRESS
bmi done_keyloop
; bmi keypress_exit
dex
bne keyloop
done_keyloop:
bit KEYRESET
rts