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chiptune: clear out next-play register when song done

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Vince Weaver 2018-03-11 00:36:23 -05:00
parent 75332654ac
commit 5dcf33ec03
3 changed files with 11 additions and 0 deletions
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chiptune_player/chiptune_empty.dsk
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chiptune_player/chiptune_player.dsk
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11
chiptune_player/interrupt_handler.s
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@ -346,6 +346,17 @@ quiet_exit:
sta DONE_PLAYING
jsr clear_ay_both
;=====================================
; clear register area
;=====================================
ldx #13 ; 2
lda #0 ; 2
mb_clear_reg:
sta REGISTER_DUMP,X ; clear register value ; 4
sta REGISTER_OLD,X ; clear old values ; 4
dex ; 2
bpl mb_clear_reg ; 2nt/3
exit_interrupt:
pla ; restore a ; 4