dos33fsprogs/still_alive/sa_ed.s

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; Electric Duet Code Path
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still_alive_ed:
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; init variables
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lda #0
sta FRAME_COUNT
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;==============================
; Setup lyrics
;==============================
; DANGER! 1 in 256 chance of missing a roll-over
; ED offsets are one after the MB offsets
inc LYRICSL
; lda #<(lyrics_ed)
; sta LYRICSL
; lda #>(lyrics_ed)
; sta LYRICSH
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;==================
; load song
;==================
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lda #<music_address
sta MADDRL
lda #>music_address
sta MADDRH
jsr play_ed
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;==================
; loop forever
;==================
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rts