dos33fsprogs/games/duke/duke_music.s

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2020-12-27 19:24:15 +00:00
setup_music:
;===================================
; Setup Mockingboard
;===================================
lda #0
sta DONE_PLAYING
sta LOOP
; detect mockingboard
jsr mockingboard_detect
bcc mockingboard_notfound
mockingboard_found:
; jsr mockingboard_patch ; patch to work in slots other than 4?
lda SOUND_STATUS
ora #SOUND_MOCKINGBOARD
sta SOUND_STATUS
;=======================
; Set up 50Hz interrupt
;========================
jsr mockingboard_init
jsr mockingboard_setup_interrupt
;============================
; Init the Mockingboard
;============================
jsr reset_ay_both
jsr clear_ay_both
;==================
; init song
;==================
jsr pt3_init_song
jmp done_setup_sound
mockingboard_notfound:
done_setup_sound:
rts
;==========================
; includes
;==========================
; pt3 player
.include "pt3_lib_core.s"
.include "pt3_lib_init.s"
.include "interrupt_handler.s"
.include "pt3_lib_mockingboard_detect.s"
.include "pt3_lib_mockingboard_setup.s"
PT3_LOC = bg_music
.align $100
bg_music:
.incbin "music/theme.pt3"