mirror of
https://github.com/irmen/prog8.git
synced 2024-09-07 03:54:27 +00:00
113 lines
4.3 KiB
Lua
113 lines
4.3 KiB
Lua
%import textio
|
|
%import cx16diskio
|
|
%import palette
|
|
%zeropage basicsafe
|
|
%zpreserved $22,$2d ; zsound lib uses this region
|
|
|
|
|
|
;; Proof Of Concept Zsound player using a binary blob version of zsound library by ZeroByte relocated to something usable here.
|
|
;; Can play ZSM (music) and ZCM (pcm samples).
|
|
|
|
; "issues":
|
|
; - prog8 (or rather, 64tass) cannot "link" other assembly object files so we have to incbin a binary blob.
|
|
; - zsound player ZP usage is only known after compilation of zsound lib. And then this has to be blocked off in the prog8 program.
|
|
; - zsound lib BSS section has to be expanded into real zeros as part of the included binary.
|
|
; - zsound binary starts with 2 byte prg header that shifts the jump table 2 bytes (not a big issue but a bit untidy)
|
|
; - prog8 always sticks main module at the beginning so can't create a container module to stick zsound in (if you want to load it at the beginning)
|
|
; - prog8 always has some bootstrap code after the basic launcher so we can only start loading stuff after that
|
|
; - prog8 main has to be set to a fixed address (in this case $0830) to which the special zsound binary has been compiled as well.
|
|
|
|
|
|
main $0830 {
|
|
|
|
zsound_lib:
|
|
; this has to be the first statement to make sure it loads at the specified module address $0830
|
|
%asmbinary "zsound_combo-0830.bin"
|
|
|
|
; note: jump table is offset by 2 from the load address (because of prg header)
|
|
romsub $0832 = zsm_init() clobbers(A)
|
|
romsub $0835 = zsm_play() clobbers(A, X, Y)
|
|
romsub $0838 = zsm_playIRQ() clobbers(A, X, Y)
|
|
romsub $083b = zsm_start(ubyte bank @A, uword song_address @XY) clobbers(A, X, Y) -> ubyte @Pc
|
|
romsub $083e = zsm_stop()
|
|
romsub $0841 = zsm_setspeed(uword hz @XY) clobbers(A, X, Y)
|
|
romsub $0844 = zsm_setloop(ubyte count @A)
|
|
romsub $0847 = zsm_forceloop(ubyte count @A)
|
|
romsub $084a = zsm_noloop()
|
|
romsub $084d = zsm_setcallback(uword address @XY)
|
|
romsub $0850 = zsm_clearcallback() clobbers(A)
|
|
romsub $0853 = zsm_get_music_speed() clobbers(A) -> uword @XY
|
|
romsub $0856 = pcm_init() clobbers(A)
|
|
romsub $0859 = pcm_trigger_digi(ubyte bank @A, uword song_address @XY)
|
|
romsub $085c = pcm_play() clobbers(A, X, Y)
|
|
romsub $085f = pcm_stop() clobbers(A)
|
|
romsub $0862 = pcm_set_volume(ubyte volume @A)
|
|
|
|
const ubyte song_bank = 1
|
|
const uword song_address = $a000
|
|
const ubyte digi_bank = 6
|
|
const uword digi_address = $a000
|
|
const ubyte zcm_DIGITAB_size = 8 ; header size
|
|
|
|
sub start() {
|
|
txt.print("zsound demo program (drive 8)!\n")
|
|
|
|
cbm.SETMSG(%10000000) ; enable kernal status messages for load
|
|
if not cx16diskio.load_raw("colony.zsm", song_bank, song_address) {
|
|
txt.print("?can't load\n")
|
|
return
|
|
}
|
|
if not cx16diskio.load_raw("terminator2.zcm", digi_bank, digi_address) {
|
|
txt.print("?can't load\n")
|
|
return
|
|
} else {
|
|
; initialize header pointer of the zcm to point to actual sample data
|
|
; this will be set correcly by zsound lib itself if left at zero
|
|
; poke(digi_address+2, digi_bank)
|
|
; pokew(digi_address, digi_address+zcm_DIGITAB_size)
|
|
}
|
|
cbm.SETMSG(0)
|
|
txt.nl()
|
|
cx16.rambank(song_bank)
|
|
|
|
play_music()
|
|
}
|
|
|
|
sub play_music() {
|
|
zsm_init()
|
|
pcm_init()
|
|
zsm_setcallback(&end_of_song_cb)
|
|
if zsm_start(song_bank, song_address)==0 {
|
|
txt.print("\nmusic speed: ")
|
|
txt.print_uw(zsm_get_music_speed())
|
|
txt.print(" hz\nplaying song! hit enter to also play a digi sample!\n")
|
|
|
|
repeat {
|
|
if cx16.joystick_get2(0)!=$ffff
|
|
pcm_trigger_digi(digi_bank, digi_address)
|
|
|
|
sys.waitvsync()
|
|
repeat 1400 {
|
|
; artificially delay calling the play routine so we can see its raster time
|
|
%asm {{
|
|
nop
|
|
}}
|
|
}
|
|
palette.set_color(0, $84c)
|
|
pcm_play()
|
|
palette.set_color(0, $f25)
|
|
zsm_play()
|
|
palette.set_color(0, $000)
|
|
}
|
|
zsm_stop()
|
|
pcm_stop()
|
|
} else {
|
|
txt.print("?song start error\n")
|
|
}
|
|
}
|
|
|
|
sub end_of_song_cb() {
|
|
txt.print("end of song!\n")
|
|
}
|
|
}
|