ref: 0cce53bea3e8b1da4e59ebba198cc95b98d77698
parent: ef93cdf3133f8773cc2b0064489f4f1f390cb3e1
parent: b7c788c6541307536b579ad308a45908afefed72
author: Bryan Bishop <kanzure@gmail.com>
date: Fri Nov 2 20:59:08 EDT 2012
Merge pull request #41 from yenatch/master bank 3a and /music
--- a/constants.asm
+++ b/constants.asm
@@ -9,6 +9,10 @@
db \1 << 4 + \2
ENDM
+bigdw: MACRO
+ dw ((\1)/$100) + (((\1)&$ff)*$100)
+ ENDM
+
callab: MACRO
ld hl, \1
ld a, BANK(\1)
@@ -3115,3 +3119,230 @@
MUSIC_SUICUNE_BATTLE EQU 100
MUSIC_BATTLE_TOWER_LOBBY EQU 101
MUSIC_MOBILE_CENTER EQU 102
+
+; sound
+_4CH1 EQU $c0
+_3CH1 EQU $80
+_2CH1 EQU $40
+_1CH1 EQU $00
+_3CH2 EQU $81
+_2CH2 EQU $41
+_1CH2 EQU $01
+_2CH3 EQU $42
+_1CH3 EQU $02
+_1CH4 EQU $03
+
+_4CH5 EQU $c4
+_3CH5 EQU $84
+_2CH5 EQU $44
+_1CH5 EQU $04
+_3CH6 EQU $85
+_2CH6 EQU $45
+_1CH6 EQU $05
+_2CH7 EQU $46
+_1CH7 EQU $06
+_1CH8 EQU $07
+
+_CH2 EQU $01
+_CH3 EQU $02
+_CH4 EQU $03
+_CH5 EQU $04
+_CH6 EQU $05
+_CH7 EQU $06
+_CH8 EQU $07
+
+note: MACRO
+ db \1
+ ENDM
+; eventually replace with this:
+; note: MACRO
+ ; db NOTE_\1 + NOTE_\2
+ ; ENDM
+
+NOTE_RST EQU $00
+NOTE_C EQU $10
+NOTE_C# EQU $20
+NOTE_D EQU $30
+NOTE_D# EQU $40
+NOTE_E EQU $50
+NOTE_F EQU $60
+NOTE_F# EQU $70
+NOTE_G EQU $80
+NOTE_G# EQU $90
+NOTE_A EQU $a0
+NOTE_A# EQU $b0
+NOTE_B EQU $c0
+
+; 16ths
+NOTE_1 EQU $00
+NOTE_2 EQU $01
+NOTE_3 EQU $02
+NOTE_4 EQU $03
+NOTE_5 EQU $04
+NOTE_6 EQU $05
+NOTE_7 EQU $06
+NOTE_8 EQU $07
+NOTE_9 EQU $08
+NOTE_10 EQU $09
+NOTE_11 EQU $0a
+NOTE_12 EQU $0b
+NOTE_13 EQU $0c
+NOTE_14 EQU $0d
+NOTE_15 EQU $0e
+NOTE_16 EQU $0f
+
+octave: MACRO
+; $d0-$d7
+ db $d8 - \1
+ ENDM
+notetype: MACRO
+ db $d8
+ db \1
+ ENDM
+forceoctave: MACRO
+ db $d9
+ db \1
+ ENDM
+tempo: MACRO
+ db $da
+ bigdw \1
+ ENDM
+dutycycle: MACRO
+ db $db
+ db \1
+ ENDM
+intensity: MACRO
+ db $dc
+ db \1
+ ENDM
+soundinput: MACRO
+ db $dd
+ db \1
+ ENDM
+unknownmusic0xde: MACRO
+ db $de
+ db \1
+ ENDM
+unknownmusic0xdf: MACRO
+ db $df
+ ENDM
+unknownmusic0xe0: MACRO
+ db $e0
+ db \1
+ db \2
+ db \3
+ ENDM
+vibrato: MACRO
+ db $e1
+ db \1
+ db \2
+ ENDM
+unknownmusic0xe2: MACRO
+ db $e2
+ db \1
+ ENDM
+togglenoise: MACRO
+ db $e3
+ ENDM
+panning: MACRO
+ db $e4
+ db \1
+ ENDM
+volume: MACRO
+ db $e5
+ db \1
+ ENDM
+tone: MACRO
+ db $e6
+ bigdw \1
+ ENDM
+unknownmusic0xe7: MACRO
+ db $e7
+ db \1
+ ENDM
+unknownmusic0xe8: MACRO
+ db $e8
+ db \1
+ ENDM
+globaltempo : MACRO
+ db $e9
+ bigdw \1
+ ENDM
+restartchannel: MACRO
+ db $ea
+ bigdw \1
+ ENDM
+newsong: MACRO
+ db $eb
+ dw \1
+ ENDM
+sfxpriorityon: MACRO
+ db $ec
+ ENDM
+sfxpriorityoff: MACRO
+ db $ed
+ ENDM
+unknownmusic0xee: MACRO
+ db $ee
+ dw \1
+ ENDM
+stereopanning: MACRO
+ db $ef
+ db \1
+ ENDM
+sfxtogglenoise: MACRO
+ db $f0
+ db \1
+ ENDM
+music0xf1: MACRO
+ db $f1
+ ENDM
+music0xf2: MACRO
+ db $f2
+ ENDM
+music0xf3: MACRO
+ db $f3
+ ENDM
+music0xf4: MACRO
+ db $f4
+ ENDM
+music0xf5: MACRO
+ db $f5
+ ENDM
+music0xf6: MACRO
+ db $f6
+ ENDM
+music0xf7: MACRO
+ db $f7
+ ENDM
+music0xf8: MACRO
+ db $f8
+ ENDM
+unknownmusic0xf9: MACRO
+ db $f9
+ ENDM
+setcondition: MACRO
+ db $fa
+ db \1
+ ENDM
+jumpif: MACRO
+ db $fb
+ db \1
+ dw \2
+ ENDM
+jumpchannel: MACRO
+ db $fc
+ dw \1
+ ENDM
+loopchannel: MACRO
+ db $fd
+ db \1
+ dw \2
+ ENDM
+callchannel: MACRO
+ db $fe
+ dw \1
+ ENDM
+endchannel: MACRO
+ db $ff
+ ENDM
\ No newline at end of file
--- a/main.asm
+++ b/main.asm
@@ -1287,8 +1287,8 @@
INCBIN "baserom.gbc",$392d,$3b86 - $392d
-LoadMusicHeader: ; 3b86
-; store music header in ram
+LoadMusicByte: ; 3b86
+; load music data into CurMusicByte
; input:
; a: bank
; de: address
@@ -1295,7 +1295,7 @@
ld [$ff00+$9d], a
ld [$2000], a ; bankswitch
ld a, [de]
- ld [MusicHeaderBuffer], a
+ ld [CurMusicByte], a
ld a, $3a ; manual bank restore
ld [$ff00+$9d], a
ld [$2000], a ; bankswitch
@@ -1335,15 +1335,18 @@
INCBIN "baserom.gbc",$3bbc,$3c23 - $3bbc
StartSFX: ; 3c23
-; not sure why this was written differently from StartMusic
+; sfx id order is by priority (highest to lowest)
+; to disable this, remove the check!
; input: de = sfx id
push hl
push de
push bc
push af
- call CheckSFX ; is something already playing?
+ ; is something already playing?
+ call CheckSFX
jr nc, .asm_3c32
- ld a, [CurSFX] ; i guess sfx order is by priority
+ ; only play sfx if it has priority
+ ld a, [CurSFX]
cp e
jr c, .quit
.asm_3c32
@@ -74343,7 +74346,7 @@
SoundRestart: ; e8000
; restart sound operation
-; clear all relevant registers
+; clear all relevant hardware registers & wram
push hl
push de
push bc
@@ -74359,7 +74362,7 @@
ld hl, $ff10 ; sound channel registers
ld e, $04 ; number of channels
.clearsound
-; sound channel 1 2 3 4
+; sound channel 1 2 3 4
xor a
ld [hli], a ; $ff10, $ff15, $ff1a, $ff1f ; sweep = 0
@@ -74373,8 +74376,8 @@
dec e
jr nz, .clearsound
- ld hl, $c101 ; start of channel data
- ld de, $01bf ; length ($ * 8 channels)
+ ld hl, Channel1 ; start of channel data
+ ld de, $01bf ; length of area to clear (entire sound wram area)
.clearchannels ; clear $c101-$c2bf
xor a
ld [hli], a
@@ -74392,45 +74395,2251 @@
ret
; e803d
-INCBIN "baserom.gbc",$e803d,$e8051 - $e803d
+MusicFadeRestart: ; e803d
+; restart but keep the music id to fade in to
+ ld a, [MusicFadeIDHi]
+ push af
+ ld a, [MusicFadeIDLo]
+ push af
+ call SoundRestart
+ pop af
+ ld [MusicFadeIDLo], a
+ pop af
+ ld [MusicFadeIDHi], a
+ ret
+; e8051
MusicOn: ; e8051
ld a, $01
- ld [$c100], a
+ ld [MusicPlaying], a
ret
; e8057
MusicOff: ; e8057
xor a
- ld [$c100], a
+ ld [MusicPlaying], a
ret
; e805c
-INCBIN "baserom.gbc",$e805c,$e8b11 - $e805c
+UpdateSound: ; e805c
+; called once per frame
+ ; no use updating audio if it's not playing
+ ld a, [MusicPlaying]
+ and a
+ ret z
+ ; start at ch1
+ xor a
+ ld [CurChannel], a ; just
+ ld [SoundOutput], a ; off
+ ld bc, Channel1
+.loop
+ ; is the channel active?
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 0, [hl]
+ jp z, .nextchannel
+ ; check time left in the current note
+ ld hl, Channel1NoteDuration - Channel1
+ add hl, bc
+ ld a, [hl]
+ cp a, $02 ; 1 or 0?
+ jr c, .noteover
+ dec [hl]
+ jr .asm_e8093
+.noteover
+ ; reset vibrato delay
+ ld hl, Channel1VibratoDelay - Channel1
+ add hl, bc
+ ld a, [hl]
+ ld hl, Channel1VibratoDelayCount - Channel1
+ add hl, bc
+ ld [hl], a
+ ; turn vibrato off for now
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ res 1, [hl]
+ ; get next note
+ call ParseMusic
+.asm_e8093
+ ;
+ call Functione84f9
+ ; duty cycle
+ ld hl, Channel1DutyCycle - Channel1
+ add hl, bc
+ ld a, [hli]
+ ld [$c292], a
+ ; intensity
+ ld a, [hli]
+ ld [$c293], a
+ ; frequency
+ ld a, [hli]
+ ld [$c294], a
+ ld a, [hl]
+ ld [$c295], a
+ ;
+ call Functione8466 ; handle vibrato and other things
+ call HandleNoise
+ ; turn off music when playing sfx?
+ ld a, [SFXPriority]
+ and a
+ jr z, .next
+ ; are we in a sfx channel right now?
+ ld a, [CurChannel]
+ cp a, $04
+ jr nc, .next
+ ; are any sfx channels active?
+ ; if so, mute
+ ld hl, $c1cc ; Channel5Flags
+ bit 0, [hl]
+ jr nz, .restnote
+ ld hl, $c1fe ; Channel6Flags
+ bit 0, [hl]
+ jr nz, .restnote
+ ld hl, $c230 ; Channel7Flags
+ bit 0, [hl]
+ jr nz, .restnote
+ ld hl, $c262 ; Channel8Flags
+ bit 0, [hl]
+ jr z, .next
+.restnote
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 5, [hl] ; Rest
+.next
+ ; are we in a sfx channel right now?
+ ld a, [CurChannel]
+ cp a, $04 ; sfx
+ jr nc, .asm_e80ee
+ ld hl, $00cb
+ add hl, bc
+ bit 0, [hl]
+ jr nz, .asm_e80fc
+.asm_e80ee
+ call UpdateChannels
+ ld hl, Channel1Tracks - Channel1
+ add hl, bc
+ ld a, [SoundOutput]
+ or [hl]
+ ld [SoundOutput], a
+.asm_e80fc
+ ; clear note flags
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ xor a
+ ld [hl], a
+.nextchannel
+ ; next channel
+ ld hl, Channel2 - Channel1
+ add hl, bc
+ ld c, l
+ ld b, h
+ ld a, [CurChannel]
+ inc a
+ ld [CurChannel], a
+ cp a, $08 ; are we done?
+ jp nz, .loop ; do it all again
+ ; writing to hardware registers?
+ call Functione8307
+ ; fade music in/out
+ call FadeMusic
+ ; write volume to hardware register
+ ld a, [Volume]
+ ld [$ff00+$24], a
+ ; write SO on/off to hardware register
+ ld a, [SoundOutput]
+ ld [$ff00+$25], a
+ ret
+; e8125
+UpdateChannels: ; e8125
+ ld hl, .ChannelFnPtrs
+ ld a, [CurChannel]
+ and a, $07
+ add a
+ ld e, a
+ ld d, $00
+ add hl, de
+ ld a, [hli]
+ ld h, [hl]
+ ld l, a
+ jp [hl]
+
+.ChannelFnPtrs
+ dw .Channel1
+ dw .Channel2
+ dw .Channel3
+ dw .Channel4
+; sfx ch ptrs are identical to music chs
+; ..except 5
+ dw .Channel5
+ dw .Channel6
+ dw .Channel7
+ dw .Channel8
+
+.Channel1
+ ld a, [$c2a6]
+ bit 7, a
+ ret nz
+.Channel5
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ bit 3, [hl]
+ jr z, .asm_e8159
+ ;
+ ld a, [SoundInput]
+ ld [$ff00+$10], a
+.asm_e8159
+ bit 5, [hl] ; rest
+ jr nz, .ch1rest
+ bit 4, [hl]
+ jr nz, .asm_e81a2
+ bit 1, [hl]
+ jr nz, .asm_e816b
+ bit 6, [hl]
+ jr nz, .asm_e8184
+ jr .asm_e8175
+.asm_e816b
+ ld a, [$c294]
+ ld [$ff00+$13], a
+ ld a, [$c295]
+ ld [$ff00+$14], a
+.asm_e8175
+ bit 0, [hl]
+ ret z
+ ld a, [$c292]
+ ld d, a
+ ld a, [$ff00+$11]
+ and a, $3f ; sound length
+ or d
+ ld [$ff00+$11], a
+ ret
+.asm_e8184
+ ld a, [$c292]
+ ld d, a
+ ld a, [$ff00+$11]
+ and a, $3f ; sound length
+ or d
+ ld [$ff00+$11], a
+ ld a, [$c294]
+ ld [$ff00+$13], a
+ ret
+.ch1rest
+ ld a, [$ff00+$26]
+ and a, %10001110 ; ch1 off
+ ld [$ff00+$26], a
+ ld hl, $ff10
+ call ClearChannel
+ ret
+.asm_e81a2
+ ld hl, $c292
+ ld a, $3f ; sound length
+ or [hl]
+ ld [$ff00+$11], a
+ ld a, [$c293]
+ ld [$ff00+$12], a
+ ld a, [$c294]
+ ld [$ff00+$13], a
+ ld a, [$c295]
+ or a, $80
+ ld [$ff00+$14], a
+ ret
+
+.Channel2
+.Channel6
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ bit 5, [hl] ; rest
+ jr nz, .ch2rest
+ bit 4, [hl]
+ jr nz, .asm_e8204
+ bit 6, [hl]
+ jr nz, .asm_e81e6
+ bit 0, [hl]
+ ret z
+ ld a, [$c292]
+ ld d, a
+ ld a, [$ff00+$16]
+ and a, $3f ; sound length
+ or d
+ ld [$ff00+$16], a
+ ret
+.asm_e81db ; unused
+ ld a, [$c294]
+ ld [$ff00+$18], a
+ ld a, [$c295]
+ ld [$ff00+$19], a
+ ret
+.asm_e81e6
+ ld a, [$c292]
+ ld d, a
+ ld a, [$ff00+$16]
+ and a, $3f ; sound length
+ or d
+ ld [$ff00+$16], a
+ ld a, [$c294]
+ ld [$ff00+$18], a
+ ret
+.ch2rest
+ ld a, [$ff00+$26]
+ and a, %10001101 ; ch2 off
+ ld [$ff00+$26], a
+ ld hl, $ff15
+ call ClearChannel
+ ret
+.asm_e8204
+ ld hl, $c292
+ ld a, $3f ; sound length
+ or [hl]
+ ld [$ff00+$16], a
+ ld a, [$c293]
+ ld [$ff00+$17], a
+ ld a, [$c294]
+ ld [$ff00+$18], a
+ ld a, [$c295]
+ or a, $80 ; initial (restart)
+ ld [$ff00+$19], a
+ ret
+
+.Channel3
+.Channel7
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ bit 5, [hl] ; rest
+ jr nz, .ch3rest
+ bit 4, [hl]
+ jr nz, .asm_e824d
+ bit 6, [hl]
+ jr nz, .asm_e823a
+ ret
+.asm_e822f ; unused
+ ld a, [$c294]
+ ld [$ff00+$1d], a
+ ld a, [$c295]
+ ld [$ff00+$1e], a
+ ret
+.asm_e823a
+ ld a, [$c294]
+ ld [$ff00+$1d], a
+ ret
+.ch3rest
+ ld a, [$ff00+$26]
+ and a, %10001011 ; ch3 off
+ ld [$ff00+$26], a
+ ld hl, $ff1a
+ call ClearChannel
+ ret
+.asm_e824d
+ ld a, $3f
+ ld [$ff00+$1b], a
+ xor a
+ ld [$ff00+$1a], a
+ call .asm_e8268
+ ld a, $80
+ ld [$ff00+$1a], a
+ ld a, [$c294]
+ ld [$ff00+$1d], a
+ ld a, [$c295]
+ or a, $80
+ ld [$ff00+$1e], a
+ ret
+.asm_e8268
+ push hl
+ ld a, [$c293]
+ and a, $0f ; only 0-9 are valid
+ ld l, a
+ ld h, $00
+ ; hl << 4
+ ; each wavepattern is $0f bytes long
+ ; so seeking is done in $10s
+ add hl, hl
+ add hl, hl
+ add hl, hl
+ add hl, hl
+ ld de, WaveSamples
+ add hl, de
+ ; load wavepattern into $ff30-$ff3f
+ ld a, [hli]
+ ld [$ff00+$30], a
+ ld a, [hli]
+ ld [$ff00+$31], a
+ ld a, [hli]
+ ld [$ff00+$32], a
+ ld a, [hli]
+ ld [$ff00+$33], a
+ ld a, [hli]
+ ld [$ff00+$34], a
+ ld a, [hli]
+ ld [$ff00+$35], a
+ ld a, [hli]
+ ld [$ff00+$36], a
+ ld a, [hli]
+ ld [$ff00+$37], a
+ ld a, [hli]
+ ld [$ff00+$38], a
+ ld a, [hli]
+ ld [$ff00+$39], a
+ ld a, [hli]
+ ld [$ff00+$3a], a
+ ld a, [hli]
+ ld [$ff00+$3b], a
+ ld a, [hli]
+ ld [$ff00+$3c], a
+ ld a, [hli]
+ ld [$ff00+$3d], a
+ ld a, [hli]
+ ld [$ff00+$3e], a
+ ld a, [hli]
+ ld [$ff00+$3f], a
+ pop hl
+ ld a, [$c293]
+ and a, $f0
+ sla a
+ ld [$ff00+$1c], a
+ ret
+
+.Channel4
+.Channel8
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ bit 5, [hl] ; rest
+ jr nz, .ch4rest
+ bit 4, [hl]
+ jr nz, .asm_e82d4
+ ret
+.asm_e82c1 ; unused
+ ld a, [$c294]
+ ld [$ff00+$22], a
+ ret
+.ch4rest
+ ld a, [$ff00+$26]
+ and a, %10000111 ; ch4 off
+ ld [$ff00+$26], a
+ ld hl, $ff1f
+ call ClearChannel
+ ret
+.asm_e82d4
+ ld a, $3f ; sound length
+ ld [$ff00+$20], a
+ ld a, [$c293]
+ ld [$ff00+$21], a
+ ld a, [$c294]
+ ld [$ff00+$22], a
+ ld a, $80
+ ld [$ff00+$23], a
+ ret
+; e82e7
+
+_CheckSFX: ; e82e7
+; return carry if any sfx channels are active
+ ld hl, $c1cc ; Channel5Flags
+ bit 0, [hl]
+ jr nz, .sfxon
+ ld hl, $c1fe ; Channel6Flags
+ bit 0, [hl]
+ jr nz, .sfxon
+ ld hl, $c230 ; Channel7Flags
+ bit 0, [hl]
+ jr nz, .sfxon
+ ld hl, $c262 ; Channel8Flags
+ bit 0, [hl]
+ jr nz, .sfxon
+ and a
+ ret
+.sfxon
+ scf
+ ret
+; e8307
+
+Functione8307: ; e8307
+; what is $c2a6?
+ ld a, [$c2a6]
+ bit 7, a
+ ret z
+ and a, $7f
+ ld d, a
+ call _CheckSFX
+ jr c, .asm_e8335
+ and a
+ jr z, .asm_e8323
+ cp a, $10
+ jr z, .asm_e831e
+ jr .asm_e8335
+.asm_e831e
+ ld hl, Tablee8354
+ jr .updatehw
+.asm_e8323
+ ld hl, Tablee8350
+.updatehw
+ xor a
+ ld [$ff00+$10], a ; sweep off
+ ld a, [hli]
+ ld [$ff00+$11], a ; sound length / duty cycle
+ ld a, [hli]
+ ld [$ff00+$12], a ; ch1 volume envelope
+ ld a, [hli]
+ ld [$ff00+$13], a ; ch1 frequency lo
+ ld a, [hli]
+ ld [$ff00+$14], a ; ch1 frequency hi
+.asm_e8335
+ ld a, d
+ inc a
+ cp a, $1e
+ jr c, .asm_e833c
+ xor a
+.asm_e833c
+ or a, $80
+ ld [$c2a6], a
+ ; is hw ch1 on?
+ ld a, [SoundOutput]
+ and a, $11
+ ret nz
+ ; if not, turn it on
+ ld a, [SoundOutput]
+ or a, $11
+ ld [SoundOutput], a
+ ret
+; e8350
+
+Tablee8350: ; e8350
+ db $80 ; duty 50%
+ db $e2 ; volume $e, envelope decrease sweep 2
+ db $50 ; frequency: $750
+ db $87 ; restart sound
+; e8354
+
+Tablee8354: ; e8354
+ db $80 ; duty 50%
+ db $e2 ; volume $e, envelope decrease sweep 2
+ db $ee ; frequency: $6ee
+ db $86 ; restart sound
+; e8358
+
+FadeMusic: ; e8358
+; fade music if applicable
+; usage:
+; write to MusicFade
+; song fades out at the given rate
+; load song id in MusicFadeID
+; fade new song in
+; notes:
+; max # frames per volume level is $3f
+
+ ; fading?
+ ld a, [MusicFade]
+ and a
+ ret z
+ ; has the count ended?
+ ld a, [MusicFadeCount]
+ and a
+ jr z, .update
+ ; count down
+ dec a
+ ld [MusicFadeCount], a
+ ret
+.update
+ ld a, [MusicFade]
+ ld d, a
+ ; get new count
+ and a, $3f
+ ld [MusicFadeCount], a
+ ; get SO1 volume
+ ld a, [Volume]
+ and a, $07
+ ; which way are we fading?
+ bit 7, d
+ jr nz, .fadein
+ ; fading out
+ and a
+ jr z, .novolume
+ dec a
+ jr .updatevolume
+.novolume
+ ; make sure volume is off
+ xor a
+ ld [Volume], a
+ ; did we just get on a bike?
+ ld a, [PlayerState]
+ cp a, $01 ; bicycle
+ jr z, .bicycle
+ push bc
+ ; restart sound
+ call MusicFadeRestart
+ ; get new song id
+ ld a, [MusicFadeIDLo]
+ and a
+ jr z, .quit ; this assumes there are fewer than 256 songs!
+ ld e, a
+ ld a, [MusicFadeIDHi]
+ ld d, a
+ ; load new song
+ call LoadMusic
+.quit
+ ; cleanup
+ pop bc
+ ; stop fading
+ xor a
+ ld [MusicFade], a
+ ret
+.bicycle
+ push bc
+ ; restart sound
+ call MusicFadeRestart
+ ; this turns the volume up
+ ; turn it back down
+ xor a
+ ld [Volume], a
+ ; get new song id
+ ld a, [MusicFadeIDLo]
+ ld e, a
+ ld a, [MusicFadeIDHi]
+ ld d, a
+ ; load new song
+ call LoadMusic
+ pop bc
+ ; fade in
+ ld hl, MusicFade
+ set 7, [hl]
+ ret
+.fadein
+ ; are we done?
+ cp a, $07
+ jr nc, .maxvolume
+ ; inc volume
+ inc a
+ jr .updatevolume
+.maxvolume
+ ; we're done
+ xor a
+ ld [MusicFade], a
+ ret
+.updatevolume
+ ; hi = lo
+ ld d, a
+ swap a
+ or d
+ ld [Volume], a
+ ret
+; e83d1
+
+LoadNote: ; e83d1
+ ; check mute??
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ bit 1, [hl]
+ ret z
+ ; get note duration
+ ld hl, Channel1NoteDuration - Channel1
+ add hl, bc
+ ld a, [hl]
+ ld hl, $c297 ; ????
+ sub [hl]
+ jr nc, .ok
+ ld a, $01
+.ok
+ ld [hl], a
+ ; get frequency
+ ld hl, Channel1Frequency - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; ????
+ ld hl, $0021
+ add hl, bc
+ ld a, e
+ sub [hl]
+ ld e, a
+ ld a, d
+ sbc a, $00
+ ld d, a
+ ; ????
+ ld hl, $0022
+ add hl, bc
+ sub [hl]
+ jr nc, .asm_e8420
+ ; ????
+ ld hl, Channel1Flags3 - Channel1
+ add hl, bc
+ set 1, [hl]
+ ; get frequency
+ ld hl, Channel1Frequency - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; ????
+ ld hl, $0021
+ add hl, bc
+ ld a, [hl]
+ sub e
+ ld e, a
+ ld a, d
+ sbc a, $00
+ ld d, a
+ ; ????
+ ld hl, $0022
+ add hl, bc
+ ld a, [hl]
+ sub d
+ ld d, a
+ jr .asm_e843e
+.asm_e8420
+ ; ????
+ ld hl, Channel1Flags3 - Channel1
+ add hl, bc
+ res 1, [hl]
+ ; get frequency
+ ld hl, Channel1Frequency - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; ????
+ ld hl, $0021
+ add hl, bc
+ ld a, e
+ sub [hl]
+ ld e, a
+ ld a, d
+ sbc a, $00
+ ld d, a
+ ; ????
+ ld hl, $0022
+ add hl, bc
+ sub [hl]
+ ld d, a
+.asm_e843e
+ push bc
+ ld hl, $c297
+ ld b, $00 ; loop count
+.loop
+ inc b
+ ld a, e
+ sub [hl]
+ ld e, a
+ jr nc, .loop
+ ld a, d
+ and a
+ jr z, .quit
+ dec d
+ jr .loop
+.quit
+ ld a, e ; result
+ add [hl]
+ ld d, b ; loop count
+ ; ????
+ pop bc
+ ld hl, $0023
+ add hl, bc
+ ld [hl], d
+ ld hl, $0024
+ add hl, bc
+ ld [hl], a
+ ; clear ????
+ ld hl, $0025
+ add hl, bc
+ xor a
+ ld [hl], a
+ ret
+; e8466
+
+Functione8466: ; e8466
+; handle vibrato and other things
+; unknowns: $c292, $c294
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ bit 2, [hl]
+ jr z, .next
+ ld hl, $001c
+ add hl, bc
+ ld a, [hl]
+ rlca
+ rlca
+ ld [hl], a
+ and a, $c0
+ ld [$c292], a
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 0, [hl]
+.next
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ bit 4, [hl]
+ jr z, .vibrato
+ ld hl, $0027
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ld hl, $c294
+ ld a, [hli]
+ ld h, [hl]
+ ld l, a
+ add hl, de
+ ld e, l
+ ld d, h
+ ld hl, $c294
+ ld [hl], e
+ inc hl
+ ld [hl], d
+.vibrato
+ ; is vibrato on?
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ bit 0, [hl] ; vibrato
+ jr z, .quit
+ ; is vibrato active for this note yet?
+ ; is the delay over?
+ ld hl, Channel1VibratoDelayCount - Channel1
+ add hl, bc
+ ld a, [hl]
+ and a
+ jr nz, .subexit
+ ; is the extent nonzero?
+ ld hl, Channel1VibratoExtent - Channel1
+ add hl, bc
+ ld a, [hl]
+ and a
+ jr z, .quit
+ ; save it for later
+ ld d, a
+ ; is it time to toggle vibrato up/down?
+ ld hl, Channel1VibratoRate - Channel1
+ add hl, bc
+ ld a, [hl]
+ and a, $0f ; count
+ jr z, .toggle
+.subexit
+ dec [hl]
+ jr .quit
+.toggle
+ ; refresh count
+ ld a, [hl]
+ swap [hl]
+ or [hl]
+ ld [hl], a
+ ; ????
+ ld a, [$c294]
+ ld e, a
+ ; toggle vibrato up/down
+ ld hl, Channel1Flags3 - Channel1
+ add hl, bc
+ bit 0, [hl] ; vibrato up/down
+ jr z, .down
+; up
+ ; vibrato down
+ res 0, [hl]
+ ; get the delay
+ ld a, d
+ and a, $0f ; lo
+ ;
+ ld d, a
+ ld a, e
+ sub d
+ jr nc, .asm_e84ef
+ ld a, $00
+ jr .asm_e84ef
+.down
+ ; vibrato up
+ set 0, [hl]
+ ; get the delay
+ ld a, d
+ and a, $f0 ; hi
+ swap a ; move it to lo
+ ;
+ add e
+ jr nc, .asm_e84ef
+ ld a, $ff
+.asm_e84ef
+ ld [$c294], a
+ ;
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 6, [hl]
+.quit
+ ret
+; e84f9
+
+Functione84f9: ; e84f9
+ ; quit if ????
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ bit 1, [hl]
+ ret z
+ ; de = Frequency
+ ld hl, Channel1Frequency - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ;
+ ld hl, Channel1Flags3 - Channel1
+ add hl, bc
+ bit 1, [hl]
+ jr z, .next
+ ;
+ ld hl, $0023
+ add hl, bc
+ ld l, [hl]
+ ld h, $00
+ add hl, de
+ ld d, h
+ ld e, l
+ ; get ????
+ ld hl, $0024
+ add hl, bc
+ ld a, [hl]
+ ; add it to ????
+ ld hl, $0025
+ add hl, bc
+ add [hl]
+ ld [hl], a
+ ld a, $00
+ adc e
+ ld e, a
+ ld a, $00
+ adc d
+ ld d, a
+ ;
+ ld hl, $0022
+ add hl, bc
+ ld a, [hl]
+ cp d
+ jp c, .quit1
+ jr nz, .quit2
+ ld hl, $0021
+ add hl, bc
+ ld a, [hl]
+ cp e
+ jp c, .quit1
+ jr .quit2
+.next
+ ld a, e
+ ld hl, $0023
+ add hl, bc
+ ld e, [hl]
+ sub e
+ ld e, a
+ ld a, d
+ sbc a, $00
+ ld d, a
+ ld hl, $0024
+ add hl, bc
+ ld a, [hl]
+ add a
+ ld [hl], a
+ ld a, e
+ sbc a, $00
+ ld e, a
+ ld a, d
+ sbc a, $00
+ ld d,a
+ ld hl, $0022
+ add hl, bc
+ ld a, d
+ cp [hl]
+ jr c, .quit1
+ jr nz, .quit2
+ ld hl, $0021
+ add hl, bc
+ ld a, e
+ cp [hl]
+ jr nc, .quit2
+.quit1
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ res 1, [hl]
+ ld hl, Channel1Flags3 - Channel1
+ add hl, bc
+ res 1, [hl]
+ ret
+.quit2
+ ld hl, Channel1Frequency - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 1, [hl]
+ set 0, [hl]
+ ret
+; e858c
+
+HandleNoise: ; e858c
+ ; is noise sampling on?
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 4, [hl] ; noise sampling
+ ret z
+ ; are we in a sfx channel?
+ ld a, [CurChannel]
+ bit 2, a ; sfx
+ jr nz, .next
+ ; is ch8 on? (noise)
+ ld hl, $c262 ; Channel8Flags
+ bit 0, [hl] ; on?
+ jr z, .next
+ ; is ch8 playing noise?
+ bit 4, [hl]
+ ret nz ; quit if so
+ ;
+.next
+ ld a, [$c2a2]
+ and a
+ jr z, ReadNoiseSample
+ dec a
+ ld [$c2a2], a
+ ret
+; e85af
+
+ReadNoiseSample: ; e85af
+; sample struct:
+; [wx] [yy] [zz]
+; w: ? either 2 or 3
+; x: ? 0-7
+; zzyy: pointer to sample data
+; NOTE: these seem to have $4000 added to them later
+
+ ; de = NoiseSampleAddress
+ ld hl, NoiseSampleAddress
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; is it empty?
+ ld a, e
+ or d
+ jr z, .quit
+ ; get the noise sample
+ ld a, [de]
+ inc de
+ ; are we done?
+ cp a, $ff
+ jr z, .quit
+ ;
+ and a, $0f ; bottom nybble
+ inc a
+ ld [$c2a2], a
+ ld a, [de]
+ inc de
+ ld [$c293], a
+ ld a, [de]
+ inc de
+ ld [$c294], a
+ xor a
+ ld [$c295], a
+ ;
+ ld hl, NoiseSampleAddress
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 4, [hl]
+ ret
+.quit
+ ret
+; e85e1
+
+ParseMusic: ; e85e1
+; parses until a note is read or the song is ended
+ call GetMusicByte ; store next byte in a
+ cp a, $ff ; is the song over?
+ jr z, .readff
+ cp a, $d0 ; is it a note?
+ jr c, .readnote
+ ; then it's a command
+.readcommand
+ call ParseCommand
+ jr ParseMusic ; start over
+
+.readnote
+; CurMusicByte contains current note
+; special notes
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 3, [hl]
+ jp nz, Functione8698
+ bit 5, [hl]
+ jp nz, Functione8698
+ bit 4, [hl] ; noise sample
+ jp nz, GetNoiseSample
+; normal note
+ ; set note duration (bottom nybble)
+ ld a, [CurMusicByte]
+ and a, $0f
+ call SetNoteDuration
+ ; get note pitch (top nybble)
+ ld a, [CurMusicByte]
+ swap a
+ and a, $0f
+ jr z, .rest ; pitch $0 -> rest
+ ; update pitch
+ ld hl, Channel1Pitch - Channel1
+ add hl, bc
+ ld [hl], a
+ ; store pitch in e
+ ld e, a
+ ; store octave in d
+ ld hl, Channel1Octave - Channel1
+ add hl, bc
+ ld d, [hl]
+ ; update frequency
+ call GetFrequency
+ ld hl, Channel1Frequency - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ; ????
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 4, [hl]
+ jp LoadNote
+.rest
+; note = rest
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 5, [hl] ; Rest
+ ret
+;
+.readff
+; $ff is reached in music data
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 1, [hl] ; in a subroutine?
+ jr nz, .readcommand ; execute
+ ld a, [CurChannel]
+ cp a, $04 ; channels 0-3?
+ jr nc, .asm_e8651
+ ; ????
+ ld hl, $00cb
+ add hl, bc
+ bit 0, [hl]
+ jr nz, .ok
+.asm_e8651
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 5, [hl]
+ call nz, RestoreVolume
+ ; end music
+ ld a, [CurChannel]
+ cp a, $04 ; channel 5?
+ jr nz, .ok
+ ; ????
+ xor a
+ ld [$ff00+$10], a ; sweep = 0
+.ok
+; stop playing
+ ; turn channel off
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ res 0, [hl]
+ ; note = rest
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 5, [hl]
+ ; clear music id & bank
+ ld hl, Channel1MusicID - Channel1
+ add hl, bc
+ xor a
+ ld [hli], a ; id hi
+ ld [hli], a ; id lo
+ ld [hli], a ; bank
+ ret
+; e8679
+
+RestoreVolume: ; e8679
+ ; ch5 only
+ ld a, [CurChannel]
+ cp a, $04
+ ret nz
+ xor a
+ ld hl, $c222
+ ld [hli], a
+ ld [hl], a
+ ld hl, $c286
+ ld [hli], a
+ ld [hl], a
+ ld a, [LastVolume]
+ ld [Volume], a
+ xor a
+ ld [LastVolume], a
+ ld [SFXPriority], a
+ ret
+; e8698
+
+Functione8698: ; e8698
+ ; turn noise sampling on
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 4, [hl] ; noise sample
+ ; update note duration
+ ld a, [CurMusicByte]
+ call SetNoteDuration ; top nybble doesnt matter?
+ ; update intensity from next param
+ call GetMusicByte
+ ld hl, Channel1Intensity - Channel1
+ add hl, bc
+ ld [hl], a
+ ; update lo frequency from next param
+ call GetMusicByte
+ ld hl, Channel1FrequencyLo - Channel1
+ add hl, bc
+ ld [hl], a
+ ; are we on the last channel? (noise sampling)
+ ld a, [CurChannel]
+ and a, $03
+ cp a, $03
+ ret z
+ ; update hi frequency from next param
+ call GetMusicByte
+ ld hl, Channel1FrequencyHi - Channel1
+ add hl, bc
+ ld [hl], a
+ ret
+; e86c5
+
+GetNoiseSample: ; e86c5
+; load ptr to sample header in NoiseSampleAddress
+ ; are we on the last channel?
+ ld a, [CurChannel]
+ and a, $03
+ cp a, $03
+ ; ret if not
+ ret nz
+ ; update note duration
+ ld a, [CurMusicByte]
+ and a, $0f
+ call SetNoteDuration
+ ; check current channel
+ ld a, [CurChannel]
+ bit 2, a ; are we in a sfx channel?
+ jr nz, .sfx
+ ld hl, $c262 ; Channel8Flags
+ bit 0, [hl] ; is ch8 on? (noise)
+ ret nz
+ ld a, [MusicNoiseSampleSet]
+ jr .next
+.sfx
+ ld a, [SFXNoiseSampleSet]
+.next
+ ; load noise sample set id into de
+ ld e, a
+ ld d, $00
+ ; load ptr to noise sample set in hl
+ ld hl, NoiseSampleSetsPointers
+ add hl, de
+ add hl, de
+ ld a, [hli]
+ ld h, [hl]
+ ld l, a
+ ; get pitch
+ ld a, [CurMusicByte]
+ swap a
+ ; non-rest note?
+ and a, $0f
+ ret z
+ ; use 'pitch' to seek noise sample set
+ ld e, a
+ ld d, $00
+ add hl, de
+ add hl, de
+ ; load sample pointer into NoiseSampleAddress
+ ld a, [hli]
+ ld [NoiseSampleAddressLo], a
+ ld a, [hl]
+ ld [NoiseSampleAddressHi], a
+ ; clear ????
+ xor a
+ ld [$c2a2], a
+ ret
+; e870f
+
+ParseCommand ; e870f
+ ; reload command
+ ld a, [CurMusicByte]
+ ; get command #
+ sub a, $d0 ; first command
+ ld e, a
+ ld d, $00
+ ; seek command pointer
+ ld hl, MusicCommands
+ add hl, de
+ add hl, de
+ ; jump to the new pointer
+ ld a, [hli]
+ ld h, [hl]
+ ld l, a
+ jp [hl]
+; e8720
+
+MusicCommands: ; e8720
+; pointer to each command in order
+ ; octaves
+ dw MusicD0 ; octave 8
+ dw MusicD0 ; octave 7
+ dw MusicD0 ; octave 6
+ dw MusicD0 ; octave 5
+ dw MusicD0 ; octave 4
+ dw MusicD0 ; octave 3
+ dw MusicD0 ; octave 2
+ dw MusicD0 ; octave 1
+ dw MusicD8 ; note length + intensity
+ dw MusicD9 ; set starting octave
+ dw MusicDA ; tempo
+ dw MusicDB ; duty cycle
+ dw MusicDC ; intensity
+ dw MusicDD ; update sound status
+ dw MusicDE ; ???? + duty cycle
+ dw MusicDF ;
+ dw MusicE0 ;
+ dw MusicE1 ; vibrato
+ dw MusicE2 ;
+ dw MusicE3 ; music noise sampling
+ dw MusicE4 ; force panning
+ dw MusicE5 ; volume
+ dw MusicE6 ; tune
+ dw MusicE7 ;
+ dw MusicE8 ;
+ dw MusicE9 ; global tempo
+ dw MusicEA ; restart current channel from header
+ dw MusicEB ; new song
+ dw MusicEC ; sfx priority on
+ dw MusicED ; sfx priority off
+ dw MusicEE ;
+ dw MusicEF ; stereo panning
+ dw MusicF0 ; sfx noise sampling
+ dw MusicF1 ; nothing
+ dw MusicF1 ; nothing
+ dw MusicF1 ; nothing
+ dw MusicF1 ; nothing
+ dw MusicF1 ; nothing
+ dw MusicF1 ; nothing
+ dw MusicF1 ; nothing
+ dw MusicF1 ; nothing
+ dw MusicF9 ;
+ dw MusicFA ;
+ dw MusicFB ;
+ dw MusicFC ; jump
+ dw MusicFD ; loop
+ dw MusicFE ; call
+ dw MusicFF ; return
+; e8780
+
+MusicF1: ; e8780
+ ret
+; e8781
+
+MusicFF: ; e8781
+; called when $ff is encountered w/ subroutine flag set
+; end music stream
+; return to caller of the subroutine
+ ; reset subroutine flag
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ res 1, [hl]
+ ; copy LastMusicAddress to MusicAddress
+ ld hl, Channel1LastMusicAddress - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ret
+; e8796
+
+MusicFE: ; e8796
+; call music stream (subroutine)
+; parameters: ll hh ; pointer to subroutine
+ ; get pointer from next 2 bytes
+ call GetMusicByte
+ ld e, a
+ call GetMusicByte
+ ld d, a
+ push de
+ ; copy MusicAddress to LastMusicAddress
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ld hl, Channel1LastMusicAddress - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ; load pointer into MusicAddress
+ pop de
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ; set subroutine flag
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ set 1, [hl]
+ ret
+; e87bc
+
+MusicFC: ; e87bc
+; jump
+; parameters: ll hh ; pointer
+ ; get pointer from next 2 bytes
+ call GetMusicByte
+ ld e, a
+ call GetMusicByte
+ ld d, a
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ret
+; e87cc
+
+MusicFD: ; e87cc
+; loops xx - 1 times
+; 00: infinite
+; params: 3
+; xx ll hh
+; xx : loop count
+; ll hh : pointer
+
+ ; get loop count
+ call GetMusicByte
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 2, [hl] ; has the loop been initiated?
+ jr nz, .checkloop
+ and a ; loop counter 0 = infinite
+ jr z, .loop
+ ; initiate loop
+ dec a
+ set 2, [hl] ; set loop flag
+ ld hl, Channel1LoopCount - Channel1
+ add hl, bc
+ ld [hl], a ; store loop counter
+.checkloop
+ ld hl, Channel1LoopCount - Channel1
+ add hl, bc
+ ld a, [hl]
+ and a ; are we done?
+ jr z, .endloop
+ dec [hl]
+.loop
+ ; get pointer
+ call GetMusicByte
+ ld e, a
+ call GetMusicByte
+ ld d, a
+ ; load new pointer into MusicAddress
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ret
+
+.endloop
+ ; reset loop flag
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ res 2, [hl]
+ ; skip to next command
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ inc de ; skip
+ inc de ; pointer
+ ld [hl], d
+ dec hl
+ ld [hl], e
+ ret
+; e880e
+
+MusicFA: ; e880e
+; set condition for a jump
+; used with FB
+; params: 1
+; xx ; condition
+
+ ; set condition
+ call GetMusicByte
+ ld hl, Channel1Condition - Channel1
+ add hl, bc
+ ld [hl], a
+ ret
+; e8817
+
+MusicFB: ; e8817
+; conditional jump
+; used with FA
+; params: 3
+; xx: condition
+; ll hh: pointer
+
+; check condition
+ ; a = condition
+ call GetMusicByte
+ ; if existing condition matches, jump to new address
+ ld hl, Channel1Condition - Channel1
+ add hl, bc
+ cp [hl]
+ jr z, .jump
+; skip to next command
+ ; get address
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; skip pointer
+ inc de
+ inc de
+ ; update address
+ ld [hl], d
+ dec hl
+ ld [hl], e
+ ret
+.jump
+; jump to the new address
+ ; get pointer
+ call GetMusicByte
+ ld e, a
+ call GetMusicByte
+ ld d, a
+ ; update pointer in MusicAddress
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ret
+; e883e
+
+MusicEE; e883e
+; conditional jump
+; checks a byte in ram corresponding to the current channel
+; doesn't seem to be set by any commands
+; params: 2
+; ll hh ; pointer
+
+; if ????, jump
+ ; get channel
+ ld a, [CurChannel]
+ and a, $03 ; ch0-3
+ ld e, a
+ ld d, $00
+ ; hl = $c2b8 + channel id
+ ld hl, $c2b8
+ add hl, de
+ ; if set, jump
+ ld a, [hl]
+ and a
+ jr nz, .jump
+; skip to next command
+ ; get address
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; skip pointer
+ inc de
+ inc de
+ ; update address
+ ld [hl], d
+ dec hl
+ ld [hl], e
+ ret
+.jump
+ ; reset jump flag
+ ld [hl], $00
+ ; de = pointer
+ call GetMusicByte
+ ld e, a
+ call GetMusicByte
+ ld d, a
+ ; update address
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ret
+; e886d
+
+MusicF9: ; e886d
+; sets some flag
+; seems to be unused
+; params: 0
+ ld a, $01
+ ld [$c2b5], a
+ ret
+; e8873
+
+MusicE2: ; e8873
+; seems to have been dummied out
+; params: 1
+ call GetMusicByte
+ ld hl, $002c
+ add hl, bc
+ ld [hl], a
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 3, [hl]
+ ret
+; e8882
+
+MusicE1: ; e8882
+; vibrato
+; params: 2
+; 1: [xx]
+ ; delay in frames
+; 2: [yz]
+ ; y: extent
+ ; z: rate (# frames per cycle)
+
+ ; set vibrato flag?
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 0, [hl]
+ ; start at lower frequency (extent is positive)
+ ld hl, Channel1Flags3 - Channel1
+ add hl, bc
+ res 0, [hl]
+ ; get delay
+ call GetMusicByte
+; update delay
+ ld hl, Channel1VibratoDelay - Channel1
+ add hl, bc
+ ld [hl], a
+; update delay count
+ ld hl, Channel1VibratoDelayCount - Channel1
+ add hl, bc
+ ld [hl], a
+; update extent
+; this is split into halves only to get added back together at the last second
+ ; get extent/rate
+ call GetMusicByte
+ ld hl, Channel1VibratoExtent - Channel1
+ add hl, bc
+ ld d, a
+ ; get top nybble
+ and a, $f0
+ swap a
+ srl a ; halve
+ ld e, a
+ adc a, $00 ; round up
+ swap a
+ or e
+ ld [hl], a
+; update rate
+ ld hl, Channel1VibratoRate - Channel1
+ add hl, bc
+ ; get bottom nybble
+ ld a, d
+ and a, $0f
+ ld d, a
+ swap a
+ or d
+ ld [hl], a
+ ret
+; e88bd
+
+MusicE0: ; e88bd
+; ????
+; params: 2
+ call GetMusicByte
+ ld [$c297], a
+ call GetMusicByte
+ ld d, a
+ and a, $0f
+ ld e, a
+ ld a, d
+ swap a
+ and a, $0f
+ ld d, a
+ call GetFrequency
+ ld hl, $0021
+ add hl, bc
+ ld [hl], e
+ ld hl, $0022
+ add hl, bc
+ ld [hl], d
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 1, [hl]
+ ret
+; e88e4
+
+MusicE6: ; e88e4
+; tone
+; params: 2
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 4, [hl]
+ ld hl, $0028
+ add hl, bc
+ call GetMusicByte
+ ld [hld], a
+ call GetMusicByte
+ ld [hl], a
+ ret
+; e88f7
+
+MusicE7: ; e88f7
+; shrug
+; params: 1
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 6, [hl]
+ call GetMusicByte
+ ld hl, $0029
+ add hl, bc
+ ld [hl], a
+ ret
+; e8906
+
+MusicDE: ; e8906
+; ???? + duty cycle
+; params: 1
+ ;
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 2, [hl] ; duty cycle
+ ;
+ call GetMusicByte
+ rrca
+ rrca
+ ld hl, $001c
+ add hl, bc
+ ld [hl], a
+ ; update duty cycle
+ and a, $c0 ; only uses top 2 bits
+ ld hl, Channel1DutyCycle - Channel1
+ add hl, bc
+ ld [hl], a
+ ret
+; e891e
+
+MusicE8: ; e891e
+; shrug
+; params: 1
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 5, [hl]
+ call GetMusicByte
+ ld hl, $002a
+ add hl, bc
+ ld [hl], a
+ ret
+; e892d
+
+MusicDF: ; e892d
+; toggle something
+; params: none
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 3, [hl]
+ jr z, .on
+ res 3, [hl]
+ ret
+.on
+ set 3, [hl]
+ ret
+; e893b
+
+MusicE3: ; e893b
+; toggle music noise sampling
+; can't be used as a straight toggle since the param is not read from on->off
+; params:
+; noise on: 1
+; noise off: 0
+ ; check if noise sampling is on
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 4, [hl]
+ jr z, .on
+ ; turn noise sampling off
+ res 4, [hl]
+ ret
+.on
+ ; turn noise sampling on
+ set 4, [hl]
+ call GetMusicByte
+ ld [MusicNoiseSampleSet], a
+ ret
+; e894f
+
+MusicF0: ; e894f
+; toggle sfx noise sampling
+; params:
+; on: 1
+; off: 0
+ ; check if noise sampling is on
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ bit 4, [hl]
+ jr z, .on
+ ; turn noise sampling off
+ res 4, [hl]
+ ret
+.on
+ ; turn noise sampling on
+ set 4, [hl]
+ call GetMusicByte
+ ld [SFXNoiseSampleSet], a
+ ret
+; e8963
+
+MusicD8: ; e8963
+; note length
+; # frames per 16th note
+; intensity: see MusicDC
+; params: 2
+ ; note length
+ call GetMusicByte
+ ld hl, $002d
+ add hl, bc
+ ld [hl], a
+ ld a, [CurChannel]
+ and a, $03
+ cp a, $03
+ ret z
+ ; intensity
+ call MusicDC
+ ret
+; e8977
+
+MusicDD: ; e8977
+; update sound status
+; params: 1
+ call GetMusicByte
+ ld [SoundInput], a
+ ld hl, Channel1NoteFlags - Channel1
+ add hl, bc
+ set 3, [hl]
+ ret
+; e8984
+
+MusicDB: ; e8984
+; duty cycle
+; params: 1
+ call GetMusicByte
+ rrca
+ rrca
+ and a, $c0
+ ld hl, Channel1DutyCycle - Channel1
+ add hl, bc
+ ld [hl], a
+ ret
+; e8991
+
+MusicDC: ; e8991
+; intensity
+; params: 1
+; hi: pressure
+; lo: velocity
+ call GetMusicByte
+ ld hl, Channel1Intensity - Channel1
+ add hl, bc
+ ld [hl], a
+ ret
+; e899a
+
+MusicDA: ; e899a
+; global tempo
+; params: 2
+; de: tempo
+ call GetMusicByte
+ ld d, a
+ call GetMusicByte
+ ld e, a
+ call SetGlobalTempo
+ ret
+; e89a6
+
+MusicD0: ; e89a6
+; used by d0-d7
+; set octave based on lo nybble of the command
+ ld hl, Channel1Octave - Channel1
+ add hl, bc
+ ld a, [CurMusicByte] ; get current command
+ and a, $07
+ ld [hl], a
+ ret
+; e89b1
+
+MusicD9: ; e89b1
+; set starting octave
+; this forces all notes up by the starting octave
+; params: 1
+ call GetMusicByte
+ ld hl, Channel1StartingOctave - Channel1
+ add hl, bc
+ ld [hl], a
+ ret
+; e89ba
+
+MusicEF: ; e89ba
+; stereo panning
+; params: 1
+ ; stereo on?
+ ld a, [Options]
+ bit 5, a ; stereo
+ jr nz, MusicE4
+ ; skip param
+ call GetMusicByte
+ ret
+; e89c5
+
+MusicE4: ; e89c5
+; force panning
+; params: 1
+ call SetLRTracks
+ call GetMusicByte
+ ld hl, Channel1Tracks - Channel1
+ add hl, bc
+ and [hl]
+ ld [hl], a
+ ret
+; e89d2
+
+MusicE5: ; e89d2
+; set volume
+; params: 1
+; see Volume
+ ; read param even if it's not used
+ call GetMusicByte
+ ; is the song fading?
+ ld a, [MusicFade]
+ and a
+ ret nz
+ ; reload param
+ ld a, [CurMusicByte]
+ ; set volume
+ ld [Volume], a
+ ret
+; e89e1
+
+MusicE9: ; e89e1
+; set global tempo to current channel tempo +- param
+; params: 1 signed
+ call GetMusicByte
+ ld e, a
+ ; check sign
+ cp a, $80
+ jr nc, .negative
+;positive
+ ld d, $00
+ jr .ok
+.negative
+ ld d, $ff
+.ok
+ ld hl, Channel1Tempo - Channel1
+ add hl, bc
+ ld a, [hli]
+ ld h, [hl]
+ ld l, a
+ add hl, de
+ ld e, l
+ ld d, h
+ call SetGlobalTempo
+ ret
+; e89fd
+
+MusicEC: ; e89fd
+; turn sfx priority on
+; params: none
+ ld a, $01
+ ld [SFXPriority], a
+ ret
+; e8a03
+
+MusicED: ; e8a03
+; turn sfx priority off
+; params: none
+ xor a
+ ld [SFXPriority], a
+ ret
+; e8a08
+
+MusicEA: ; e8a08
+; restart current channel from channel header (same bank)
+; params: 2 (5)
+; ll hh: pointer to new channel header
+; header format: 0x yy zz
+; x: channel # (0-3)
+; zzyy: pointer to new music data
+
+ ; update music id
+ ld hl, Channel1MusicID - Channel1
+ add hl, bc
+ ld a, [hli]
+ ld [MusicIDLo], a
+ ld a, [hl]
+ ld [MusicIDHi], a
+ ; update music bank
+ ld hl, Channel1MusicBank - Channel1
+ add hl, bc
+ ld a, [hl]
+ ld [MusicBank], a
+ ; get pointer to new channel header
+ call GetMusicByte
+ ld l, a
+ call GetMusicByte
+ ld h, a
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ push bc ; save current channel
+ call LoadChannel
+ call StartChannel
+ pop bc ; restore current channel
+ ret
+; e8a30
+
+MusicEB: ; e8a30
+; new song
+; params: 2
+; de: song id
+ call GetMusicByte
+ ld e, a
+ call GetMusicByte
+ ld d, a
+ push bc
+ call LoadMusic
+ pop bc
+ ret
+; e8a3e
+
+GetMusicByte: ; e8a3e
+; returns byte from current address in a
+; advances to next byte in music data
+; input: bc = start of current channel
+ push hl
+ push de
+ ; load address into de
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld a, [hli]
+ ld e, a
+ ld d, [hl]
+ ; load bank into a
+ ld hl, Channel1MusicBank - Channel1
+ add hl, bc
+ ld a, [hl]
+ ; get byte
+ call LoadMusicByte ; load data into CurMusicByte
+ inc de ; advance to next byte for next time this is called
+ ; update channeldata address
+ ld hl, Channel1MusicAddress - Channel1
+ add hl, bc
+ ld a, e
+ ld [hli], a
+ ld [hl], d
+ ; cleanup
+ pop de
+ pop hl
+ ; store channeldata in a
+ ld a, [CurMusicByte]
+ ret
+; e8a5d
+
+GetFrequency: ; e8a5d
+; generate frequency
+; input:
+; d: octave
+; e: pitch
+; output:
+; de: frequency
+
+; get octave
+ ; get starting octave
+ ld hl, Channel1StartingOctave - Channel1
+ add hl, bc
+ ld a, [hl]
+ swap a ; hi nybble
+ and a, $0f
+ ; add current octave
+ add d
+ push af ; we'll use this later
+ ; get starting octave
+ ld hl, Channel1StartingOctave - Channel1
+ add hl, bc
+ ld a, [hl]
+ and a, $0f ; lo nybble
+ ;
+ ld l, a ; ok
+ ld d, $00
+ ld h, d
+ add hl, de ; add current pitch
+ add hl, hl ; skip 2 bytes for each
+ ld de, FrequencyTable
+ add hl, de
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; get our octave
+ pop af
+.loop
+ ; [7 - octave] loops
+ cp a, $07
+ jr nc, .ok
+ ; sra de
+ sra d
+ rr e
+ inc a
+ jr .loop
+.ok
+ ld a, d
+ and a, $07 ; top 3 bits for frequency (11 total)
+ ld d, a
+ ret
+; e8a8d
+
+SetNoteDuration: ; e8a8d
+; input: a = note duration in 16ths
+ ; store delay units in de
+ inc a
+ ld e, a
+ ld d, $00
+ ; store NoteLength in a
+ ld hl, Channel1NoteLength - Channel1
+ add hl, bc
+ ld a, [hl]
+ ; multiply NoteLength by delay units
+ ld l, $00 ; just multiply
+ call MultiplySimple
+ ld a, l ; % $100
+ ; store Tempo in de
+ ld hl, Channel1Tempo - Channel1
+ add hl, bc
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+ ; add ???? to the next result
+ ld hl, $0016
+ add hl, bc
+ ld l, [hl]
+ ; multiply Tempo by last result (NoteLength * delay % $100)
+ call MultiplySimple
+ ; copy result to de
+ ld e, l
+ ld d, h
+ ; store result in ????
+ ld hl, $0016
+ add hl, bc
+ ld [hl], e
+ ; store result in NoteDuration
+ ld hl, Channel1NoteDuration - Channel1
+ add hl, bc
+ ld [hl], d
+ ret
+; e8ab8
+
+MultiplySimple: ; e8ab8
+; multiplies a and de
+; adds the result to l
+; stores the result in hl
+ ld h, $00
+.loop
+ ; halve a
+ srl a
+ ; is there a remainder?
+ jr nc, .skip
+ ; add it to the result
+ add hl, de
+.skip
+ ; add de, de
+ sla e
+ rl d
+ ; are we done?
+ and a
+ jr nz, .loop
+ ret
+; e8ac7
+
+SetGlobalTempo: ; e8ac7
+ push bc ; save current channel
+ ; are we dealing with music or sfx?
+ ld a, [CurChannel]
+ cp a, $04
+ jr nc, .sfxchannels
+ ld bc, Channel1
+ call SetTempo
+ ld bc, Channel2
+ call SetTempo
+ ld bc, Channel3
+ call SetTempo
+ ld bc, Channel4
+ call SetTempo
+ jr .end
+.sfxchannels
+ ld bc, Channel5
+ call SetTempo
+ ld bc, Channel6
+ call SetTempo
+ ld bc, Channel7
+ call SetTempo
+ ld bc, Channel8
+ call SetTempo
+.end
+ pop bc ; restore current channel
+ ret
+; e8b03
+
+SetTempo: ; e8b03
+; input:
+; de: note length
+ ; update Tempo
+ ld hl, Channel1Tempo - Channel1
+ add hl, bc
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ; clear ????
+ xor a
+ ld hl, $0016
+ add hl, bc
+ ld [hl], a
+ ret
+; e8b11
+
StartChannel: ; e8b11
call SetLRTracks
- ld hl, $0003
+ ld hl, Channel1Flags - Channel1
add hl, bc
- set 0, [hl] ; channel on
+ set 0, [hl] ; turn channel on
ret
; e8b1b
SetLRTracks: ; e8b1b
-; input:
-; bc = Channels ($c101)
+; set tracks for a the current channel to default
; seems to be redundant since this is overwritten by stereo data later
push de
- ld a, [CurMusicChannel]
- and a, $03 ; bit 0-1
+ ; store current channel in de
+ ld a, [CurChannel]
+ and a, $03
ld e, a
ld d, $00
- call GetLRTracks ; hl = mono / stereo table
- add hl, de ; + channel #
- ld a, [hl] ; get result
- ld hl, Channel1LR - Channel1
+ ; get this channel's lr tracks
+ call GetLRTracks
+ add hl, de ; de = channel 0-3
+ ld a, [hl]
+ ; load lr tracks into Tracks
+ ld hl, Channel1Tracks - Channel1
add hl, bc
- ld [hl], a ; set tracks
+ ld [hl], a
pop de
ret
; e8b30
@@ -74451,7 +76660,7 @@
ld e, [hl]
inc hl
ld d, [hl] ; music header address
- call GetByteFromMusicHeader ; store first byte of music header in [a]
+ call FarLoadMusicByte ; store first byte of music header in a
rlca
rlca
and a, $03 ; get number of channels
@@ -74470,23 +76679,116 @@
ld [$c2b9], a
ld [$c2ba], a
ld [$c2bb], a
- ld [$c2a0], a
- ld [$c2a1], a
+ ld [NoiseSampleAddressLo], a
+ ld [NoiseSampleAddressHi], a
ld [$c2a2], a
- ld [$c2a4], a
+ ld [MusicNoiseSampleSet], a
call MusicOn
ret
; e8b79
-INCBIN "baserom.gbc",$e8b79,$e8c04 - $e8b79
+PlayCry: ; e8b79
+; input: de = cry id
+ call MusicOff
+ ; load cry id
+ ld hl, MusicID
+ ld [hl], e
+ inc hl
+ ld [hl], d
+ ; seek pointer table
+ ld hl, Cries
+ add hl, de
+ add hl, de
+ add hl, de
+ ; get bank
+ ld a, [hli]
+ ld [MusicBank], a
+ ; get address
+ ld e, [hl]
+ inc hl
+ ld d, [hl]
+; read cry header
+ ; get byte at bank:address
+ call FarLoadMusicByte
+ ; get top 2 bits (# chs)
+ rlca
+ rlca
+ and a, $03
+ inc a ; ch count -> loop count
+.loop
+ push af
+ call LoadChannel
+ ld hl, Channel1Flags - Channel1
+ add hl, bc
+ set 5, [hl]
+ ld hl, Channel1Flags2 - Channel1
+ add hl, bc
+ set 4, [hl]
+ ld hl, $0027
+ add hl, bc
+ ld a, [$c2b0]
+ ld [hli], a
+ ld a, [$c2b1]
+ ld [hl], a
+ ; are we on the last channel? (music & sfx)
+ ld a, [CurChannel]
+ and a, $03
+ cp a, $03
+ jr nc, .start
+ ; update tempo
+ ld hl, Channel1Tempo - Channel1
+ add hl, bc
+ ld a, [$c2b2]
+ ld [hli], a
+ ld a, [$c2b3]
+ ld [hl], a
+.start
+ call StartChannel
+ ld a, [$c2bc]
+ and a
+ jr z, .next
+; play cry from the side of the monster it's coming from (stereo only)
+; outside of battles cries play on both tracks
+ ; is stereo on?
+ ld a, [Options]
+ bit 5, a ; stereo
+ jr z, .next
+ ; and [Tracks], [CryTracks]
+ ld hl, Channel1Tracks - Channel1
+ add hl, bc
+ ld a, [hl]
+ ld hl, CryTracks
+ and a, [hl]
+ ld hl, Channel1Tracks - Channel1
+ add hl, bc
+ ld [hl], a
+.next
+ pop af
+ dec a
+ jr nz, .loop
+ ; save current volume
+ ld a, [LastVolume]
+ and a
+ jr nz, .end
+ ld a, [Volume]
+ ld [LastVolume], a
+ ; cries have max volume
+ ld a, $77
+ ld [Volume], a
+.end
+ ld a, $01 ; stop playing music
+ ld [SFXPriority], a
+ call MusicOn
+ ret
+; e8c04
LoadSFX: ; e8c04
; clear channels if they aren't already
call MusicOff
- ld hl, $c1cc ; ch5 on
- bit 0, [hl]
+ ld hl, $c1cc ; Channel5Flags
+ bit 0, [hl] ; ch5 on?
jr z, .ch6
- res 0, [hl]
+ res 0, [hl] ; turn it off
xor a
ld [$ff00+$11], a ; length/wavepattern = 0
ld a, $08
@@ -74496,13 +76798,13 @@
ld a, $80
ld [$ff00+$14], a ; restart sound (freq hi = 0)
xor a
- ld [$c29c], a ; ????
+ ld [SoundInput], a ; global sound off
ld [$ff00+$10], a ; sweep = 0
.ch6
- ld hl, $c1fe ; ch6 on
+ ld hl, $c1fe ; ch6 on?
bit 0, [hl]
jr z, .ch7
- res 0, [hl]
+ res 0, [hl] ; turn it off
xor a
ld [$ff00+$16], a ; length/wavepattern = 0
ld a, $08
@@ -74512,10 +76814,10 @@
ld a, $80
ld [$ff00+$19], a ; restart sound (freq hi = 0)
.ch7
- ld hl, $c230 ; ch7 on
+ ld hl, $c230 ; ch7 on?
bit 0, [hl]
jr z, .ch8
- res 0, [hl]
+ res 0, [hl] ; turn it off
xor a
ld [$ff00+$1a], a ; sound mode #3 off
ld [$ff00+$1b], a ; length/wavepattern = 0
@@ -74526,10 +76828,10 @@
ld a, $80
ld [$ff00+$1e], a ; restart sound (freq hi = 0)
.ch8
- ld hl, $c262 ; ch8 on
+ ld hl, $c262 ; ch8 on?
bit 0, [hl]
jr z, .chscleared
- res 0, [hl]
+ res 0, [hl] ; turn it off
xor a
ld [$ff00+$20], a ; length/wavepattern = 0
ld a, $08
@@ -74539,8 +76841,8 @@
ld a, $80
ld [$ff00+$23], a ; restart sound (freq hi = 0)
xor a
- ld [$c2a0], a
- ld [$c2a1], a
+ ld [NoiseSampleAddressLo], a
+ ld [NoiseSampleAddressHi], a
.chscleared
; start reading sfx header for # chs
ld hl, MusicID
@@ -74551,22 +76853,25 @@
add hl, de ; three
add hl, de ; byte
add hl, de ; pointers
+ ; get bank
ld a, [hli]
- ld [MusicBank], a ; get bank
- ld e, [hl] ; get address
+ ld [MusicBank], a
+ ; get address
+ ld e, [hl]
inc hl
ld d, [hl]
- call GetByteFromMusicHeader ; get # channels
- rlca
- rlca
- and a, $03 ; bit 0-1
+ ; get # channels
+ call FarLoadMusicByte
+ rlca ; top 2
+ rlca ; bits
+ and a, $03
inc a ; # channels -> # loops
.startchannels
push af
call LoadChannel ; bc = current channel
- ld hl, $0003
+ ld hl, Channel1Flags - Channel1
add hl, bc
- set 3, [hl] ; not sure what bit 3 does
+ set 3, [hl]
call StartChannel
pop af
dec a
@@ -74573,19 +76878,21 @@
jr nz, .startchannels
call MusicOn
xor a
- ld [$c2b6], a
+ ld [SFXPriority], a
ret
; e8ca6
-INCBIN "baserom.gbc",$e8ca6,$e8d1b - $e8ca6
+INCBIN "baserom.gbc", $e8ca6, $e8d1b - $e8ca6
LoadChannel: ; e8d1b
; prep channel for use
+; input:
+; de:
; get pointer to current channel
- call GetByteFromMusicHeader
+ call FarLoadMusicByte
inc de
and a, $07 ; bit 0-2 (current channel)
- ld [CurMusicChannel], a
+ ld [CurChannel], a
ld c, a
ld b, $00
ld hl, ChannelPointers
@@ -74594,7 +76901,7 @@
ld c, [hl]
inc hl
ld b, [hl] ; bc = channel pointer
- ld hl, $0003
+ ld hl, Channel1Flags - Channel1
add hl, bc
res 0, [hl] ; channel off
call ChannelInit
@@ -74601,10 +76908,10 @@
; load music pointer
ld hl, Channel1MusicAddress - Channel1
add hl, bc
- call GetByteFromMusicHeader
+ call FarLoadMusicByte
ld [hli], a
inc de
- call GetByteFromMusicHeader
+ call FarLoadMusicByte
ld [hl], a
inc de
; load music id
@@ -74623,46 +76930,393 @@
; e8d5b
ChannelInit: ; e8d5b
-; make sure channel is clean
+; make sure channel is cleared
; set default tempo and note length in case nothing is loaded
; input:
; bc = channel struct pointer
push de
xor a
- ld hl, $0000
+ ; get channel struct location and length
+ ld hl, Channel1MusicID - Channel1 ; start
add hl, bc
ld e, Channel2 - Channel1 ; channel struct length
-; clear channel struct
+ ; clear channel
.loop
ld [hli], a
dec e
jr nz, .loop
- ld hl, Channel1NoteLength - Channel1
+ ; set tempo to default ($100)
+ ld hl, Channel1Tempo - Channel1
add hl, bc
xor a
ld [hli], a
inc a
- ld [hl], a ; default note length $100
- ld hl, Channel1Tempo - Channel1
+ ld [hl], a
+ ; set note length to default ($01) (fast)
+ ld hl, Channel1NoteLength - Channel1
add hl, bc
- ld [hl], a ; default tempo $01 (fast)
+ ld [hl], a
pop de
ret
; e8d76
-GetByteFromMusicHeader: ; e8d76
+FarLoadMusicByte: ; e8d76
; input:
-; de = address of current spot in music header
+; de = current music address
; output:
-; a
+; a = CurMusicByte
ld a, [MusicBank]
- call LoadMusicHeader
- ld a, [MusicHeaderBuffer]
+ call LoadMusicByte
+ ld a, [CurMusicByte]
ret
; e8d80
-INCBIN "baserom.gbc",$e8d80,$e8fc2 - $e8d80
+FrequencyTable: ; e8d80
+ dw $0000 ; filler
+ dw $f82c
+ dw $f89d
+ dw $f907
+ dw $f96b
+ dw $f9ca
+ dw $fa23
+ dw $fa77
+ dw $fac7
+ dw $fb12
+ dw $fb58
+ dw $fb9b
+ dw $fbda
+ dw $fc16
+ dw $fc4e
+ dw $fc83
+ dw $fcb5
+ dw $fce5
+ dw $fd11
+ dw $fd3b
+ dw $fd63
+ dw $fd89
+ dw $fdac
+ dw $fdcd
+ dw $fded
+; e8db2
+WaveSamples: ; e8db2
+ ; these are streams of 32 4-bit values used as wavepatterns
+ ; nothing interesting here!
+ db $02, $46, $8a, $ce, $ff, $fe, $ed, $dc, $cb, $a9, $87, $65, $44, $33, $22, $11
+ db $02, $46, $8a, $ce, $ef, $ff, $fe, $ee, $dd, $cb, $a9, $87, $65, $43, $22, $11
+ db $13, $69, $bd, $ee, $ee, $ff, $ff, $ed, $de, $ff, $ff, $ee, $ee, $db, $96, $31
+ db $02, $46, $8a, $cd, $ef, $fe, $de, $ff, $ee, $dc, $ba, $98, $76, $54, $32, $10
+ db $01, $23, $45, $67, $8a, $cd, $ee, $f7, $7f, $ee, $dc, $a8, $76, $54, $32, $10
+ db $00, $11, $22, $33, $44, $33, $22, $11, $ff, $ee, $cc, $aa, $88, $aa, $cc, $ee
+ db $02, $46, $8a, $ce, $cb, $a9, $87, $65, $ff, $fe, $ed, $dc, $44, $33, $22, $11
+ db $c0, $a9, $87, $f5, $ff, $fe, $ed, $dc, $44, $33, $22, $f1, $02, $46, $8a, $ce
+ db $44, $33, $22, $1f, $00, $46, $8a, $ce, $f8, $fe, $ed, $dc, $cb, $a9, $87, $65
+ db $11, $00, $00, $08, $00, $13, $57, $9a, $b4, $ba, $a9, $98, $87, $65, $43, $21
+; e8e52
+
+NoiseSampleSetsPointers: ; e8e52
+ dw NoiseSampleSets0
+ dw NoiseSampleSets1
+ dw NoiseSampleSets2
+ dw NoiseSampleSets3
+ dw NoiseSampleSets4
+ dw NoiseSampleSets5
+; e8e5e
+
+NoiseSampleSets:
+NoiseSampleSets0: ; e8e5e
+ dw NoiseSampleSet00 ; rest
+ dw NoiseSampleSet01 ; c
+ dw NoiseSampleSet02 ; c#
+ dw NoiseSampleSet03 ; d
+ dw NoiseSampleSet04 ; d#
+ dw NoiseSampleSet05 ; e
+ dw NoiseSampleSet06 ; f
+ dw NoiseSampleSet07 ; f#
+ dw NoiseSampleSet08 ; g
+ dw NoiseSampleSet09 ; g#
+ dw NoiseSampleSet10 ; a
+ dw NoiseSampleSet11 ; a#
+ dw NoiseSampleSet12 ; b
+NoiseSampleSets1: ; e8e78
+ dw NoiseSampleSet00
+ dw NoiseSampleSet08
+ dw NoiseSampleSet09
+ dw NoiseSampleSet10
+ dw NoiseSampleSet11
+ dw NoiseSampleSet12
+ dw NoiseSampleSet13
+ dw NoiseSampleSet14
+ dw NoiseSampleSet15
+ dw NoiseSampleSet16
+ dw NoiseSampleSet17
+ dw NoiseSampleSet18
+ dw NoiseSampleSet19
+NoiseSampleSets2: ; e8e92
+ dw NoiseSampleSet00
+ dw NoiseSampleSet01
+ dw NoiseSampleSet17
+ dw NoiseSampleSet18
+ dw NoiseSampleSet19
+ dw NoiseSampleSet05
+ dw NoiseSampleSet06
+ dw NoiseSampleSet07
+ dw NoiseSampleSet08
+ dw NoiseSampleSet09
+ dw NoiseSampleSet10
+ dw NoiseSampleSet11
+ dw NoiseSampleSet12
+NoiseSampleSets3: ; e8eac
+ dw NoiseSampleSet21
+ dw NoiseSampleSet22
+ dw NoiseSampleSet23
+ dw NoiseSampleSet24
+ dw NoiseSampleSet25
+ dw NoiseSampleSet26
+ dw NoiseSampleSet20
+ dw NoiseSampleSet27
+ dw NoiseSampleSet28
+ dw NoiseSampleSet29
+ dw NoiseSampleSet21
+ dw NoiseSampleSet37
+ dw NoiseSampleSet34
+NoiseSampleSets4: ; e8ec6
+ dw NoiseSampleSet21
+ dw NoiseSampleSet20
+ dw NoiseSampleSet23
+ dw NoiseSampleSet24
+ dw NoiseSampleSet25
+ dw NoiseSampleSet33
+ dw NoiseSampleSet26
+ dw NoiseSampleSet35
+ dw NoiseSampleSet31
+ dw NoiseSampleSet32
+ dw NoiseSampleSet36
+ dw NoiseSampleSet37
+ dw NoiseSampleSet30
+NoiseSampleSets5: ; e8ee0
+ dw NoiseSampleSet00
+ dw NoiseSampleSet17
+ dw NoiseSampleSet18
+ dw NoiseSampleSet19
+ dw NoiseSampleSet27
+ dw NoiseSampleSet28
+ dw NoiseSampleSet29
+ dw NoiseSampleSet05
+ dw NoiseSampleSet06
+ dw NoiseSampleSet30
+ dw NoiseSampleSet24
+ dw NoiseSampleSet23
+ dw NoiseSampleSet37
+; e8efa
+
+NoiseSampleSet00: ; e8efa
+; unused
+ db $20, $11, $00
+ db $ff ; end
+; e8efe
+
+NoiseSampleSet01: ; e8efe
+ db $20, $c1, $33
+ db $ff ; end
+; e8f02
+
+NoiseSampleSet02: ; e8f02
+ db $20, $b1, $33
+ db $ff ; end
+; e8f06
+
+NoiseSampleSet03: ; e8f06
+ db $20, $a1, $33
+ db $ff ; end
+; e8f0a
+
+NoiseSampleSet04: ; e8f0a
+ db $20, $81, $33
+ db $ff ; end
+; e8f0e
+
+NoiseSampleSet05: ; e8f0e
+ db $27, $84, $37
+ db $26, $84, $36
+ db $25, $83, $35
+ db $24, $83, $34
+ db $23, $82, $33
+ db $22, $81, $32
+ db $ff ; end
+; e8f21
+
+NoiseSampleSet06: ; e8f21
+ db $20, $51, $2a
+ db $ff ; end
+; e8f25
+
+NoiseSampleSet07: ; e8f25
+ db $21, $41, $2b
+ db $20, $61, $2a
+ db $ff ; end
+; e8f2c
+
+NoiseSampleSet08: ; e8f2c
+ db $20, $81, $10
+ db $ff ; end
+; e8f30
+
+NoiseSampleSet09: ; e8f30
+ db $20, $82, $23
+ db $ff ; end
+; e8f34
+
+NoiseSampleSet10: ; e8f34
+ db $20, $82, $25
+ db $ff ; end
+; e8f38
+
+NoiseSampleSet11: ; e8f38
+ db $20, $82, $26
+ db $ff ; end
+; e8f3c
+
+NoiseSampleSet12: ; e8f3c
+ db $20, $a1, $10
+ db $ff ; end
+; e8f40
+
+NoiseSampleSet13: ; e8f40
+ db $20, $a2, $11
+ db $ff ; end
+; e8f44
+
+NoiseSampleSet14: ; e8f44
+ db $20, $a2, $50
+ db $ff ; end
+; e8f48
+
+NoiseSampleSet15: ; e8f48
+ db $20, $a1, $18
+ db $20, $31, $33
+ db $ff ; end
+; e8f4f
+
+NoiseSampleSet16: ; e8f4f
+ db $22, $91, $28
+ db $20, $71, $18
+ db $ff ; end
+; e8f56
+
+NoiseSampleSet17: ; e8f56
+ db $20, $91, $22
+ db $ff ; end
+; e8f5a
+
+NoiseSampleSet18: ; e8f5a
+ db $20, $71, $22
+ db $ff ; end
+; e8f5e
+
+NoiseSampleSet19: ; e8f5e
+ db $20, $61, $22
+ db $ff ; end
+; e8f62
+
+NoiseSampleSet20: ; e8f62
+ db $20, $11, $11
+ db $ff ; end
+; e8f66
+
+NoiseSampleSet21: ; e8f66
+ db $ff
+; e8f67
+
+NoiseSampleSet22: ; e8f67
+ db $20, $91, $33
+ db $ff ; end
+; e8f6b
+
+NoiseSampleSet23: ; e8f6b
+ db $20, $51, $32
+ db $ff ; end
+; e8f6f
+
+NoiseSampleSet24: ; e8f6f
+ db $20, $81, $31
+ db $ff ; end
+; e8f73
+
+NoiseSampleSet25: ; e8f73
+ db $20, $88, $6b
+ db $20, $71, $00
+ db $ff ; end
+; e8f7a
+
+NoiseSampleSet26: ; e8f7a
+ db $30, $91, $18
+ db $ff ; end
+; e8f7e
+
+NoiseSampleSet27: ; e8f7e
+ db $27, $92, $10
+ db $ff ; end
+; e8f82
+
+NoiseSampleSet28: ; e8f82
+ db $33, $91, $00
+ db $33, $11, $00
+ db $ff ; end
+; e8f89
+
+NoiseSampleSet29: ; e8f89
+ db $33, $91, $11
+ db $33, $11, $00
+ db $ff ; end
+; e8f90
+
+NoiseSampleSet30: ; e8f90
+ db $33, $88, $15
+ db $20, $65, $12
+ db $ff ; end
+; e8f97
+
+NoiseSampleSet31: ; e8f97
+ db $33, $51, $21
+ db $33, $11, $11
+ db $ff ; end
+; e8f9e
+
+NoiseSampleSet32: ; e8f9e
+ db $33, $51, $50
+ db $33, $11, $11
+ db $ff ; end
+; e8fa5
+
+NoiseSampleSet33: ; e8fa5
+ db $20, $a1, $31
+ db $ff ; end
+; e8fa9
+
+NoiseSampleSet34: ; e8fa9
+ db $20, $84, $12
+ db $ff ; end
+; e8fad
+
+NoiseSampleSet35: ; e8fad
+ db $33, $81, $00
+ db $33, $11, $00
+ db $ff ; end
+; e8fb4
+
+NoiseSampleSet36: ; e8fb4
+ db $33, $81, $21
+ db $33, $11, $11
+ db $ff ; end
+; e8fbb
+
+NoiseSampleSet37: ; e8fbb
+ db $20, $a8, $6b
+ db $20, $71, $00
+ db $ff ; end
+; e8fc2
+
GetLRTracks: ; e8fc2
; gets the default sound l/r channels
; stores mono/stereo table in hl
@@ -74679,15 +77333,14 @@
MonoTracks: ; e8fd1
; bit corresponds to track #
-; top nybble: right channel
-; bottom nybble: left channel
+; hi: left channel
+; lo: right channel
db $11, $22, $44, $88
; e8fd5
StereoTracks: ; e8fd5
-; seems to be wrong
-; figure out what this is actually for
-; might be default then clears one nybble based on song id
+; made redundant
+; seems to be modified on a per-song basis
db $11, $22, $44, $88
; e8fd9
@@ -74704,16 +77357,50 @@
dw Channel8
; e8fe9
-; identical in function to SoundRestart but cleaner
-INCBIN "baserom.gbc",$e8fe9,$e900a - $e8fe9
+ClearChannels: ; e8fe9
+; runs ClearChannel for all 4 channels
+; doesn't seem to be used, but functionally identical to SoundRestart
+ ld hl, $ff24
+ xor a
+ ld [hli], a
+ ld [hli], a
+ ld a, $80
+ ld [hli], a
+ ld hl, $ff10
+ ld e, $04
+.loop
+ call ClearChannel
+ dec e
+ jr nz, .loop
+ ret
+; e8ffe
+ClearChannel: ; e8ffe
+; input: hl = beginning hw sound register ($ff10, $ff15, $ff1a, $ff1f)
+; output: 00 00 80 00 80
+
+; sound channel 1 2 3 4
+ xor a
+ ld [hli], a ; $ff10, $ff15, $ff1a, $ff1f ; sweep = 0
+
+ ld [hli], a ; $ff11, $ff16, $ff1b, $ff20 ; length/wavepattern = 0
+ ld a, $08
+ ld [hli], a ; $ff12, $ff17, $ff1c, $ff21 ; envelope = 0
+ xor a
+ ld [hli], a ; $ff13, $ff18, $ff1d, $ff22 ; frequency lo = 0
+ ld a, $80
+ ld [hli], a ; $ff14, $ff19, $ff1e, $ff23 ; restart sound (freq hi = 0)
+ ret
+; e900a
+
PlayTrainerEncounterMusic: ; e900a
; input: e = trainer type
- ; turn music off for one frame
+ ; turn fade off
xor a
- ld [MusicLength], a ; $00 = infinite
+ ld [MusicFade], a
+ ; play nothing for one frame
push de
- ld de, $0000
+ ld de, $0000 ; id: Music_Nothing
call StartMusic
call DelayFrame
; play new song
@@ -74802,9 +77489,8 @@
; e906e
Music: ; e906e
-; bank, address
- dbw BANK(NoMusic), NoMusic
- dbw $3a, $7808
+ dbw BANK(Music_Nothing), Music_Nothing ; 0xe91a3
+ dbw BANK(Music_TitleScreen), Music_TitleScreen ; 0xeb808
dbw $3b, $4000
dbw $3b, $42ca
dbw $3b, $4506
@@ -74826,7 +77512,7 @@
dbw $3c, $45bf
dbw $3d, $4000
dbw $3d, $435b
- dbw $3a, $7eab
+ dbw BANK(Music_TrainerVictory), Music_TrainerVictory ; 0xebeab
dbw $3d, $4518
dbw $3d, $462c
dbw $3d, $4815
@@ -74849,23 +77535,23 @@
dbw $3b, $7c01
dbw $3b, $72d0
dbw $3c, $4000
- dbw $3a, $650d
- dbw $3a, $69c1
- dbw $3a, $574f
- dbw $3a, $5b6f
- dbw $3a, $6040
- dbw $3a, $62be
+ dbw BANK(Music_JohtoGymLeaderBattle), Music_JohtoGymLeaderBattle ; 0xea50d
+ dbw BANK(Music_ChampionBattle), Music_ChampionBattle ; 0xea9c1
+ dbw BANK(Music_RivalBattle), Music_RivalBattle ; 0xe974f
+ dbw BANK(Music_RocketBattle), Music_RocketBattle ; 0xe9b6f
+ dbw BANK(Music_ElmsLab), Music_ElmsLab ; 0xea040
+ dbw BANK(Music_DarkCave), Music_DarkCave ; 0x
dbw $3c, $4386
- dbw $3a, $54e9
- dbw $3a, $6d99
+ dbw BANK(Music_Route36), Music_Route36 ; 0xe94e9
+ dbw BANK(Music_SSAqua), Music_SSAqua ; 0xead99
dbw $3d, $66c3
dbw $3b, $6e3e
dbw $3d, $74a2
- dbw $3a, $7de1
+ dbw BANK(Music_LookPokemaniac), Music_LookPokemaniac ; 0xebde1
dbw $3b, $635e
- dbw $3a, $72d3
- dbw $3a, $7453
- dbw $3a, $7676
+ dbw BANK(Music_NewBarkTown), Music_NewBarkTown ; 0xeb2d3
+ dbw BANK(Music_GoldenrodCity), Music_GoldenrodCity ; 0xeb453
+ dbw BANK(Music_VermilionCity), Music_VermilionCity ; 0xeb676
dbw $3b, $645f
dbw $3d, $7b13
dbw $3d, $6811
@@ -74888,7 +77574,7 @@
dbw $3d, $7055
dbw $3d, $7308
dbw $3d, $78fd
- dbw $3a, $7d9e
+ dbw BANK(Music_RuinsOfAlphInterior), Music_RuinsOfAlphInterior ; 0xebd9e
dbw $3d, $766d
dbw $3b, $79bc
dbw $3b, $7b3e
@@ -74908,20 +77594,81 @@
dbw $5e, $561d
; e91a3
-NoMusic: ; e91a3
-; (nothing)
- dbw $c0, NoMusic_Ch0
- dbw $01, NoMusic_Ch1
- dbw $02, NoMusic_Ch2
- dbw $03, NoMusic_Ch3
-NoMusic_Ch0:
-NoMusic_Ch1:
-NoMusic_Ch2:
-NoMusic_Ch3: ; e91af
- db $ff ; end
-; e91b0
+Music_Nothing: ; 0xe91a3
+INCLUDE "music/nothing.asm"
+; 0xe91b0
-INCBIN "baserom.gbc",$e91b0,$e927c-$e91b0
+Cries: ; e91b0
+; 3-byte pointers
+ dbw $3c, $747d
+ dbw $3c, $7486
+ dbw $3c, $748f
+ dbw $3c, $7498
+ dbw $3c, $74a1
+ dbw $3c, $74aa
+ dbw $3c, $74b3
+ dbw $3c, $74bc
+ dbw $3c, $74c5
+ dbw $3c, $74ce
+ dbw $3c, $74d7
+ dbw $3c, $74e0
+ dbw $3c, $74e9
+ dbw $3c, $74f2
+ dbw $3c, $74fb
+ dbw $3c, $7504
+ dbw $3c, $750d
+ dbw $3c, $7516
+ dbw $3c, $751f
+ dbw $3c, $7528
+ dbw $3c, $7531
+ dbw $3c, $753a
+ dbw $3c, $7543
+ dbw $3c, $754c
+ dbw $3c, $7555
+ dbw $3c, $755e
+ dbw $3c, $7567
+ dbw $3c, $7570
+ dbw $3c, $7579
+ dbw $3c, $7582
+ dbw $3c, $758b
+ dbw $3c, $7594
+ dbw $3c, $759d
+ dbw $3c, $75a6
+ dbw $3c, $75af
+ dbw $3c, $75b8
+ dbw $3c, $75c1
+ dbw $3c, $75ca
+ dbw $3c, $6d81
+ dbw $3c, $6d96
+ dbw $3c, $6d8a
+ dbw $3c, $6dde
+ dbw $3c, $6d9f
+ dbw $3c, $6dc0
+ dbw $3c, $6d90
+ dbw $3c, $6da8
+ dbw $3c, $6db1
+ dbw $3c, $6db7
+ dbw $3c, $6dc6
+ dbw $3c, $6dcf
+ dbw $3c, $6e35
+ dbw $3c, $6dd8
+ dbw $3c, $6e3e
+ dbw $3c, $6de7
+ dbw $3c, $6ded
+ dbw $3c, $6e6b
+ dbw $3c, $6df6
+ dbw $3c, $6e74
+ dbw $3c, $6e08
+ dbw $3c, $6e11
+ dbw $3c, $6e1a
+ dbw $3c, $6e23
+ dbw $3c, $6e2c
+ dbw $3c, $6e62
+ dbw $3c, $6e47
+ dbw $3c, $6e50
+ dbw $3c, $6e59
+ dbw $3c, $6dff
+; e927c
SFX: ; e927c
dbw $3c, $4b3f ; dex fanfare 50-79
@@ -75133,7 +77880,64 @@
dbw $5e, $59cb ; twinkle
; e94e9
-INCBIN "baserom.gbc",$e94e9,$ebfc3 - $e94e9
+Music_Route36: ; 0xe94e9
+INCLUDE "music/route36.asm"
+; 0xe974f
+
+Music_RivalBattle: ; 0xe974f
+INCLUDE "music/rivalbattle.asm"
+; 0xe9b6f
+
+Music_RocketBattle: ; 0xe9b6f
+INCLUDE "music/rocketbattle.asm"
+; 0xea040
+
+Music_ElmsLab: ; 0xea040
+INCLUDE "music/elmslab.asm"
+; 0xea2be
+
+Music_DarkCave: ; 0xea2be
+INCLUDE "music/darkcave.asm"
+; 0xea50d
+
+Music_JohtoGymLeaderBattle: ; 0xea50d
+INCLUDE "music/johtogymleaderbattle.asm"
+; 0xea9c1
+
+Music_ChampionBattle: ; 0xea9c1
+INCLUDE "music/championbattle.asm"
+; 0xead99
+
+Music_SSAqua: ; 0xead99
+INCLUDE "music/ssaqua.asm"
+; 0xeb2d3
+
+Music_NewBarkTown: ; 0xeb2d3
+INCLUDE "music/newbarktown.asm"
+; 0xeb453
+
+Music_GoldenrodCity: ; 0xeb453
+INCLUDE "music/goldenrodcity.asm"
+; 0xeb676
+
+Music_VermilionCity: ; 0xeb676
+INCLUDE "music/vermilioncity.asm"
+; 0xeb808
+
+Music_TitleScreen: ; 0xeb808
+INCLUDE "music/titlescreen.asm"
+; 0xebd9e
+
+Music_RuinsOfAlphInterior: ; 0xebd9e
+INCLUDE "music/ruinsofalphinterior.asm"
+; 0xebde1
+
+Music_LookPokemaniac: ; 0xebde1
+INCLUDE "music/lookpokemaniac.asm"
+
+Music_TrainerVictory: ; 0xebeab
+INCLUDE "music/trainervictory.asm"
+; 0xebfc3
SECTION "bank3B",DATA,BANK[$3B]
--- /dev/null
+++ b/music/championbattle.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ea9c1,$ead99 - $ea9c1
\ No newline at end of file
--- /dev/null
+++ b/music/darkcave.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ea2be,$ea50d - $ea2be
\ No newline at end of file
--- /dev/null
+++ b/music/elmslab.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ea040,$ea2be - $ea040
\ No newline at end of file
--- /dev/null
+++ b/music/goldenrodcity.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$eb453,$eb676 - $eb453
\ No newline at end of file
--- /dev/null
+++ b/music/johtogymleaderbattle.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ea50d,$ea9c1 - $ea50d
\ No newline at end of file
--- /dev/null
+++ b/music/lookpokemaniac.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ebde1,$ebeab - $ebde1
\ No newline at end of file
--- /dev/null
+++ b/music/newbarktown.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$eb2d3,$eb453 - $eb2d3
\ No newline at end of file
--- /dev/null
+++ b/music/nothing.asm
@@ -1,0 +1,17 @@
+; 0xe91a3
+ db $c0
+ dw Music_Nothing_Ch1
+ db $01
+ dw Music_Nothing_Ch2
+ db $02
+ dw Music_Nothing_Ch3
+ db $03
+ dw Music_Nothing_Ch4
+; 0xe91af
+
+Music_Nothing_Ch1: ; 0xe91af
+Music_Nothing_Ch2: ; 0xe91af
+Music_Nothing_Ch3: ; 0xe91af
+Music_Nothing_Ch4: ; 0xe91af
+ endchannel ; end
+; 0xe91b0
--- /dev/null
+++ b/music/rivalbattle.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$e974f,$e9b6f - $e974f
\ No newline at end of file
--- /dev/null
+++ b/music/rocketbattle.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$e9b6f,$ea040 - $e9b6f
\ No newline at end of file
--- /dev/null
+++ b/music/route36.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$e94e9,$e974f - $e94e9
\ No newline at end of file
--- /dev/null
+++ b/music/ruinsofalphinterior.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ebd9e,$ebde1 - $ebd9e
\ No newline at end of file
--- /dev/null
+++ b/music/ssaqua.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ead99,$eb2d3 - $ead99
\ No newline at end of file
--- /dev/null
+++ b/music/titlescreen.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$eb808,$ebd9e - $eb808
\ No newline at end of file
--- /dev/null
+++ b/music/trainervictory.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$ebeab,$ebfc3 - $ebeab
\ No newline at end of file
--- /dev/null
+++ b/music/vermilioncity.asm
@@ -1,0 +1,1 @@
+INCBIN "baserom.gbc",$eb676,$eb808 - $eb676
\ No newline at end of file
--- a/wram.asm
+++ b/wram.asm
@@ -1,17 +1,7 @@
-SECTION "audio",BSS[$c101]
-; channel structure:
-; $00: music id lo
-; $01: music id hi
-;
-; $03: channel flags? bit 0 = on/off
-;
-; $06: address of music data
-;
-; $19: note length lo
-; $1a: note length hi
-; $1b: lr tracks (bit corresponds to track #)
-;
-; $2d: tempo
+SECTION "audio",BSS[$c100]
+MusicPlaying: ; c100
+; nonzero if playing
+ ds 1
Channels:
Channel1:
@@ -19,22 +9,158 @@
ds 2
Channel1MusicBank: ; c103
ds 1
-; $03 = channel flags?
+Channel1Flags: ; c104
+; 0: on/off
+; 1: subroutine
+; 2:
+; 3:
+; 4: noise sampling on/off
+; 5:
+; 6:
+; 7:
ds 1
-; note/octave????
- ds 2
+Channel1Flags2: ; c105
+; 0: vibrato on/off
+; 1:
+; 2: duty cycle on/off
+; 3:
+; 4:
+; 5:
+; 6:
+; 7:
+ ds 1
+Channel1Flags3: ; c106
+; 0: vibrato up/down
+; 1:
+; 2:
+; 3:
+; 4:
+; 5:
+; 6:
+; 7:
+ ds 1
Channel1MusicAddress: ; c107
ds 2
- ds 17
-Channel1NoteLength: ; c11a
+Channel1LastMusicAddress: ; c109
ds 2
-Channel1LR: ; c11c
+; could have been meant as a third-level address
+; unused? ; c10b
ds 1
- ds 17
-Channel1Tempo: ; c12e
+; unused? ; c10c
ds 1
- ds 4
+Channel1NoteFlags: ; c10d
+; 0:
+; 1:
+; 2:
+; 3:
+; 4:
+; 5: rest
+; 6:
+; 7:
+ ds 1
+Channel1Condition: ; c10e
+; used for conditional jumps
+ ds 1
+Channel1DutyCycle: ; c10f
+; uses top 2 bits only
+; 0: 12.5%
+; 1: 25%
+; 2: 50%
+; 3: 75%
+ ds 1
+Channel1Intensity: ; c110
+; hi: pressure
+; lo: velocity
+ ds 1
+Channel1Frequency:
+; 11 bits
+Channel1FrequencyLo: ; c111
+ ds 1
+Channel1FrequencyHi: ; c112
+ ds 1
+Channel1Pitch: ; c113
+; 0: rest
+; 1: C
+; 2: C#
+; 3: D
+; 4: D#
+; 5: E
+; 6: F
+; 7: F#
+; 8: G
+; 9: G#
+; a: A
+; b: A#
+; c: B
+ ds 1
+Channel1Octave: ; c114
+; 0: highest
+; 7: lowest
+ ds 1
+Channel1StartingOctave ; c115
+; raises existing octaves by this value
+; used for repeating phrases in a higher octave to save space
+ ds 1
+Channel1NoteDuration: ; c116
+; number of frames remaining in the current note
+ ds 1
+; c117
+ ds 1
+; c118
+ ds 1
+Channel1LoopCount ; c119
+ ds 1
+Channel1Tempo: ; c11a
+ ds 2
+Channel1Tracks: ; c11c
+; hi: l
+; lo: r
+ ds 1
+; c11d
+ ds 1
+Channel1VibratoDelayCount: ; c11e
+; initialized at the value in VibratoDelay
+; decrements each frame
+; at 0, vibrato starts
+ ds 1
+Channel1VibratoDelay: ; c11f
+; number of frames a note plays until vibrato starts
+ ds 1
+Channel1VibratoExtent: ; c120
+; difference in
+ ds 1
+Channel1VibratoRate: ; c121
+; counts down from a max of 15 frames
+; over which the pitch is alternated
+; hi: init frames
+; lo: frame count
+ ds 1
+
+; c122
+ ds 1
+; c123
+ ds 1
+; c124
+ ds 1
+; c125
+ ds 1
+; c126
+ ds 1
+ ds 7
+Channel1NoteLength: ; c12e
+; # frames per 16th note
+ ds 1
+; c12f
+ ds 1
+; c130
+ ds 1
+; c131
+ ds 1
+; c132
+ ds 1
+; end
+
Channel2: ; c133
ds 50
Channel3: ; c165
@@ -52,13 +178,25 @@
Channel8: ; c25f
ds 50
- ds 7
-
-MusicHeaderBuffer: ; c298
+; c291
ds 1
-CurMusicChannel: ; c299
+; c292
ds 1
+; c293
+ ds 1
+; c294
+ ds 1
+; c295
+ ds 1
+; c296
+ ds 1
+; c297
+ ds 1
+CurMusicByte: ; c298
+ ds 1
+CurChannel: ; c299
+ ds 1
Volume: ; c29a
; corresponds to $ff24
; Channel control / ON-OFF / Volume (R/W)
@@ -67,27 +205,69 @@
; bit 3 - Vin->SO1 ON/OFF
; bit 2-0 - SO1 output level (volume) (# 0-7)
ds 1
+SoundOutput: ; c29b
+; corresponds to $ff25
+; bit 4-7: ch1-4 so2 on/off
+; bit 0-3: ch1-4 so1 on/off
+ ds 1
+SoundInput: ; c29c
+; corresponds to $ff26
+; bit 7: global on/off
+; bit 0: ch1 on/off
+; bit 1: ch2 on/off
+; bit 2: ch3 on/off
+; bit 3: ch4 on/off
+ ds 1
- ds 2
-
MusicID:
MusicIDLo: ; c29d
ds 1
MusicIDHi: ; c29e
ds 1
-
MusicBank: ; c29f
ds 1
-
- ds 7
-
-MusicLength: ; c2a7
-; fades out when counter hits this value
-; $00 = infinite
+NoiseSampleAddress:
+NoiseSampleAddressLo: ; c2a0
ds 1
-
- ds 23
-
+NoiseSampleAddressHi: ; c2a1
+ ds 1
+; noise delay? ; c2a2
+ ds 1
+; c2a3
+ ds 1
+MusicNoiseSampleSet: ; c2a4
+ ds 1
+SFXNoiseSampleSet: ; c2a5
+ ds 1
+; c2a6
+ ds 1
+MusicFade: ; c2a7
+; fades volume over x frames
+; bit 7: fade in/out
+; bit 0-5: number of frames for each volume level
+; $00 = none (default)
+ ds 1
+MusicFadeCount: ; c2a8
+ ds 1
+MusicFadeID:
+MusicFadeIDLo: ; c2a9
+ ds 1
+MusicFadeIDHi: ; c2aa
+ ds 1
+ ds 9
+LastVolume: ; c2b4
+; preserves volume of a song playing so cries can have their own volume
+ ds 1
+ ds 1
+SFXPriority: ; c2b6
+; if nonzero, turn off music when playing sfx
+ ds 1
+ ds 6
+CryTracks ; c2bd
+; plays only in left or right track depending on what side the monster is on
+; both tracks active outside of battle
+ ds 1
+ ds 1
CurSFX: ; c2bf
; id of sfx currently playing
ds 1
--
⑨