FlashBack MSU1 Patch Source Code

arch snes.cpu

//Flashback MSU1 Patch for USA version.
//By Seru-kun/LuigiBlood
//226D8 = Music Table

macro seek n
  org {n} & 0x3fffff
  base {n}
endmacro

{seek $C2012B}

    jsl music1

{seek $C22349} //22349

    jsl music1

{seek $C22352}

    jsl music2

{seek $C2235C}

    jsl music2

{seek $c2016c}

    jsl music3

{seek $c22322}

    jsl music3

{seek $E00000} //200000

music1:
    pha
    php
    jsr msu1_check
    bne music1_normal
    lda $1eaf
    cmp #$03
    beq music1_normal
    jml music2_yes
    plp
    pla
    rtl
music1_normal:
    plp
    pla
    jml $D90101


music2:
    pha
    php
    jsr msu1_check
    bne music2_no
    bra music2_yes

music2_no:
    plp
    pla
    jml $d904fd

music2_yes:
    lda $c226d8,x
    and #$7f
    clc
    adc $1eaf
    sta $2004
    stz $2005
loop:
    lda $002000
    and #$40
    bne loop

    lda #$ff
    sta $2006
    lda $c226d8,x
    bmi music2_repeat
    lda #$01
    sta $2007
    plp
    pla
    rtl

music2_repeat:
    lda #$03
    sta $2007
    plp
    pla
    rtl

music3: //Stop
    pha
    phx
    php
    jsr msu1_check
    bne music3_no
    stz $2007
music3_no:
    plp
    plx
    pla
    jml $d94c16


msu1_check:
    sep #$20
    lda $2002
    cmp #$53 //'S'
    bne msu1_no
    lda $2003
    cmp #$2d //'-'
    bne msu1_no
    lda $2004
    cmp #$4d //'M'
    bne msu1_no
    lda $2005
    cmp #$53 //'S'
    bne msu1_no
    lda $2006
    cmp #$55 //'U'
    bne msu1_no
    lda $2007
    cmp #$31 //'1'
    bne msu1_no
    bra msu1_yes
msu1_no:
    lda #$01
    rts
msu1_yes:
    lda #$00
    rts

{seek $c226d6}
//c22756 - Cutscene Music Table
//Action Replay Codes:
//Cutscene Modifier: 00021D?? (?? = Cutscene Entry)
//
//Music Modifier: D904F9?? (?? = Music Entry)
//00 00 - Logo 0
//01 00 - Intro 1
//02 00 - Theme 2
//03 00 - Reunion 3
//03 01 - Memory 4
//03 02 - Wake Up 5
//03 03 - Jingle (Get Ready) 6
//03 04 - Jingle (Mission) 7
//03 05 - Jingle (Nearby) 8
//03 06 - Jingle (New Washington) 9
//03 07 - Item Fanfare 10
//03 08 - Ending + Credits 11
//03 09 - Fall 12
//03 0A - Desintegration 13
//Added Songs:
//03 0B - Give Item 14
//03 0C - Bridge 15
//03 0D - Anti-G Belt 16
//03 0E - Accepted Mission 17
//03 0F - Taxi 18
//03 10 - Holocube/Map 19
//03 11 - Recharge 20
//03 12 - Mission Theme 21
//03 13 - Game Over 22
//03 14 - Bad Ending 23
//03 15 - Diary 24
//03 16 - Lift 25
//03 17 - Voyage 26
//03 18 - Teleport to Morph Planet 27

MusicTable:
    dw $0001, $0000 //Intro Song    - Intro Cutscene
    dw $0003, $0000 //Reunion
    dw $0003, $0001 //Memory
    dw $0003, $0017 //Voyage
    dw $0003, $000D //To NW
    dw $0003, $0090 //Holocube      - Holocube Cutscene
    dw $0003, $0018 //Teleport
    dw $0002, $0000 //Theme Song    - Title Screen
    dw $0003, $0088 //Ending
    dw $0003, $000A //Desintegration
    dw $0003, $000C //Bridge
    dw $0003, $0011 //Recharge
    dw $FFFF, $FFFF
    dw $0003, $0002 //Wake Up       - Jungle Cutscene
    dw $0003, $000F //Taxi
    dw $0003, $0016 //Lift Up/Down
    dw $0003, $0007 //Item Fanfare
    dw $0003, $0095 //Diary
    dw $0003, $0092 // Mission stuff
    dw $0003, $0009 //FALL
    dw $0003, $0014 //Bad Ending
    dw $0003, $008E //Accepted Mission
    dw $0003, $000B //Give Item Fanfare
    dw $FFFF, $FFFF
    dw $0003, $0013 //Game Over
    dw $0000, $0000 //Logo          - Logo Cutscene
    dw $FFFF, $FFFF
    dw $FFFF, $FFFF
    dw $0003, $0003
    dw $0003, $0004
    dw $0003, $0005
    dw $0003, $0006

CutsceneMusicTable:
    db $0D //Wake Up
    db $10 //Take Holocube
    db $10 //Take Key
    db $FF
    db $10 //Take Gun
    db $0B //Recharging Shield
    db $13 //Fall to Death
    db $FF
    db $FF
    db $09 //Desintegrated
    db $10 //Take Credits
    db $FF
    db $FF
    db $00 //Intro
    db $0B //Recharging Battery $17
    db $10 //Take Battery
    db $10 //Take Teleporter
    db $05 //Holocube
    db $10 //Take ID
    db $FF
    db $0A //Bridge
    db $16 //Give Teleporter
    db $FF
    db $FF
    db $FF
    db $05 //Map
    db $05 //Map - Asia
    db $05 //Map - America
    db $05 //Map - Africa
    db $05 //Map - Europa
    db $FF
    db $FF
    db $10 //Take Parcel
    db $16 //Give Parcel
    db $10 //Take Work Permit
    db $10 //Take ID
    db $10 //Take Fuse
    db $12 //Mission 1 (Parcel)
    db $12 //Mission 2 (VIP)
    db $12 //Mission 2 (VIP) ???
    db $12 //Mission 3 (Maintenance)
    db $12 //Mission 4 (Cyborg Search)
    db $12 //Mission 5 (Clear Area 3)
    db $16 //Give ID
    db $16 //Give Credits
    db $15 //Accepting Mission
    db $FF
    db $04 //To New Washington
    db $02 //Memory
    db $10 //Take Anti-G Belt
    db $0E //Taxi
    db $FF
    db $03 //Won Death Tower
    db $06 //Going to Morph Planet
    db $0F //Lift Up
    db $0F //Lift Down
    db $FF
    db $01 //Reunion
    db $10 //Take Atomic Charge
    db $11 //Diary
    db $10 //Take Tele Reciever
    db $08 //Ending + Credits
    db $09 //Generator Explode $0C
    db $14 //Morph Planet Explode (Bad Ending)
    db $19 //Logo
    db $18 //Game Over
    db $12 //Mission Completed (100 credits)
    db $12 //Mission Completed (100 credits)
    db $12 //Mission Completed (300 credits)
    db $12 //Mission Completed (400 credits)
    db $12 //Mission Completed (500 credits)
    db $12 //Mission Completed (600 credits)
    db $FF
    db $FF