start decompiling sound_check_menu.c

6 files changed, 628 insertions, 689 deletions

diff --git a/asm/sound_check_menu.s b/asm/sound_check_menu.s
index b47229d2b..99b894c83 100644
--- a/asm/sound_check_menu.s
+++ b/asm/sound_check_menu.s
@@ -6,690 +6,6 @@
 
 	.text
 
-	thumb_func_start sub_80BA0A8
-sub_80BA0A8: @ 80BA0A8
-	push {lr}
-	bl RunTasks
-	bl AnimateSprites
-	bl BuildOamBuffer
-	bl UpdatePaletteFade
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80BA0A8
-
-	thumb_func_start sub_80BA0C0
-sub_80BA0C0: @ 80BA0C0
-	push {lr}
-	bl LoadOam
-	bl ProcessSpriteCopyRequests
-	bl TransferPlttBuffer
-	ldr r0, _080BA0E8 @ =gUnknown_020387B0
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _080BA0E2
-	bl m4aSoundMain
-	bl m4aSoundMain
-	bl m4aSoundMain
-_080BA0E2:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA0E8: .4byte gUnknown_020387B0
-	thumb_func_end sub_80BA0C0
-
-	thumb_func_start unref_sub_80BA0EC
-unref_sub_80BA0EC: @ 80BA0EC
-	push {r4-r6,lr}
-	sub sp, 0xC
-	movs r0, 0
-	bl SetVBlankCallback
-	movs r6, 0x80
-	lsls r6, 19
-	movs r5, 0
-	strh r5, [r6]
-	ldr r0, _080BA20C @ =REG_BG2CNT
-	strh r5, [r0]
-	subs r0, 0x2
-	strh r5, [r0]
-	subs r0, 0x2
-	strh r5, [r0]
-	adds r0, 0x10
-	strh r5, [r0]
-	adds r0, 0x2
-	strh r5, [r0]
-	subs r0, 0x6
-	strh r5, [r0]
-	adds r0, 0x2
-	strh r5, [r0]
-	subs r0, 0x6
-	strh r5, [r0]
-	adds r0, 0x2
-	strh r5, [r0]
-	add r0, sp, 0x4
-	strh r5, [r0]
-	ldr r1, _080BA210 @ =0x040000d4
-	str r0, [r1]
-	movs r0, 0xC0
-	lsls r0, 19
-	str r0, [r1, 0x4]
-	ldr r0, _080BA214 @ =0x8100c000
-	str r0, [r1, 0x8]
-	ldr r0, [r1, 0x8]
-	movs r4, 0
-	str r4, [sp, 0x8]
-	add r0, sp, 0x8
-	str r0, [r1]
-	movs r0, 0xE0
-	lsls r0, 19
-	str r0, [r1, 0x4]
-	ldr r0, _080BA218 @ =0x85000100
-	str r0, [r1, 0x8]
-	ldr r0, [r1, 0x8]
-	add r0, sp, 0x4
-	strh r4, [r0]
-	str r0, [r1]
-	movs r0, 0xA0
-	lsls r0, 19
-	str r0, [r1, 0x4]
-	ldr r0, _080BA21C @ =0x81000200
-	str r0, [r1, 0x8]
-	ldr r0, [r1, 0x8]
-	bl ResetPaletteFade
-	bl ResetTasks
-	bl ResetSpriteData
-	ldr r0, _080BA220 @ =gWindowConfig_81E6C3C
-	bl SetUpWindowConfig
-	ldr r0, _080BA224 @ =gWindowConfig_81E6CE4
-	bl InitMenuWindow
-	movs r0, 0x1
-	negs r0, r0
-	str r4, [sp]
-	movs r1, 0
-	movs r2, 0x10
-	movs r3, 0
-	bl BeginNormalPaletteFade
-	ldr r0, _080BA228 @ =REG_WIN0H
-	strh r4, [r0]
-	adds r0, 0x4
-	strh r4, [r0]
-	subs r0, 0x2
-	strh r4, [r0]
-	adds r0, 0x4
-	strh r4, [r0]
-	ldr r1, _080BA22C @ =REG_WININ
-	ldr r2, _080BA230 @ =0x00001111
-	adds r0, r2, 0
-	strh r0, [r1]
-	adds r1, 0x2
-	movs r0, 0x31
-	strh r0, [r1]
-	adds r1, 0x6
-	movs r0, 0xE1
-	strh r0, [r1]
-	ldr r0, _080BA234 @ =REG_BLDALPHA
-	strh r4, [r0]
-	adds r1, 0x4
-	movs r0, 0x7
-	strh r0, [r1]
-	ldr r1, _080BA238 @ =0x04000200
-	movs r2, 0x1
-	strh r2, [r1]
-	ldrh r0, [r1]
-	orrs r0, r2
-	strh r0, [r1]
-	ldr r2, _080BA23C @ =REG_DISPSTAT
-	ldrh r0, [r2]
-	movs r1, 0x8
-	orrs r0, r1
-	strh r0, [r2]
-	ldr r0, _080BA240 @ =sub_80BA0C0
-	bl SetVBlankCallback
-	ldr r0, _080BA244 @ =sub_80BA0A8
-	bl SetMainCallback2
-	ldr r1, _080BA248 @ =0x00007140
-	adds r0, r1, 0
-	strh r0, [r6]
-	ldr r0, _080BA24C @ =sub_80BA258
-	movs r1, 0
-	bl CreateTask
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, _080BA250 @ =gTasks
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	adds r1, r2
-	strh r4, [r1, 0x8]
-	strh r4, [r1, 0xA]
-	strh r4, [r1, 0xC]
-	strh r4, [r1, 0xE]
-	ldr r0, _080BA254 @ =gUnknown_020387B0
-	strb r5, [r0]
-	strh r4, [r1, 0xE]
-	bl m4aSoundInit
-	add sp, 0xC
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA20C: .4byte REG_BG2CNT
-_080BA210: .4byte 0x040000d4
-_080BA214: .4byte 0x8100c000
-_080BA218: .4byte 0x85000100
-_080BA21C: .4byte 0x81000200
-_080BA220: .4byte gWindowConfig_81E6C3C
-_080BA224: .4byte gWindowConfig_81E6CE4
-_080BA228: .4byte REG_WIN0H
-_080BA22C: .4byte REG_WININ
-_080BA230: .4byte 0x00001111
-_080BA234: .4byte REG_BLDALPHA
-_080BA238: .4byte 0x04000200
-_080BA23C: .4byte REG_DISPSTAT
-_080BA240: .4byte sub_80BA0C0
-_080BA244: .4byte sub_80BA0A8
-_080BA248: .4byte 0x00007140
-_080BA24C: .4byte sub_80BA258
-_080BA250: .4byte gTasks
-_080BA254: .4byte gUnknown_020387B0
-	thumb_func_end unref_sub_80BA0EC
-
-	thumb_func_start sub_80BA258
-sub_80BA258: @ 80BA258
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	sub sp, 0x40
-	lsls r0, 24
-	lsrs r0, 24
-	mov r9, r0
-	ldr r1, _080BA354 @ =gDebugText_SoundCheckJap
-	mov r0, sp
-	movs r2, 0x9
-	bl memcpy
-	add r7, sp, 0xC
-	ldr r1, _080BA358 @ =gDebugText_BGM
-	adds r0, r7, 0
-	movs r2, 0x4
-	bl memcpy
-	add r0, sp, 0x10
-	mov r8, r0
-	ldr r1, _080BA35C @ =gDebugText_SE
-	movs r2, 0x4
-	bl memcpy
-	add r5, sp, 0x14
-	ldr r1, _080BA360 @ =gUnknown_083D02D9
-	adds r0, r5, 0
-	movs r2, 0xD
-	bl memcpy
-	add r4, sp, 0x24
-	ldr r1, _080BA364 @ =gDebugText_UpDown
-	adds r0, r4, 0
-	movs r2, 0xC
-	bl memcpy
-	add r6, sp, 0x30
-	ldr r1, _080BA368 @ =gDebugText_DriverTest
-	adds r0, r6, 0
-	movs r2, 0xE
-	bl memcpy
-	ldr r0, _080BA36C @ =gPaletteFade
-	ldrb r1, [r0, 0x7]
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	bne _080BA344
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0x1B
-	movs r3, 0x3
-	bl MenuDrawTextWindow
-	movs r0, 0x2
-	movs r1, 0x5
-	movs r2, 0x1B
-	movs r3, 0xA
-	bl MenuDrawTextWindow
-	movs r0, 0x2
-	movs r1, 0xC
-	movs r2, 0x1B
-	movs r3, 0x11
-	bl MenuDrawTextWindow
-	mov r0, sp
-	movs r1, 0x4
-	movs r2, 0x1
-	bl MenuPrint
-	adds r0, r5, 0
-	movs r1, 0xE
-	movs r2, 0x1
-	bl MenuPrint
-	adds r0, r7, 0
-	movs r1, 0x4
-	movs r2, 0x6
-	bl MenuPrint
-	adds r0, r4, 0
-	movs r1, 0xE
-	movs r2, 0x6
-	bl MenuPrint
-	mov r0, r8
-	movs r1, 0x4
-	movs r2, 0xD
-	bl MenuPrint
-	adds r0, r4, 0
-	movs r1, 0xE
-	movs r2, 0xD
-	bl MenuPrint
-	adds r0, r6, 0
-	movs r1, 0xE
-	movs r2, 0x12
-	bl MenuPrint
-	ldr r1, _080BA370 @ =gTasks
-	mov r2, r9
-	lsls r0, r2, 2
-	add r0, r9
-	lsls r0, 3
-	adds r0, r1
-	ldr r1, _080BA374 @ =sub_80BA384
-	str r1, [r0]
-	ldr r1, _080BA378 @ =REG_WIN0H
-	ldr r2, _080BA37C @ =0x000011df
-	adds r0, r2, 0
-	strh r0, [r1]
-	adds r1, 0x4
-	ldr r2, _080BA380 @ =0x0000011f
-	adds r0, r2, 0
-	strh r0, [r1]
-_080BA344:
-	add sp, 0x40
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA354: .4byte gDebugText_SoundCheckJap
-_080BA358: .4byte gDebugText_BGM
-_080BA35C: .4byte gDebugText_SE
-_080BA360: .4byte gUnknown_083D02D9
-_080BA364: .4byte gDebugText_UpDown
-_080BA368: .4byte gDebugText_DriverTest
-_080BA36C: .4byte gPaletteFade
-_080BA370: .4byte gTasks
-_080BA374: .4byte sub_80BA384
-_080BA378: .4byte REG_WIN0H
-_080BA37C: .4byte 0x000011df
-_080BA380: .4byte 0x0000011f
-	thumb_func_end sub_80BA258
-
-	thumb_func_start sub_80BA384
-sub_80BA384: @ 80BA384
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, _080BA3EC @ =gTasks
-	lsls r4, r0, 2
-	adds r4, r0
-	lsls r4, 3
-	adds r4, r1
-	ldrb r0, [r4, 0x8]
-	bl sub_80BA6B8
-	ldr r1, _080BA3F0 @ =0x0000015d
-	adds r0, r1, 0
-	ldrh r2, [r4, 0xA]
-	adds r0, r2
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x7
-	movs r2, 0x8
-	bl sub_80BA700
-	ldr r1, _080BA3F4 @ =gBGMNames
-	movs r2, 0xA
-	ldrsh r0, [r4, r2]
-	lsls r0, 2
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0xB
-	movs r2, 0x8
-	bl sub_80BA79C
-	ldrh r0, [r4, 0xC]
-	movs r1, 0x7
-	movs r2, 0xF
-	bl sub_80BA700
-	ldr r1, _080BA3F8 @ =gSENames
-	movs r2, 0xC
-	ldrsh r0, [r4, r2]
-	lsls r0, 2
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0xB
-	movs r2, 0xF
-	bl sub_80BA79C
-	ldr r0, _080BA3FC @ =sub_80BA65C
-	str r0, [r4]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA3EC: .4byte gTasks
-_080BA3F0: .4byte 0x0000015d
-_080BA3F4: .4byte gBGMNames
-_080BA3F8: .4byte gSENames
-_080BA3FC: .4byte sub_80BA65C
-	thumb_func_end sub_80BA384
-
-	thumb_func_start sub_80BA400
-sub_80BA400: @ 80BA400
-	push {r4-r6,lr}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldr r2, _080BA428 @ =gMain
-	ldrh r1, [r2, 0x2E]
-	movs r0, 0x80
-	lsls r0, 1
-	ands r0, r1
-	cmp r0, 0
-	beq _080BA434
-	ldr r0, _080BA42C @ =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r1, r0
-	ldr r0, _080BA430 @ =sub_80BA800
-	str r0, [r1]
-	b _080BA64C
-	.align 2, 0
-_080BA428: .4byte gMain
-_080BA42C: .4byte gTasks
-_080BA430: .4byte sub_80BA800
-_080BA434:
-	movs r0, 0x80
-	lsls r0, 2
-	ands r0, r1
-	cmp r0, 0
-	beq _080BA458
-	ldr r0, _080BA450 @ =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r1, r0
-	ldr r0, _080BA454 @ =sub_80BAF84
-	str r0, [r1]
-	b _080BA64C
-	.align 2, 0
-_080BA450: .4byte gTasks
-_080BA454: .4byte sub_80BAF84
-_080BA458:
-	movs r0, 0x8
-	ands r0, r1
-	cmp r0, 0
-	beq _080BA478
-	ldr r0, _080BA470 @ =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r1, r0
-	ldr r0, _080BA474 @ =sub_80BB25C
-	str r0, [r1]
-	b _080BA64C
-	.align 2, 0
-_080BA470: .4byte gTasks
-_080BA474: .4byte sub_80BB25C
-_080BA478:
-	movs r6, 0x1
-	movs r5, 0x1
-	ands r5, r1
-	cmp r5, 0
-	beq _080BA538
-	ldr r0, _080BA4AC @ =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r5, r1, r0
-	movs r1, 0x8
-	ldrsh r0, [r5, r1]
-	cmp r0, 0
-	beq _080BA4D0
-	movs r2, 0x10
-	ldrsh r0, [r5, r2]
-	cmp r0, 0
-	beq _080BA4BA
-	movs r3, 0xC
-	ldrsh r4, [r5, r3]
-	cmp r4, 0
-	beq _080BA4B0
-	ldrh r0, [r5, 0x10]
-	bl m4aSongNumStop
-	b _080BA4C4
-	.align 2, 0
-_080BA4AC: .4byte gTasks
-_080BA4B0:
-	ldrh r0, [r5, 0x10]
-	bl m4aSongNumStop
-	strh r4, [r5, 0x10]
-	b _080BA64C
-_080BA4BA:
-	movs r4, 0xC
-	ldrsh r0, [r5, r4]
-	cmp r0, 0
-	bne _080BA4C4
-	b _080BA64C
-_080BA4C4:
-	ldrh r0, [r5, 0xC]
-	bl m4aSongNumStart
-	ldrh r0, [r5, 0xC]
-	strh r0, [r5, 0x10]
-	b _080BA64C
-_080BA4D0:
-	ldrh r1, [r5, 0xE]
-	movs r2, 0xE
-	ldrsh r0, [r5, r2]
-	cmp r0, 0
-	beq _080BA514
-	movs r3, 0xA
-	ldrsh r4, [r5, r3]
-	cmp r4, 0
-	beq _080BA500
-	ldr r0, _080BA4FC @ =0x0000015d
-	adds r4, r0, 0
-	adds r0, r1, r4
-	lsls r0, 16
-	lsrs r0, 16
-	bl m4aSongNumStop
-	ldrh r1, [r5, 0xA]
-	adds r4, r1
-	lsls r4, 16
-	lsrs r4, 16
-	adds r0, r4, 0
-	b _080BA528
-	.align 2, 0
-_080BA4FC: .4byte 0x0000015d
-_080BA500:
-	ldr r2, _080BA510 @ =0x0000015d
-	adds r0, r1, r2
-	lsls r0, 16
-	lsrs r0, 16
-	bl m4aSongNumStop
-	strh r4, [r5, 0xE]
-	b _080BA64C
-	.align 2, 0
-_080BA510: .4byte 0x0000015d
-_080BA514:
-	ldrh r1, [r5, 0xA]
-	movs r3, 0xA
-	ldrsh r0, [r5, r3]
-	cmp r0, 0
-	bne _080BA520
-	b _080BA64C
-_080BA520:
-	ldr r4, _080BA534 @ =0x0000015d
-	adds r0, r1, r4
-	lsls r0, 16
-	lsrs r0, 16
-_080BA528:
-	bl m4aSongNumStart
-	ldrh r0, [r5, 0xA]
-	strh r0, [r5, 0xE]
-	b _080BA64C
-	.align 2, 0
-_080BA534: .4byte 0x0000015d
-_080BA538:
-	movs r0, 0x2
-	ands r0, r1
-	cmp r0, 0
-	beq _080BA570
-	movs r0, 0x5
-	bl m4aSongNumStart
-	movs r0, 0x1
-	negs r0, r0
-	str r5, [sp]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0x10
-	bl BeginNormalPaletteFade
-	ldr r1, _080BA568 @ =gTasks
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 3
-	adds r0, r1
-	ldr r1, _080BA56C @ =sub_80BA68C
-	str r1, [r0]
-	b _080BA64C
-	.align 2, 0
-_080BA568: .4byte gTasks
-_080BA56C: .4byte sub_80BA68C
-_080BA570:
-	ldrh r1, [r2, 0x30]
-	movs r0, 0x40
-	ands r0, r1
-	cmp r0, 0
-	bne _080BA582
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	beq _080BA59C
-_080BA582:
-	ldr r0, _080BA598 @ =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r1, r0
-	ldrh r0, [r1, 0x8]
-	eors r0, r6
-	strh r0, [r1, 0x8]
-_080BA592:
-	movs r0, 0x1
-	b _080BA64E
-	.align 2, 0
-_080BA598: .4byte gTasks
-_080BA59C:
-	movs r0, 0x10
-	ands r0, r1
-	lsls r0, 16
-	lsrs r3, r0, 16
-	cmp r3, 0
-	beq _080BA5EA
-	ldr r0, _080BA5CC @ =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r1, r0
-	movs r2, 0x8
-	ldrsh r0, [r1, r2]
-	cmp r0, 0
-	beq _080BA5D6
-	ldrh r2, [r1, 0xC]
-	movs r3, 0xC
-	ldrsh r0, [r1, r3]
-	cmp r0, 0
-	ble _080BA5D0
-	subs r0, r2, 0x1
-	strh r0, [r1, 0xC]
-	b _080BA592
-	.align 2, 0
-_080BA5CC: .4byte gTasks
-_080BA5D0:
-	movs r0, 0xF7
-	strh r0, [r1, 0xC]
-	b _080BA592
-_080BA5D6:
-	ldrh r2, [r1, 0xA]
-	movs r4, 0xA
-	ldrsh r0, [r1, r4]
-	cmp r0, 0
-	ble _080BA5E4
-	subs r0, r2, 0x1
-	b _080BA5E6
-_080BA5E4:
-	movs r0, 0x75
-_080BA5E6:
-	strh r0, [r1, 0xA]
-	b _080BA592
-_080BA5EA:
-	movs r0, 0x20
-	ands r0, r1
-	cmp r0, 0
-	beq _080BA630
-	ldr r1, _080BA614 @ =gTasks
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 3
-	adds r1, r0, r1
-	movs r0, 0x8
-	ldrsh r2, [r1, r0]
-	cmp r2, 0
-	beq _080BA61C
-	ldrh r2, [r1, 0xC]
-	movs r4, 0xC
-	ldrsh r0, [r1, r4]
-	cmp r0, 0xF6
-	bgt _080BA618
-	adds r0, r2, 0x1
-	strh r0, [r1, 0xC]
-	b _080BA592
-	.align 2, 0
-_080BA614: .4byte gTasks
-_080BA618:
-	strh r3, [r1, 0xC]
-	b _080BA592
-_080BA61C:
-	ldrh r3, [r1, 0xA]
-	movs r4, 0xA
-	ldrsh r0, [r1, r4]
-	cmp r0, 0x74
-	bgt _080BA62C
-	adds r0, r3, 0x1
-	strh r0, [r1, 0xA]
-	b _080BA592
-_080BA62C:
-	strh r2, [r1, 0xA]
-	b _080BA592
-_080BA630:
-	ldrh r1, [r2, 0x2C]
-	movs r0, 0x4
-	ands r0, r1
-	lsls r0, 16
-	lsrs r1, r0, 16
-	cmp r1, 0
-	beq _080BA648
-	ldr r0, _080BA644 @ =gUnknown_020387B0
-	strb r6, [r0]
-	b _080BA64C
-	.align 2, 0
-_080BA644: .4byte gUnknown_020387B0
-_080BA648:
-	ldr r0, _080BA658 @ =gUnknown_020387B0
-	strb r1, [r0]
-_080BA64C:
-	movs r0, 0
-_080BA64E:
-	add sp, 0x4
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080BA658: .4byte gUnknown_020387B0
-	thumb_func_end sub_80BA400
-
 	thumb_func_start sub_80BA65C
 sub_80BA65C: @ 80BA65C
 	push {r4,lr}
diff --git a/data/sound_check_menu.s b/data/sound_check_menu.s
index a91f55d04..6e4702ae3 100644
--- a/data/sound_check_menu.s
+++ b/data/sound_check_menu.s
@@ -14,7 +14,7 @@ gDebugText_BGM:: @ 83D02D1
 gDebugText_SE:: @ 83D02D5
 	.string "SE $"
 
-gUnknown_083D02D9:: @ 83D02D9
+gDebugText_ABDesc:: @ 83D02D9
 	.string "A‥さいせい　B‥おわり$"
 
 gDebugText_UpDown:: @ 83D02E6
diff --git a/include/player_pc.h b/include/player_pc.h
index f2446ebdf..8debeda88 100755
--- a/include/player_pc.h
+++ b/include/player_pc.h
@@ -1,10 +1,6 @@
 #ifndef GUARD_PLAYER_PC_H
 #define GUARD_PLAYER_PC_H
 
-// general task defines
-#define TASK gTasks[taskId]
-#define FUNC func
-
 // local task defines
 #define PAGE_INDEX data[0]
 #define ITEMS_ABOVE_TOP data[1]
diff --git a/include/task.h b/include/task.h
index 6c6efdf4f..a71577ee3 100644
--- a/include/task.h
+++ b/include/task.h
@@ -1,6 +1,10 @@
 #ifndef GUARD_TASK_H
 #define GUARD_TASK_H
 
+// general task defines
+#define TASK gTasks[taskId]
+#define FUNC func
+
 typedef void (*TaskFunc)(u8 taskId);
 
 struct Task
diff --git a/ld_script.txt b/ld_script.txt
index 281f1781d..523c35a85 100755
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -166,6 +166,7 @@ SECTIONS {
         asm/contest_effect.o(.text);
         src/record_mixing.o(.text);
         asm/record_mixing.o(.text);
+        src/sound_check_menu.o(.text);
         asm/sound_check_menu.o(.text);
         src/secret_base.o(.text);
         asm/secret_base.o(.text_80BC1D0);
diff --git a/src/sound_check_menu.c b/src/sound_check_menu.c
new file mode 100755
index 000000000..75cf48798
--- /dev/null
+++ b/src/sound_check_menu.c
@@ -0,0 +1,622 @@
+#include "global.h"
+#include "sprite.h"
+#include "palette.h"
+#include "task.h"
+#include "m4a.h"
+#include "main.h"
+#include "text.h"
+#include "menu.h"
+#include "songs.h"
+
+// local task defines
+#define UNK_DATA0 data[0]
+#define BGM_INDEX data[1]
+#define SE_INDEX data[2]
+#define UNK_DATA3 data[3]
+
+extern void sub_80BA6B8(u8);
+extern void sub_80BA700(u16, u8, u8);
+extern void sub_80BA79C(u8 *, u8, u8);
+extern void sub_80BA65C(u8);
+extern void sub_80BA800(u8);
+extern void sub_80BAF84(u8);
+extern void sub_80BB25C(u8);
+extern void sub_80BA68C(u8);
+
+extern u8 gUnknown_020387B0;
+
+extern u8 *gBGMNames[];
+extern u8 *gSENames[];
+
+extern u8 gDebugText_SoundCheckJap[];
+extern u8 gDebugText_BGM[];
+extern u8 gDebugText_SE[];
+extern u8 gDebugText_ABDesc[];
+extern u8 gDebugText_UpDown[];
+extern u8 gDebugText_DriverTest[];
+
+void sub_80BA258(u8);
+void sub_80BA384(u8);
+
+void sub_80BA0A8(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    UpdatePaletteFade();
+}
+
+void sub_80BA0C0(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+
+    if(gUnknown_020387B0 != 0)
+    {
+        m4aSoundMain();
+        m4aSoundMain();
+        m4aSoundMain();
+    }
+}
+
+// unused
+void CB2_StartSoundCheckMenu(void)
+{
+    u8 taskId;
+
+    SetVBlankCallback(NULL);
+    REG_DISPCNT = 0;
+    REG_BG2CNT = 0;
+    REG_BG1CNT = 0;
+    REG_BG0CNT = 0;
+    REG_BG2HOFS = 0;
+    REG_BG2VOFS = 0;
+    REG_BG1HOFS = 0;
+    REG_BG1VOFS = 0;
+    REG_BG0HOFS = 0;
+    REG_BG0VOFS = 0;
+    DmaFill16(3, 0, VRAM, VRAM_SIZE);
+    DmaFill32(3, 0, OAM, OAM_SIZE);
+    DmaFill16(3, 0, PLTT, PLTT_SIZE);
+    ResetPaletteFade();
+    ResetTasks();
+    ResetSpriteData();
+    SetUpWindowConfig(&gWindowConfig_81E6C3C);
+    InitMenuWindow(&gWindowConfig_81E6CE4);
+    BeginNormalPaletteFade(0xFFFFFFFF, 0, 16, 0, 0);
+    REG_WIN0H = 0;
+    REG_WIN0V = 0;
+    REG_WIN1H = 0;
+    REG_WIN1V = 0;
+    REG_WININ = 0x1111;
+    REG_WINOUT = 0x31;
+    REG_BLDCNT = 0xE1;
+    REG_BLDALPHA = 0;
+    REG_BLDY = 7;
+    REG_IE = 1; // could be a typo of REG_IME
+    REG_IE |= 1;
+    REG_DISPSTAT |= 8;
+    SetVBlankCallback(sub_80BA0C0);
+    SetMainCallback2(sub_80BA0A8);
+    REG_DISPCNT = 0x7140;
+    taskId = CreateTask(sub_80BA258, 0);
+    TASK.UNK_DATA0 = 0;
+    TASK.BGM_INDEX = 0;
+    TASK.SE_INDEX = 0;
+    TASK.UNK_DATA3 = 0;
+    gUnknown_020387B0 = 0;
+    TASK.UNK_DATA3 = 0; // why?
+    m4aSoundInit();
+}
+
+// Task_InitSoundCheckMenu
+void sub_80BA258(u8 taskId)
+{
+    u8 soundcheckStr[9];
+    u8 bgmStr[4];
+    u8 seStr[4];
+    u8 abDescStr[13];
+    u8 upDownStr[12];
+    u8 driverStr[14];
+
+    // these probably used size of the strings themselves, but they are not in the C file yet.
+    memcpy(soundcheckStr, gDebugText_SoundCheckJap, sizeof soundcheckStr);
+    memcpy(bgmStr, gDebugText_BGM, sizeof bgmStr);
+    memcpy(seStr, gDebugText_SE, sizeof seStr);
+    memcpy(abDescStr, gDebugText_ABDesc, sizeof abDescStr);
+    memcpy(upDownStr, gDebugText_UpDown, sizeof upDownStr);
+    memcpy(driverStr, gDebugText_DriverTest, sizeof driverStr);
+
+    if(!gPaletteFade.active)
+    {
+        MenuDrawTextWindow(0x2, 0, 0x1B, 0x3);
+        MenuDrawTextWindow(0x2, 0x5, 0x1B, 0xA);
+        MenuDrawTextWindow(0x2, 0xC, 0x1B, 0x11);
+        MenuPrint(soundcheckStr, 4, 1);
+        MenuPrint(abDescStr, 14, 1);
+        MenuPrint(bgmStr, 4, 6);
+        MenuPrint(upDownStr, 14, 6);
+        MenuPrint(seStr, 4, 13);
+        MenuPrint(upDownStr, 14, 13);
+        MenuPrint(driverStr, 14, 18);
+        TASK.FUNC = sub_80BA384;
+        REG_WIN0H = 0x11DF;
+        REG_WIN0V = 0x11F; 
+    }
+}
+
+void sub_80BA384(u8 taskId)
+{
+    sub_80BA6B8(TASK.UNK_DATA0);
+    sub_80BA700(TASK.BGM_INDEX + BGM_STOP, 7, 8); // print by BGM index
+    sub_80BA79C(gBGMNames[TASK.BGM_INDEX], 11, 8);
+    sub_80BA700(TASK.SE_INDEX, 7, 15);
+    sub_80BA79C(gSENames[TASK.SE_INDEX], 11, 15);
+    TASK.FUNC = sub_80BA65C;
+}
+
+#ifdef NONMATCHING
+bool8 sub_80BA400(u8 taskId)
+{
+    if(gMain.newKeys & R_BUTTON) // driver test
+    {
+        gTasks[taskId].func = sub_80BA800;
+        return FALSE;
+    }
+    if(gMain.newKeys & L_BUTTON)
+    {
+        gTasks[taskId].func = sub_80BAF84;
+        return FALSE;
+    }
+    if(gMain.newKeys & START_BUTTON)
+    {
+        gTasks[taskId].func = sub_80BB25C;
+        return FALSE;
+    }
+    if(gMain.newKeys & A_BUTTON) // both these cases insist on non reuses of certain data variables and cause the function to not match.
+    {
+        if(gTasks[taskId].data[0] != 0) // is playing?
+        {
+            if(gTasks[taskId].data[4] != 0)
+            {
+                if(gTasks[taskId].data[2] != 0) // why are you insiting on a non signed halfword?
+                {
+                    m4aSongNumStop(gTasks[taskId].data[4]);
+                }
+                else
+                {
+                    m4aSongNumStop(gTasks[taskId].data[2]);
+                    gTasks[taskId].data[4] = gTasks[taskId].data[2];
+                    return FALSE;
+                }
+            }
+            else if(gTasks[taskId].data[2] == 0) // _080BA4BA
+            {
+                return FALSE;
+            }
+            // _080BA4C4
+            m4aSongNumStart(gTasks[taskId].data[2]);
+            gTasks[taskId].data[4] = gTasks[taskId].data[2];
+        }
+        else // _080BA4D0
+        {
+            if(gTasks[taskId].data[3] != 0)
+            {
+                if(gTasks[taskId].data[1] != 0)
+                {
+                    m4aSongNumStop(gTasks[taskId].data[3] + BGM_STOP);
+                }
+                else // _080BA500
+                {
+                    m4aSongNumStop(gTasks[taskId].data[3] + BGM_STOP);
+                    gTasks[taskId].data[3] = gTasks[taskId].data[1];
+                    return FALSE;
+                }
+            }
+            else if(gTasks[taskId].data[1] == 0) // _080BA514
+                return FALSE;
+
+            m4aSongNumStart(gTasks[taskId].data[1] + BGM_STOP);
+            gTasks[taskId].data[3] = gTasks[taskId].data[1];
+        }
+        return FALSE;
+    }
+    if(gMain.newKeys & B_BUTTON)
+    {
+        m4aSongNumStart(5);
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 0, 16, 0);
+        gTasks[taskId].func = sub_80BA68C;
+        return FALSE;
+    }
+    if(gMain.newAndRepeatedKeys & DPAD_UP)
+    {
+        gTasks[taskId].data[8] ^= A_BUTTON; // huh?
+        return TRUE;
+    }
+    if(gMain.newAndRepeatedKeys & DPAD_DOWN)
+    {
+        gTasks[taskId].data[8] ^= A_BUTTON; // huh?
+        return TRUE;
+    }
+    else
+    {
+    u16 keys = gMain.newAndRepeatedKeys & DPAD_RIGHT;
+    if(keys)
+    {
+        if(gTasks[taskId].data[0] != 0)
+        {
+            if(gTasks[taskId].data[2] > 0)
+            {
+                gTasks[taskId].data[2]--;
+            }
+            else
+            {
+                gTasks[taskId].data[2] = 0xF7;
+            }
+        }
+        else if(gTasks[taskId].data[1] > 0)
+        {
+            gTasks[taskId].data[1]--;
+        }
+        else
+        {
+            gTasks[taskId].data[1] = 0x75;
+        }
+        return TRUE;
+    }
+    if(gMain.newAndRepeatedKeys & DPAD_LEFT)
+    {
+        if(gTasks[taskId].data[0] != 0)
+        {
+            if(gTasks[taskId].data[2] < 0xF7)
+            {
+                gTasks[taskId].data[2]++;
+            }
+            else
+            {
+                gTasks[taskId].data[2] = keys; // ??
+            }
+        }
+        else if(gTasks[taskId].data[1] < 0x75)
+        {
+            gTasks[taskId].data[1]++;
+            return TRUE;
+        }
+        else
+        {
+            gTasks[taskId].data[1] = gTasks[taskId].data[2];
+            return TRUE;
+        }
+        return TRUE;
+    }
+    if(gMain.heldKeys & SELECT_BUTTON)
+    {
+        gUnknown_020387B0 = A_BUTTON;
+        return FALSE;
+    }
+    else
+    {
+        gUnknown_020387B0 = (gMain.heldKeys & SELECT_BUTTON);
+        return FALSE;
+    }
+    }
+}
+#else
+__attribute__((naked))
+bool8 sub_80BA400(u8 taskId)
+{
+    asm(".syntax unified\n\
+    push {r4-r6,lr}\n\
+    sub sp, 0x4\n\
+    lsls r0, 24\n\
+    lsrs r4, r0, 24\n\
+    ldr r2, _080BA428 @ =gMain\n\
+    ldrh r1, [r2, 0x2E]\n\
+    movs r0, 0x80\n\
+    lsls r0, 1\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    beq _080BA434\n\
+    ldr r0, _080BA42C @ =gTasks\n\
+    lsls r1, r4, 2\n\
+    adds r1, r4\n\
+    lsls r1, 3\n\
+    adds r1, r0\n\
+    ldr r0, _080BA430 @ =sub_80BA800\n\
+    str r0, [r1]\n\
+    b _080BA64C\n\
+    .align 2, 0\n\
+_080BA428: .4byte gMain\n\
+_080BA42C: .4byte gTasks\n\
+_080BA430: .4byte sub_80BA800\n\
+_080BA434:\n\
+    movs r0, 0x80\n\
+    lsls r0, 2\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    beq _080BA458\n\
+    ldr r0, _080BA450 @ =gTasks\n\
+    lsls r1, r4, 2\n\
+    adds r1, r4\n\
+    lsls r1, 3\n\
+    adds r1, r0\n\
+    ldr r0, _080BA454 @ =sub_80BAF84\n\
+    str r0, [r1]\n\
+    b _080BA64C\n\
+    .align 2, 0\n\
+_080BA450: .4byte gTasks\n\
+_080BA454: .4byte sub_80BAF84\n\
+_080BA458:\n\
+    movs r0, 0x8\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    beq _080BA478\n\
+    ldr r0, _080BA470 @ =gTasks\n\
+    lsls r1, r4, 2\n\
+    adds r1, r4\n\
+    lsls r1, 3\n\
+    adds r1, r0\n\
+    ldr r0, _080BA474 @ =sub_80BB25C\n\
+    str r0, [r1]\n\
+    b _080BA64C\n\
+    .align 2, 0\n\
+_080BA470: .4byte gTasks\n\
+_080BA474: .4byte sub_80BB25C\n\
+_080BA478:\n\
+    movs r6, 0x1\n\
+    movs r5, 0x1\n\
+    ands r5, r1\n\
+    cmp r5, 0\n\
+    beq _080BA538\n\
+    ldr r0, _080BA4AC @ =gTasks\n\
+    lsls r1, r4, 2\n\
+    adds r1, r4\n\
+    lsls r1, 3\n\
+    adds r5, r1, r0\n\
+    movs r1, 0x8\n\
+    ldrsh r0, [r5, r1]\n\
+    cmp r0, 0\n\
+    beq _080BA4D0\n\
+    movs r2, 0x10\n\
+    ldrsh r0, [r5, r2]\n\
+    cmp r0, 0\n\
+    beq _080BA4BA\n\
+    movs r3, 0xC\n\
+    ldrsh r4, [r5, r3]\n\
+    cmp r4, 0\n\
+    beq _080BA4B0\n\
+    ldrh r0, [r5, 0x10]\n\
+    bl m4aSongNumStop\n\
+    b _080BA4C4\n\
+    .align 2, 0\n\
+_080BA4AC: .4byte gTasks\n\
+_080BA4B0:\n\
+    ldrh r0, [r5, 0x10]\n\
+    bl m4aSongNumStop\n\
+    strh r4, [r5, 0x10]\n\
+    b _080BA64C\n\
+_080BA4BA:\n\
+    movs r4, 0xC\n\
+    ldrsh r0, [r5, r4]\n\
+    cmp r0, 0\n\
+    bne _080BA4C4\n\
+    b _080BA64C\n\
+_080BA4C4:\n\
+    ldrh r0, [r5, 0xC]\n\
+    bl m4aSongNumStart\n\
+    ldrh r0, [r5, 0xC]\n\
+    strh r0, [r5, 0x10]\n\
+    b _080BA64C\n\
+_080BA4D0:\n\
+    ldrh r1, [r5, 0xE]\n\
+    movs r2, 0xE\n\
+    ldrsh r0, [r5, r2]\n\
+    cmp r0, 0\n\
+    beq _080BA514\n\
+    movs r3, 0xA\n\
+    ldrsh r4, [r5, r3]\n\
+    cmp r4, 0\n\
+    beq _080BA500\n\
+    ldr r0, _080BA4FC @ =0x0000015d\n\
+    adds r4, r0, 0\n\
+    adds r0, r1, r4\n\
+    lsls r0, 16\n\
+    lsrs r0, 16\n\
+    bl m4aSongNumStop\n\
+    ldrh r1, [r5, 0xA]\n\
+    adds r4, r1\n\
+    lsls r4, 16\n\
+    lsrs r4, 16\n\
+    adds r0, r4, 0\n\
+    b _080BA528\n\
+    .align 2, 0\n\
+_080BA4FC: .4byte 0x0000015d\n\
+_080BA500:\n\
+    ldr r2, _080BA510 @ =0x0000015d\n\
+    adds r0, r1, r2\n\
+    lsls r0, 16\n\
+    lsrs r0, 16\n\
+    bl m4aSongNumStop\n\
+    strh r4, [r5, 0xE]\n\
+    b _080BA64C\n\
+    .align 2, 0\n\
+_080BA510: .4byte 0x0000015d\n\
+_080BA514:\n\
+    ldrh r1, [r5, 0xA]\n\
+    movs r3, 0xA\n\
+    ldrsh r0, [r5, r3]\n\
+    cmp r0, 0\n\
+    bne _080BA520\n\
+    b _080BA64C\n\
+_080BA520:\n\
+    ldr r4, _080BA534 @ =0x0000015d\n\
+    adds r0, r1, r4\n\
+    lsls r0, 16\n\
+    lsrs r0, 16\n\
+_080BA528:\n\
+    bl m4aSongNumStart\n\
+    ldrh r0, [r5, 0xA]\n\
+    strh r0, [r5, 0xE]\n\
+    b _080BA64C\n\
+    .align 2, 0\n\
+_080BA534: .4byte 0x0000015d\n\
+_080BA538:\n\
+    movs r0, 0x2\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    beq _080BA570\n\
+    movs r0, 0x5\n\
+    bl m4aSongNumStart\n\
+    movs r0, 0x1\n\
+    negs r0, r0\n\
+    str r5, [sp]\n\
+    movs r1, 0\n\
+    movs r2, 0\n\
+    movs r3, 0x10\n\
+    bl BeginNormalPaletteFade\n\
+    ldr r1, _080BA568 @ =gTasks\n\
+    lsls r0, r4, 2\n\
+    adds r0, r4\n\
+    lsls r0, 3\n\
+    adds r0, r1\n\
+    ldr r1, _080BA56C @ =sub_80BA68C\n\
+    str r1, [r0]\n\
+    b _080BA64C\n\
+    .align 2, 0\n\
+_080BA568: .4byte gTasks\n\
+_080BA56C: .4byte sub_80BA68C\n\
+_080BA570:\n\
+    ldrh r1, [r2, 0x30]\n\
+    movs r0, 0x40\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    bne _080BA582\n\
+    movs r0, 0x80\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    beq _080BA59C\n\
+_080BA582:\n\
+    ldr r0, _080BA598 @ =gTasks\n\
+    lsls r1, r4, 2\n\
+    adds r1, r4\n\
+    lsls r1, 3\n\
+    adds r1, r0\n\
+    ldrh r0, [r1, 0x8]\n\
+    eors r0, r6\n\
+    strh r0, [r1, 0x8]\n\
+_080BA592:\n\
+    movs r0, 0x1\n\
+    b _080BA64E\n\
+    .align 2, 0\n\
+_080BA598: .4byte gTasks\n\
+_080BA59C:\n\
+    movs r0, 0x10\n\
+    ands r0, r1\n\
+    lsls r0, 16\n\
+    lsrs r3, r0, 16\n\
+    cmp r3, 0\n\
+    beq _080BA5EA\n\
+    ldr r0, _080BA5CC @ =gTasks\n\
+    lsls r1, r4, 2\n\
+    adds r1, r4\n\
+    lsls r1, 3\n\
+    adds r1, r0\n\
+    movs r2, 0x8\n\
+    ldrsh r0, [r1, r2]\n\
+    cmp r0, 0\n\
+    beq _080BA5D6\n\
+    ldrh r2, [r1, 0xC]\n\
+    movs r3, 0xC\n\
+    ldrsh r0, [r1, r3]\n\
+    cmp r0, 0\n\
+    ble _080BA5D0\n\
+    subs r0, r2, 0x1\n\
+    strh r0, [r1, 0xC]\n\
+    b _080BA592\n\
+    .align 2, 0\n\
+_080BA5CC: .4byte gTasks\n\
+_080BA5D0:\n\
+    movs r0, 0xF7\n\
+    strh r0, [r1, 0xC]\n\
+    b _080BA592\n\
+_080BA5D6:\n\
+    ldrh r2, [r1, 0xA]\n\
+    movs r4, 0xA\n\
+    ldrsh r0, [r1, r4]\n\
+    cmp r0, 0\n\
+    ble _080BA5E4\n\
+    subs r0, r2, 0x1\n\
+    b _080BA5E6\n\
+_080BA5E4:\n\
+    movs r0, 0x75\n\
+_080BA5E6:\n\
+    strh r0, [r1, 0xA]\n\
+    b _080BA592\n\
+_080BA5EA:\n\
+    movs r0, 0x20\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    beq _080BA630\n\
+    ldr r1, _080BA614 @ =gTasks\n\
+    lsls r0, r4, 2\n\
+    adds r0, r4\n\
+    lsls r0, 3\n\
+    adds r1, r0, r1\n\
+    movs r0, 0x8\n\
+    ldrsh r2, [r1, r0]\n\
+    cmp r2, 0\n\
+    beq _080BA61C\n\
+    ldrh r2, [r1, 0xC]\n\
+    movs r4, 0xC\n\
+    ldrsh r0, [r1, r4]\n\
+    cmp r0, 0xF6\n\
+    bgt _080BA618\n\
+    adds r0, r2, 0x1\n\
+    strh r0, [r1, 0xC]\n\
+    b _080BA592\n\
+    .align 2, 0\n\
+_080BA614: .4byte gTasks\n\
+_080BA618:\n\
+    strh r3, [r1, 0xC]\n\
+    b _080BA592\n\
+_080BA61C:\n\
+    ldrh r3, [r1, 0xA]\n\
+    movs r4, 0xA\n\
+    ldrsh r0, [r1, r4]\n\
+    cmp r0, 0x74\n\
+    bgt _080BA62C\n\
+    adds r0, r3, 0x1\n\
+    strh r0, [r1, 0xA]\n\
+    b _080BA592\n\
+_080BA62C:\n\
+    strh r2, [r1, 0xA]\n\
+    b _080BA592\n\
+_080BA630:\n\
+    ldrh r1, [r2, 0x2C]\n\
+    movs r0, 0x4\n\
+    ands r0, r1\n\
+    lsls r0, 16\n\
+    lsrs r1, r0, 16\n\
+    cmp r1, 0\n\
+    beq _080BA648\n\
+    ldr r0, _080BA644 @ =gUnknown_020387B0\n\
+    strb r6, [r0]\n\
+    b _080BA64C\n\
+    .align 2, 0\n\
+_080BA644: .4byte gUnknown_020387B0\n\
+_080BA648:\n\
+    ldr r0, _080BA658 @ =gUnknown_020387B0\n\
+    strb r1, [r0]\n\
+_080BA64C:\n\
+    movs r0, 0\n\
+_080BA64E:\n\
+    add sp, 0x4\n\
+    pop {r4-r6}\n\
+    pop {r1}\n\
+    bx r1\n\
+    .align 2, 0\n\
+_080BA658: .4byte gUnknown_020387B0\n\
+    .syntax divided");
+}
+#endif