decompile up to sub_80BA800

3 files changed, 210 insertions, 480 deletions

diff --git a/asm/sound_check_menu.s b/asm/sound_check_menu.s
index 99b894c83..9ebeee4e8 100644
--- a/asm/sound_check_menu.s
+++ b/asm/sound_check_menu.s
@@ -6,469 +6,6 @@
 
 	.text
 
-	thumb_func_start sub_80BA65C
-sub_80BA65C: @ 80BA65C
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	adds r0, r4, 0
-	bl sub_80BA400
-	lsls r0, 24
-	cmp r0, 0
-	beq _080BA67C
-	ldr r0, _080BA684 @ =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r1, r0
-	ldr r0, _080BA688 @ =sub_80BA384
-	str r0, [r1]
-_080BA67C:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA684: .4byte gTasks
-_080BA688: .4byte sub_80BA384
-	thumb_func_end sub_80BA65C
-
-	thumb_func_start sub_80BA68C
-sub_80BA68C: @ 80BA68C
-	push {lr}
-	lsls r0, 24
-	lsrs r2, r0, 24
-	ldr r0, _080BA6B0 @ =gPaletteFade
-	ldrb r1, [r0, 0x7]
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	bne _080BA6AA
-	adds r0, r2, 0
-	bl DestroyTask
-	ldr r0, _080BA6B4 @ =CB2_InitTitleScreen
-	bl SetMainCallback2
-_080BA6AA:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA6B0: .4byte gPaletteFade
-_080BA6B4: .4byte CB2_InitTitleScreen
-	thumb_func_end sub_80BA68C
-
-	thumb_func_start sub_80BA6B8
-sub_80BA6B8: @ 80BA6B8
-	push {lr}
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _080BA6C6
-	cmp r0, 0x1
-	beq _080BA6E0
-_080BA6C6:
-	ldr r1, _080BA6D4 @ =REG_WIN1H
-	ldr r2, _080BA6D8 @ =0x000011df
-	adds r0, r2, 0
-	strh r0, [r1]
-	adds r1, 0x4
-	ldr r2, _080BA6DC @ =0x00002957
-	b _080BA6EC
-	.align 2, 0
-_080BA6D4: .4byte REG_WIN1H
-_080BA6D8: .4byte 0x000011df
-_080BA6DC: .4byte 0x00002957
-_080BA6E0:
-	ldr r1, _080BA6F4 @ =REG_WIN1H
-	ldr r2, _080BA6F8 @ =0x000011df
-	adds r0, r2, 0
-	strh r0, [r1]
-	adds r1, 0x4
-	ldr r2, _080BA6FC @ =0x0000618f
-_080BA6EC:
-	adds r0, r2, 0
-	strh r0, [r1]
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA6F4: .4byte REG_WIN1H
-_080BA6F8: .4byte 0x000011df
-_080BA6FC: .4byte 0x0000618f
-	thumb_func_end sub_80BA6B8
-
-	thumb_func_start sub_80BA700
-sub_80BA700: @ 80BA700
-	push {r4-r7,lr}
-	sub sp, 0x8
-	lsls r0, 16
-	lsrs r5, r0, 16
-	lsls r1, 16
-	lsrs r6, r1, 16
-	lsls r2, 16
-	lsrs r7, r2, 16
-	movs r1, 0
-	movs r2, 0
-_080BA714:
-	mov r3, sp
-	adds r0, r3, r1
-	strb r2, [r0]
-	adds r0, r1, 0x1
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x2
-	bls _080BA714
-	mov r1, sp
-	movs r0, 0xB0
-	strb r0, [r1, 0x3]
-	movs r0, 0xFF
-	strb r0, [r1, 0x4]
-	movs r4, 0
-	adds r0, r5, 0
-	movs r1, 0x64
-	bl __udivsi3
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _080BA748
-	mov r1, sp
-	adds r0, 0xA1
-	strb r0, [r1]
-	movs r4, 0x1
-_080BA748:
-	adds r0, r5, 0
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0xA
-	bl __udivsi3
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	bne _080BA766
-	cmp r4, 0
-	beq _080BA76C
-_080BA766:
-	mov r1, sp
-	adds r0, 0xA1
-	strb r0, [r1, 0x1]
-_080BA76C:
-	mov r4, sp
-	adds r0, r5, 0
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0xA
-	bl __umodsi3
-	adds r0, 0xA1
-	strb r0, [r4, 0x2]
-	lsls r1, r6, 24
-	lsrs r1, 24
-	lsls r2, r7, 24
-	lsrs r2, 24
-	mov r0, sp
-	bl MenuPrint
-	add sp, 0x8
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80BA700
-
-	thumb_func_start sub_80BA79C
-sub_80BA79C: @ 80BA79C
-	push {r4-r6,lr}
-	sub sp, 0xC
-	adds r4, r0, 0
-	lsls r1, 16
-	lsrs r6, r1, 16
-	lsls r2, 16
-	lsrs r5, r2, 16
-	movs r3, 0
-	movs r1, 0
-_080BA7AE:
-	mov r2, sp
-	adds r0, r2, r3
-	strb r1, [r0]
-	adds r0, r3, 0x1
-	lsls r0, 24
-	lsrs r3, r0, 24
-	cmp r3, 0xA
-	bls _080BA7AE
-	mov r0, sp
-	movs r1, 0xFF
-	strb r1, [r0, 0xA]
-	movs r3, 0
-	ldrb r0, [r4]
-	lsls r2, r6, 24
-	lsls r5, 24
-	cmp r0, 0xFF
-	beq _080BA7EC
-_080BA7D0:
-	mov r0, sp
-	adds r1, r0, r3
-	adds r0, r4, r3
-	ldrb r0, [r0]
-	strb r0, [r1]
-	adds r0, r3, 0x1
-	lsls r0, 24
-	lsrs r3, r0, 24
-	adds r0, r4, r3
-	ldrb r0, [r0]
-	cmp r0, 0xFF
-	beq _080BA7EC
-	cmp r3, 0x9
-	bls _080BA7D0
-_080BA7EC:
-	lsrs r1, r2, 24
-	lsrs r2, r5, 24
-	mov r0, sp
-	bl MenuPrint
-	add sp, 0xC
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80BA79C
-
-	thumb_func_start sub_80BA800
-sub_80BA800: @ 80BA800
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0xCC
-	lsls r0, 24
-	str r0, [sp, 0xB0]
-	lsrs r2, r0, 24
-	str r2, [sp, 0xAC]
-	ldr r1, _080BA9E8 @ =gUnknown_083D0312
-	mov r0, sp
-	movs r2, 0xA
-	bl memcpy
-	mov r0, sp
-	adds r0, 0xC
-	str r0, [sp, 0xB4]
-	ldr r1, _080BA9EC @ =gUnknown_083D031C
-	movs r2, 0xB
-	bl memcpy
-	mov r2, sp
-	adds r2, 0x18
-	str r2, [sp, 0xB8]
-	ldr r1, _080BA9F0 @ =gDebugText_Voice
-	adds r0, r2, 0
-	movs r2, 0xA
-	bl memcpy
-	mov r0, sp
-	adds r0, 0x24
-	str r0, [sp, 0xBC]
-	ldr r1, _080BA9F4 @ =gDebugText_Volume
-	movs r2, 0xA
-	bl memcpy
-	mov r2, sp
-	adds r2, 0x30
-	str r2, [sp, 0xC0]
-	ldr r1, _080BA9F8 @ =gDebugText_Panpot
-	adds r0, r2, 0
-	movs r2, 0xA
-	bl memcpy
-	mov r0, sp
-	adds r0, 0x3C
-	str r0, [sp, 0xC4]
-	ldr r1, _080BA9FC @ =gDebugText_Pitch
-	movs r2, 0xA
-	bl memcpy
-	mov r2, sp
-	adds r2, 0x48
-	str r2, [sp, 0xC8]
-	ldr r1, _080BAA00 @ =gDebugText_Length
-	adds r0, r2, 0
-	movs r2, 0xA
-	bl memcpy
-	add r4, sp, 0x54
-	ldr r1, _080BAA04 @ =gDebugText_Release
-	adds r0, r4, 0
-	movs r2, 0xA
-	bl memcpy
-	add r7, sp, 0x60
-	ldr r1, _080BAA08 @ =gDebugText_Progress
-	adds r0, r7, 0
-	movs r2, 0xA
-	bl memcpy
-	add r0, sp, 0x6C
-	mov r10, r0
-	ldr r1, _080BAA0C @ =gDebugText_Chorus
-	movs r2, 0xA
-	bl memcpy
-	add r2, sp, 0x78
-	mov r9, r2
-	ldr r1, _080BAA10 @ =gDebugText_Priority
-	mov r0, r9
-	movs r2, 0xA
-	bl memcpy
-	add r0, sp, 0x84
-	mov r8, r0
-	ldr r1, _080BAA14 @ =gUnknown_083D0381
-	movs r2, 0x9
-	bl memcpy
-	add r6, sp, 0x90
-	ldr r1, _080BAA18 @ =gUnknown_083D038A
-	adds r0, r6, 0
-	movs r2, 0x9
-	bl memcpy
-	add r5, sp, 0x9C
-	ldr r1, _080BAA1C @ =gUnknown_083D0393
-	adds r0, r5, 0
-	movs r2, 0x9
-	bl memcpy
-	movs r1, 0x80
-	lsls r1, 19
-	movs r2, 0xC5
-	lsls r2, 6
-	adds r0, r2, 0
-	strh r0, [r1]
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0x1D
-	movs r3, 0x13
-	bl MenuDrawTextWindow
-	mov r0, sp
-	movs r1, 0x13
-	movs r2, 0x4
-	bl MenuPrint
-	ldr r0, [sp, 0xB4]
-	movs r1, 0x13
-	movs r2, 0x2
-	bl MenuPrint
-	ldr r0, [sp, 0xB8]
-	movs r1, 0x2
-	movs r2, 0x1
-	bl MenuPrint
-	ldr r0, [sp, 0xBC]
-	movs r1, 0x2
-	movs r2, 0x3
-	bl MenuPrint
-	ldr r0, [sp, 0xC0]
-	movs r1, 0x2
-	movs r2, 0x5
-	bl MenuPrint
-	ldr r0, [sp, 0xC4]
-	movs r1, 0x2
-	movs r2, 0x7
-	bl MenuPrint
-	ldr r0, [sp, 0xC8]
-	movs r1, 0x2
-	movs r2, 0x9
-	bl MenuPrint
-	adds r0, r4, 0
-	movs r1, 0x2
-	movs r2, 0xB
-	bl MenuPrint
-	adds r0, r7, 0
-	movs r1, 0x2
-	movs r2, 0xD
-	bl MenuPrint
-	mov r0, r10
-	movs r1, 0x2
-	movs r2, 0xF
-	bl MenuPrint
-	mov r0, r9
-	movs r1, 0x2
-	movs r2, 0x11
-	bl MenuPrint
-	mov r0, r8
-	movs r1, 0x13
-	movs r2, 0x10
-	bl MenuPrint
-	adds r0, r6, 0
-	movs r1, 0x13
-	movs r2, 0xE
-	bl MenuPrint
-	adds r0, r5, 0
-	movs r1, 0x13
-	movs r2, 0xC
-	bl MenuPrint
-	ldr r1, _080BAA20 @ =REG_WIN0H
-	movs r0, 0xF0
-	strh r0, [r1]
-	adds r1, 0x4
-	movs r0, 0xA0
-	strh r0, [r1]
-	ldr r0, _080BAA24 @ =gUnknown_020387B3
-	movs r1, 0
-	strb r1, [r0]
-	ldr r0, _080BAA28 @ =gUnknown_020387B1
-	strb r1, [r0]
-	ldr r0, _080BAA2C @ =gUnknown_020387B2
-	strb r1, [r0]
-	ldr r0, _080BAA30 @ =gUnknown_03005D30
-	movs r2, 0
-	str r2, [r0]
-	ldr r0, _080BAA34 @ =gUnknown_020387D8
-	strb r2, [r0]
-	ldr r1, _080BAA38 @ =gUnknown_020387D9
-	movs r0, 0x1
-	strb r0, [r1]
-	ldr r0, _080BAA3C @ =gUnknown_020387B4
-	str r2, [r0]
-	movs r1, 0x78
-	str r1, [r0, 0x4]
-	str r2, [r0, 0x8]
-	movs r1, 0xF0
-	lsls r1, 6
-	str r1, [r0, 0xC]
-	movs r1, 0xB4
-	str r1, [r0, 0x10]
-	str r2, [r0, 0x18]
-	str r2, [r0, 0x14]
-	str r2, [r0, 0x1C]
-	movs r1, 0x2
-	str r1, [r0, 0x20]
-	bl sub_80BAD5C
-	movs r0, 0
-	movs r1, 0
-	bl sub_80BAE10
-	ldr r1, _080BAA40 @ =gTasks
-	ldr r2, [sp, 0xAC]
-	lsls r0, r2, 2
-	adds r0, r2
-	lsls r0, 3
-	adds r0, r1
-	ldr r1, _080BAA44 @ =sub_80BAA48
-	str r1, [r0]
-	add sp, 0xCC
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080BA9E8: .4byte gUnknown_083D0312
-_080BA9EC: .4byte gUnknown_083D031C
-_080BA9F0: .4byte gDebugText_Voice
-_080BA9F4: .4byte gDebugText_Volume
-_080BA9F8: .4byte gDebugText_Panpot
-_080BA9FC: .4byte gDebugText_Pitch
-_080BAA00: .4byte gDebugText_Length
-_080BAA04: .4byte gDebugText_Release
-_080BAA08: .4byte gDebugText_Progress
-_080BAA0C: .4byte gDebugText_Chorus
-_080BAA10: .4byte gDebugText_Priority
-_080BAA14: .4byte gUnknown_083D0381
-_080BAA18: .4byte gUnknown_083D038A
-_080BAA1C: .4byte gUnknown_083D0393
-_080BAA20: .4byte REG_WIN0H
-_080BAA24: .4byte gUnknown_020387B3
-_080BAA28: .4byte gUnknown_020387B1
-_080BAA2C: .4byte gUnknown_020387B2
-_080BAA30: .4byte gUnknown_03005D30
-_080BAA34: .4byte gUnknown_020387D8
-_080BAA38: .4byte gUnknown_020387D9
-_080BAA3C: .4byte gUnknown_020387B4
-_080BAA40: .4byte gTasks
-_080BAA44: .4byte sub_80BAA48
-	thumb_func_end sub_80BA800
-
 	thumb_func_start sub_80BAA48
 sub_80BAA48: @ 80BAA48
 	push {r4,r5,lr}
@@ -1146,7 +683,7 @@ sub_80BAF84: @ 80BAF84
 	movs r2, 0x4
 	bl memcpy
 	add r5, sp, 0x8
-	ldr r1, _080BB024 @ =gUnknown_083D0381
+	ldr r1, _080BB024 @ =gDebugText_Playing
 	adds r0, r5, 0
 	movs r2, 0x9
 	bl memcpy
@@ -1202,7 +739,7 @@ sub_80BAF84: @ 80BAF84
 	.align 2, 0
 _080BB01C: .4byte gOtherText_SE
 _080BB020: .4byte gOtherText_Pan
-_080BB024: .4byte gUnknown_083D0381
+_080BB024: .4byte gDebugText_Playing
 _080BB028: .4byte REG_WIN0H
 _080BB02C: .4byte gUnknown_020387B4
 _080BB030: .4byte gTasks
diff --git a/data/sound_check_menu.s b/data/sound_check_menu.s
index 6e4702ae3..9278b8b45 100644
--- a/data/sound_check_menu.s
+++ b/data/sound_check_menu.s
@@ -34,11 +34,11 @@ gUnknown_083D0300:: @ 83D0300
 	.byte  1, 15
 	.byte  1, 17
 
-gUnknown_083D0312:: @ 83D0312
-	.string "Bぼたんで　もどる$"
+gDebugText_BBack:: @ 83D0312
+	.string "Bぼたんで　もどる$" @ back
 
-gUnknown_083D031C:: @ 83D031C
-	.string "Aぼたんで　さいせい$"
+gDebugText_APlay:: @ 83D031C
+	.string "Aぼたんで　さいせい$" @ play
 
 gDebugText_Voice:: @ 83D0327
 	.string "VOICE‥‥‥‥$"
@@ -67,13 +67,13 @@ gDebugText_Chorus:: @ 83D036D
 gDebugText_Priority:: @ 83D0377
 	.string "PRIORITY‥$"
 
-gUnknown_083D0381:: @ 83D0381
+gDebugText_Playing:: @ 83D0381
 	.string "さいせいちゆう‥$" @ 再生中 (playing)
 
-gUnknown_083D038A:: @ 83D038A
+gDebugText_Reverse:: @ 83D038A
 	.string "はんてん‥‥‥‥$" @ 反転 (reverse)
 
-gUnknown_083D0393:: @ 83D0393
+gDebugText_Stereo:: @ 83D0393
 	.string "すてれお‥‥‥‥$" @ stereo
 
 	.align 2
diff --git a/src/sound_check_menu.c b/src/sound_check_menu.c
index 75cf48798..a46e7e363 100755
--- a/src/sound_check_menu.c
+++ b/src/sound_check_menu.c
@@ -7,22 +7,51 @@
 #include "text.h"
 #include "menu.h"
 #include "songs.h"
+#include "title_screen.h"
 
 // local task defines
-#define UNK_DATA0 data[0]
+#define WINDOW_SELECTED data[0]
 #define BGM_INDEX data[1]
 #define SE_INDEX data[2]
 #define UNK_DATA3 data[3]
 
+// window selections
+enum
+{
+    BGM_WINDOW,
+    SE_WINDOW
+};
+
 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 void sub_80BAD5C(void);
+extern void sub_80BAE10(u8, u8);
+extern void sub_80BAA48(u8);
+
+struct Struct_20387B4
+{
+    u32 unk0;
+    u32 unk4;
+    u32 unk8;
+    u32 unkC;
+    u32 unk10;
+    u32 unk14;
+    u32 unk18;
+    u32 unk1C;
+    u32 unk20;
+};
+
+extern struct Struct_20387B4 gUnknown_020387B4;
 
+extern u8 gUnknown_020387B3;
+extern u8 gUnknown_020387B1;
+extern u8 gUnknown_020387B2;
+extern u32 gUnknown_03005D30;
+extern u8 gUnknown_020387D8;
+extern u8 gUnknown_020387D9;
 extern u8 gUnknown_020387B0;
 
 extern u8 *gBGMNames[];
@@ -34,9 +63,26 @@ extern u8 gDebugText_SE[];
 extern u8 gDebugText_ABDesc[];
 extern u8 gDebugText_UpDown[];
 extern u8 gDebugText_DriverTest[];
+extern u8 gDebugText_BBack[];
+extern u8 gDebugText_APlay[];
+extern u8 gDebugText_Voice[];
+extern u8 gDebugText_Volume[];
+extern u8 gDebugText_Panpot[];
+extern u8 gDebugText_Pitch[];
+extern u8 gDebugText_Length[];
+extern u8 gDebugText_Release[];
+extern u8 gDebugText_Progress[];
+extern u8 gDebugText_Chorus[];
+extern u8 gDebugText_Priority[];
+extern u8 gDebugText_Playing[];
+extern u8 gDebugText_Reverse[];
+extern u8 gDebugText_Stereo[];
 
 void sub_80BA258(u8);
 void sub_80BA384(u8);
+void sub_80BA65C(u8);
+void sub_80BA700(u16, u16, u16);
+void sub_80BA79C(u8 *, u16, u16);
 
 void sub_80BA0A8(void)
 {
@@ -101,7 +147,7 @@ void CB2_StartSoundCheckMenu(void)
     SetMainCallback2(sub_80BA0A8);
     REG_DISPCNT = 0x7140;
     taskId = CreateTask(sub_80BA258, 0);
-    TASK.UNK_DATA0 = 0;
+    TASK.WINDOW_SELECTED = BGM_WINDOW;
     TASK.BGM_INDEX = 0;
     TASK.SE_INDEX = 0;
     TASK.UNK_DATA3 = 0;
@@ -146,9 +192,9 @@ void sub_80BA258(u8 taskId)
     }
 }
 
-void sub_80BA384(u8 taskId)
+void sub_80BA384(u8 taskId) // Task_HandleDrawingSoundCheckMenuText
 {
-    sub_80BA6B8(TASK.UNK_DATA0);
+    sub_80BA6B8(TASK.WINDOW_SELECTED);
     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);
@@ -157,7 +203,7 @@ void sub_80BA384(u8 taskId)
 }
 
 #ifdef NONMATCHING
-bool8 sub_80BA400(u8 taskId)
+bool8 sub_80BA400(u8 taskId) // Task_ProcessSoundCheckMenuInput
 {
     if(gMain.newKeys & R_BUTTON) // driver test
     {
@@ -198,6 +244,7 @@ bool8 sub_80BA400(u8 taskId)
             // _080BA4C4
             m4aSongNumStart(gTasks[taskId].data[2]);
             gTasks[taskId].data[4] = gTasks[taskId].data[2];
+            return FALSE;
         }
         else // _080BA4D0
         {
@@ -620,3 +667,149 @@ _080BA658: .4byte gUnknown_020387B0\n\
     .syntax divided");
 }
 #endif
+
+void sub_80BA65C(u8 taskId)
+{
+    if(sub_80BA400(taskId) != FALSE)
+        gTasks[taskId].func = sub_80BA384;
+}
+
+void sub_80BA68C(u8 taskId)
+{
+    if(!gPaletteFade.active)
+    {
+        DestroyTask(taskId);
+        SetMainCallback2(CB2_InitTitleScreen);
+    }
+}
+
+void sub_80BA6B8(u8 windowType)
+{
+    switch(windowType)
+    {
+        case BGM_WINDOW:
+        default:
+            REG_WIN1H = 0x11DF;
+            REG_WIN1V = 0x2957;
+            break;
+        case SE_WINDOW:
+            REG_WIN1H = 0x11DF;
+            REG_WIN1V = 0x618F;
+            break;
+    }
+}
+
+void sub_80BA700(u16 soundIndex, u16 x, u16 y) // PrintSoundNumber ?
+{
+    u8 i;
+    u8 str[5];
+    bool8 someBool;
+    u8 divisorValue;
+
+    for(i = 0; i < 3; i++)
+        str[i] = 0; // initialize array
+
+    str[3] = 0xB0;
+    str[4] = 0xFF;
+    someBool = FALSE;
+
+    divisorValue = soundIndex / 100;
+    if(divisorValue)
+    {
+        str[0] = divisorValue + 0xA1;
+        someBool = TRUE;
+    }
+
+    divisorValue = (soundIndex % 100) / 10;
+    if(divisorValue || someBool != FALSE)
+        str[1] = divisorValue + 0xA1;
+
+    str[2] = ((soundIndex % 100) % 10) + 0xA1;
+    MenuPrint(str, x, y);
+}
+
+void sub_80BA79C(u8 *string, u16 x, u16 y)
+{
+    u8 i;
+    u8 str[11];
+
+    for(i = 0; i < 11; i++)
+        str[i] = 0; // format string.
+
+    str[10] = 0xFF; // the above for loop formats the last element of the array unnecessarily.
+
+    for(i = 0; string[i] != 0xFF && i < 10; i++)
+        str[i] = string[i];
+
+    MenuPrint(str, x, y);
+}
+
+void sub_80BA800(u8 taskId)
+{
+    u8 bbackStr[10];
+    u8 aplayStr[11];
+    u8 voiceStr[10];
+    u8 volumeStr[10];
+    u8 panpotStr[10];
+    u8 pitchStr[10];
+    u8 lengthStr[10];
+    u8 releaseStr[10];
+    u8 progressStr[10];
+    u8 chorusStr[10];
+    u8 priorityStr[10];
+    u8 playingStr[9];
+    u8 reverseStr[9];
+    u8 stereoStr[9];
+
+    memcpy(bbackStr, gDebugText_BBack, sizeof bbackStr);
+    memcpy(aplayStr, gDebugText_APlay, sizeof aplayStr);
+    memcpy(voiceStr, gDebugText_Voice, sizeof voiceStr);
+    memcpy(volumeStr, gDebugText_Volume, sizeof volumeStr);
+    memcpy(panpotStr, gDebugText_Panpot, sizeof panpotStr);
+    memcpy(pitchStr, gDebugText_Pitch, sizeof pitchStr);
+    memcpy(lengthStr, gDebugText_Length, sizeof lengthStr);
+    memcpy(releaseStr, gDebugText_Release, sizeof releaseStr);
+    memcpy(progressStr, gDebugText_Progress, sizeof progressStr);
+    memcpy(chorusStr, gDebugText_Chorus, sizeof chorusStr);
+    memcpy(priorityStr, gDebugText_Priority, sizeof priorityStr);
+    memcpy(playingStr, gDebugText_Playing, sizeof playingStr);
+    memcpy(reverseStr, gDebugText_Reverse, sizeof reverseStr);
+    memcpy(stereoStr, gDebugText_Stereo, sizeof stereoStr);
+
+    REG_DISPCNT = 0x3140;
+    MenuDrawTextWindow(0, 0, 0x1D, 0x13);
+    MenuPrint(bbackStr, 0x13, 0x4);
+    MenuPrint(aplayStr, 0x13, 0x2);
+    MenuPrint(voiceStr, 0x2, 0x1);
+    MenuPrint(volumeStr, 0x2, 0x3);
+    MenuPrint(panpotStr, 0x2, 0x5);
+    MenuPrint(pitchStr, 0x2, 0x7);
+    MenuPrint(lengthStr, 0x2, 0x9);
+    MenuPrint(releaseStr, 0x2, 0xB);
+    MenuPrint(progressStr, 0x2, 0xD);
+    MenuPrint(chorusStr, 0x2, 0xF);
+    MenuPrint(priorityStr, 0x2, 0x11);
+    MenuPrint(playingStr, 0x13, 0x10);
+    MenuPrint(reverseStr, 0x13, 0xE);
+    MenuPrint(stereoStr, 0x13, 0xC);
+    REG_WIN0H = 0xF0;
+    REG_WIN0V = 0xA0;
+    gUnknown_020387B3 = 0;
+    gUnknown_020387B1 = 0;
+    gUnknown_020387B2 = 0;
+    gUnknown_03005D30 = 0;
+    gUnknown_020387D8 = 0;
+    gUnknown_020387D9 = 1;
+    gUnknown_020387B4.unk0 = 0;
+    gUnknown_020387B4.unk4 = 0x78;
+    gUnknown_020387B4.unk8 = 0;
+    gUnknown_020387B4.unkC = 0x3C00;
+    gUnknown_020387B4.unk10 = 0xB4;
+    gUnknown_020387B4.unk18 = 0;
+    gUnknown_020387B4.unk14 = 0;
+    gUnknown_020387B4.unk1C = 0;
+    gUnknown_020387B4.unk20 = 2;
+    sub_80BAD5C();
+    sub_80BAE10(0, 0);
+    gTasks[taskId].func = sub_80BAA48;
+}