decomp, label, doc, repeat

29 files changed, 815 insertions, 918 deletions

diff --git a/asm/code_2.s b/asm/code_2.s
index 4fb8c50..994f260 100644
--- a/asm/code_2.s
+++ b/asm/code_2.s
@@ -1116,7 +1116,7 @@ _08000F58:
 	ldr r0, _08000F64
 	bl sub_80121E0
 _08000F5E:
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	b _08000F78
 	.align 2, 0
 _08000F64: .4byte 0x000f1209
diff --git a/asm/code_800D090.s b/asm/code_800D090.s
index d6f365d..9571b63 100644
--- a/asm/code_800D090.s
+++ b/asm/code_800D090.s
@@ -5,93 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_800D16C
-sub_800D16C:
-	push {r0-r3}
-	push {lr}
-	mov r12, r4
-	ldr r4, _0800D198
-	add sp, r4
-	mov r4, r12
-	ldr r0, _0800D19C
-	add r0, sp
-	ldr r1, [r0]
-	movs r2, 0x81
-	lsls r2, 3
-	add r2, sp
-	mov r0, sp
-	bl vsprintf
-	movs r3, 0x80
-	lsls r3, 3
-	add sp, r3
-	pop {r3}
-	add sp, 0x10
-	bx r3
-	.align 2, 0
-_0800D198: .4byte 0xfffffc00
-_0800D19C: .4byte 0x00000404
-	thumb_func_end sub_800D16C
-
-	thumb_func_start sub_800D1A0
-sub_800D1A0:
-	push {r3}
-	add sp, 0x4
-	bx lr
-	thumb_func_end sub_800D1A0
-
-	thumb_func_start nullsub_183
-nullsub_183:
-	bx lr
-	thumb_func_end nullsub_183
-
-	thumb_func_start nullsub_188
-nullsub_188:
-	bx lr
-	thumb_func_end nullsub_188
-
-	thumb_func_start nullsub_184
-nullsub_184:
-	bx lr
-	thumb_func_end nullsub_184
-
-	thumb_func_start sub_800D1B4
-sub_800D1B4:
-	movs r0, 0
-	bx lr
-	thumb_func_end sub_800D1B4
-
-	thumb_func_start sub_800D1B8
-sub_800D1B8:
-	adds r0, r2, 0
-	bx lr
-	thumb_func_end sub_800D1B8
-
-	thumb_func_start nullsub_187
-nullsub_187:
-	bx lr
-	thumb_func_end nullsub_187
-
-	thumb_func_start sub_800D1C0
-sub_800D1C0:
-	push {lr}
-	ldr r1, _0800D1D4
-	ldr r0, [r1]
-	cmp r0, 0x2
-	bne _0800D1D8
-	ldr r0, [r1, 0x4]
-	cmp r0, 0x2
-	bne _0800D1D8
-	movs r0, 0x1
-	b _0800D1DA
-	.align 2, 0
-_0800D1D4: .4byte gUnknown_202DB60
-_0800D1D8:
-	movs r0, 0
-_0800D1DA:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_800D1C0
-
 	thumb_func_start sub_800D1E0
 sub_800D1E0:
 	push {r4-r7,lr}
diff --git a/asm/code_80118A4.s b/asm/code_80118A4.s
deleted file mode 100644
index 06b2d1f..0000000
--- a/asm/code_80118A4.s
+++ /dev/null
@@ -1,38 +0,0 @@
-	.include "constants/gba_constants.inc"
-	.include "asm/macros.inc"
-
-	.syntax unified
-
-	.text	
-
-        @ Unused
-	thumb_func_start PrintMessageWithFuncFileLine
-PrintMessageWithFuncFileLine:
-	push {r2,r3}
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r4, r0, 0
-	adds r5, r1, 0
-	ldr r1, [sp, 0x10]
-	add r2, sp, 0x14
-	bl vsprintf
-	adds r0, r4, 0
-	bl strlen
-	adds r4, r0
-	ldr r1, _08011AFC
-	ldr r2, [r5, 0x8]
-	ldr r3, [r5]
-	ldr r0, [r5, 0x4]
-	str r0, [sp]
-	adds r0, r4, 0
-	bl sprintf
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r3}
-	add sp, 0x8
-	bx r3
-	.align 2, 0
-_08011AFC: .4byte gFuncFileLineString2
-	thumb_func_end PrintMessageWithFuncFileLine
-
-        .align 2,0 @ Don't pad with nop
diff --git a/asm/code_8012A18.s b/asm/code_8012A18.s
index ddb0ef8..e765d1a 100644
--- a/asm/code_8012A18.s
+++ b/asm/code_8012A18.s
@@ -2875,7 +2875,7 @@ _08014110: .4byte 0x004000bc
 	thumb_func_start sub_8014114
 sub_8014114:
 	push {lr}
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	movs r0, 0
 	bl SetSavingIconCoords
 	pop {r0}
diff --git a/asm/code_8027C84.s b/asm/code_8027C84.s
index 8aa4674..7c4a52b 100644
--- a/asm/code_8027C84.s
+++ b/asm/code_8027C84.s
@@ -1277,7 +1277,7 @@ _08028782:
 	ldr r1, [r4]
 	str r0, [r1, 0x44]
 _0802878A:
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	b _08028AF2
 _08028790:
 	ldr r0, [r6]
diff --git a/asm/code_80521D0.s b/asm/code_80521D0.s
index 5114113..2e47ea9 100644
--- a/asm/code_80521D0.s
+++ b/asm/code_80521D0.s
@@ -4476,7 +4476,7 @@ _08054B58:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_8058AAC
+	bl SkyAttackMoveAction
 	bl _080554BA
 _08054B68:
 	adds r0, r7, 0
@@ -4800,7 +4800,7 @@ _08054E0C:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805B220
+	bl TrapperOrbAction
 	b _080554BA
 _08054E1A:
 	adds r0, r7, 0
@@ -4849,7 +4849,7 @@ _08054E6E:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805B8B0
+	bl SkullBashMoveAction
 	b _080554BA
 _08054E7C:
 	adds r0, r7, 0
@@ -4905,7 +4905,7 @@ _08054EDE:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_8057A98
+	bl TormentMoveAction
 	b _080554BA
 _08054EEC:
 	adds r0, r7, 0
@@ -4961,7 +4961,7 @@ _08054F4E:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805C2AC
+	bl FillInOrbAction
 	b _080554BA
 _08054F5C:
 	adds r0, r7, 0
@@ -5031,7 +5031,7 @@ _08054FDA:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805983C
+	bl DiveMoveAction
 	b _080554BA
 _08054FE8:
 	adds r0, r7, 0
@@ -5066,7 +5066,7 @@ _08055020:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805BF40
+	bl TrapbustOrbAction
 	b _080554BA
 _0805502E:
 	adds r0, r7, 0
@@ -5087,7 +5087,7 @@ _0805504A:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805810C
+	bl GrudgeMoveAction
 	b _080554BA
 _08055058:
 	adds r0, r7, 0
@@ -5236,7 +5236,7 @@ _08055174:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805A640
+	bl SpitUpMoveAction
 	b _080554BA
 _08055182:
 	adds r0, r7, 0
@@ -5341,7 +5341,7 @@ _08055246:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_8059C8C
+	bl HelpingHandMoveAction
 	b _080554BA
 _08055254:
 	adds r0, r7, 0
@@ -5390,7 +5390,7 @@ _080552A8:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805B038
+	bl TransformMoveAction
 	b _080554BA
 _080552B6:
 	adds r0, r7, 0
@@ -5425,7 +5425,7 @@ _080552EE:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805BD88
+	bl TransferOrbAction
 	b _080554BA
 _080552FC:
 	adds r0, r7, 0
@@ -5474,7 +5474,7 @@ _08055350:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805BED4
+	bl EscapeOrbAction
 	b _080554BA
 _0805535E:
 	adds r0, r7, 0
@@ -5502,7 +5502,7 @@ _08055388:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_8059340
+	bl SketchMoveAction
 	b _080554BA
 _08055396:
 	adds r0, r7, 0
@@ -5523,7 +5523,7 @@ _080553B2:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_8059290
+	bl SkillSwapMoveAction
 	b _080554BA
 _080553C0:
 	adds r0, r7, 0
@@ -5537,7 +5537,7 @@ _080553CE:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805BBA8
+	bl CleanseOrbAction
 	b _080554BA
 _080553DC:
 	adds r0, r7, 0
@@ -5635,7 +5635,7 @@ _08055492:
 	adds r1, r5, 0
 	mov r2, r8
 	mov r3, r9
-	bl sub_805B464
+	bl MimicMoveAction
 	b _080554BA
 _080554A0:
 	adds r0, r7, 0
@@ -10577,8 +10577,8 @@ _08057A90: .4byte gUnknown_202DF98
 _08057A94: .4byte gUnknown_80FC7EC
 	thumb_func_end sub_8057A0C
 
-	thumb_func_start sub_8057A98
-sub_8057A98:
+	thumb_func_start TormentMoveAction
+TormentMoveAction:
 	push {r4-r7,lr}
 	mov r7, r10
 	mov r6, r9
@@ -10719,7 +10719,7 @@ _08057B9C:
 	bx r1
 	.align 2, 0
 _08057BB0: .4byte gUnknown_80FCFE4
-	thumb_func_end sub_8057A98
+	thumb_func_end TormentMoveAction
 
 	thumb_func_start sub_8057BB4
 sub_8057BB4:
@@ -11439,8 +11439,8 @@ _080580F4:
 	bx r1
 	thumb_func_end sub_805805C
 
-	thumb_func_start sub_805810C
-sub_805810C:
+	thumb_func_start GrudgeMoveAction
+GrudgeMoveAction:
 	push {r4-r7,lr}
 	adds r6, r0, 0
 	adds r5, r1, 0
@@ -11478,7 +11478,7 @@ _0805814E:
 	bx r1
 	.align 2, 0
 _08058158: .4byte gUnknown_80FD294
-	thumb_func_end sub_805810C
+	thumb_func_end GrudgeMoveAction
 
 	thumb_func_start sub_805815C
 sub_805815C:
@@ -12740,8 +12740,8 @@ _08058AA4: .4byte gUnknown_8106A4C
 _08058AA8: .4byte gUnknown_8106A50
 	thumb_func_end sub_8058A7C
 
-	thumb_func_start sub_8058AAC
-sub_8058AAC:
+	thumb_func_start SkyAttackMoveAction
+SkyAttackMoveAction:
 	push {r4-r7,lr}
 	mov r7, r8
 	push {r7}
@@ -12810,7 +12810,7 @@ _08058B2A:
 	bx r1
 	.align 2, 0
 _08058B38: .4byte gUnknown_80FACC4
-	thumb_func_end sub_8058AAC
+	thumb_func_end SkyAttackMoveAction
 
 	thumb_func_start sub_8058B3C
 sub_8058B3C:
@@ -13804,8 +13804,8 @@ _0805927E:
 	bx r1
 	thumb_func_end sub_80591E4
 
-	thumb_func_start sub_8059290
-sub_8059290:
+	thumb_func_start SkillSwapMoveAction
+SkillSwapMoveAction:
 	push {r4-r7,lr}
 	mov r7, r8
 	push {r7}
@@ -13890,10 +13890,10 @@ _0805932E:
 	.align 2, 0
 _08059338: .4byte gUnknown_203B418
 _0805933C: .4byte gUnknown_80FC888
-	thumb_func_end sub_8059290
+	thumb_func_end SkillSwapMoveAction
 
-	thumb_func_start sub_8059340
-sub_8059340:
+	thumb_func_start SketchMoveAction
+SketchMoveAction:
 	push {r4-r7,lr}
 	mov r7, r10
 	mov r6, r9
@@ -14008,7 +14008,7 @@ _0805940A:
 	.align 2, 0
 _0805941C: .4byte gUnknown_202DE58
 _08059420: .4byte gUnknown_80FE38C
-	thumb_func_end sub_8059340
+	thumb_func_end SketchMoveAction
 
 	thumb_func_start sub_8059424
 sub_8059424:
@@ -14549,8 +14549,8 @@ sub_80597F0:
 	bx r1
 	thumb_func_end sub_80597F0
 
-	thumb_func_start sub_805983C
-sub_805983C:
+	thumb_func_start DiveMoveAction
+DiveMoveAction:
 	push {r4-r7,lr}
 	mov r7, r8
 	push {r7}
@@ -14616,7 +14616,7 @@ _080598B8:
 	bx r1
 	.align 2, 0
 _080598C8: .4byte gUnknown_80FAD2C
-	thumb_func_end sub_805983C
+	thumb_func_end DiveMoveAction
 
 	thumb_func_start sub_80598CC
 sub_80598CC:
@@ -15126,8 +15126,8 @@ sub_8059C80:
 	bx r1
 	thumb_func_end sub_8059C80
 
-	thumb_func_start sub_8059C8C
-sub_8059C8C:
+	thumb_func_start HelpingHandMoveAction
+HelpingHandMoveAction:
 	push {r4-r6,lr}
 	adds r5, r0, 0
 	adds r4, r1, 0
@@ -15163,7 +15163,7 @@ _08059CC6:
 	.align 2, 0
 _08059CD0: .4byte gUnknown_8106A4C
 _08059CD4: .4byte gUnknown_8106A50
-	thumb_func_end sub_8059C8C
+	thumb_func_end HelpingHandMoveAction
 
 	thumb_func_start sub_8059CD8
 sub_8059CD8:
@@ -16432,8 +16432,8 @@ _0805A632:
 _0805A63C: .4byte gUnknown_80F4DD2
 	thumb_func_end sub_805A5E8
 
-	thumb_func_start sub_805A640
-sub_805A640:
+	thumb_func_start SpitUpMoveAction
+SpitUpMoveAction:
 	push {r4-r6,lr}
 	sub sp, 0x4
 	adds r5, r0, 0
@@ -16469,7 +16469,7 @@ _0805A678:
 	bx r1
 	.align 2, 0
 _0805A684: .4byte gUnknown_80FCA3C
-	thumb_func_end sub_805A640
+	thumb_func_end SpitUpMoveAction
 
 	thumb_func_start sub_805A688
 sub_805A688:
@@ -17721,8 +17721,8 @@ sub_805B028:
 	bx r1
 	thumb_func_end sub_805B028
 
-	thumb_func_start sub_805B038
-sub_805B038:
+	thumb_func_start TransformMoveAction
+TransformMoveAction:
 	push {r4-r6,lr}
 	adds r5, r0, 0
 	adds r6, r1, 0
@@ -17751,7 +17751,7 @@ _0805B068:
 	bx r1
 	.align 2, 0
 _0805B070: .4byte gUnknown_80FEFF4
-	thumb_func_end sub_805B038
+	thumb_func_end TransformMoveAction
 
 	thumb_func_start sub_805B074
 sub_805B074:
@@ -17977,8 +17977,8 @@ sub_805B214:
 	bx r1
 	thumb_func_end sub_805B214
 
-	thumb_func_start sub_805B220
-sub_805B220:
+	thumb_func_start TrapperOrbAction
+TrapperOrbAction:
 	push {r4-r6,lr}
 	adds r4, r0, 0
 	adds r5, r1, 0
@@ -18012,7 +18012,7 @@ _0805B252:
 	bx r1
 	.align 2, 0
 _0805B260: .4byte gUnknown_80FC5A8
-	thumb_func_end sub_805B220
+	thumb_func_end TrapperOrbAction
 
 	thumb_func_start sub_805B264
 sub_805B264:
@@ -18297,8 +18297,8 @@ sub_805B454:
 	bx r1
 	thumb_func_end sub_805B454
 
-	thumb_func_start sub_805B464
-sub_805B464:
+	thumb_func_start MimicMoveAction
+MimicMoveAction:
 	push {r4-r7,lr}
 	mov r7, r10
 	mov r6, r9
@@ -18404,7 +18404,7 @@ _0805B524:
 	bx r1
 	.align 2, 0
 _0805B538: .4byte gUnknown_80FDD00
-	thumb_func_end sub_805B464
+	thumb_func_end MimicMoveAction
 
 	thumb_func_start sub_805B53C
 sub_805B53C:
@@ -18864,8 +18864,8 @@ sub_805B884:
 _0805B8AC: .4byte gUnknown_8106A4C
 	thumb_func_end sub_805B884
 
-	thumb_func_start sub_805B8B0
-sub_805B8B0:
+	thumb_func_start SkullBashMoveAction
+SkullBashMoveAction:
 	push {r4-r7,lr}
 	sub sp, 0x4
 	adds r5, r0, 0
@@ -18910,7 +18910,7 @@ _0805B900:
 	bx r1
 	.align 2, 0
 _0805B90C: .4byte gUnknown_80FAFF0
-	thumb_func_end sub_805B8B0
+	thumb_func_end SkullBashMoveAction
 
 	thumb_func_start sub_805B910
 sub_805B910:
@@ -19256,8 +19256,8 @@ sub_805BB98:
 	bx r1
 	thumb_func_end sub_805BB98
 
-	thumb_func_start sub_805BBA8
-sub_805BBA8:
+	thumb_func_start CleanseOrbAction
+CleanseOrbAction:
 	push {r4-r7,lr}
 	mov r7, r8
 	push {r7}
@@ -19358,7 +19358,7 @@ _0805BC60:
 	bx r1
 	.align 2, 0
 _0805BC6C: .4byte gUnknown_80FC920
-	thumb_func_end sub_805BBA8
+	thumb_func_end CleanseOrbAction
 
 	thumb_func_start sub_805BC70
 sub_805BC70:
@@ -19517,8 +19517,8 @@ sub_805BD7C:
 	bx r1
 	thumb_func_end sub_805BD7C
 
-	thumb_func_start sub_805BD88
-sub_805BD88:
+	thumb_func_start TransferOrbAction
+TransferOrbAction:
 	push {r4-r7,lr}
 	mov r7, r10
 	mov r6, r9
@@ -19644,7 +19644,7 @@ _0805BE78:
 	.align 2, 0
 _0805BE88: .4byte gUnknown_202DF98
 _0805BE8C: .4byte gUnknown_80FD450
-	thumb_func_end sub_805BD88
+	thumb_func_end TransferOrbAction
 
 	thumb_func_start sub_805BE90
 sub_805BE90:
@@ -19694,8 +19694,8 @@ sub_805BEC8:
 	bx r1
 	thumb_func_end sub_805BEC8
 
-	thumb_func_start sub_805BED4
-sub_805BED4:
+	thumb_func_start EscapeOrbAction
+EscapeOrbAction:
 	push {r4-r6,lr}
 	adds r4, r0, 0
 	adds r6, r1, 0
@@ -19739,7 +19739,7 @@ _0805BF26:
 	bx r1
 	.align 2, 0
 _0805BF30: .4byte gUnknown_80FD4C4
-	thumb_func_end sub_805BED4
+	thumb_func_end EscapeOrbAction
 
 	thumb_func_start sub_805BF34
 sub_805BF34:
@@ -19750,8 +19750,8 @@ sub_805BF34:
 	bx r1
 	thumb_func_end sub_805BF34
 
-	thumb_func_start sub_805BF40
-sub_805BF40:
+	thumb_func_start TrapbustOrbAction
+TrapbustOrbAction:
 	push {r4-r7,lr}
 	mov r7, r10
 	mov r6, r9
@@ -19908,7 +19908,7 @@ _0805C06A:
 	bx r1
 	.align 2, 0
 _0805C07C: .4byte gUnknown_80FD1CC
-	thumb_func_end sub_805BF40
+	thumb_func_end TrapbustOrbAction
 
 	thumb_func_start sub_805C080
 sub_805C080:
@@ -20209,8 +20209,8 @@ sub_805C2A0:
 	bx r1
 	thumb_func_end sub_805C2A0
 
-	thumb_func_start sub_805C2AC
-sub_805C2AC:
+	thumb_func_start FillInOrbAction
+FillInOrbAction:
 	push {r4-r7,lr}
 	mov r7, r9
 	mov r6, r8
@@ -20356,7 +20356,7 @@ _0805C3CA:
 	bx r1
 	.align 2, 0
 _0805C3D8: .4byte gUnknown_80FD0B8
-	thumb_func_end sub_805C2AC
+	thumb_func_end FillInOrbAction
 
 	thumb_func_start sub_805C3DC
 sub_805C3DC:
diff --git a/asm/code_8097F40.s b/asm/code_8097F40.s
index 5368da6..6392ba9 100644
--- a/asm/code_8097F40.s
+++ b/asm/code_8097F40.s
@@ -5,34 +5,6 @@
 
 	.text
 	
-	thumb_func_start sub_8097F74
-sub_8097F74:
-	push {r4,lr}
-	ldr r4, _08097FA0
-	ldr r0, [r4]
-	movs r1, 0
-	movs r2, 0x64
-	bl memset
-	movs r2, 0
-	ldr r3, _08097FA4
-_08097F86:
-	ldr r0, [r4]
-	adds r0, 0x58
-	adds r0, r2
-	ldrb r1, [r3, 0x2]
-	strb r1, [r0]
-	adds r3, 0x4
-	adds r2, 0x1
-	cmp r2, 0xB
-	ble _08097F86
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08097FA0: .4byte gUnknown_203B498
-_08097FA4: .4byte gExclusivePokemon
-	thumb_func_end sub_8097F74
-
 	thumb_func_start sub_8097FA8
 sub_8097FA8:
 	lsls r0, 24
diff --git a/asm/code_809D148.s b/asm/code_809D148.s
index 2473525..a48ad08 100644
--- a/asm/code_809D148.s
+++ b/asm/code_809D148.s
@@ -1481,7 +1481,7 @@ _0809DEE8:
 	str r0, [r1]
 	add r0, sp, 0x4
 	ldrh r0, [r0, 0x2]
-	bl sub_8011940
+	bl IsEqualtoBGTrack
 	lsls r0, 24
 	cmp r0, 0
 	bne _0809DF06
diff --git a/asm/fatal_system_1.s b/asm/debug.s
index e0f194d..e0f194d 100644
--- a/asm/fatal_system_1.s
+++ b/asm/debug.s
diff --git a/asm/music.s b/asm/music.s
index 0e13f2c..1bec74b 100644
--- a/asm/music.s
+++ b/asm/music.s
@@ -5,276 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_800C074
-sub_800C074:
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	lsls r0, 16
-	lsrs r5, r0, 16
-	mov r8, r5
-	lsls r1, 16
-	lsrs r6, r1, 16
-	ldr r0, _0800C0FC
-	cmp r5, r0
-	bne _0800C08C
-	b _0800C208
-_0800C08C:
-	movs r7, 0x80
-	lsls r7, 1
-	cmp r6, r7
-	bls _0800C096
-	adds r6, r7, 0
-_0800C096:
-	adds r0, r5, 0
-	bl sub_800CACC
-	lsls r0, 24
-	cmp r0, 0
-	bne _0800C0A4
-	b _0800C1B0
-_0800C0A4:
-	adds r0, r5, 0
-	bl sub_800CAE0
-	lsls r0, 16
-	lsrs r7, r0, 16
-	cmp r7, 0x1
-	beq _0800C0B4
-	b _0800C1D0
-_0800C0B4:
-	bl DisableInterrupts
-	lsls r0, 24
-	lsrs r0, 24
-	mov r8, r0
-	ldr r6, _0800C100
-	strh r5, [r6]
-	ldr r4, _0800C104
-	ldrh r0, [r4]
-	adds r2, r0, 0
-	cmp r2, 0
-	bne _0800C144
-	ldr r0, _0800C108
-	ldrh r1, [r0]
-	ldr r0, _0800C10C
-	cmp r1, r0
-	beq _0800C12C
-	ldr r0, _0800C110
-	ldrh r1, [r0]
-	subs r0, r1, 0x1
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x1
-	bhi _0800C120
-	strh r7, [r4]
-	ldr r1, _0800C114
-	movs r0, 0x10
-	strh r0, [r1]
-	ldr r0, _0800C118
-	strb r2, [r0]
-	ldr r0, _0800C11C
-	movs r1, 0x1
-	bl m4aMPlayFadeOutTemporarily
-	b _0800C15E
-	.align 2, 0
-_0800C0FC: .4byte 0x000003e5
-_0800C100: .4byte gUnknown_202D68E
-_0800C104: .4byte gUnknown_202D690
-_0800C108: .4byte gCurrentBGSong
-_0800C10C: .4byte 0x000003e7
-_0800C110: .4byte gBGMusicPlayerState
-_0800C114: .4byte gUnknown_202D692
-_0800C118: .4byte gUnknown_202D694
-_0800C11C: .4byte gUnknown_20008F0
-_0800C120:
-	lsls r0, r1, 16
-	lsrs r0, 16
-	cmp r0, 0x3
-	bne _0800C12C
-	movs r0, 0x2
-	b _0800C15C
-_0800C12C:
-	movs r0, 0x3
-	strh r0, [r4]
-	ldr r0, _0800C140
-	bl m4aMPlayStop
-	ldrh r0, [r6]
-	bl m4aSongNumStart
-	b _0800C15E
-	.align 2, 0
-_0800C140: .4byte gUnknown_20008F0
-_0800C144:
-	subs r0, 0x1
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x1
-	bls _0800C15E
-	ldr r0, _0800C17C
-	bl m4aMPlayStop
-	ldrh r0, [r6]
-	bl m4aSongNumStart
-	movs r0, 0x3
-_0800C15C:
-	strh r0, [r4]
-_0800C15E:
-	ldr r0, _0800C180
-	ldrh r0, [r0]
-	cmp r0, 0x26
-	bgt _0800C184
-	cmp r0, 0x25
-	bge _0800C19A
-	cmp r0, 0x1A
-	blt _0800C1A0
-	cmp r0, 0x1F
-	ble _0800C19A
-	cmp r0, 0x23
-	bgt _0800C1A0
-	cmp r0, 0x22
-	blt _0800C1A0
-	b _0800C19A
-	.align 2, 0
-_0800C17C: .4byte gUnknown_20008F0
-_0800C180: .4byte gCurrentBGSong
-_0800C184:
-	cmp r0, 0x7A
-	beq _0800C19A
-	cmp r0, 0x7A
-	bgt _0800C196
-	cmp r0, 0x77
-	bgt _0800C1A0
-	cmp r0, 0x75
-	blt _0800C1A0
-	b _0800C19A
-_0800C196:
-	cmp r0, 0x7F
-	bne _0800C1A0
-_0800C19A:
-	ldr r1, _0800C1AC
-	movs r0, 0x1
-	strb r0, [r1]
-_0800C1A0:
-	mov r0, r8
-	cmp r0, 0
-	beq _0800C208
-	bl EnableInterrupts
-	b _0800C208
-	.align 2, 0
-_0800C1AC: .4byte gUnknown_202D694
-_0800C1B0:
-	adds r0, r5, 0
-	bl sub_800CAAC
-	lsls r0, 24
-	cmp r0, 0
-	beq _0800C208
-	adds r0, r5, 0
-	bl sub_800CAE0
-	lsls r0, 16
-	lsrs r0, 16
-	lsls r2, r0, 3
-	ldr r1, _0800C1D8
-	adds r4, r2, r1
-	cmp r0, 0x1
-	bhi _0800C1DC
-_0800C1D0:
-	adds r0, r5, 0
-	bl nullsub_20
-	b _0800C208
-	.align 2, 0
-_0800C1D8: .4byte gUnknown_3000FD8
-_0800C1DC:
-	bl DisableInterrupts
-	lsls r0, 24
-	lsrs r5, r0, 24
-	mov r0, r8
-	bl m4aSongNumStart
-	movs r0, 0x1
-	strh r0, [r4]
-	mov r0, r8
-	strh r0, [r4, 0x2]
-	cmp r6, r7
-	bne _0800C1FA
-	movs r0, 0
-	b _0800C1FC
-_0800C1FA:
-	movs r0, 0x1
-_0800C1FC:
-	strb r0, [r4, 0x6]
-	strh r6, [r4, 0x4]
-	cmp r5, 0
-	beq _0800C208
-	bl EnableInterrupts
-_0800C208:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_800C074
-
-	thumb_func_start sub_800C214
-sub_800C214:
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	lsls r0, 16
-	lsrs r5, r0, 16
-	lsls r1, 16
-	lsrs r7, r1, 16
-	movs r0, 0x80
-	lsls r0, 1
-	cmp r7, r0
-	bls _0800C22C
-	adds r7, r0, 0
-_0800C22C:
-	adds r0, r5, 0
-	bl sub_800CACC
-	lsls r0, 24
-	cmp r0, 0
-	bne _0800C286
-	adds r0, r5, 0
-	bl sub_800CAAC
-	lsls r0, 24
-	cmp r0, 0
-	beq _0800C286
-	adds r0, r5, 0
-	bl sub_800CAE0
-	lsls r0, 16
-	lsrs r0, 16
-	ldr r2, _0800C290
-	lsls r1, r0, 1
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r2
-	ldr r1, [r1]
-	mov r8, r1
-	lsls r2, r0, 3
-	ldr r1, _0800C294
-	adds r4, r2, r1
-	cmp r0, 0x1
-	bls _0800C286
-	bl DisableInterrupts
-	lsls r0, 24
-	lsrs r6, r0, 24
-	ldrh r0, [r4, 0x2]
-	cmp r0, r5
-	bne _0800C27E
-	mov r0, r8
-	movs r1, 0xF
-	adds r2, r7, 0
-	bl m4aMPlayVolumeControl
-_0800C27E:
-	cmp r6, 0
-	beq _0800C286
-	bl EnableInterrupts
-_0800C286:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0800C290: .4byte gMPlayTable
-_0800C294: .4byte gUnknown_3000FD8
-	thumb_func_end sub_800C214
-
 	thumb_func_start sub_800C298
 sub_800C298:
 	push {r4-r7,lr}
diff --git a/asm/wonder_mail.s b/asm/wonder_mail.s
index f903140..df22c33 100644
--- a/asm/wonder_mail.s
+++ b/asm/wonder_mail.s
@@ -2393,7 +2393,7 @@ _0802AEE2:
 	ldr r0, [r0]
 	str r0, [r1]
 _0802AEE6:
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	b _0802B2AA
 _0802AEEC:
 	ldr r0, _0802AEF0
@@ -18996,7 +18996,7 @@ _080333DA:
 _080333DC:
 	str r0, [r1]
 _080333DE:
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	b _080338B4
 _080333E4:
 	ldr r0, _080333E8
@@ -26254,7 +26254,7 @@ _08036D44:
 	ldr r1, [r4]
 	str r0, [r1, 0xC]
 _08036D66:
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	b _08036DFA
 	.align 2, 0
 _08036D6C: .4byte gUnknown_203B358
@@ -27375,7 +27375,7 @@ _080376AE:
 	ldr r1, [r4]
 	str r0, [r1, 0x4]
 _080376BE:
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	pop {r4-r6}
 	pop {r0}
 	bx r0
@@ -32681,7 +32681,7 @@ _0803A138:
 	movs r2, 0xB4
 	bl memcpy
 _0803A14C:
-	bl sub_8011854
+	bl xxx_call_start_bg_music
 	b _0803A1AA
 _0803A152:
 	ldr r0, _0803A160
diff --git a/include/music.h b/include/music.h
index 3a83946..8baa030 100644
--- a/include/music.h
+++ b/include/music.h
@@ -1,8 +1,8 @@
 #ifndef GUARD_MUSIC_H
 #define GUARD_MUSIC_H
 
-void sub_800C93C(void);
-void sub_800C9CC(void);
+void StopBGMusicVSync(void);
+void StartBGMusicVSync(void);
 u8 sub_800CA38(u32 songIndex);
 void StartNewBGM(u16 songIndex);
 bool8 IsBGSong(u32 songIndex);
diff --git a/ld_script.txt b/ld_script.txt
index dce23d0..cc185a3 100755
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -78,10 +78,8 @@ SECTIONS {
         src/code_800D090.o(.text);
         asm/code_800D090.o(.text);
         src/code_80118A4.o(.text);
-        asm/code_80118A4.o(.text);
-        src/code_80118A4_1.o(.text);
-        src/fatal_system.o(.text);
-        asm/fatal_system_1.o(.text);
+        src/debug.o(.text);
+        asm/debug.o(.text);
         src/save.o(.text);
         asm/save.o(.text);
         src/save_mid.o(.text);
diff --git a/src/code_800558C.c b/src/code_800558C.c
index 13e3255..8de7dd3 100644
--- a/src/code_800558C.c
+++ b/src/code_800558C.c
@@ -16,58 +16,17 @@ extern void sub_800CC44(s32 r0, s32 r1);
 void sub_80060A8(void)
 {
 
-    bool32 temp;
-    bool32 preload;
-    bool32 preload2;
-
     gUnknown_2026E3C = gUnknown_2026E58;
-
-    preload = gUnknown_2026E54;
-    temp = FALSE;
-    if (!gUnknown_2026E54)
-    {
-        temp = TRUE;
-    }
-    gUnknown_2026E54 = temp;
-
-    preload2 = gUnknown_2026E50;
-    temp = FALSE;
-    if (!gUnknown_2026E50)
-    {
-        temp = TRUE;
-    }
-    gUnknown_2026E50 = temp;
-    
+    gUnknown_2026E54 = !gUnknown_2026E54;
+    gUnknown_2026E50 = !gUnknown_2026E50;
     gUnknown_2026E38 = FALSE;
 }
 
 void sub_80060EC(void)
 {
-    bool32 temp;
-    bool32 preload;
-    bool32 preload2;
-
     gUnknown_2026E3C = gUnknown_2026E58;
-
-    preload = gUnknown_2026E54;
-    temp = FALSE;
-
-    if (!gUnknown_2026E54)
-    {
-        temp = TRUE;
-    }
-    gUnknown_2026E54 = temp;
-
-    
-    preload2 = gUnknown_2026E50;
-    temp = FALSE;
-
-    if (!gUnknown_2026E50)
-    {
-        temp = TRUE;
-    }
-    gUnknown_2026E50 = temp;
-    
+    gUnknown_2026E54 = !gUnknown_2026E54;
+    gUnknown_2026E50 = !gUnknown_2026E50;
     sub_800CC44((gUnknown_2026E4E & (0xF8 << 5)) >> 8, gUnknown_2026E4E & 0x1F);
     gUnknown_2026E38 = TRUE;
 }
diff --git a/src/code_800C9CC.c b/src/code_800C9CC.c
index 28ce10a..99aa827 100644
--- a/src/code_800C9CC.c
+++ b/src/code_800C9CC.c
@@ -8,10 +8,10 @@ extern u8 gUnknown_202D6B9;
 extern u16 gUnknown_202D7FA;
 extern u8 gUnknown_202D7FE;
 
-extern struct BGControlStruct gUnknown_202D698;
-extern struct BGControlStruct gUnknown_202D6A0;
-extern struct BGControlStruct gUnknown_202D6A8;
-extern struct BGControlStruct gUnknown_202D6B0;
+extern struct BGControlStruct gBG0Control;
+extern struct BGControlStruct gBG1Control;
+extern struct BGControlStruct gBG2Control;
+extern struct BGControlStruct gBG3Control;
 
 void ReadKeyInput(struct Inputs *r0)
 {
@@ -93,26 +93,26 @@ void sub_800CC44(s32 r0, s32 r1)
 
 void SetBG0RegOffsets(s32 xoffset, s32 yoffset)
 {
-    gUnknown_202D698.hofs = xoffset;
-    gUnknown_202D698.vofs = yoffset;
+    gBG0Control.hofs = xoffset;
+    gBG0Control.vofs = yoffset;
 }
 
 void SetBG1RegOffsets(s32 xoffset, s32 yoffset)
 {
-    gUnknown_202D6A0.hofs = xoffset;
-    gUnknown_202D6A0.vofs = yoffset;
+    gBG1Control.hofs = xoffset;
+    gBG1Control.vofs = yoffset;
 }
 
 void SetBG2RegOffsets(s32 xoffset, s32 yoffset)
 {
-    gUnknown_202D6A8.hofs = xoffset;
-    gUnknown_202D6A8.vofs = yoffset;
+    gBG2Control.hofs = xoffset;
+    gBG2Control.vofs = yoffset;
 }
 
 void SetBG3RegOffsets(s32 xoffset, s32 yoffset)
 {
-    gUnknown_202D6B0.hofs = xoffset;
-    gUnknown_202D6B0.vofs = yoffset;
+    gBG3Control.hofs = xoffset;
+    gBG3Control.vofs = yoffset;
 }
 
 void SetBGRegOffsets(s32 reg, u32 xoffset, s32 yoffset)
@@ -131,16 +131,16 @@ void SetBGRegXOffset(s32 reg, s32 offset)
     switch (reg) {
         default:
         case 0:
-            gUnknown_202D698.hofs = offset;
+            gBG0Control.hofs = offset;
             break;
         case 1:
-            gUnknown_202D6A0.hofs = offset;
+            gBG1Control.hofs = offset;
             break;
         case 2:
-            gUnknown_202D6A8.hofs = offset;
+            gBG2Control.hofs = offset;
             break;
         case 3:
-            gUnknown_202D6B0.hofs = offset;
+            gBG3Control.hofs = offset;
             break;
     }
 }
@@ -150,16 +150,16 @@ void SetBGRegYOffset(s32 reg, s32 offset)
     switch (reg) {
         default:
         case 0:
-            gUnknown_202D698.vofs = offset;
+            gBG0Control.vofs = offset;
             break;
         case 1:
-            gUnknown_202D6A0.vofs = offset;
+            gBG1Control.vofs = offset;
             break;
         case 2:
-            gUnknown_202D6A8.vofs = offset;
+            gBG2Control.vofs = offset;
             break;
         case 3:
-            gUnknown_202D6B0.vofs = offset;
+            gBG3Control.vofs = offset;
             break;
     }
 }
@@ -167,7 +167,7 @@ void SetBGRegYOffset(s32 reg, s32 offset)
 void sub_800CD64(s32 r0, u8 r1)
 {
     gUnknown_202D7FE = r1;
-    gUnknown_202D6A8.unk2 = r0 ? 0x8000 : 0; 
+    gBG2Control.unk2 = r0 ? 0x8000 : 0; 
 }
 
 void SetBGOBJEnableFlags(u32 mask)
diff --git a/src/code_800D090.c b/src/code_800D090.c
index da82789..b263d30 100644
--- a/src/code_800D090.c
+++ b/src/code_800D090.c
@@ -2,11 +2,20 @@
 #include <stdio.h>
 #include "gba/gba.h"
 #include "config.h"
+#include "global.h"
 
 
 extern void SoundBiasReset(void);
 extern void SoundBiasSet(void);
 
+struct unkStruct_202DB60
+{
+    u32 unk0;
+    u32 unk4;
+};
+
+extern struct unkStruct_202DB60 gUnknown_202DB60;
+
 void Hang(void)
 {
     while(1)
@@ -62,7 +71,6 @@ void sub_800D098(void)
 
     REG_IME = 1;
 
-    // Good after here
     while(REG_VCOUNT <= 159){}
     REG_DISPCNT = dispcnt_save; // restore DISPCNT
     while(REG_KEYINPUT != 0x3ff){} // All buttons
@@ -75,3 +83,53 @@ void sub_800D158(u8 *buffer, const char *text, ...)
     vsprintf(buffer, text, vArgv);
     va_end(vArgv);
 }
+
+// Unused
+void sub_800D16C(const char *text, ...)
+{
+    char buffer[1024];
+    va_list vArgv;
+    va_start(vArgv, text);
+    vsprintf(buffer, text, vArgv);
+    va_end(vArgv);
+}
+
+// Unused
+void sub_800D10A(const char *r0, u32 r1, u32 r2, u32 r3, ...)
+{
+}
+
+void nullsub_183(void)
+{
+}
+
+void nullsub_188(void)
+{
+}
+
+void nullsub_184(void)
+{
+}
+
+u32 sub_800D1B4(void)
+{
+    return 0;
+}
+
+u32 sub_800D1B8(u32 r0, u32 r1, u32 r2)
+{
+    return r2;
+}
+
+void nullsub_187(void)
+{
+}
+
+u32 sub_800D1C0(void)
+{
+    if(gUnknown_202DB60.unk0 != 2)
+        return 0;
+    if(gUnknown_202DB60.unk4 != 2)
+        return 0;
+    return 1;
+}
diff --git a/src/code_80118A4.c b/src/code_80118A4.c
index 2cb450d..03859b0 100644
--- a/src/code_80118A4.c
+++ b/src/code_80118A4.c
@@ -1,12 +1,15 @@
+#include <stdarg.h>
+#include <stdio.h>
 #include "global.h"
 #include "music.h"
 #include "constants/bg_music.h"
 #include "time.h"
 #include "bg.h"
 #include "input.h"
+#include "config.h"
+
 
 void sub_8011924(void);
-void nullsub_26(void);
 
 extern u8 sub_80023E4(u8);
 extern void sub_800BF48(u16 r0);
@@ -18,15 +21,6 @@ extern void sub_800C074(u16 r0, u16 r1);
 extern void sub_800C298(u16 r0);
 extern u8 sub_800C5D0(u16 r0);
 
-extern void nullsub_27(void);
-extern void nullsub_29(void);
-extern void nullsub_30(void);
-extern void nullsub_31(void);
-extern void nullsub_32(void);
-extern void nullsub_28(void);
-
-extern int sprintf(char *, const char *, ...);
-
 extern struct PlayTimeStruct *gUnknown_203B47C;
 
 struct UnkSaveStruct1
@@ -50,23 +44,12 @@ struct UnkBgStruct
 };
 extern struct UnkBgStruct *gUnknown_203B0E4;
 
-struct DebugLocation
-{
-    char *file;
-    u32 line;
-    char *func;
-};
-
 
 extern u16 gUnknown_80D4144[];
 extern s16 gUnknown_202DE20;
 extern s16 gUnknown_202DE22;
 extern s16 gUnknown_202DE24;
 extern u32 gUnknown_202DE1C;
-extern u32 gUnknown_203B14C;
-extern const char gNotEntryText[];
-extern const char gFuncFileLineString[];
-extern const char gFuncFileLineStringWPrefix[];
 
 void nullsub_8(u32);
 void sub_8005838(u32, u32);
@@ -114,32 +97,23 @@ void sub_801169C(void)
 void sub_8011760(void)
 {
     if(sub_80023E4(0xD) != 0)
-    {
         StartNewBGM(MUS_WORLD_CALAMITY);
-        return;
-    }
-    if(sub_80023E4(0xC) != 0)
-    {
+    else if(sub_80023E4(0xC) != 0)
         StartNewBGM(MUS_POKEMON_SQUARE);
-    }
 }
 
 void sub_801178C(void)
 {
     if(sub_80023E4(0xD) != 0)
-    {
         StartNewBGM(MUS_WORLD_CALAMITY);
-        return;
-    }
-    StartNewBGM(MUS_POKEMON_SQUARE);
+    else
+        StartNewBGM(MUS_POKEMON_SQUARE);
 }
 
 void sub_80117AC(void)
 {
     if(sub_80023E4(0xD) == 0)
-    {
         sub_800BFD0(0x1E);
-    }
 }
 
 void sub_80117C4(void)
@@ -149,17 +123,19 @@ void sub_80117C4(void)
 
 void sub_80117D0(void)
 {
-    sub_800C074(0x97 << 1, 0x80 << 1);
+    sub_800C074(0x97 << 1, 256);
 }
 
+// Some sound effect
 void sub_80117E4(void)
 {
-    sub_800C074(0x12f, 0x80 << 1);
+    sub_800C074(303, 256);
 }
 
+// Some sound effect
 void sub_80117F8(void)
 {
-    sub_800C074(0x12d, 0x80 << 1);
+    sub_800C074(301, 256);
 }
 
 void sub_801180C(void)
@@ -172,15 +148,15 @@ void sub_801180C(void)
 
 void sub_8011830(void)
 {
-    sub_800C93C();
+    StopBGMusicVSync();
     gUnknown_202DE20 = 0;
     gUnknown_202DE22 = 0;
     gUnknown_202DE24 = 0;
 }
 
-void sub_8011854(void)
+void xxx_call_start_bg_music(void)
 {
-    sub_800C9CC();
+    StartBGMusicVSync();
 }
 
 void sub_8011860(void)
@@ -238,40 +214,40 @@ void sub_8011930(u16 r0)
     sub_800BFD0(r0);
 }
 
-u32 sub_8011940(u16 r0)
+u32 IsEqualtoBGTrack(u16 songIndex)
 {
     u32 temp;
     temp = GetCurrentBGSong();
 
-    if(r0 == 999)
+    if(songIndex == 999)
         return temp != 999;
 
-    return temp == r0;
+    return temp == songIndex;
 }
 
-void sub_8011974(u16 r0, u16 r1)
+void sub_8011974(u16 songIndex, u16 r1)
 {
-    sub_800C074(r0, r1);
+    sub_800C074(songIndex, r1);
 }
 
-void sub_8011988(u16 r0)
+void sub_8011988(u16 songIndex)
 {
-    sub_800C074(r0, 0x80 << 1);
+    sub_800C074(songIndex, 0x80 << 1);
 }
 
-void sub_801199C(u16 r0)
+void sub_801199C(u16 songIndex)
 {
-    sub_800C298(r0);
+    sub_800C298(songIndex);
 }
 
-void sub_80119AC(u16 r0, u16 r1)
+void sub_80119AC(u16 songIndex, u16 r1)
 {
-    sub_800C3F8(r0, r1);
+    sub_800C3F8(songIndex, r1);
 }
 
-u8 sub_80119C0(u16 r0)
+u8 sub_80119C0(u16 songIndex)
 {
-    return sub_800C5D0(r0);
+    return sub_800C5D0(songIndex);
 }
 
 void sub_80119D4(u32 r0)
@@ -294,41 +270,3 @@ void sub_8011A2C(u32 r0)
 {
     gUnknown_202DE1C = r0;
 }
-
-void NDS_DebugInit(void)
-{
-    nullsub_26();
-    nullsub_27();
-    nullsub_29();
-    nullsub_30();
-    nullsub_31();
-    nullsub_32();
-    nullsub_28();
-    gUnknown_203B14C = 1; // Maybe a flag saying Debug is on?
-}
-
-void nullsub_25(void)
-{
-}
-
-void nullsub_26(void)
-{
-}
-
-// Unused
-void PrintFuncFileLineOrNotEntry(char * r0, struct DebugLocation *r1)
-{
-    if(r1 != 0)
-    {
-        sprintf(r0, gFuncFileLineString, r1->func, r1->file, r1->line);
-    }
-    else
-    {
-        sprintf(r0, gNotEntryText);
-    }
-}
-
-void PrintFuncFileLine(char *buf, struct DebugLocation *loc, char* prefix)
-{
-    sprintf(buf, gFuncFileLineStringWPrefix, prefix, loc->func, loc->file, loc->line);
-}
diff --git a/src/code_80118A4_1.c b/src/code_80118A4_1.c
index 89f4db5..e69de29 100644
--- a/src/code_80118A4_1.c
+++ b/src/code_80118A4_1.c
@@ -1,55 +0,0 @@
-#include "global.h"
-
-extern u8 gUnknown_203B150;
-
-void PrintFuncFileLine(char *r0, const char *r1, ...);
-extern const char gUnknown_80D421C;
-
-void nullsub_199(void)
-{
-}
-
-void nullsub_27(void)
-{
-}
-
-void sub_8011B08(void)
-{
-    gUnknown_203B150 = 1;
-}
-
-void sub_8011B14(void)
-{
-    gUnknown_203B150 = 0;
-}
-
-u8 sub_8011B20(void)
-{
-    gUnknown_203B150 = !gUnknown_203B150;
-    return gUnknown_203B150;
-}
-
-// unused
-u8 sub_8011B3C(void)
-{
-    return gUnknown_203B150;
-}
-
-// unused
-void nullsub_137(void)
-{
-
-}
-
-// TODO merge with fatal_system
-void FatalErrorPrintFuncFileLine(const char *r0, const char *r1)
-{
-    char buf[0x100];
-    if(r0 != 0){
-        PrintFuncFileLine(buf, r1, r0);
-    }
-    else
-    {
-        PrintFuncFileLine(buf, r1, &gUnknown_80D421C);
-    }
-}
diff --git a/src/code_808EAB0.c b/src/code_808EAB0.c
index bf80687..44be84e 100644
--- a/src/code_808EAB0.c
+++ b/src/code_808EAB0.c
@@ -119,16 +119,10 @@ void sub_808EB48(u8 *r0, s32 r1)
 
 bool8 sub_808EB7C(s32 r0, u8 r1)
 {
-    u8 return_var;
     if(r1 == 0)
     {
         return FALSE;
     }
 
-    return_var = FALSE;
-    if(gUnknown_810A390[r1] <= r0)
-    {
-        return_var = TRUE;
-    }
-    return return_var;
+    return gUnknown_810A390[r1] <= r0;
 }
diff --git a/src/code_8097F40.c b/src/code_8097F40.c
index 94d271c..6775965 100644
--- a/src/code_8097F40.c
+++ b/src/code_8097F40.c
@@ -1,4 +1,13 @@
 #include "global.h"
+#define NUM_EXCLUSIVE_POKEMON 12
+
+struct ExclusivePokemon
+{
+    u16 poke_id;
+    bool8 in_rrt; // red rescue team
+    bool8 in_brt; // blue rescue team
+};
+extern struct ExclusivePokemon gExclusivePokemon[];
 
 extern u8 gUnknown_810ACC0[];
 extern u8 *gUnknown_203B498;
@@ -6,14 +15,7 @@ extern u8 gUnknown_2039840;
 
 bool8 sub_8097F40(u32 r0)
 {
-    bool8 temp;
-    temp = FALSE;
-    if(gUnknown_810ACC0[r0] == 2)
-    {
-        temp = TRUE;
-    }
-    return temp;
-
+    return gUnknown_810ACC0[r0] == 2;
 }
 
 void sub_8097F5C(void)
@@ -26,3 +28,45 @@ u8 *sub_8097F6C(void)
     return &gUnknown_2039840;
 }
 
+#ifdef NONMATCHING
+void sub_8097F74(void)
+{
+    s32 counter;
+    memset(gUnknown_203B498, 0, 0x64);
+    for(counter = 0; counter < NUM_EXCLUSIVE_POKEMON; counter++)
+    {
+        // TODO fix switching of addition statements (when it figures out the index)
+        gUnknown_203B498[counter + 0x58] = gExclusivePokemon[counter].in_rrt;
+    }
+}
+#else
+NAKED
+void sub_8097F74(void)
+{
+	asm_unified("\tpush {r4,lr}\n"
+	"\tldr r4, _08097FA0\n"
+	"\tldr r0, [r4]\n"
+	"\tmovs r1, 0\n"
+	"\tmovs r2, 0x64\n"
+	"\tbl memset\n"
+	"\tmovs r2, 0\n"
+	"\tldr r3, _08097FA4\n"
+"_08097F86:\n"
+	"\tldr r0, [r4]\n"
+	"\tadds r0, 0x58\n"
+	"\tadds r0, r2\n"
+	"\tldrb r1, [r3, 0x2]\n"
+	"\tstrb r1, [r0]\n"
+	"\tadds r3, 0x4\n"
+	"\tadds r2, 0x1\n"
+	"\tcmp r2, 0xB\n"
+	"\tble _08097F86\n"
+	"\tpop {r4}\n"
+	"\tpop {r0}\n"
+	"\tbx r0\n"
+	"\t.align 2, 0\n"
+"_08097FA0: .4byte gUnknown_203B498\n"
+"_08097FA4: .4byte gExclusivePokemon");
+
+}
+#endif
diff --git a/src/debug.c b/src/debug.c
new file mode 100644
index 0000000..4482df1
--- /dev/null
+++ b/src/debug.c
@@ -0,0 +1,198 @@
+#include <stdarg.h>
+#include <stdio.h>
+#include "gba/gba.h"
+#include "config.h"
+#include "debug.h"
+
+extern void Hang();
+
+extern u8 gUnknown_203B150;
+
+extern bool32 gNDS_DebugEnabled;
+
+extern const char gUnknown_80D421C[];
+extern const char gNotMountText[];
+extern const char gNotEntryText[];
+extern const char gFuncFileLineString[];
+extern const char gFuncFileLineStringWPrefix[];
+extern const char gFuncFileLineString2[];
+
+void NDS_DebugInit(void)
+{
+    nullsub_26();
+    nullsub_27();
+    nullsub_29();
+    nullsub_30();
+    nullsub_31();
+    nullsub_32();
+    nullsub_28();
+    gNDS_DebugEnabled = TRUE;
+}
+
+void nullsub_25(void)
+{
+}
+
+void nullsub_26(void)
+{
+}
+
+// Unused
+void PrintFuncFileLineOrNotEntry(char * buf, struct DebugLocation *debug)
+{
+    if(debug != NULL)
+    {
+        sprintf(buf, gFuncFileLineString, debug->func, debug->file, debug->line);
+    }
+    else
+    {
+        sprintf(buf, gNotEntryText);
+    }
+}
+
+void PrintFuncFileLine(char *buf, struct DebugLocation *loc, const char* prefix)
+{
+    sprintf(buf, gFuncFileLineStringWPrefix, prefix, loc->func, loc->file, loc->line);
+}
+
+void PrintMessageWithFuncFileLine(u8 *buffer, struct DebugLocation *debug, const char *text, ...)
+{
+    va_list vArgv;
+    u32 length;
+
+    va_start(vArgv, text);
+    vsprintf(buffer, text, vArgv);
+    length = strlen(buffer);
+    sprintf(&buffer[length], gFuncFileLineString2, debug->func, debug->file, debug->line);
+    va_end(vArgv);
+}
+
+void nullsub_199(void)
+{
+}
+
+void nullsub_27(void)
+{
+}
+
+void sub_8011B08(void)
+{
+    gUnknown_203B150 = 1;
+}
+
+void sub_8011B14(void)
+{
+    gUnknown_203B150 = 0;
+}
+
+u8 sub_8011B20(void)
+{
+    gUnknown_203B150 = !gUnknown_203B150;
+    return gUnknown_203B150;
+}
+
+// unused
+u8 sub_8011B3C(void)
+{
+    return gUnknown_203B150;
+}
+
+// unused
+void nullsub_137(void)
+{
+
+}
+
+void FatalErrorPrintFuncFileLine(const char *r0, struct DebugLocation *debug)
+{
+    char buf[0x100];
+    if(r0 != NULL){
+        PrintFuncFileLine(buf, debug, r0);
+    }
+    else
+    {
+        PrintFuncFileLine(buf, debug, gUnknown_80D421C);
+    }
+}
+
+void FatalErrorFormatMessage(const char *text, ...)
+{
+    char bufPrint[0x100];
+    va_list vArgv;
+    va_start(vArgv, text);
+    vsprintf(bufPrint, text, vArgv);
+    va_end(vArgv);
+}
+
+
+void sub_8011B88(const char *text, ...)
+{
+    char bufPrint[0x100];
+    va_list vArgv;
+    va_start(vArgv, text);
+    vsprintf(bufPrint, text, vArgv);
+    va_end(vArgv);
+}
+
+void nullsub_28(void)
+{
+}
+
+u32 sub_8011BA4(void)
+{
+    return 0;
+}
+
+// Unused
+u32 sub_8011BA8(void)
+{
+    return 0;
+}
+
+// Unused
+const char *sub_8011BAC(void)
+{
+    return gNotMountText;
+}
+
+// Unused
+void UnusedHang(void)
+{
+    Hang();
+}
+
+void Log(u8 *buffer, const char *text, ...)
+{
+    va_list vArgv;
+    va_start(vArgv, text);
+    va_end(vArgv);
+}
+
+// Unused
+void sub_8011BC8(u32 r0, u32 r1, u32 r2, ...)
+{
+    va_list vArgv;
+    va_start(vArgv, r2);
+    va_end(vArgv);
+}
+
+void nullsub_29()
+{
+}
+
+void nullsub_30()
+{
+}
+
+void nullsub_31()
+{
+}
+
+void nullsub_32()
+{
+}
+
+void FatalErrorHang()
+{
+    Hang();
+}
diff --git a/src/fatal_system.c b/src/fatal_system.c
deleted file mode 100644
index 31c430e..0000000
--- a/src/fatal_system.c
+++ /dev/null
@@ -1,89 +0,0 @@
-#include <stdarg.h>
-#include <stdio.h>
-#include "gba/gba.h"
-#include "config.h"
-
-extern const char gNotMountText;
-extern void Hang();
-
-void FatalErrorFormatMessage(const char *text, ...)
-{
-    char bufPrint[0x100];
-    va_list vArgv;
-    va_start(vArgv, text);
-    vsprintf(bufPrint, text, vArgv);
-    va_end(vArgv);
-}
-
-
-void sub_8011B88(const char *text, ...)
-{
-    char bufPrint[0x100];
-    va_list vArgv;
-    va_start(vArgv, text);
-    vsprintf(bufPrint, text, vArgv);
-    va_end(vArgv);
-}
-
-void nullsub_28(void)
-{
-}
-
-u32 sub_8011BA4(void)
-{
-    return 0;
-}
-
-// Unused
-u32 sub_8011BA8(void)
-{
-    return 0;
-}
-
-// Unused
-const char *sub_8011BAC(void)
-{
-    return &gNotMountText;
-}
-
-// Unused
-void UnusedHang(void)
-{
-    Hang();
-}
-
-void Log(u8 *buffer, const char *text, ...)
-{
-    va_list vArgv;
-    va_start(vArgv, text);
-    va_end(vArgv);
-}
-
-// Unused
-void sub_8011BC8(u32 r0, u32 r1, u32 r2, ...)
-{
-    va_list vArgv;
-    va_start(vArgv, r2);
-    va_end(vArgv);
-}
-
-void nullsub_29()
-{
-}
-
-void nullsub_30()
-{
-}
-
-void nullsub_31()
-{
-}
-
-void nullsub_32()
-{
-}
-
-void FatalErrorHang()
-{
-    Hang();
-}
diff --git a/src/friend_area.c b/src/friend_area.c
index 445a1cf..8435bb1 100644
--- a/src/friend_area.c
+++ b/src/friend_area.c
@@ -18,14 +18,6 @@ struct unkStruct_203B45C
     u8 unk29[0x2f];
 };
 
-struct unkFriendAreaStruct
-{
-    // size: 0x18
-    u32 unk0;
-    u32 unk4;
-    u32 padding[4];
-};
-
 extern struct unkStruct_203B45C gUnknown_203B45C[];
 
 extern bool8 *gFriendAreas;
@@ -622,75 +614,20 @@ void sub_8092558(u8 *buffer, u8 index)
     sub_800D158(buffer, &gUnknown_81098A4, gFriendAreaNames[index]);
 }
 
-#ifdef NONMATCHING
 void sub_8092578(u8 *buffer, u8 index, u8 r2)
 {
     // I think this is when we buy the friend area from wigglytuff
-    struct unkFriendAreaStruct temp;
+    u32 temp[5];
     if(r2)
     {
-        sub_8090FEC(gFriendAreaSettings[index].price, &(temp.unk4), 1);
-        // TODO: There's some stack storage here in the middle calling this func
-        //         add     r0, sp, 0x4
-        //          str     r0, [sp] 
-        //temp.unk0 = temp.unk4;
-        sub_800D158(buffer, &gUnknown_81098AC, gFriendAreaNames[index], 96);
+        sub_8090FEC(gFriendAreaSettings[index].price, (&temp[0]), 1);
+        sub_800D158(buffer, &gUnknown_81098AC, gFriendAreaNames[index], 96, temp);
     }
     else
     {
         strcpy(buffer, gFriendAreaNames[index]);
     }
 }
-#else
-NAKED void sub_8092578(u8 *buffer, u8 index, u8 r2)
-{
-        asm_unified("\tpush {r4,r5,lr}\n"
-	"\tsub sp, 0x18\n"
-	"\tadds r5, r0, 0\n"
-	"\tlsls r1, 24\n"
-	"\tlsrs r4, r1, 24\n"
-	"\tlsls r2, 24\n"
-	"\tcmp r2, 0\n"
-	"\tbeq _080925C0\n"
-	"\tldr r0, _080925B4\n"
-	"\tlsls r1, r4, 3\n"
-	"\tadds r0, 0x4\n"
-	"\tadds r1, r0\n"
-	"\tldr r0, [r1]\n"
-	"\tadd r1, sp, 0x4\n"
-	"\tmovs r2, 0x1\n"
-	"\tbl sub_8090FEC\n"
-	"\tldr r1, _080925B8\n"
-	"\tldr r2, _080925BC\n"
-	"\tlsls r0, r4, 2\n"
-	"\tadds r0, r2\n"
-	"\tldr r2, [r0]\n"
-	"\tadd r0, sp, 0x4\n"
-	"\tstr r0, [sp]\n"
-	"\tadds r0, r5, 0\n"
-	"\tmovs r3, 0x60\n"
-	"\tbl sub_800D158\n"
-	"\tb _080925CE\n"
-	"\t.align 2, 0\n"
-"\t_080925B4: .4byte gFriendAreaSettings\n"
-"\t_080925B8: .4byte gUnknown_81098AC\n"
-"\t_080925BC: .4byte gFriendAreaNames\n"
-"\t_080925C0:\n"
-	"\tldr r0, _080925D8\n"
-	"\tlsls r1, r4, 2\n"
-	"\tadds r1, r0\n"
-	"\tldr r1, [r1]\n"
-	"\tadds r0, r5, 0\n"
-	"\tbl strcpy\n"
-"\t_080925CE:\n"
-	"\tadd sp, 0x18\n"
-	"\tpop {r4,r5}\n"
-	"\tpop {r0}\n"
-	"\tbx r0\n"
-	"\t.align 2, 0\n"
-"\t_080925D8: .4byte gFriendAreaNames");
-}
-#endif
 
 u32 GetFriendAreaDescription(u8 index)
 {
diff --git a/src/friend_area_1.c b/src/friend_area_1.c
index ae04cdf..9a40e2c 100644
--- a/src/friend_area_1.c
+++ b/src/friend_area_1.c
@@ -17,10 +17,8 @@ u32 sub_80927A8(u32 r0, u32 r1)
     sub_809486C(temp, r0, r1);
     for(counter = 0; counter < NUM_FRIEND_AREAS; counter++)
     {
-        // TODO moves into R1 for the load else it matches
-        if(!gFriendAreas[counter])
-            temp[4] = gFriendAreas[counter];
-        else
+        // TODO fix one line diff of storing into temp[4]
+        if(gFriendAreas[counter])
             temp[4] = -1;
         sub_809488C(temp, &(temp[4]), 1);
     }
diff --git a/src/music.c b/src/music.c
index 8f02775..701fd3f 100644
--- a/src/music.c
+++ b/src/music.c
@@ -32,7 +32,7 @@ bool8 sub_800CAAC(u32);
 bool8 sub_800CACC(u32);
 u16 sub_800CAE0(u16);
 
-void sub_800C93C(void)
+void StopBGMusicVSync(void)
 {
     bool8 interrupt_flag;
     u16 temp;
@@ -50,7 +50,7 @@ void sub_800C93C(void)
             {
                 if(gBGMusicPlayerState == 2)
                 {
-                    gUnknown_202D694 = gUnknown_202D690;
+                    gUnknown_202D694 = 0;
                 }
                 else if(gBGMusicPlayerState == 1)
                 {
@@ -68,7 +68,7 @@ void sub_800C93C(void)
     }
 }
 
-void sub_800C9CC(void)
+void StartBGMusicVSync(void)
 {
     bool8 interrupt_flag = DisableInterrupts();
     m4aSoundVSyncOn();
diff --git a/src/music_pre.c b/src/music_pre.c
index 42a8cb0..5c0589a 100644
--- a/src/music_pre.c
+++ b/src/music_pre.c
@@ -11,13 +11,17 @@ extern void SoundBiasSet();
 extern void SetInterruptFlag(u16);
 extern void nullsub_25();
 extern void nullsub_18();
+extern void UpdateSound();
+extern void UpdateInput();
 
 extern void sub_800C298(u16 r0);
 
 typedef void (*IntrCallback)(void);
 extern IntrCallback gUnknown_202D5F0[];
 
+extern struct MusicPlayerInfo gUnknown_20008F0; // BGM??
 extern u32 gUnknown_203B0A0;
+extern u32 gUnknown_203B0A4;
 extern u16 gBGMusicPlayerState;
 extern u16 gCurrentBGSong;
 extern u16 gUnknown_202D68C;
@@ -33,20 +37,19 @@ extern u8 gUnknown_203B09A;
 struct unkStruct_3000FD8
 {
     u16 unk0;
-    u16 unk2;
+    u16 songIndex;
     u16 unk4;
     u8 unk6;
-    u8 padding;
 };
 
 extern struct unkStruct_3000FD8 gUnknown_3000FD8[8];
 
 extern u8 gUnknown_202D7FE;
 extern u16 gUnknown_202D7FC;
-extern struct BGControlStruct gUnknown_202D698;
-extern struct BGControlStruct gUnknown_202D6A0;
-extern struct BGControlStruct gUnknown_202D6A8;
-extern struct BGControlStruct gUnknown_202D6B0;
+extern struct BGControlStruct gBG0Control;
+extern struct BGControlStruct gBG1Control;
+extern struct BGControlStruct gBG2Control;
+extern struct BGControlStruct gBG3Control;
 
 void sub_800BF80(void);
 void xxx_update_bg_sound_input(void);
@@ -219,18 +222,18 @@ void UpdateBGControlRegisters(void)
         BG[3] = 3;
     }
 
-    REG_BG0HOFS = gUnknown_202D698.hofs;
-    REG_BG0VOFS = gUnknown_202D698.vofs;
-    REG_BG1HOFS = gUnknown_202D6A0.hofs;
-    REG_BG1VOFS = gUnknown_202D6A0.vofs;
-    REG_BG2HOFS = gUnknown_202D6A8.hofs;
-    REG_BG2VOFS = gUnknown_202D6A8.vofs;
-    REG_BG3HOFS = gUnknown_202D6B0.hofs;
-    REG_BG3VOFS = gUnknown_202D6B0.vofs;
+    REG_BG0HOFS = gBG0Control.hofs;
+    REG_BG0VOFS = gBG0Control.vofs;
+    REG_BG1HOFS = gBG1Control.hofs;
+    REG_BG1VOFS = gBG1Control.vofs;
+    REG_BG2HOFS = gBG2Control.hofs;
+    REG_BG2VOFS = gBG2Control.vofs;
+    REG_BG3HOFS = gBG3Control.hofs;
+    REG_BG3VOFS = gBG3Control.vofs;
 
     REG_BG0CNT = BG[0] | 0xB0 << 6;
     REG_BG1CNT = BG[1] | 0xB4 << 6;
-    if(gUnknown_202D6A8.unk2 == 0x80 << 8)
+    if(gBG2Control.unk2 == 0x80 << 8)
     {
         REG_BG2CNT = BG[2] | 0x2e08;
     }
@@ -276,7 +279,7 @@ void sub_800BD08(void)
     while(counter >= 0)
     {
         preload->unk0 = zero2;
-        preload->unk2 = 0x3e5;
+        preload->songIndex = 0x3e5;
         preload->unk4 = zero2;
         preload->unk6 = zero;
         counter--;
@@ -449,3 +452,340 @@ u16 GetCurrentBGSong(void)
 {
     return gCurrentBGSong;
 }
+
+#ifdef NONMATCHING
+void sub_800C074(u16 SongIndex,u16 param_2)
+{
+  bool8 interrupt_flag;
+  u16 msVar;
+  struct unkStruct_3000FD8 *preload;
+
+  if (SongIndex == 0x3e5)
+    return;
+  if (0x100 < param_2)
+    param_2 = 0x100;
+
+  if (sub_800CACC(SongIndex)) 
+  {
+    msVar = sub_800CAE0(SongIndex);
+    if (msVar == 1) {
+      interrupt_flag = DisableInterrupts();
+      gUnknown_202D68E = SongIndex;
+      if(gUnknown_202D690 == 0)
+      {
+        if (gCurrentBGSong != 999) 
+        {
+            if ((u16)(gBGMusicPlayerState - 1U) < 2) 
+            {
+                gUnknown_202D690 = msVar;
+                gUnknown_202D692 = 16;
+                gUnknown_202D694 = 0;
+                m4aMPlayFadeOutTemporarily(&gUnknown_20008F0,1);
+            }
+            else 
+            {
+                if (gBGMusicPlayerState == 3)
+                    gUnknown_202D690 = 2;
+                else
+                {
+                    gUnknown_202D690 = 3;
+                    m4aMPlayStop(&gUnknown_20008F0);
+                    m4aSongNumStart(gUnknown_202D68E);
+                }
+            }
+        }
+      }
+      else
+      {
+        if (1 < (u16)(gUnknown_202D690 - 1U)) 
+        {
+            m4aMPlayStop(&gUnknown_20008F0);
+            m4aSongNumStart(gUnknown_202D68E);
+            gUnknown_202D690 = 3;
+        }
+      }
+      switch(gCurrentBGSong)
+      {
+        case 26: // 0x1A
+        case 27: // 0x1B
+        case 28: // 0x1C
+        case 29: // 0x1D
+        case 30: // 0x1E
+        case 31: // 0x1F
+        case 34: // 0x22
+        case 35: // 0x23
+        case 37: // 0x25
+        case 38: // 0x26
+        case 117: // 0x75
+        case 118: // 0x76
+        case 119: // 0x77
+        case 122: // 0x7A
+        case 127: // 0x7F
+            gUnknown_202D694 = 1;
+            break;
+        default:
+            break;
+      }
+      if (interrupt_flag)
+        EnableInterrupts();
+    }
+    else
+    {
+        nullsub_20(SongIndex);
+    }
+  }
+  else
+  {
+    if (!sub_800CAAC(SongIndex))
+      return;
+    msVar = sub_800CAE0(SongIndex);
+    preload = &gUnknown_3000FD8[msVar]; // need to load this before comparison to match
+    if (msVar <= 1)
+        nullsub_20(SongIndex);
+    else
+    {
+      interrupt_flag = DisableInterrupts();
+      m4aSongNumStart(SongIndex);
+      preload->unk0 = 1;
+      preload->songIndex = SongIndex;
+      // TODO fix this comparison
+      // Generates eor/neg/lsr
+      preload->unk6 = param_2 != 0x100;
+      preload->unk4 = param_2;
+      if (interrupt_flag)
+        EnableInterrupts();
+    }
+  }
+}
+#else
+NAKED
+void sub_800C074(u16 SongIndex, u16 param_2)
+{
+	asm_unified("\tpush {r4-r7,lr}\n"
+	"\tmov r7, r8\n"
+	"\tpush {r7}\n"
+	"\tlsls r0, 16\n"
+	"\tlsrs r5, r0, 16\n"
+	"\tmov r8, r5\n"
+	"\tlsls r1, 16\n"
+	"\tlsrs r6, r1, 16\n"
+	"\tldr r0, _0800C0FC\n"
+	"\tcmp r5, r0\n"
+	"\tbne _0800C08C\n"
+	"\tb _0800C208\n"
+"_0800C08C:\n"
+	"\tmovs r7, 0x80\n"
+	"\tlsls r7, 1\n"
+	"\tcmp r6, r7\n"
+	"\tbls _0800C096\n"
+	"\tadds r6, r7, 0\n"
+"_0800C096:\n"
+	"\tadds r0, r5, 0\n"
+	"\tbl sub_800CACC\n"
+	"\tlsls r0, 24\n"
+	"\tcmp r0, 0\n"
+	"\tbne _0800C0A4\n"
+	"\tb _0800C1B0\n"
+"_0800C0A4:\n"
+	"\tadds r0, r5, 0\n"
+	"\tbl sub_800CAE0\n"
+	"\tlsls r0, 16\n"
+	"\tlsrs r7, r0, 16\n"
+	"\tcmp r7, 0x1\n"
+	"\tbeq _0800C0B4\n"
+	"\tb _0800C1D0\n"
+"_0800C0B4:\n"
+	"\tbl DisableInterrupts\n"
+	"\tlsls r0, 24\n"
+	"\tlsrs r0, 24\n"
+	"\tmov r8, r0\n"
+	"\tldr r6, _0800C100\n"
+	"\tstrh r5, [r6]\n"
+	"\tldr r4, _0800C104\n"
+	"\tldrh r0, [r4]\n"
+	"\tadds r2, r0, 0\n"
+	"\tcmp r2, 0\n"
+	"\tbne _0800C144\n"
+	"\tldr r0, _0800C108\n"
+	"\tldrh r1, [r0]\n"
+	"\tldr r0, _0800C10C\n"
+	"\tcmp r1, r0\n"
+	"\tbeq _0800C12C\n"
+	"\tldr r0, _0800C110\n"
+	"\tldrh r1, [r0]\n"
+	"\tsubs r0, r1, 0x1\n"
+	"\tlsls r0, 16\n"
+	"\tlsrs r0, 16\n"
+	"\tcmp r0, 0x1\n"
+	"\tbhi _0800C120\n"
+	"\tstrh r7, [r4]\n"
+	"\tldr r1, _0800C114\n"
+	"\tmovs r0, 0x10\n"
+	"\tstrh r0, [r1]\n"
+	"\tldr r0, _0800C118\n"
+	"\tstrb r2, [r0]\n"
+	"\tldr r0, _0800C11C\n"
+	"\tmovs r1, 0x1\n"
+	"\tbl m4aMPlayFadeOutTemporarily\n"
+	"\tb _0800C15E\n"
+	"\t.align 2, 0\n"
+"_0800C0FC: .4byte 0x000003e5\n"
+"_0800C100: .4byte gUnknown_202D68E\n"
+"_0800C104: .4byte gUnknown_202D690\n"
+"_0800C108: .4byte gCurrentBGSong\n"
+"_0800C10C: .4byte 0x000003e7\n"
+"_0800C110: .4byte gBGMusicPlayerState\n"
+"_0800C114: .4byte gUnknown_202D692\n"
+"_0800C118: .4byte gUnknown_202D694\n"
+"_0800C11C: .4byte gUnknown_20008F0\n"
+"_0800C120:\n"
+	"\tlsls r0, r1, 16\n"
+	"\tlsrs r0, 16\n"
+	"\tcmp r0, 0x3\n"
+	"\tbne _0800C12C\n"
+	"\tmovs r0, 0x2\n"
+	"\tb _0800C15C\n"
+"_0800C12C:\n"
+	"\tmovs r0, 0x3\n"
+	"\tstrh r0, [r4]\n"
+	"\tldr r0, _0800C140\n"
+	"\tbl m4aMPlayStop\n"
+	"\tldrh r0, [r6]\n"
+	"\tbl m4aSongNumStart\n"
+	"\tb _0800C15E\n"
+	"\t.align 2, 0\n"
+"_0800C140: .4byte gUnknown_20008F0\n"
+"_0800C144:\n"
+	"\tsubs r0, 0x1\n"
+	"\tlsls r0, 16\n"
+	"\tlsrs r0, 16\n"
+	"\tcmp r0, 0x1\n"
+	"\tbls _0800C15E\n"
+	"\tldr r0, _0800C17C\n"
+	"\tbl m4aMPlayStop\n"
+	"\tldrh r0, [r6]\n"
+	"\tbl m4aSongNumStart\n"
+	"\tmovs r0, 0x3\n"
+"_0800C15C:\n"
+	"\tstrh r0, [r4]\n"
+"_0800C15E:\n"
+	"\tldr r0, _0800C180\n"
+	"\tldrh r0, [r0]\n"
+	"\tcmp r0, 0x26\n"
+	"\tbgt _0800C184\n"
+	"\tcmp r0, 0x25\n"
+	"\tbge _0800C19A\n"
+	"\tcmp r0, 0x1A\n"
+	"\tblt _0800C1A0\n"
+	"\tcmp r0, 0x1F\n"
+	"\tble _0800C19A\n"
+	"\tcmp r0, 0x23\n"
+	"\tbgt _0800C1A0\n"
+	"\tcmp r0, 0x22\n"
+	"\tblt _0800C1A0\n"
+	"\tb _0800C19A\n"
+	"\t.align 2, 0\n"
+"_0800C17C: .4byte gUnknown_20008F0\n"
+"_0800C180: .4byte gCurrentBGSong\n"
+"_0800C184:\n"
+	"\tcmp r0, 0x7A\n"
+	"\tbeq _0800C19A\n"
+	"\tcmp r0, 0x7A\n"
+	"\tbgt _0800C196\n"
+	"\tcmp r0, 0x77\n"
+	"\tbgt _0800C1A0\n"
+	"\tcmp r0, 0x75\n"
+	"\tblt _0800C1A0\n"
+	"\tb _0800C19A\n"
+"_0800C196:\n"
+	"\tcmp r0, 0x7F\n"
+	"\tbne _0800C1A0\n"
+"_0800C19A:\n"
+	"\tldr r1, _0800C1AC\n"
+	"\tmovs r0, 0x1\n"
+	"\tstrb r0, [r1]\n"
+"_0800C1A0:\n"
+	"\tmov r0, r8\n"
+	"\tcmp r0, 0\n"
+	"\tbeq _0800C208\n"
+	"\tbl EnableInterrupts\n"
+	"\tb _0800C208\n"
+	"\t.align 2, 0\n"
+"_0800C1AC: .4byte gUnknown_202D694\n"
+"_0800C1B0:\n"
+	"\tadds r0, r5, 0\n"
+	"\tbl sub_800CAAC\n"
+	"\tlsls r0, 24\n"
+	"\tcmp r0, 0\n"
+	"\tbeq _0800C208\n"
+	"\tadds r0, r5, 0\n"
+	"\tbl sub_800CAE0\n"
+	"\tlsls r0, 16\n"
+	"\tlsrs r0, 16\n"
+	"\tlsls r2, r0, 3\n"
+	"\tldr r1, _0800C1D8\n"
+	"\tadds r4, r2, r1\n"
+	"\tcmp r0, 0x1\n"
+	"\tbhi _0800C1DC\n"
+"_0800C1D0:\n"
+	"\tadds r0, r5, 0\n"
+	"\tbl nullsub_20\n"
+	"\tb _0800C208\n"
+	"\t.align 2, 0\n"
+"_0800C1D8: .4byte gUnknown_3000FD8\n"
+"_0800C1DC:\n"
+	"\tbl DisableInterrupts\n"
+	"\tlsls r0, 24\n"
+	"\tlsrs r5, r0, 24\n"
+	"\tmov r0, r8\n"
+	"\tbl m4aSongNumStart\n"
+	"\tmovs r0, 0x1\n"
+	"\tstrh r0, [r4]\n"
+	"\tmov r0, r8\n"
+	"\tstrh r0, [r4, 0x2]\n"
+	"\tcmp r6, r7\n"
+	"\tbne _0800C1FA\n"
+	"\tmovs r0, 0\n"
+	"\tb _0800C1FC\n"
+"_0800C1FA:\n"
+	"\tmovs r0, 0x1\n"
+"_0800C1FC:\n"
+	"\tstrb r0, [r4, 0x6]\n"
+	"\tstrh r6, [r4, 0x4]\n"
+	"\tcmp r5, 0\n"
+	"\tbeq _0800C208\n"
+	"\tbl EnableInterrupts\n"
+"_0800C208:\n"
+	"\tpop {r3}\n"
+	"\tmov r8, r3\n"
+	"\tpop {r4-r7}\n"
+	"\tpop {r0}\n"
+	"\tbx r0");
+}
+#endif
+
+void sub_800C214(u16 songIndex, u16 volume)
+{
+  bool8 interrupt_flag;
+  u16 msVar;
+  struct MusicPlayerInfo *info;
+  struct unkStruct_3000FD8 *preload;
+
+  if (256 < volume) {
+    volume = 256;
+  }
+
+  if ((!sub_800CACC(songIndex)) && (sub_800CAAC(songIndex))) {
+    msVar = sub_800CAE0(songIndex);
+    info = gMPlayTable[msVar].info;
+    preload = &gUnknown_3000FD8[msVar];
+    if (msVar > 1) {
+      interrupt_flag = DisableInterrupts();
+      if (preload->songIndex == songIndex) {
+        m4aMPlayVolumeControl(info, 0xf, volume);
+      }
+      if (interrupt_flag)
+        EnableInterrupts();
+    }
+  }
+}
diff --git a/src/save_mid.c b/src/save_mid.c
index 604c98d..0c4531c 100644
--- a/src/save_mid.c
+++ b/src/save_mid.c
@@ -75,7 +75,7 @@ extern void MemoryFree(void* a);
 extern void MemoryFill8(u8 *dest, u8 value, s32 size);
 extern void sub_8011830(void);
 extern s32 WriteFlashData(s32 sector, u8 *src, s32 size);
-extern void sub_8011854(void);
+extern void xxx_call_start_bg_music(void);
 extern u32 *sub_809769C(void);
 u32 *sub_8011C4C(void);
 extern void sub_80958E4(u8 *a, u32 b);
@@ -125,7 +125,7 @@ u32 sub_8012240(void)
     MemoryFill8((u8 *)r5, 0xFF, 0x4);
     sub_8011830();
     temp = WriteFlashData(0x1F, (u8 *)r5, sizeof(struct unk_struct));
-    sub_8011854();
+    xxx_call_start_bg_music();
     MemoryFree(r5);
     if(temp != 0)
     {
diff --git a/sym_ewram.txt b/sym_ewram.txt
index f5dd6a1..53ff44a 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -292,16 +292,16 @@ gUnknown_202D692 = .; /* 202D692 */
 gUnknown_202D694 = .; /* 202D694 */
 	. += 0x4;
 
-gUnknown_202D698 = .; /* 202D698 */
+gBG0Control = .; /* 202D698 */
 	. += 0x8;
 
-gUnknown_202D6A0 = .; /* 202D6A0 */
+gBG1Control = .; /* 202D6A0 */
 	. += 0x8;
 
-gUnknown_202D6A8 = .; /* 202D6A8 */
+gBG2Control = .; /* 202D6A8 */
 	. += 0x8;
 
-gUnknown_202D6B0 = .; /* 202D6B0 */
+gBG3Control = .; /* 202D6B0 */
 	. += 0x8;
 
 gUnknown_202D6B8 = .; /* 202D6B8 */
diff --git a/sym_ewram2.txt b/sym_ewram2.txt
index d736c01..4ff84ba 100644
--- a/sym_ewram2.txt
+++ b/sym_ewram2.txt
@@ -161,7 +161,7 @@ gUnknown_203B0E8 = .; /* 203B0E8 */
 gUnknown_203B0EC = .; /* 203B0EC */
 	. += 0x60;
 
-gUnknown_203B14C = .; /* 203B14C */
+gNDS_DebugEnabled = .; /* 203B14C */
 	. += 0x4;
 
 gUnknown_203B150 = .; /* 203B150 */