finish decompiling main.c (#17)

* partially decompile battle_ai.c up to tai60_unk

* nonmatching tai60_unk

* decompile more of battle_ai.c

* formatting

* finish porting battle_ai.c

* formatting

* decompile up to nonmatching VBlankIntr

* finish decompiling main.c

* formatting

24 files changed, 287 insertions, 662 deletions

diff --git a/asm/berry_blender.s b/asm/berry_blender.s
index 16c04e024..78cd941cc 100644
--- a/asm/berry_blender.s
+++ b/asm/berry_blender.s
@@ -516,7 +516,7 @@ _0807FBBE:
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0807FC14
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0807FC14
@@ -1122,7 +1122,7 @@ _08080126:
 	bne _0808016A
 	b _080804F8
 _0808016A:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08080174
@@ -3334,7 +3334,7 @@ sub_80814B0: @ 80814B0
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080814E4
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080814E4
@@ -4706,7 +4706,7 @@ sub_8081F94: @ 8081F94
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08081FB8
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08081FB8
@@ -4852,7 +4852,7 @@ _080820EC:
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0808218C
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0808218C
@@ -4968,7 +4968,7 @@ _080821D4:
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08082254
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08082254
@@ -6250,7 +6250,7 @@ sub_8082D28: @ 8082D28
 	lsls r0, 24
 	lsrs r1, r0, 24
 _08082D3C:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08082DCC
diff --git a/asm/cable_club.s b/asm/cable_club.s
index cde4bf865..f08e56d8e 100644
--- a/asm/cable_club.s
+++ b/asm/cable_club.s
@@ -2172,7 +2172,7 @@ sub_80B360C: @ 80B360C
 	movs r5, 0x1
 	eors r0, r5
 	bl sub_813C2A0
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080B36B2
@@ -2512,7 +2512,7 @@ _080B391C:
 	thumb_func_start sub_80B3924
 sub_80B3924: @ 80B3924
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080B3940
@@ -2552,7 +2552,7 @@ sub_80B3968: @ 80B3968
 	ldr r2, =0x00002211
 	adds r0, r2, 0
 	strh r0, [r1]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080B3994
@@ -2661,7 +2661,7 @@ _080B3A62:
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080B3AA6
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080B3AA0
@@ -2752,7 +2752,7 @@ _080B3B20:
 	beq _080B3B9E
 	b _080B3BB8
 _080B3B2A:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080B3B40
@@ -2825,7 +2825,7 @@ _080B3BB8:
 	thumb_func_start sub_80B3BC4
 sub_80B3BC4: @ 80B3BC4
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080B3BD6
diff --git a/asm/contest_link_80FC4F4.s b/asm/contest_link_80FC4F4.s
index be38d0d16..d3984fb0d 100644
--- a/asm/contest_link_80FC4F4.s
+++ b/asm/contest_link_80FC4F4.s
@@ -147,7 +147,7 @@ sub_80FC5DC: @ 80FC5DC
 	ldr r1, =gUnknown_02039F2A
 	movs r0, 0x1
 	strb r0, [r1]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _080FC60C
diff --git a/asm/crt0.s b/asm/crt0.s
index a65ae1b7e..14675fe4c 100644
--- a/asm/crt0.s
+++ b/asm/crt0.s
@@ -128,7 +128,7 @@ IntrMain_FoundIntr:
 	bic r3, r3, PSR_I_BIT | PSR_F_BIT | PSR_MODE_MASK
 	orr r3, r3, PSR_SYS_MODE
 	msr cpsr_cf, r3
-	ldr r1, =gUnknown_03002710
+	ldr r1, =gIntrTable
 	add r1, r1, r12
 	ldr r0, [r1]
 	stmdb sp!, {lr}
diff --git a/asm/evolution_scene.s b/asm/evolution_scene.s
index 93d8bd2a2..dd6b9c3c4 100644
--- a/asm/evolution_scene.s
+++ b/asm/evolution_scene.s
@@ -756,7 +756,7 @@ _0813E0F0:
 	b _0813E1C8
 	.pool
 _0813E160:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0813E174
@@ -3359,7 +3359,7 @@ _0813FA24:
 	beq _0813FA32
 	b _0813FCC4
 _0813FA32:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0813FA3E
diff --git a/asm/link.s b/asm/link.s
index 198807457..4644d9f4a 100644
--- a/asm/link.s
+++ b/asm/link.s
@@ -387,7 +387,7 @@ _08009726:
 	thumb_func_start sub_8009734
 sub_8009734: @ 8009734
 	push {r4-r6,lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r4, [r0]
 	cmp r4, 0
 	bne _080097A8
@@ -451,7 +451,7 @@ sub_80097E8: @ 80097E8
 	ldr r0, =gUnknown_03003124
 	movs r4, 0
 	strb r4, [r0]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080097FC
@@ -1278,7 +1278,7 @@ _08009F06:
 	thumb_func_start sub_8009F18
 sub_8009F18: @ 8009F18
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08009F26
@@ -1295,7 +1295,7 @@ _08009F26:
 	thumb_func_start sub_8009F3C
 sub_8009F3C: @ 8009F3C
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08009F50
@@ -1336,7 +1336,7 @@ _08009F80:
 	thumb_func_start sub_8009F8C
 sub_8009F8C: @ 8009F8C
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r1, [r0]
 	cmp r1, 0
 	beq _08009FA0
@@ -1355,7 +1355,7 @@ _08009FA4:
 	thumb_func_start sub_8009FAC
 sub_8009FAC: @ 8009FAC
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r1, [r0]
 	cmp r1, 0
 	beq _08009FC0
@@ -1374,7 +1374,7 @@ _08009FC4:
 	thumb_func_start sub_8009FCC
 sub_8009FCC: @ 8009FCC
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08009FEC
@@ -1934,7 +1934,7 @@ sub_800A418: @ 800A418
 	ldr r1, =gUnknown_020223C0
 	movs r0, 0
 	str r0, [r1]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0800A438
@@ -1972,7 +1972,7 @@ sub_800A458: @ 800A458
 	thumb_func_start link_get_multiplayer_id
 link_get_multiplayer_id: @ 800A468
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	beq _0800A484
@@ -2014,7 +2014,7 @@ link_0800A448: @ 800A4AC
 	adds r3, r1, 0
 	lsls r2, 16
 	lsrs r1, r2, 16
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	beq _0800A4C8
@@ -2038,7 +2038,7 @@ sub_800A4D8: @ 800A4D8
 	lsls r0, 24
 	lsrs r1, r0, 24
 	adds r2, r1, 0
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800A4F8
@@ -2071,7 +2071,7 @@ _0800A514:
 	thumb_func_start sub_800A520
 sub_800A520: @ 800A520
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800A538
@@ -2098,7 +2098,7 @@ _0800A546:
 	thumb_func_start sub_800A550
 sub_800A550: @ 800A550
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	beq _0800A57C
@@ -2129,7 +2129,7 @@ sub_800A588: @ 800A588
 	push {lr}
 	lsls r0, 24
 	lsrs r1, r0, 24
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800A5A4
@@ -2151,7 +2151,7 @@ _0800A5AC:
 	thumb_func_start sub_800A5B4
 sub_800A5B4: @ 800A5B4
 	push {r4,lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800A5D4
@@ -2186,7 +2186,7 @@ sub_800A5EC: @ 800A5EC
 	push {lr}
 	lsls r0, 24
 	lsrs r1, r0, 24
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800A608
@@ -2932,7 +2932,7 @@ sub_800ABAC: @ 800ABAC
 	thumb_func_start sub_800ABBC
 sub_800ABBC: @ 800ABBC
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0800ABDC
@@ -2965,7 +2965,7 @@ sub_800ABF4: @ 800ABF4
 	push {lr}
 	lsls r0, 16
 	lsrs r3, r0, 16
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800AC0C
@@ -2992,7 +2992,7 @@ _0800AC20:
 	thumb_func_start sub_800AC34
 sub_800AC34: @ 800AC34
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800AC48
@@ -3090,7 +3090,7 @@ _0800ACF4:
 	thumb_func_start sub_800AD10
 sub_800AD10: @ 800AD10
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800AD24
@@ -3194,7 +3194,7 @@ _0800ADDA:
 	thumb_func_start sub_800ADF8
 sub_800ADF8: @ 800ADF8
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _0800AE0C
@@ -3361,7 +3361,7 @@ c2_800ACD4: @ 800AF30
 	bl rboxid_80040B8
 	bl ResetTasks
 	bl remove_some_task
-	ldr r1, =gUnknown_030030FC
+	ldr r1, =gLinkVSyncDisabled
 	ldrb r0, [r1]
 	cmp r0, 0
 	beq _0800AF8C
@@ -3615,7 +3615,7 @@ _0800B20C:
 	bl audio_play
 	b _0800B260
 _0800B214:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x2
 	bne _0800B244
@@ -3654,7 +3654,7 @@ _0800B260:
 	ldrb r1, [r1]
 	cmp r1, 0xA0
 	bne _0800B2D0
-	ldr r4, =gUnknown_030030FC
+	ldr r4, =gLinkVSyncDisabled
 	ldrb r2, [r4]
 	cmp r2, 0x1
 	bne _0800B2A8
@@ -3856,7 +3856,7 @@ _0800B3F4:
 	thumb_func_start HandleLinkConnection
 HandleLinkConnection: @ 800B40C
 	push {r4,r5,lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0800B45C
@@ -3911,7 +3911,7 @@ sub_800B488: @ 800B488
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0800B498
-	ldr r1, =gUnknown_030030FC
+	ldr r1, =gLinkVSyncDisabled
 	movs r0, 0x1
 	strb r0, [r1]
 _0800B498:
@@ -3927,7 +3927,7 @@ sub_800B4A4: @ 800B4A4
 	ldrb r1, [r0]
 	cmp r1, 0
 	bne _0800B4B2
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	strb r1, [r0]
 _0800B4B2:
 	pop {r0}
@@ -3942,7 +3942,7 @@ sub_800B4C0: @ 800B4C0
 	ldrb r1, [r0]
 	cmp r1, 0
 	bne _0800B4CE
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	strb r1, [r0]
 _0800B4CE:
 	pop {r0}
@@ -3953,7 +3953,7 @@ _0800B4CE:
 	thumb_func_start sub_800B4DC
 sub_800B4DC: @ 800B4DC
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0800B4FC
@@ -3987,7 +3987,7 @@ _0800B514:
 
 	thumb_func_start sub_800B518
 sub_800B518: @ 800B518
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	bx lr
 	.pool
@@ -9900,7 +9900,7 @@ sub_800E3A8: @ 800E3A8
 	mov r5, r8
 	push {r5-r7}
 	sub sp, 0x20
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0800E3BE
@@ -10274,7 +10274,7 @@ _0800E64A:
 	thumb_func_start sub_800E6D0
 sub_800E6D0: @ 800E6D0
 	push {r4-r6,lr}
-	ldr r4, =gUnknown_03002710
+	ldr r4, =gIntrTable
 	ldr r5, [r4, 0x4]
 	ldr r6, [r4, 0x8]
 	bl sub_800E700
@@ -10298,7 +10298,7 @@ sub_800E700: @ 800E700
 	push {r4,lr}
 	ldr r0, =gUnknown_03004190
 	ldr r1, =0x00000e64
-	ldr r4, =gUnknown_03002714
+	ldr r4, =gIntrTable + 0x4
 	adds r2, r4, 0
 	movs r3, 0x1
 	bl rfu_initializeAPI
@@ -14983,7 +14983,7 @@ sub_8010DB4: @ 8010DB4
 	cmp r0, 0
 	beq _08010DE4
 _08010DDE:
-	ldr r1, =gUnknown_030030FC
+	ldr r1, =gLinkVSyncDisabled
 	movs r0, 0x2
 	strb r0, [r1]
 _08010DE4:
@@ -16561,13 +16561,13 @@ sub_8011AB0: @ 8011AB0
 	.pool
 	thumb_func_end sub_8011AB0
 
-	thumb_func_start rfu_syncVBlank__
-rfu_syncVBlank__: @ 8011ABC
+	thumb_func_start LinkVSync
+LinkVSync: @ 8011ABC
 	push {lr}
 	bl rfu_syncVBlank_
 	pop {r0}
 	bx r0
-	thumb_func_end rfu_syncVBlank__
+	thumb_func_end LinkVSync
 
 	thumb_func_start sub_8011AC8
 sub_8011AC8: @ 8011AC8
@@ -39668,7 +39668,7 @@ sub_801DD98: @ 801DD98
 	bl Alloc
 	str r0, [r4]
 	bl sub_801DDD0
-	ldr r1, =gUnknown_030022B0
+	ldr r1, =gKeyRepeatStartDelay
 	movs r0, 0x14
 	strh r0, [r1]
 	movs r0, 0
@@ -45490,7 +45490,7 @@ sub_8020C70: @ 8020C70
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08020C8E
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08020CAC
diff --git a/asm/main.s b/asm/main.s
deleted file mode 100644
index 3d02e3869..000000000
--- a/asm/main.s
+++ /dev/null
@@ -1,505 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start EnableVCountIntrAtLine150
-@ void EnableVCountIntrAtLine150()
-EnableVCountIntrAtLine150: @ 8000594
-	push {lr}
-	movs r0, 0x4
-	bl GetGpuReg
-	movs r1, 0xFF
-	ands r1, r0
-	movs r2, 0x96
-	lsls r2, 8
-	adds r0, r2, 0
-	orrs r1, r0
-	movs r0, 0x20
-	orrs r1, r0
-	movs r0, 0x4
-	bl SetGpuReg
-	movs r0, 0x4
-	bl EnableInterrupts
-	pop {r0}
-	bx r0
-	thumb_func_end EnableVCountIntrAtLine150
-
-	thumb_func_start InitKeys
-@ void InitKeypadData()
-InitKeys: @ 80005BC
-	ldr r1, =gUnknown_030026FC
-	movs r0, 0x5
-	strh r0, [r1]
-	ldr r1, =gUnknown_030022B0
-	movs r0, 0x28
-	strh r0, [r1]
-	ldr r1, =gMain
-	movs r0, 0
-	strh r0, [r1, 0x2C]
-	strh r0, [r1, 0x2E]
-	strh r0, [r1, 0x30]
-	strh r0, [r1, 0x28]
-	strh r0, [r1, 0x2A]
-	bx lr
-	.pool
-	thumb_func_end InitKeys
-
-	thumb_func_start ReadKeys
-@ void ReadKeypad()
-ReadKeys: @ 80005E4
-	push {lr}
-	ldr r0, =0x04000130
-	ldrh r1, [r0]
-	ldr r2, =0x000003ff
-	adds r0, r2, 0
-	adds r3, r0, 0
-	eors r3, r1
-	ldr r1, =gMain
-	ldrh r2, [r1, 0x28]
-	adds r0, r3, 0
-	bics r0, r2
-	strh r0, [r1, 0x2A]
-	strh r0, [r1, 0x2E]
-	strh r0, [r1, 0x30]
-	adds r2, r1, 0
-	cmp r3, 0
-	beq _08000630
-	ldrh r0, [r2, 0x2C]
-	cmp r0, r3
-	bne _08000630
-	ldrh r0, [r2, 0x32]
-	subs r0, 0x1
-	strh r0, [r2, 0x32]
-	lsls r0, 16
-	cmp r0, 0
-	bne _08000636
-	strh r3, [r2, 0x30]
-	ldr r0, =gUnknown_030026FC
-	b _08000632
-	.pool
-_08000630:
-	ldr r0, =gUnknown_030022B0
-_08000632:
-	ldrh r0, [r0]
-	strh r0, [r2, 0x32]
-_08000636:
-	strh r3, [r2, 0x28]
-	strh r3, [r2, 0x2C]
-	ldr r0, =gSaveBlock2Ptr
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x13]
-	cmp r0, 0x2
-	bne _08000668
-	ldrh r1, [r2, 0x2E]
-	movs r3, 0x80
-	lsls r3, 2
-	adds r0, r3, 0
-	ands r0, r1
-	cmp r0, 0
-	beq _08000658
-	movs r0, 0x1
-	orrs r0, r1
-	strh r0, [r2, 0x2E]
-_08000658:
-	ldrh r1, [r2, 0x2C]
-	adds r0, r3, 0
-	ands r0, r1
-	cmp r0, 0
-	beq _08000668
-	movs r0, 0x1
-	orrs r0, r1
-	strh r0, [r2, 0x2C]
-_08000668:
-	ldrh r1, [r2, 0x2E]
-	ldrh r0, [r2, 0x36]
-	ands r0, r1
-	cmp r0, 0
-	beq _08000676
-	movs r0, 0x1
-	strh r0, [r2, 0x34]
-_08000676:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end ReadKeys
-
-	thumb_func_start InitIntrHandlers
-@ void InitIntrHandlers()
-InitIntrHandlers: @ 8000684
-	push {r4,r5,lr}
-	ldr r5, =IntrMain
-	ldr r4, =gUnknown_03002750
-	ldr r3, =gIntrTableTemplate
-	ldr r2, =gUnknown_03002710
-	movs r1, 0xD
-_08000690:
-	ldm r3!, {r0}
-	stm r2!, {r0}
-	subs r1, 0x1
-	cmp r1, 0
-	bge _08000690
-	ldr r0, =0x040000d4
-	str r5, [r0]
-	str r4, [r0, 0x4]
-	ldr r1, =0x84000200
-	str r1, [r0, 0x8]
-	ldr r0, [r0, 0x8]
-	ldr r0, =gUnknown_03007FFC
-	str r4, [r0]
-	movs r0, 0
-	bl SetVBlankCallback
-	movs r0, 0
-	bl SetHBlankCallback
-	movs r0, 0
-	bl SetSerialCallback
-	ldr r1, =0x04000208
-	movs r0, 0x1
-	strh r0, [r1]
-	movs r0, 0x1
-	bl EnableInterrupts
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end InitIntrHandlers
-
-	thumb_func_start SetVBlankCallback
-@ void SetVBlankCallback(void ( *func)())
-SetVBlankCallback: @ 80006F0
-	ldr r1, =gMain
-	str r0, [r1, 0xC]
-	bx lr
-	.pool
-	thumb_func_end SetVBlankCallback
-
-	thumb_func_start SetHBlankCallback
-@ void SetHBlankCallback(void ( *func)())
-SetHBlankCallback: @ 80006FC
-	ldr r1, =gMain
-	str r0, [r1, 0x10]
-	bx lr
-	.pool
-	thumb_func_end SetHBlankCallback
-
-	thumb_func_start SetVCountCallback
-@ void SetVCountCallback(void ( *func)())
-SetVCountCallback: @ 8000708
-	ldr r1, =gMain
-	str r0, [r1, 0x14]
-	bx lr
-	.pool
-	thumb_func_end SetVCountCallback
-
-	thumb_func_start RestoreSerialTimer3IntrHandlers
-@ void RestoreSerialTimer3IntrHandlers()
-RestoreSerialTimer3IntrHandlers: @ 8000714
-	ldr r0, =gUnknown_03002710
-	ldr r1, =SerialIntr
-	str r1, [r0, 0x4]
-	ldr r1, =Timer3Intr
-	str r1, [r0, 0x8]
-	bx lr
-	.pool
-	thumb_func_end RestoreSerialTimer3IntrHandlers
-
-	thumb_func_start SetSerialCallback
-@ void SetSerialCallback(void ( *func)())
-SetSerialCallback: @ 800072C
-	ldr r1, =gMain
-	str r0, [r1, 0x18]
-	bx lr
-	.pool
-	thumb_func_end SetSerialCallback
-
-	thumb_func_start VBlankIntr
-@ void VBlankIntr()
-VBlankIntr: @ 8000738
-	push {r4,lr}
-	ldr r0, =gUnknown_030030FC
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _0800074C
-	bl rfu_syncVBlank__
-	b _08000758
-	.pool
-_0800074C:
-	ldr r0, =gUnknown_03002748
-	ldrb r0, [r0]
-	cmp r0, 0
-	bne _08000758
-	bl sub_800B9B8
-_08000758:
-	ldr r0, =gMain
-	ldr r1, [r0, 0x20]
-	adds r1, 0x1
-	str r1, [r0, 0x20]
-	ldr r1, =gUnknown_0203CF5C
-	ldr r1, [r1]
-	adds r4, r0, 0
-	cmp r1, 0
-	beq _08000778
-	ldr r2, [r1]
-	movs r0, 0x2
-	negs r0, r0
-	cmp r2, r0
-	bhi _08000778
-	adds r0, r2, 0x1
-	str r0, [r1]
-_08000778:
-	ldr r0, [r4, 0xC]
-	cmp r0, 0
-	beq _08000782
-	bl _call_via_r0
-_08000782:
-	ldr r0, [r4, 0x24]
-	adds r0, 0x1
-	str r0, [r4, 0x24]
-	bl CopyBufferedValuesToGpuRegs
-	bl ProcessDma3Requests
-	ldr r1, =gUnknown_03002F50
-	ldr r0, =gSoundInfo
-	ldrb r0, [r0, 0x4]
-	strb r0, [r1]
-	bl m4aSoundMain
-	bl sub_8033648
-	ldr r1, =0x00000439
-	adds r0, r4, r1
-	ldrb r1, [r0]
-	movs r0, 0x2
-	ands r0, r1
-	cmp r0, 0
-	beq _080007BA
-	ldr r0, =gBattleTypeFlags
-	ldr r0, [r0]
-	ldr r1, =0x013f0102
-	ands r0, r1
-	cmp r0, 0
-	bne _080007BE
-_080007BA:
-	bl Random
-_080007BE:
-	bl sub_800E174
-	ldr r2, =gUnknown_03007FF8
-	ldrh r0, [r2]
-	movs r1, 0x1
-	orrs r0, r1
-	strh r0, [r2]
-	ldr r0, =gMain
-	ldrh r2, [r0, 0x1C]
-	ldrh r3, [r0, 0x1C]
-	orrs r1, r2
-	strh r1, [r0, 0x1C]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end VBlankIntr
-
-	thumb_func_start StartFlashMemoryTimer
-@ void StartFlashMemoryTimer()
-StartFlashMemoryTimer: @ 8000800
-	push {lr}
-	ldr r1, =gUnknown_0300272C
-	movs r0, 0x2
-	bl SetFlashTimerIntr
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end StartFlashMemoryTimer
-
-	thumb_func_start HBlankIntr
-@ void HBlankIntr()
-HBlankIntr: @ 8000814
-	push {r4,lr}
-	ldr r4, =gMain
-	ldr r0, [r4, 0x10]
-	cmp r0, 0
-	beq _08000822
-	bl _call_via_r0
-_08000822:
-	ldr r2, =gUnknown_03007FF8
-	ldrh r0, [r2]
-	movs r1, 0x2
-	orrs r0, r1
-	strh r0, [r2]
-	ldrh r0, [r4, 0x1C]
-	ldrh r2, [r4, 0x1C]
-	orrs r1, r0
-	strh r1, [r4, 0x1C]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end HBlankIntr
-
-	thumb_func_start VCountIntr
-@ void VCountIntr()
-VCountIntr: @ 8000844
-	push {r4,lr}
-	ldr r4, =gMain
-	ldr r0, [r4, 0x14]
-	cmp r0, 0
-	beq _08000852
-	bl _call_via_r0
-_08000852:
-	bl m4aSoundVSync
-	ldr r2, =gUnknown_03007FF8
-	ldrh r0, [r2]
-	movs r1, 0x4
-	orrs r0, r1
-	strh r0, [r2]
-	ldrh r0, [r4, 0x1C]
-	ldrh r2, [r4, 0x1C]
-	orrs r1, r0
-	strh r1, [r4, 0x1C]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end VCountIntr
-
-	thumb_func_start SerialIntr
-@ void SerialIntr()
-SerialIntr: @ 8000878
-	push {r4,lr}
-	ldr r4, =gMain
-	ldr r0, [r4, 0x18]
-	cmp r0, 0
-	beq _08000886
-	bl _call_via_r0
-_08000886:
-	ldr r2, =gUnknown_03007FF8
-	ldrh r0, [r2]
-	movs r1, 0x80
-	orrs r0, r1
-	strh r0, [r2]
-	ldrh r0, [r4, 0x1C]
-	ldrh r2, [r4, 0x1C]
-	orrs r1, r0
-	strh r1, [r4, 0x1C]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end SerialIntr
-
-	thumb_func_start IntrDummy
-@ void IntrDummy()
-IntrDummy: @ 80008A8
-	bx lr
-	thumb_func_end IntrDummy
-
-	thumb_func_start WaitForVBlank
-@ void WaitForVBlankIntr()
-WaitForVBlank: @ 80008AC
-	push {lr}
-	ldr r2, =gMain
-	ldrh r1, [r2, 0x1C]
-	ldr r0, =0x0000fffe
-	ands r0, r1
-	ldrh r1, [r2, 0x1C]
-	strh r0, [r2, 0x1C]
-	ldrh r1, [r2, 0x1C]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	bne _080008D0
-	movs r3, 0x1
-_080008C6:
-	ldrh r1, [r2, 0x1C]
-	adds r0, r3, 0
-	ands r0, r1
-	cmp r0, 0
-	beq _080008C6
-_080008D0:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end WaitForVBlank
-
-	thumb_func_start sub_80008DC
-sub_80008DC: @ 80008DC
-	ldr r1, =gUnknown_0203CF5C
-	str r0, [r1]
-	bx lr
-	.pool
-	thumb_func_end sub_80008DC
-
-	thumb_func_start sub_80008E8
-sub_80008E8: @ 80008E8
-	ldr r1, =gUnknown_0203CF5C
-	movs r0, 0
-	str r0, [r1]
-	bx lr
-	.pool
-	thumb_func_end sub_80008E8
-
-	thumb_func_start DoSoftReset
-@ void Reset()
-DoSoftReset: @ 80008F4
-	push {r4,lr}
-	ldr r1, =0x04000208
-	movs r0, 0
-	strh r0, [r1]
-	bl m4aSoundVSyncOff
-	bl remove_some_task
-	ldr r1, =0x040000bc
-	ldrh r2, [r1, 0xA]
-	ldr r3, =0x0000c5ff
-	adds r0, r3, 0
-	ands r0, r2
-	strh r0, [r1, 0xA]
-	ldrh r4, [r1, 0xA]
-	ldr r2, =0x00007fff
-	adds r0, r2, 0
-	ands r0, r4
-	strh r0, [r1, 0xA]
-	ldrh r0, [r1, 0xA]
-	adds r1, 0xC
-	ldrh r4, [r1, 0xA]
-	adds r0, r3, 0
-	ands r0, r4
-	strh r0, [r1, 0xA]
-	ldrh r4, [r1, 0xA]
-	adds r0, r2, 0
-	ands r0, r4
-	strh r0, [r1, 0xA]
-	ldrh r0, [r1, 0xA]
-	ldr r0, =0x040000d4
-	ldrh r1, [r0, 0xA]
-	ands r3, r1
-	strh r3, [r0, 0xA]
-	ldrh r1, [r0, 0xA]
-	ands r2, r1
-	strh r2, [r0, 0xA]
-	ldrh r0, [r0, 0xA]
-	bl SiiRtcProtect
-	movs r0, 0xFF
-	bl SoftReset
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end DoSoftReset
-
-	thumb_func_start ClearPokemonCrySongs
-ClearPokemonCrySongs: @ 8000964
-	push {lr}
-	sub sp, 0x4
-	mov r1, sp
-	movs r0, 0
-	strh r0, [r1]
-	ldr r1, =gPokemonCrySongs
-	ldr r2, =0x01000034
-	mov r0, sp
-	bl CpuSet
-	add sp, 0x4
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end ClearPokemonCrySongs
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/asm/naming_screen.s b/asm/naming_screen.s
index 6585a4f43..2199b0420 100644
--- a/asm/naming_screen.s
+++ b/asm/naming_screen.s
@@ -209,7 +209,7 @@ choose_name_or_words_screen_setup: @ 80E2EA8
 	strh r0, [r1]
 _080E2F2C:
 	ldr r0, [r5]
-	ldr r4, =gUnknown_030022B0
+	ldr r4, =gKeyRepeatStartDelay
 	ldrh r1, [r4]
 	ldr r2, =0x00001e25
 	adds r0, r2
diff --git a/asm/pokedex_cry_screen.s b/asm/pokedex_cry_screen.s
index fddf56816..81da8368a 100644
--- a/asm/pokedex_cry_screen.s
+++ b/asm/pokedex_cry_screen.s
@@ -295,7 +295,7 @@ sub_8145588: @ 8145588
 	thumb_func_start sub_81455A8
 sub_81455A8: @ 81455A8
 	push {r4,lr}
-	ldr r3, =gUnknown_03002F50
+	ldr r3, =gPcmDmaCounter
 	movs r0, 0
 	ldrsb r0, [r3, r0]
 	cmp r0, 0x1
diff --git a/asm/record_mixing.s b/asm/record_mixing.s
index 352066d57..b5da0864f 100644
--- a/asm/record_mixing.s
+++ b/asm/record_mixing.s
@@ -621,7 +621,7 @@ _080E726C:
 	bne _080E730A
 	movs r0, 0x4
 	strh r0, [r5]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080E7296
@@ -664,7 +664,7 @@ _080E72C0:
 	ldr r0, [r0]
 	bl Free
 	bl sub_808729C
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080E72F8
@@ -2393,7 +2393,7 @@ _080E80C0:
 	lsls r0, 24
 	cmp r0, 0
 	bne _080E810A
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080E80E8
diff --git a/asm/rom3.s b/asm/rom3.s
index f71e20d8e..380f605a1 100644
--- a/asm/rom3.s
+++ b/asm/rom3.s
@@ -14,7 +14,7 @@ battle_wireless_setup_if_required_maybe: @ 8032654
 	ands r0, r1
 	cmp r0, 0
 	beq _08032686
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0803266E
@@ -1675,7 +1675,7 @@ _080334E0:
 	adds r0, 0x1
 	b _0803363E
 _080334E6:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08033504
diff --git a/asm/rom4.s b/asm/rom4.s
index 5d26d3461..8440c5374 100644
--- a/asm/rom4.s
+++ b/asm/rom4.s
@@ -3395,7 +3395,7 @@ c2_8056854: @ 8086140
 	ldr r0, =c1_link_related
 	bl set_callback1
 	bl sub_8086C2C
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08086174
@@ -3586,7 +3586,7 @@ sub_808631C: @ 808631C
 	bne _0808632E
 	bl sub_80097E8
 _0808632E:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08086348
@@ -3768,7 +3768,7 @@ _080864DA:
 	bl cur_mapheader_run_tileset_funcs_after_some_cpuset
 	b _08086506
 _080864E0:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08086506
@@ -4056,7 +4056,7 @@ _08086766:
 	bl cur_mapheader_run_tileset_funcs_after_some_cpuset
 	b _08086792
 _0808676C:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08086792
@@ -4565,7 +4565,7 @@ _08086BCA:
 	thumb_func_start c1_link_related
 c1_link_related: @ 8086BD8
 	push {r4,lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08086BF2
@@ -4631,7 +4631,7 @@ c1_link_related_func_set: @ 8086C50
 	thumb_func_start sub_8086C64
 sub_8086C64: @ 8086C64
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08086C82
@@ -5029,7 +5029,7 @@ _08086FC0:
 	movs r0, 0x11
 	strh r0, [r1]
 _08086FC6:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08086FFC
@@ -5926,7 +5926,7 @@ _08087666:
 	thumb_func_start sub_808766C
 sub_808766C: @ 808766C
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08087688
@@ -5946,7 +5946,7 @@ _0808768A:
 	thumb_func_start sub_8087690
 sub_8087690: @ 8087690
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080876B0
diff --git a/asm/rom5.s b/asm/rom5.s
index f90aabca5..2175e992b 100644
--- a/asm/rom5.s
+++ b/asm/rom5.s
@@ -271,7 +271,7 @@ _080A955C:
 	ldrb r0, [r0]
 	movs r1, 0
 	bl sub_8059CB4
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080A95D2
diff --git a/asm/rom6.s b/asm/rom6.s
index ebb3c955a..ea3097383 100644
--- a/asm/rom6.s
+++ b/asm/rom6.s
@@ -11823,7 +11823,7 @@ _0813B790:
 	b _0813B7C6
 	.pool
 _0813B7A8:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0813B7B4
diff --git a/asm/rom_8034C54.s b/asm/rom_8034C54.s
index c91cd93c0..161724a59 100644
--- a/asm/rom_8034C54.s
+++ b/asm/rom_8034C54.s
@@ -4091,7 +4091,7 @@ _0803703C:
 	movs r0, 0x1
 	strb r0, [r1]
 _08037068:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08037072
@@ -4154,7 +4154,7 @@ _080370D8:
 	ldr r0, =gUnknown_02024332
 	strb r6, [r0]
 _080370EE:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080370F8
@@ -4559,7 +4559,7 @@ _080374E0:
 	movs r0, 0x1
 	strb r0, [r1]
 _0803750C:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08037518
@@ -4644,7 +4644,7 @@ _08037530:
 	movs r0, 0x2
 	strb r0, [r1]
 _080375C4:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080375CE
@@ -5365,7 +5365,7 @@ _08037C64:
 	ldrb r0, [r5]
 	adds r0, 0x1
 	strb r0, [r5]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08037C98
@@ -5376,7 +5376,7 @@ _08037C98:
 	bl sub_800AC34
 	b _08037D0A
 _08037C9E:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08037CE4
@@ -5566,7 +5566,7 @@ _08037E64:
 	movs r0, 0x1
 	strb r0, [r1]
 _08037E90:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08037E9A
@@ -5618,7 +5618,7 @@ _08037EBE:
 	adds r0, 0x1
 	strb r0, [r1]
 _08037F02:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08037F0C
@@ -7734,7 +7734,7 @@ _0803914C:
 	bne _080391C6
 	b _08039172
 _08039166:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08039172
@@ -7757,7 +7757,7 @@ _08039184:
 	adds r3, r2, 0
 	cmp r0, 0
 	beq _080391A6
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080391A6
@@ -8210,7 +8210,7 @@ _080395DA:
 	ands r0, r1
 	cmp r0, 0
 	beq _080395F6
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080395F6
@@ -8231,7 +8231,7 @@ _08039610:
 	adds r3, r2, 0
 	cmp r0, 0
 	beq _08039634
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08039634
@@ -64531,7 +64531,7 @@ _080586E8:
 	thumb_func_start sub_80586F8
 sub_80586F8: @ 80586F8
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0805875C
@@ -64615,7 +64615,7 @@ sub_80587B0: @ 80587B0
 	lsls r0, 24
 	cmp r0, 0
 	beq _08058832
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _080587F0
diff --git a/asm/rom_80C6FA0.s b/asm/rom_80C6FA0.s
index db3c701e5..545988904 100644
--- a/asm/rom_80C6FA0.s
+++ b/asm/rom_80C6FA0.s
@@ -1866,7 +1866,7 @@ sub_80C7E98: @ 80C7E98
 	adds r1, 0x10
 	movs r2, 0x8
 	bl sub_80D2A90
-	ldr r1, =gUnknown_030022B0
+	ldr r1, =gKeyRepeatStartDelay
 	movs r0, 0x14
 	strh r0, [r1]
 	bl clear_scheduled_bg_copies_to_vram
diff --git a/asm/rom_8158B30.s b/asm/rom_8158B30.s
index e7f93f1dc..5e0958efe 100644
--- a/asm/rom_8158B30.s
+++ b/asm/rom_8158B30.s
@@ -23265,7 +23265,7 @@ _08164D14:
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08164DB0
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _08164DB0
@@ -23303,7 +23303,7 @@ _08164DB6:
 	thumb_func_start sub_8164DCC
 sub_8164DCC: @ 8164DCC
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08164DDA
@@ -26046,7 +26046,7 @@ _08166468:
 	bne _08166556
 	b _0816653C
 _08166474:
-	ldr r1, =gUnknown_030022B0
+	ldr r1, =gKeyRepeatStartDelay
 	movs r0, 0x14
 	strh r0, [r1]
 	bl sub_8167420
diff --git a/asm/rom_81BAD84.s b/asm/rom_81BAD84.s
index ffc1631e6..df1f6587f 100644
--- a/asm/rom_81BAD84.s
+++ b/asm/rom_81BAD84.s
@@ -34484,7 +34484,7 @@ sub_81CCFD8: @ 81CCFD8
 	adds r0, r4, r1
 	bl sub_81D1ED4
 	bl sub_81CD970
-	ldr r1, =gUnknown_030022B0
+	ldr r1, =gKeyRepeatStartDelay
 	movs r0, 0x14
 	strh r0, [r1]
 	ldr r0, =0x00006304
@@ -34515,7 +34515,7 @@ sub_81CD024: @ 81CD024
 	adds r0, r4, r1
 	bl sub_81D1ED4
 	bl sub_81CD9F8
-	ldr r1, =gUnknown_030022B0
+	ldr r1, =gKeyRepeatStartDelay
 	movs r0, 0x14
 	strh r0, [r1]
 	ldr r0, =0x00006304
@@ -40982,10 +40982,10 @@ sub_81D0450: @ 81D0450
 	adds r1, 0x98
 	ldr r0, =sub_81D04C4
 	str r0, [r1]
-	ldr r1, =gUnknown_030026FC
+	ldr r1, =gKeyRepeatContinueDelay
 	movs r0, 0x3
 	strh r0, [r1]
-	ldr r1, =gUnknown_030022B0
+	ldr r1, =gKeyRepeatStartDelay
 	movs r0, 0xA
 	strh r0, [r1]
 	movs r0, 0x1
@@ -50412,7 +50412,7 @@ sub_81D4D50: @ 81D4D50
 	strh r0, [r1]
 	movs r0, 0
 	strh r0, [r4]
-	ldr r1, =gUnknown_03002710
+	ldr r1, =gIntrTable
 	ldr r0, =sub_81D3FAC
 	str r0, [r1, 0x4]
 	ldr r0, =sub_81D3F9C
diff --git a/asm/start_menu.s b/asm/start_menu.s
index 4a3e54026..0e67e01e8 100644
--- a/asm/start_menu.s
+++ b/asm/start_menu.s
@@ -2092,7 +2092,7 @@ _080A05AC:
 	movs r2, 0x10
 	movs r3, 0
 	bl pal_fade_maybe
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080A0620
diff --git a/asm/trade.s b/asm/trade.s
index eced98662..0c85c2711 100644
--- a/asm/trade.s
+++ b/asm/trade.s
@@ -135,7 +135,7 @@ _08077258:
 	thumb_func_start sub_8077260
 sub_8077260: @ 8077260
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08077280
@@ -409,7 +409,7 @@ _080774B2:
 	ldr r0, [r0]
 	adds r0, 0xA8
 	strb r2, [r0]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08077528
@@ -531,7 +531,7 @@ _08077600:
 	ldr r0, [r0]
 	adds r0, 0xA8
 	strb r2, [r0]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	bne _0807762A
@@ -543,7 +543,7 @@ _0807762A:
 	b _08077B46
 	.pool
 _08077648:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08077680
@@ -1182,7 +1182,7 @@ _08077C28:
 	b _080780D8
 	.pool
 _08077C3C:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08077C50
@@ -1780,7 +1780,7 @@ sub_807816C: @ 807816C
 	adds r0, 0x7E
 	ldrb r0, [r0]
 	strb r0, [r1, 0x1]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080781B4
@@ -1809,7 +1809,7 @@ sub_80781C8: @ 80781C8
 	ldr r5, =gMain
 	ldr r0, =sub_80773AC
 	str r0, [r5, 0x8]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08078220
@@ -4004,7 +4004,7 @@ sub_8079490: @ 8079490
 	ands r0, r1
 	cmp r0, 0
 	bne _080794C4
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _080794B4
@@ -4029,7 +4029,7 @@ _080794C4:
 	thumb_func_start sub_80794CC
 sub_80794CC: @ 80794CC
 	push {lr}
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _08079518
@@ -7507,7 +7507,7 @@ _0807B0F0:
 	ands r0, r1
 	cmp r0, 0
 	bne _0807B116
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0807B110
@@ -13831,7 +13831,7 @@ _0807EDC0:
 	movs r0, 0x15
 	bl sav12_xor_increment
 _0807EDCE:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0807EDF6
@@ -14044,7 +14044,7 @@ _0807EFA4:
 	lsrs r0, 24
 	cmp r0, 0x1
 	bne _0807F03A
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0807EFD8
@@ -14071,7 +14071,7 @@ _0807EFE4:
 	b _0807F03A
 	.pool
 _0807EFF0:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0807F028
@@ -14141,7 +14141,7 @@ c2_080543C4: @ 807F068
 	ldr r0, [r4]
 	bl Free
 	str r5, [r4]
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0
 	beq _0807F0B6
diff --git a/asm/trainer_card.s b/asm/trainer_card.s
index 9b22b7ccd..849b7b4bc 100644
--- a/asm/trainer_card.s
+++ b/asm/trainer_card.s
@@ -187,7 +187,7 @@ _080C2830:
 	bl sub_80C4630
 	b _080C28D4
 _080C2836:
-	ldr r0, =gUnknown_030030FC
+	ldr r0, =gLinkVSyncDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _080C2852
diff --git a/ld_script.txt b/ld_script.txt
index 1f31ca849..c6c40a62f 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -42,7 +42,6 @@ SECTIONS {
     {
         asm/crt0.o(.text);
         src/main.o(.text);
-        asm/main.o(.text);
         src/malloc.o(.text);
         asm/dma3_manager.o(.text);
         src/gpu_regs.o(.text);
diff --git a/src/main.c b/src/main.c
index ff28b1e84..32e0429d3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3,6 +3,12 @@
 #include "gba/flash_internal.h"
 #include "gba/m4a_internal.h"
 
+extern u16 GetGpuReg(u8);
+extern void SetGpuReg(u8, u16);
+extern void LinkVSync(void);
+extern void sub_800E174(void);
+extern void sub_800B9B8(void);
+
 extern struct SoundInfo gSoundInfo;
 extern u32 gFlashMemoryPresent;
 extern u32 IntrMain[];
@@ -10,7 +16,10 @@ extern u8 gHeap[];
 extern struct SaveBlock2 gUnknown_02024A54;
 extern char *gUnknown_03005D94;
 extern char gUnknown_02029808[];
-extern u32 gUnknown_0203CF5C;
+extern u16 gIntrCheck;
+extern u32 gBattleTypeFlags;
+extern u8 gUnknown_03002748;
+//extern u32 gUnknown_0203CF5C;
 
 void Timer3Intr(void);
 bool8 HandleLinkConnection(void);
@@ -22,7 +31,6 @@ static void VCountIntr(void);
 static void SerialIntr(void);
 static void IntrDummy(void);
 
-
 const u8 gGameVersion = VERSION_EMERALD;
 
 const u8 gGameLanguage = GAME_LANGUAGE; // English
@@ -70,7 +78,7 @@ static void InitMainCallbacks(void);
 static void CallCallbacks(void);
 static void SeedRngWithRtc(void);
 static void ReadKeys(void);
-static void InitIntrHandlers(void);
+void InitIntrHandlers(void);
 static void WaitForVBlank(void);
 
 #define B_START_SELECT (B_BUTTON | START_BUTTON | SELECT_BUTTON)
@@ -149,10 +157,17 @@ static void UpdateLinkAndCallCallbacks(void)
         CallCallbacks();
 }
 
+struct gUnknown_0203CF5C_Struct
+{
+    u32 value;
+};
+
+extern struct gUnknown_0203CF5C_Struct gUnknown_0203CF5C;
+
 static void InitMainCallbacks(void)
 {
     gMain.vblankCounter1 = 0;
-    gUnknown_0203CF5C = 0;
+    gUnknown_0203CF5C.value = 0;
     gMain.vblankCounter2 = 0;
     gMain.callback1 = NULL;
     SetMainCallback2(c2_copyright_1);
@@ -193,12 +208,19 @@ u16 GetTrainerId(void)
     return gTrainerId;
 }
 
-/*
+void EnableVCountIntrAtLine150(void)
+{
+    u16 gpuReg = GetGpuReg(0x4) & 0xFF | 0x9600;
+
+    SetGpuReg(4, gpuReg | 0x20);
+    EnableInterrupts(0x4); // please use IRQ_MASK_VCOUNT
+}
+
 void InitKeys(void)
 {
     gKeyRepeatContinueDelay = 5;
     gKeyRepeatStartDelay = 40;
-
+    
     gMain.heldKeys = 0;
     gMain.newKeys = 0;
     gMain.newAndRepeatedKeys = 0;
@@ -237,7 +259,7 @@ static void ReadKeys(void)
     gMain.heldKeys = gMain.heldKeysRaw;
 
     // Remap L to A if the L=A option is enabled.
-    if (gSaveBlock2.optionsButtonMode == 2)
+    if (gSaveBlock2Ptr->optionsButtonMode == 2)
     {
         if (gMain.newKeys & L_BUTTON)
             gMain.newKeys |= A_BUTTON;
@@ -250,7 +272,7 @@ static void ReadKeys(void)
         gMain.watchedKeysPressed = TRUE;
 }
 
-static void InitIntrHandlers(void)
+void InitIntrHandlers(void)
 {
     int i;
 
@@ -266,9 +288,8 @@ static void InitIntrHandlers(void)
     SetSerialCallback(NULL);
 
     REG_IME = 1;
-    REG_IE = INTR_FLAG_VBLANK;
-    REG_DISPSTAT = DISPSTAT_VBLANK_INTR;
-    REG_IE |= INTR_FLAG_VBLANK;
+    
+    EnableInterrupts(0x1);
 }
 
 void SetVBlankCallback(IntrCallback callback)
@@ -286,43 +307,146 @@ void SetVCountCallback(IntrCallback callback)
     gMain.vcountCallback = callback;
 }
 
+void RestoreSerialTimer3IntrHandlers(void)
+{
+    gIntrTable[1] = SerialIntr;
+    gIntrTable[2] = Timer3Intr;
+}
+
 void SetSerialCallback(IntrCallback callback)
 {
     gMain.serialCallback = callback;
 }
 
+extern void CopyBufferedValuesToGpuRegs(void);
+extern void ProcessDma3Requests(void);
+
+#ifdef NONMATCHING
 static void VBlankIntr(void)
 {
-    u16 savedIme;
-
-    if (!gLinkVSyncDisabled)
+    if (gLinkVSyncDisabled != FALSE)
         LinkVSync();
+    else if(gUnknown_03002748 == FALSE)
+        sub_800B9B8();
 
-    savedIme = REG_IME;
-    REG_IME = 0;
-    m4aSoundVSync();
-    REG_IME = savedIme;
-
-    gMain.vblankCounter1++;
+    gMain.vblankCounter1++; // in the original asm, gMain is put into r0 for this addition and then preserved in r4 after it. the compiler wants to skip that and put it in either r4 or r1.
 
+    if(gUnknown_0203CF5C.value > 0)
+        if(gUnknown_0203CF5C.value < 0xFFFFFFFF)
+            gUnknown_0203CF5C.value++;
+    
     if (gMain.vblankCallback)
         gMain.vblankCallback();
 
     gMain.vblankCounter2++;
+    
+    CopyBufferedValuesToGpuRegs();
+    ProcessDma3Requests();
 
     gPcmDmaCounter = gSoundInfo.pcmDmaCounter;
 
     m4aSoundMain();
-    sub_800C35C();
-    Random();
+    sub_8033648();
+
+    if(!gMain.inBattle || (gBattleTypeFlags & 0x013F0102) == 0)
+        Random();
 
-    INTR_CHECK |= INTR_FLAG_VBLANK;
+    sub_800E174();
+
+    gIntrCheck |= INTR_FLAG_VBLANK;
     gMain.intrCheck |= INTR_FLAG_VBLANK;
 }
+#else
+__attribute__((naked))
+static void VBlankIntr(void)
+{
+    asm(".syntax unified\n\
+    push {r4,lr}\n\
+    ldr r0, =gLinkVSyncDisabled\n\
+    ldrb r0, [r0]\n\
+    cmp r0, 0\n\
+    beq _0800074C\n\
+    bl LinkVSync\n\
+    b _08000758\n\
+    .pool\n\
+_0800074C:\n\
+    ldr r0, =gUnknown_03002748\n\
+    ldrb r0, [r0]\n\
+    cmp r0, 0\n\
+    bne _08000758\n\
+    bl sub_800B9B8\n\
+_08000758:\n\
+    ldr r0, =gMain\n\
+    ldr r1, [r0, 0x20]\n\
+    adds r1, 0x1\n\
+    str r1, [r0, 0x20]\n\
+    ldr r1, =gUnknown_0203CF5C\n\
+    ldr r1, [r1]\n\
+    adds r4, r0, 0\n\
+    cmp r1, 0\n\
+    beq _08000778\n\
+    ldr r2, [r1]\n\
+    movs r0, 0x2\n\
+    negs r0, r0\n\
+    cmp r2, r0\n\
+    bhi _08000778\n\
+    adds r0, r2, 0x1\n\
+    str r0, [r1]\n\
+_08000778:\n\
+    ldr r0, [r4, 0xC]\n\
+    cmp r0, 0\n\
+    beq _08000782\n\
+    bl _call_via_r0\n\
+_08000782:\n\
+    ldr r0, [r4, 0x24]\n\
+    adds r0, 0x1\n\
+    str r0, [r4, 0x24]\n\
+    bl CopyBufferedValuesToGpuRegs\n\
+    bl ProcessDma3Requests\n\
+    ldr r1, =gPcmDmaCounter\n\
+    ldr r0, =gSoundInfo\n\
+    ldrb r0, [r0, 0x4]\n\
+    strb r0, [r1]\n\
+    bl m4aSoundMain\n\
+    bl sub_8033648\n\
+    ldr r1, =0x00000439\n\
+    adds r0, r4, r1\n\
+    ldrb r1, [r0]\n\
+    movs r0, 0x2\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    beq _080007BA\n\
+    ldr r0, =gBattleTypeFlags\n\
+    ldr r0, [r0]\n\
+    ldr r1, =0x013f0102\n\
+    ands r0, r1\n\
+    cmp r0, 0\n\
+    bne _080007BE\n\
+_080007BA:\n\
+    bl Random\n\
+_080007BE:\n\
+    bl sub_800E174\n\
+    ldr r2, =gIntrCheck\n\
+    ldrh r0, [r2]\n\
+    movs r1, 0x1\n\
+    orrs r0, r1\n\
+    strh r0, [r2]\n\
+    ldr r0, =gMain\n\
+    ldrh r2, [r0, 0x1C]\n\
+    ldrh r3, [r0, 0x1C]\n\
+    orrs r1, r2\n\
+    strh r1, [r0, 0x1C]\n\
+    pop {r4}\n\
+    pop {r0}\n\
+    bx r0\n\
+    .pool\n\
+    .syntax divided");
+}
+#endif
 
-void InitFlashTimer(void)
+void StartFlashMemoryTimer(void)
 {
-    SetFlashTimerIntr(2, gFlashTimerIntrFunc);
+    SetFlashTimerIntr(2, gIntrTable + 0x7);
 }
 
 static void HBlankIntr(void)
@@ -339,7 +463,8 @@ static void VCountIntr(void)
     if (gMain.vcountCallback)
         gMain.vcountCallback();
 
-    INTR_CHECK |= INTR_FLAG_VCOUNT;
+    m4aSoundVSync();
+    gIntrCheck |= INTR_FLAG_VCOUNT;
     gMain.intrCheck |= INTR_FLAG_VCOUNT;
 }
 
@@ -348,7 +473,7 @@ static void SerialIntr(void)
     if (gMain.serialCallback)
         gMain.serialCallback();
 
-    INTR_CHECK |= INTR_FLAG_SERIAL;
+    gIntrCheck |= INTR_FLAG_SERIAL;
     gMain.intrCheck |= INTR_FLAG_SERIAL;
 }
 
@@ -358,7 +483,19 @@ static void IntrDummy(void)
 static void WaitForVBlank(void)
 {
     gMain.intrCheck &= ~INTR_FLAG_VBLANK;
-    VBlankIntrWait();
+    
+    while(!(gMain.intrCheck & 0x1))
+        ;
+}
+
+void sub_80008DC(u32 var)
+{
+    gUnknown_0203CF5C.value = var;
+}
+
+void sub_80008E8(void)
+{
+    gUnknown_0203CF5C.value = 0;
 }
 
 void DoSoftReset(void)
@@ -377,4 +514,3 @@ void ClearPokemonCrySongs(void)
 {
     CpuFill16(0, gPokemonCrySongs, MAX_POKEMON_CRIES * sizeof(struct PokemonCrySong));
 }
-*/
\ No newline at end of file
diff --git a/sym_common.txt b/sym_common.txt
index f93a021cb..963686122 100644
--- a/sym_common.txt
+++ b/sym_common.txt
@@ -1,6 +1,6 @@
 	.space 0x8
 
-gUnknown_030022B0: @ 30022B0
+gKeyRepeatStartDelay: @ 30022B0
 	.space 0x4
 
 gUnknown_030022B4: @ 30022B4
@@ -21,28 +21,22 @@ gUnknown_030024F8: @ 30024F8
 gUnknown_030026F8: @ 30026F8
 	.space 0x4
 
-gUnknown_030026FC: @ 30026FC
+gKeyRepeatContinueDelay: @ 30026FC
 	.space 0x4
 
 gSoftResetDisabled: @ 3002700
 	.space 0x10
 
-gUnknown_03002710: @ 3002710
-	.space 0x4
-
-gUnknown_03002714: @ 3002714
-	.space 0x18
-
-gUnknown_0300272C: @ 300272C
-	.space 0x1C
+gIntrTable: @ 3002710
+	.space 0x38
 
 gUnknown_03002748: @ 3002748
 	.space 0x8
 
-gUnknown_03002750: @ 3002750
+IntrMain_Buffer: @ 3002750
 	.space 0x800
 
-gUnknown_03002F50: @ 3002F50
+gPcmDmaCounter: @ 3002F50
 	.space 0x4
 
 gUnknown_03002F54: @ 3002F54
@@ -135,7 +129,7 @@ gUnknown_030030F4: @ 30030F4
 gUnknown_030030F8: @ 30030F8
 	.space 0x4
 
-gUnknown_030030FC: @ 30030FC
+gLinkVSyncDisabled: @ 30030FC
 	.space 0x4
 
 gUnknown_03003100: @ 3003100
@@ -531,7 +525,8 @@ gUnknown_03007F00: @ 3007F00
 gUnknown_03007FF0: @ 3007FF0
 	.space 0x8
 
-gUnknown_03007FF8: @ 3007FF8
+gIntrCheck: @ 3007FF8
 	.space 0x4
 
 gUnknown_03007FFC: @ 3007FFC
+	.space 0x4