split asm files

1 files changed, 1153 insertions, 0 deletions

diff --git a/asm/field_camera.s b/asm/field_camera.s
new file mode 100644
index 000000000..47761244d
--- /dev/null
+++ b/asm/field_camera.s
@@ -0,0 +1,1153 @@
+	.include "asm/macros.inc"
+	.include "constants/constants.inc"
+
+	.syntax unified
+
+	.text
+
+	thumb_func_start move_tilemap_camera_to_upper_left_corner_
+@ void move_tilemap_camera_to_upper_left_corner_(struc_28 *a1)
+move_tilemap_camera_to_upper_left_corner_: @ 8089B58
+	movs r1, 0
+	strb r1, [r0, 0x2]
+	strb r1, [r0, 0x3]
+	strb r1, [r0]
+	strb r1, [r0, 0x1]
+	movs r1, 0x1
+	strb r1, [r0, 0x4]
+	bx lr
+	thumb_func_end move_tilemap_camera_to_upper_left_corner_
+
+	thumb_func_start tilemap_move_something
+@ void tilemap_move_something(struct struc_28 *, u8 deltaX, u8 deltaY)
+tilemap_move_something: @ 8089B68
+	ldrb r3, [r0, 0x2]
+	adds r3, r1
+	strb r3, [r0, 0x2]
+	ldrb r1, [r0, 0x2]
+	movs r3, 0x1F
+	ands r1, r3
+	strb r1, [r0, 0x2]
+	ldrb r1, [r0, 0x3]
+	adds r1, r2
+	strb r1, [r0, 0x3]
+	ldrb r1, [r0, 0x3]
+	ands r1, r3
+	strb r1, [r0, 0x3]
+	bx lr
+	thumb_func_end tilemap_move_something
+
+	thumb_func_start coords8_add
+@ void coords8_add(struct coords8 *coords, u8 x, u8 y)
+coords8_add: @ 8089B84
+	ldrb r3, [r0]
+	adds r3, r1
+	strb r3, [r0]
+	ldrb r1, [r0, 0x1]
+	adds r1, r2
+	strb r1, [r0, 0x1]
+	bx lr
+	thumb_func_end coords8_add
+
+	thumb_func_start move_tilemap_camera_to_upper_left_corner
+@ void move_tilemap_camera_to_upper_left_corner()
+move_tilemap_camera_to_upper_left_corner: @ 8089B94
+	push {lr}
+	ldr r0, =0x03000e20
+	bl move_tilemap_camera_to_upper_left_corner_
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end move_tilemap_camera_to_upper_left_corner
+
+	thumb_func_start FieldUpdateBgTilemapScroll
+@ void FieldUpdateBgTilemapScroll()
+FieldUpdateBgTilemapScroll: @ 8089BA4
+	push {r4,r5,lr}
+	ldr r1, =0x03000e20
+	ldr r0, =0x03000e28
+	movs r2, 0
+	ldrsh r5, [r0, r2]
+	ldrb r0, [r1]
+	adds r5, r0
+	ldr r0, =0x03000e2a
+	movs r2, 0
+	ldrsh r4, [r0, r2]
+	ldrb r1, [r1, 0x1]
+	adds r4, r1
+	adds r4, 0x8
+	lsls r5, 16
+	lsrs r5, 16
+	movs r0, 0x14
+	adds r1, r5, 0
+	bl SetGpuReg
+	lsls r4, 16
+	lsrs r4, 16
+	movs r0, 0x16
+	adds r1, r4, 0
+	bl SetGpuReg
+	movs r0, 0x18
+	adds r1, r5, 0
+	bl SetGpuReg
+	movs r0, 0x1A
+	adds r1, r4, 0
+	bl SetGpuReg
+	movs r0, 0x1C
+	adds r1, r5, 0
+	bl SetGpuReg
+	movs r0, 0x1E
+	adds r1, r4, 0
+	bl SetGpuReg
+	pop {r4,r5}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end FieldUpdateBgTilemapScroll
+
+	thumb_func_start sub_8089C08
+sub_8089C08: @ 8089C08
+	push {r4,lr}
+	ldr r3, =0x03000e20
+	ldr r2, =0x03000e28
+	ldrh r2, [r2]
+	ldrb r4, [r3]
+	adds r2, r4
+	strh r2, [r0]
+	ldr r0, =0x03000e2a
+	ldrh r0, [r0]
+	ldrb r3, [r3, 0x1]
+	adds r0, r3
+	adds r0, 0x8
+	strh r0, [r1]
+	pop {r4}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end sub_8089C08
+
+	thumb_func_start DrawWholeMapView
+@ void DrawWholeMapView()
+DrawWholeMapView: @ 8089C34
+	push {lr}
+	ldr r0, =0x03005d8c
+	ldr r1, [r0]
+	movs r2, 0
+	ldrsh r0, [r1, r2]
+	movs r2, 0x2
+	ldrsh r1, [r1, r2]
+	ldr r2, =0x02037318
+	ldr r2, [r2]
+	bl DrawWholeMapViewInternal
+	ldr r1, =0x03000e20
+	movs r0, 0x1
+	strb r0, [r1, 0x4]
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end DrawWholeMapView
+
+	thumb_func_start DrawWholeMapViewInternal
+@ void DrawWholeMapViewInternal(s32 x, s32 y, struct mapdata_header *mapGrid)
+DrawWholeMapViewInternal: @ 8089C60
+	push {r4-r7,lr}
+	mov r7, r10
+	mov r6, r9
+	mov r5, r8
+	push {r5-r7}
+	sub sp, 0x4
+	mov r10, r0
+	mov r9, r1
+	mov r8, r2
+	movs r1, 0
+_08089C74:
+	ldr r2, =0x03000e20
+	ldrb r0, [r2, 0x3]
+	adds r0, r1, r0
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x1F
+	bls _08089C88
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r0, 24
+_08089C88:
+	lsls r6, r0, 5
+	movs r4, 0
+	adds r7, r1, 0x2
+	str r7, [sp]
+	lsrs r5, r1, 1
+_08089C92:
+	ldr r1, =0x03000e20
+	ldrb r0, [r1, 0x2]
+	adds r0, r4, r0
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x1F
+	bls _08089CA6
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r0, 24
+_08089CA6:
+	adds r1, r6, r0
+	lsls r1, 16
+	lsrs r1, 16
+	lsrs r2, r4, 1
+	add r2, r10
+	mov r0, r8
+	mov r7, r9
+	adds r3, r7, r5
+	bl DrawMetatileAt
+	adds r0, r4, 0x2
+	lsls r0, 24
+	lsrs r4, r0, 24
+	cmp r4, 0x1F
+	bls _08089C92
+	ldr r1, [sp]
+	lsls r0, r1, 24
+	lsrs r1, r0, 24
+	cmp r1, 0x1F
+	bls _08089C74
+	add sp, 0x4
+	pop {r3-r5}
+	mov r8, r3
+	mov r9, r4
+	mov r10, r5
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end DrawWholeMapViewInternal
+
+	thumb_func_start RedrawMapSlicesForCameraUpdate
+@ void RedrawMapSlicesForCameraUpdate(struct struc_28 *, u8 deltaX, u8 deltaY)
+RedrawMapSlicesForCameraUpdate: @ 8089CE4
+	push {r4-r7,lr}
+	adds r5, r0, 0
+	adds r6, r1, 0
+	adds r7, r2, 0
+	ldr r0, =0x02037318
+	ldr r4, [r0]
+	cmp r6, 0
+	ble _08089CFC
+	adds r0, r5, 0
+	adds r1, r4, 0
+	bl RedrawMapSliceWest
+_08089CFC:
+	cmp r6, 0
+	bge _08089D08
+	adds r0, r5, 0
+	adds r1, r4, 0
+	bl RedrawMapSliceEast
+_08089D08:
+	cmp r7, 0
+	ble _08089D14
+	adds r0, r5, 0
+	adds r1, r4, 0
+	bl RedrawMapSliceNorth
+_08089D14:
+	cmp r7, 0
+	bge _08089D20
+	adds r0, r5, 0
+	adds r1, r4, 0
+	bl RedrawMapSliceSouth
+_08089D20:
+	movs r0, 0x1
+	strb r0, [r5, 0x4]
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RedrawMapSlicesForCameraUpdate
+
+	thumb_func_start RedrawMapSliceNorth
+@ void RedrawMapSliceNorth(struct struc_28 *, struct mapdata_header *mapGrid)
+RedrawMapSliceNorth: @ 8089D30
+	push {r4-r7,lr}
+	adds r5, r0, 0
+	adds r7, r1, 0
+	ldrb r0, [r5, 0x3]
+	adds r0, 0x1C
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x1F
+	bls _08089D48
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r0, 24
+_08089D48:
+	lsls r6, r0, 5
+	movs r4, 0
+_08089D4C:
+	ldrb r0, [r5, 0x2]
+	adds r0, r4, r0
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x1F
+	bls _08089D5E
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r0, 24
+_08089D5E:
+	adds r1, r6, r0
+	lsls r1, 16
+	lsrs r1, 16
+	ldr r0, =0x03005d8c
+	ldr r3, [r0]
+	movs r0, 0
+	ldrsh r2, [r3, r0]
+	lsrs r0, r4, 1
+	adds r2, r0
+	movs r0, 0x2
+	ldrsh r3, [r3, r0]
+	adds r3, 0xE
+	adds r0, r7, 0
+	bl DrawMetatileAt
+	adds r0, r4, 0x2
+	lsls r0, 24
+	lsrs r4, r0, 24
+	cmp r4, 0x1F
+	bls _08089D4C
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RedrawMapSliceNorth
+
+	thumb_func_start RedrawMapSliceSouth
+@ void RedrawMapSliceSouth(struct struc_28 *, struct mapdata_header *mapGrid)
+RedrawMapSliceSouth: @ 8089D90
+	push {r4-r7,lr}
+	adds r5, r0, 0
+	adds r7, r1, 0
+	ldrb r0, [r5, 0x3]
+	lsls r6, r0, 5
+	movs r4, 0
+_08089D9C:
+	ldrb r0, [r5, 0x2]
+	adds r0, r4, r0
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x1F
+	bls _08089DAE
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r0, 24
+_08089DAE:
+	adds r1, r6, r0
+	ldr r0, =0x03005d8c
+	ldr r3, [r0]
+	movs r0, 0
+	ldrsh r2, [r3, r0]
+	lsrs r0, r4, 1
+	adds r2, r0
+	movs r0, 0x2
+	ldrsh r3, [r3, r0]
+	adds r0, r7, 0
+	bl DrawMetatileAt
+	adds r0, r4, 0x2
+	lsls r0, 24
+	lsrs r4, r0, 24
+	cmp r4, 0x1F
+	bls _08089D9C
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RedrawMapSliceSouth
+
+	thumb_func_start RedrawMapSliceEast
+@ void RedrawMapSliceEast(struct struc_28 *, struct mapdata_header *mapGrid)
+RedrawMapSliceEast: @ 8089DDC
+	push {r4-r7,lr}
+	mov r7, r8
+	push {r7}
+	adds r5, r0, 0
+	mov r8, r1
+	ldrb r6, [r5, 0x2]
+	movs r4, 0
+_08089DEA:
+	ldrb r0, [r5, 0x3]
+	adds r0, r4, r0
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x1F
+	bls _08089DFC
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r0, 24
+_08089DFC:
+	lsls r1, r0, 5
+	adds r1, r6
+	lsls r1, 16
+	lsrs r1, 16
+	ldr r0, =0x03005d8c
+	ldr r0, [r0]
+	movs r3, 0
+	ldrsh r2, [r0, r3]
+	movs r7, 0x2
+	ldrsh r3, [r0, r7]
+	lsrs r0, r4, 1
+	adds r3, r0
+	mov r0, r8
+	bl DrawMetatileAt
+	adds r0, r4, 0x2
+	lsls r0, 24
+	lsrs r4, r0, 24
+	cmp r4, 0x1F
+	bls _08089DEA
+	pop {r3}
+	mov r8, r3
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RedrawMapSliceEast
+
+	thumb_func_start RedrawMapSliceWest
+@ void RedrawMapSliceWest(struct struc_28 *, struct mapdata_header *mapGrid)
+RedrawMapSliceWest: @ 8089E34
+	push {r4-r7,lr}
+	mov r7, r8
+	push {r7}
+	adds r6, r0, 0
+	mov r8, r1
+	ldrb r0, [r6, 0x2]
+	adds r0, 0x1C
+	lsls r0, 24
+	lsrs r5, r0, 24
+	cmp r5, 0x1F
+	bls _08089E52
+	adds r0, r5, 0
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r5, r0, 24
+_08089E52:
+	movs r4, 0
+_08089E54:
+	ldrb r0, [r6, 0x3]
+	adds r0, r4, r0
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x1F
+	bls _08089E66
+	subs r0, 0x20
+	lsls r0, 24
+	lsrs r0, 24
+_08089E66:
+	lsls r1, r0, 5
+	adds r1, r5
+	lsls r1, 16
+	lsrs r1, 16
+	ldr r0, =0x03005d8c
+	ldr r0, [r0]
+	movs r3, 0
+	ldrsh r2, [r0, r3]
+	adds r2, 0xE
+	movs r7, 0x2
+	ldrsh r3, [r0, r7]
+	lsrs r0, r4, 1
+	adds r3, r0
+	mov r0, r8
+	bl DrawMetatileAt
+	adds r0, r4, 0x2
+	lsls r0, 24
+	lsrs r4, r0, 24
+	cmp r4, 0x1F
+	bls _08089E54
+	pop {r3}
+	mov r8, r3
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end RedrawMapSliceWest
+
+	thumb_func_start CurrentMapDrawMetatileAt
+@ void CurrentMapDrawMetatileAt(u32 x, u32 y)
+CurrentMapDrawMetatileAt: @ 8089EA0
+	push {r4-r6,lr}
+	adds r4, r0, 0
+	adds r5, r1, 0
+	ldr r6, =0x03000e20
+	adds r0, r6, 0
+	adds r1, r4, 0
+	adds r2, r5, 0
+	bl MapPosToBgTilemapOffset
+	adds r1, r0, 0
+	cmp r1, 0
+	blt _08089ECC
+	ldr r0, =0x02037318
+	ldr r0, [r0]
+	lsls r1, 16
+	lsrs r1, 16
+	adds r2, r4, 0
+	adds r3, r5, 0
+	bl DrawMetatileAt
+	movs r0, 0x1
+	strb r0, [r6, 0x4]
+_08089ECC:
+	pop {r4-r6}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end CurrentMapDrawMetatileAt
+
+	thumb_func_start DrawDoorMetatileAt
+@ void DrawDoorMetatileAt(u32 x, u32 y, u16 *metatile)
+DrawDoorMetatileAt: @ 8089EDC
+	push {r4-r6,lr}
+	adds r3, r0, 0
+	adds r4, r1, 0
+	adds r5, r2, 0
+	ldr r6, =0x03000e20
+	adds r0, r6, 0
+	adds r1, r3, 0
+	adds r2, r4, 0
+	bl MapPosToBgTilemapOffset
+	cmp r0, 0
+	blt _08089F04
+	lsls r2, r0, 16
+	lsrs r2, 16
+	movs r0, 0x1
+	adds r1, r5, 0
+	bl DrawMetatile
+	movs r0, 0x1
+	strb r0, [r6, 0x4]
+_08089F04:
+	pop {r4-r6}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end DrawDoorMetatileAt
+
+	thumb_func_start DrawMetatileAt
+@ void DrawMetatileAt(struct mapdata_header *mapGrid, u16 offset, s32 x, s32 y)
+DrawMetatileAt: @ 8089F10
+	push {r4-r7,lr}
+	mov r7, r8
+	push {r7}
+	adds r5, r0, 0
+	adds r6, r2, 0
+	adds r7, r3, 0
+	lsls r1, 16
+	lsrs r1, 16
+	mov r8, r1
+	adds r0, r6, 0
+	adds r1, r7, 0
+	bl MapGridGetMetatileIdAt
+	lsls r0, 16
+	lsrs r4, r0, 16
+	movs r0, 0x80
+	lsls r0, 3
+	cmp r4, r0
+	bls _08089F38
+	movs r4, 0
+_08089F38:
+	ldr r0, =0x000001ff
+	cmp r4, r0
+	bhi _08089F48
+	ldr r0, [r5, 0x10]
+	ldr r5, [r0, 0xC]
+	b _08089F54
+	.pool
+_08089F48:
+	ldr r0, [r5, 0x14]
+	ldr r5, [r0, 0xC]
+	ldr r1, =0xfffffe00
+	adds r0, r4, r1
+	lsls r0, 16
+	lsrs r4, r0, 16
+_08089F54:
+	adds r0, r6, 0
+	adds r1, r7, 0
+	bl MapGridGetMetatileLayerTypeAt
+	lsls r0, 24
+	lsrs r0, 24
+	lsls r1, r4, 4
+	adds r1, r5, r1
+	mov r2, r8
+	bl DrawMetatile
+	pop {r3}
+	mov r8, r3
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end DrawMetatileAt
+
+	thumb_func_start DrawMetatile
+@ void DrawMetatile(u32 layerType, u16 *metatile, u16 offset)
+DrawMetatile: @ 8089F78
+	push {r4,lr}
+	adds r4, r1, 0
+	lsls r2, 16
+	lsrs r2, 16
+	cmp r0, 0x1
+	beq _08089FD0
+	cmp r0, 0x1
+	bgt _08089F8E
+	cmp r0, 0
+	beq _0808A030
+	b _0808A082
+_08089F8E:
+	cmp r0, 0x2
+	bne _0808A082
+	ldr r0, =0x03005da4
+	ldr r0, [r0]
+	lsls r3, r2, 1
+	adds r0, r3, r0
+	ldrh r1, [r4]
+	strh r1, [r0]
+	ldrh r1, [r4, 0x2]
+	strh r1, [r0, 0x2]
+	adds r2, r0, 0
+	adds r2, 0x40
+	ldrh r1, [r4, 0x4]
+	strh r1, [r2]
+	adds r0, 0x42
+	ldrh r1, [r4, 0x6]
+	strh r1, [r0]
+	ldr r0, =0x03005d9c
+	ldr r0, [r0]
+	adds r0, r3, r0
+	movs r2, 0
+	strh r2, [r0]
+	strh r2, [r0, 0x2]
+	adds r1, r0, 0
+	adds r1, 0x40
+	strh r2, [r1]
+	adds r0, 0x42
+	strh r2, [r0]
+	b _0808A066
+	.pool
+_08089FD0:
+	ldr r0, =0x03005da4
+	ldr r0, [r0]
+	lsls r3, r2, 1
+	adds r0, r3, r0
+	ldrh r1, [r4]
+	strh r1, [r0]
+	ldrh r1, [r4, 0x2]
+	strh r1, [r0, 0x2]
+	adds r2, r0, 0
+	adds r2, 0x40
+	ldrh r1, [r4, 0x4]
+	strh r1, [r2]
+	adds r0, 0x42
+	ldrh r1, [r4, 0x6]
+	strh r1, [r0]
+	ldr r0, =0x03005d9c
+	ldr r0, [r0]
+	adds r0, r3, r0
+	ldrh r1, [r4, 0x8]
+	strh r1, [r0]
+	ldrh r1, [r4, 0xA]
+	strh r1, [r0, 0x2]
+	adds r2, r0, 0
+	adds r2, 0x40
+	ldrh r1, [r4, 0xC]
+	strh r1, [r2]
+	adds r0, 0x42
+	ldrh r1, [r4, 0xE]
+	strh r1, [r0]
+	ldr r0, =0x03005da0
+	ldr r0, [r0]
+	adds r3, r0
+	movs r1, 0
+	strh r1, [r3]
+	strh r1, [r3, 0x2]
+	adds r0, r3, 0
+	adds r0, 0x40
+	strh r1, [r0]
+	adds r3, 0x42
+	strh r1, [r3]
+	b _0808A082
+	.pool
+_0808A030:
+	ldr r0, =0x03005da4
+	ldr r0, [r0]
+	lsls r3, r2, 1
+	adds r0, r3, r0
+	ldr r1, =0x00003014
+	adds r2, r1, 0
+	strh r2, [r0]
+	strh r2, [r0, 0x2]
+	adds r1, r0, 0
+	adds r1, 0x40
+	strh r2, [r1]
+	adds r0, 0x42
+	strh r2, [r0]
+	ldr r0, =0x03005d9c
+	ldr r0, [r0]
+	adds r0, r3, r0
+	ldrh r1, [r4]
+	strh r1, [r0]
+	ldrh r1, [r4, 0x2]
+	strh r1, [r0, 0x2]
+	adds r2, r0, 0
+	adds r2, 0x40
+	ldrh r1, [r4, 0x4]
+	strh r1, [r2]
+	adds r0, 0x42
+	ldrh r1, [r4, 0x6]
+	strh r1, [r0]
+_0808A066:
+	ldr r0, =0x03005da0
+	ldr r0, [r0]
+	adds r3, r0
+	ldrh r0, [r4, 0x8]
+	strh r0, [r3]
+	ldrh r0, [r4, 0xA]
+	strh r0, [r3, 0x2]
+	adds r1, r3, 0
+	adds r1, 0x40
+	ldrh r0, [r4, 0xC]
+	strh r0, [r1]
+	adds r3, 0x42
+	ldrh r0, [r4, 0xE]
+	strh r0, [r3]
+_0808A082:
+	movs r0, 0x1
+	bl schedule_bg_copy_tilemap_to_vram
+	movs r0, 0x2
+	bl schedule_bg_copy_tilemap_to_vram
+	movs r0, 0x3
+	bl schedule_bg_copy_tilemap_to_vram
+	pop {r4}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end DrawMetatile
+
+	thumb_func_start MapPosToBgTilemapOffset
+@ u32 MapPosToBgTilemapOffset(struct struc_28 *, u32 x, u32 y)
+MapPosToBgTilemapOffset: @ 808A0AC
+	push {r4,r5,lr}
+	adds r4, r0, 0
+	ldr r0, =0x03005d8c
+	ldr r3, [r0]
+	movs r5, 0
+	ldrsh r0, [r3, r5]
+	subs r1, r0
+	lsls r1, 1
+	cmp r1, 0x1F
+	bhi _0808A0D6
+	ldrb r0, [r4, 0x2]
+	adds r1, r0
+	cmp r1, 0x1F
+	ble _0808A0CA
+	subs r1, 0x20
+_0808A0CA:
+	movs r5, 0x2
+	ldrsh r0, [r3, r5]
+	subs r0, r2, r0
+	lsls r2, r0, 1
+	cmp r2, 0x1F
+	bls _0808A0E0
+_0808A0D6:
+	movs r0, 0x1
+	negs r0, r0
+	b _0808A0EE
+	.pool
+_0808A0E0:
+	ldrb r0, [r4, 0x3]
+	adds r2, r0
+	cmp r2, 0x1F
+	ble _0808A0EA
+	subs r2, 0x20
+_0808A0EA:
+	lsls r0, r2, 5
+	adds r0, r1
+_0808A0EE:
+	pop {r4,r5}
+	pop {r1}
+	bx r1
+	thumb_func_end MapPosToBgTilemapOffset
+
+	thumb_func_start CameraUpdateCallback
+@ void CameraUpdateCallback(struct CameraUpdateInfo *info)
+CameraUpdateCallback: @ 808A0F4
+	push {lr}
+	adds r3, r0, 0
+	ldr r2, [r3, 0x4]
+	cmp r2, 0
+	beq _0808A114
+	ldr r1, =0x02020630
+	lsls r0, r2, 4
+	adds r0, r2
+	lsls r0, 2
+	adds r0, r1
+	movs r2, 0x32
+	ldrsh r1, [r0, r2]
+	str r1, [r3, 0x8]
+	movs r1, 0x34
+	ldrsh r0, [r0, r1]
+	str r0, [r3, 0xC]
+_0808A114:
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end CameraUpdateCallback
+
+	thumb_func_start ResetCameraUpdateInfo
+@ void ResetCameraUpdateInfo()
+ResetCameraUpdateInfo: @ 808A11C
+	ldr r1, =0x03005dd0
+	movs r0, 0
+	str r0, [r1, 0x8]
+	str r0, [r1, 0xC]
+	str r0, [r1, 0x10]
+	str r0, [r1, 0x14]
+	str r0, [r1, 0x4]
+	str r0, [r1]
+	bx lr
+	.pool
+	thumb_func_end ResetCameraUpdateInfo
+
+	thumb_func_start InitCameraUpdateCallback
+@ u8 InitCameraUpdateCallback(u8 followedObjectId)
+InitCameraUpdateCallback: @ 808A134
+	push {r4,r5,lr}
+	lsls r0, 24
+	lsrs r5, r0, 24
+	ldr r4, =0x03005dd0
+	ldr r1, [r4, 0x4]
+	cmp r1, 0
+	beq _0808A150
+	lsls r0, r1, 4
+	adds r0, r1
+	lsls r0, 2
+	ldr r1, =0x02020630
+	adds r0, r1
+	bl RemoveObjectAndFreeTiles
+_0808A150:
+	adds r0, r5, 0
+	bl AddCameraObject
+	lsls r0, 24
+	lsrs r0, 24
+	str r0, [r4, 0x4]
+	ldr r0, =CameraUpdateCallback
+	str r0, [r4]
+	movs r0, 0
+	pop {r4,r5}
+	pop {r1}
+	bx r1
+	.pool
+	thumb_func_end InitCameraUpdateCallback
+
+	thumb_func_start CameraUpdate
+@ void CameraUpdate()
+CameraUpdate: @ 808A174
+	push {r4-r7,lr}
+	mov r7, r8
+	push {r7}
+	ldr r6, =0x03005dd0
+	ldr r1, [r6]
+	cmp r1, 0
+	beq _0808A188
+	adds r0, r6, 0
+	bl _call_via_r1
+_0808A188:
+	ldr r7, [r6, 0x8]
+	ldr r0, [r6, 0xC]
+	mov r8, r0
+	movs r4, 0
+	movs r5, 0
+	ldr r1, [r6, 0x10]
+	ldr r0, [r6, 0x14]
+	cmp r1, 0
+	bne _0808A1A6
+	cmp r7, 0
+	beq _0808A1A6
+	subs r4, 0x1
+	cmp r7, 0
+	ble _0808A1A6
+	movs r4, 0x1
+_0808A1A6:
+	cmp r0, 0
+	bne _0808A1BA
+	mov r2, r8
+	cmp r2, 0
+	beq _0808A1BA
+	movs r5, 0x1
+	negs r5, r5
+	cmp r2, 0
+	ble _0808A1BA
+	movs r5, 0x1
+_0808A1BA:
+	cmp r1, 0
+	beq _0808A1CC
+	cmn r1, r7
+	bne _0808A1CC
+	movs r4, 0x1
+	negs r4, r4
+	cmp r7, 0
+	ble _0808A1CC
+	movs r4, 0x1
+_0808A1CC:
+	cmp r0, 0
+	beq _0808A1E0
+	mov r3, r8
+	cmn r0, r3
+	bne _0808A1E0
+	movs r4, 0x1
+	negs r4, r4
+	cmp r3, 0
+	ble _0808A1E0
+	movs r4, 0x1
+_0808A1E0:
+	ldr r2, =0x03005dd0
+	ldr r0, [r2, 0x10]
+	adds r1, r0, r7
+	str r1, [r2, 0x10]
+	adds r0, r1, 0
+	cmp r1, 0
+	bge _0808A1F0
+	adds r0, 0xF
+_0808A1F0:
+	asrs r0, 4
+	lsls r0, 4
+	subs r0, r1, r0
+	str r0, [r2, 0x10]
+	ldr r0, [r2, 0x14]
+	mov r3, r8
+	adds r1, r0, r3
+	str r1, [r2, 0x14]
+	adds r0, r1, 0
+	cmp r1, 0
+	bge _0808A208
+	adds r0, 0xF
+_0808A208:
+	asrs r0, 4
+	lsls r0, 4
+	subs r0, r1, r0
+	str r0, [r2, 0x14]
+	cmp r4, 0
+	bne _0808A218
+	cmp r5, 0
+	beq _0808A24E
+_0808A218:
+	adds r0, r4, 0
+	adds r1, r5, 0
+	bl CameraMove
+	adds r0, r4, 0
+	adds r1, r5, 0
+	bl UpdateFieldObjectsForCameraUpdate
+	adds r0, r4, 0
+	adds r1, r5, 0
+	bl RotatingGatePuzzleCameraUpdate
+	bl ResetBerryTreeSparkleFlags
+	ldr r6, =0x03000e20
+	lsls r4, 1
+	lsls r5, 1
+	adds r0, r6, 0
+	adds r1, r4, 0
+	adds r2, r5, 0
+	bl tilemap_move_something
+	adds r0, r6, 0
+	adds r1, r4, 0
+	adds r2, r5, 0
+	bl RedrawMapSlicesForCameraUpdate
+_0808A24E:
+	ldr r0, =0x03000e20
+	adds r1, r7, 0
+	mov r2, r8
+	bl coords8_add
+	ldr r1, =0x03005dec
+	ldrh r0, [r1]
+	subs r0, r7
+	strh r0, [r1]
+	ldr r1, =0x03005de8
+	ldrh r0, [r1]
+	mov r2, r8
+	subs r0, r2
+	strh r0, [r1]
+	pop {r3}
+	mov r8, r3
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end CameraUpdate
+
+	thumb_func_start sub_808A284
+sub_808A284: @ 808A284
+	push {r4,r5,lr}
+	adds r4, r0, 0
+	adds r5, r1, 0
+	bl CameraMove
+	lsls r0, r4, 16
+	asrs r0, 16
+	lsls r1, r5, 16
+	asrs r1, 16
+	bl UpdateFieldObjectsForCameraUpdate
+	bl DrawWholeMapView
+	ldr r1, =0x03005dec
+	lsls r4, 4
+	ldrh r0, [r1]
+	subs r0, r4
+	strh r0, [r1]
+	ldr r1, =0x03005de8
+	lsls r5, 4
+	ldrh r0, [r1]
+	subs r0, r5
+	strh r0, [r1]
+	pop {r4,r5}
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end sub_808A284
+
+	thumb_func_start SetCameraPanningCallback
+@ void SetCameraPanningCallback(void ( *callback)())
+SetCameraPanningCallback: @ 808A2C0
+	ldr r1, =0x03000e30
+	str r0, [r1]
+	bx lr
+	.pool
+	thumb_func_end SetCameraPanningCallback
+
+	thumb_func_start SetCameraPanning
+@ void SetCameraPanning(s16 x, s16 y)
+SetCameraPanning: @ 808A2CC
+	ldr r2, =0x03000e28
+	strh r0, [r2]
+	ldr r0, =0x03000e2a
+	lsls r1, 16
+	asrs r1, 16
+	adds r1, 0x20
+	strh r1, [r0]
+	bx lr
+	.pool
+	thumb_func_end SetCameraPanning
+
+	thumb_func_start InstallCameraPanAheadCallback
+@ void InstallCameraPanAheadCallback()
+InstallCameraPanAheadCallback: @ 808A2E4
+	ldr r1, =0x03000e30
+	ldr r0, =CameraPanningCB_PanAhead
+	str r0, [r1]
+	ldr r1, =0x03000e2c
+	movs r0, 0
+	strb r0, [r1]
+	ldr r1, =0x03000e28
+	movs r0, 0
+	strh r0, [r1]
+	ldr r1, =0x03000e2a
+	movs r0, 0x20
+	strh r0, [r1]
+	bx lr
+	.pool
+	thumb_func_end InstallCameraPanAheadCallback
+
+	thumb_func_start UpdateCameraPanning
+@ void UpdateCameraPanning()
+UpdateCameraPanning: @ 808A314
+	push {lr}
+	ldr r0, =0x03000e30
+	ldr r0, [r0]
+	cmp r0, 0
+	beq _0808A322
+	bl _call_via_r0
+_0808A322:
+	ldr r2, =0x02021bbc
+	ldr r0, =0x03005dec
+	ldr r1, =0x03000e28
+	ldrh r0, [r0]
+	ldrh r1, [r1]
+	subs r0, r1
+	strh r0, [r2]
+	ldr r2, =0x02021bbe
+	ldr r0, =0x03005de8
+	ldr r1, =0x03000e2a
+	ldrh r0, [r0]
+	ldrh r1, [r1]
+	subs r0, r1
+	subs r0, 0x8
+	strh r0, [r2]
+	pop {r0}
+	bx r0
+	.pool
+	thumb_func_end UpdateCameraPanning
+
+	thumb_func_start CameraPanningCB_PanAhead
+@ void CameraPanningCB_PanAhead()
+CameraPanningCB_PanAhead: @ 808A360
+	push {lr}
+	ldr r0, =0x02037348
+	ldrb r0, [r0]
+	cmp r0, 0
+	bne _0808A374
+	bl InstallCameraPanAheadCallback
+	b _0808A3FC
+	.pool
+_0808A374:
+	ldr r0, =0x02037590
+	ldrb r0, [r0, 0x3]
+	cmp r0, 0x1
+	bne _0808A394
+	ldr r0, =0x03000e2c
+	ldrb r1, [r0]
+	movs r2, 0x1
+	eors r1, r2
+	strb r1, [r0]
+	cmp r1, 0
+	beq _0808A3FC
+	b _0808A39A
+	.pool
+_0808A394:
+	ldr r1, =0x03000e2c
+	movs r0, 0
+	strb r0, [r1]
+_0808A39A:
+	bl player_get_direction_upper_nybble
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0x2
+	bne _0808A3C4
+	ldr r2, =0x03000e2a
+	ldrh r3, [r2]
+	movs r0, 0
+	ldrsh r1, [r2, r0]
+	movs r0, 0x8
+	negs r0, r0
+	cmp r1, r0
+	ble _0808A3FC
+	subs r0, r3, 0x2
+	b _0808A3FA
+	.pool
+_0808A3C4:
+	cmp r0, 0x1
+	bne _0808A3E0
+	ldr r1, =0x03000e2a
+	ldrh r2, [r1]
+	movs r3, 0
+	ldrsh r0, [r1, r3]
+	cmp r0, 0x47
+	bgt _0808A3FC
+	adds r0, r2, 0x2
+	strh r0, [r1]
+	b _0808A3FC
+	.pool
+_0808A3E0:
+	ldr r2, =0x03000e2a
+	ldrh r0, [r2]
+	movs r3, 0
+	ldrsh r1, [r2, r3]
+	cmp r1, 0x1F
+	bgt _0808A3F4
+	adds r0, 0x2
+	b _0808A3FA
+	.pool
+_0808A3F4:
+	cmp r1, 0x20
+	ble _0808A3FC
+	subs r0, 0x2
+_0808A3FA:
+	strh r0, [r2]
+_0808A3FC:
+	pop {r0}
+	bx r0
+	thumb_func_end CameraPanningCB_PanAhead
+
+	.align 2, 0 @ Don't pad with nop.