pokeemerald/asm/gpu_bg.s

	thumb_func_start gpu_init_bgs
; void gpu_init_bgs()
gpu_init_bgs: ; 80012F0
	push {lr}
	bl gpu_reset_bg_configs
	ldr r1, =0x030008e0
	movs r0, 0
	strh r0, [r1, 0x10]
	bl gpu_sync_text_mode_and_hide_bgs
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_init_bgs

	thumb_func_start gpu_set_bg_mode
; void gpu_set_bg_mode(u8 bg_mode)
gpu_set_bg_mode: ; 8001308
	lsls r0, 24
	lsrs r0, 24
	ldr r3, =0x030008e0
	ldrh r2, [r3, 0x10]
	ldr r1, =0x0000fff8
	ands r1, r2
	orrs r1, r0
	strh r1, [r3, 0x10]
	bx lr
	.align 2, 0
	.pool
	thumb_func_end gpu_set_bg_mode

	thumb_func_start gpu_get_bg_mode
; u8 gpu_get_bg_mode()
gpu_get_bg_mode: ; 8001324
	ldr r0, =0x030008e0
	ldrb r1, [r0, 0x10]
	movs r0, 0x7
	ands r0, r1
	bx lr
	.align 2, 0
	.pool
	thumb_func_end gpu_get_bg_mode

	thumb_func_start gpu_reset_bg_configs
; void gpu_reset_bg_configs()
gpu_reset_bg_configs: ; 8001334
	push {lr}
	ldr r2, =0x030008e0
	ldr r0, =gBgConfigZeroValue
	ldr r0, [r0]
	adds r1, r2, 0
	adds r1, 0xC
@08001340:
	str r0, [r1]
	subs r1, 0x4
	cmp r1, r2
	bge @08001340
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_reset_bg_configs

	thumb_func_start sub_8001354
sub_8001354: ; 8001354
	push {r4,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	adds r0, r4, 0
	bl is_invalid_bg_id
	lsls r0, 24
	cmp r0, 0
	bne @08001372
	ldr r1, =0x030008e0
	lsls r0, r4, 2
	adds r0, r1
	ldr r1, =gBgConfigZeroValue
	ldr r1, [r1]
	str r1, [r0]
@08001372:
	pop {r4}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end sub_8001354

	thumb_func_start gpu_bg_config_set_fields
; void gpu_bg_config_set_fields(u8 bg_id, u8 character_base_block, u8 screen_base_block, u8 screen_size, u8 palette_size_select, u8 priority, u8 mosaic, u8 wraparound)
gpu_bg_config_set_fields: ; 8001380
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x10
	ldr r4, [sp, 0x30]
	ldr r5, [sp, 0x34]
	ldr r6, [sp, 0x38]
	mov r12, r6
	ldr r6, [sp, 0x3C]
	mov r8, r6
	lsls r0, 24
	lsrs r7, r0, 24
	str r7, [sp]
	lsls r1, 24
	lsrs r1, 24
	mov r10, r1
	lsls r2, 24
	lsrs r6, r2, 24
	lsls r3, 24
	lsrs r3, 24
	mov r9, r3
	lsls r4, 24
	lsrs r4, 24
	str r4, [sp, 0x4]
	lsls r5, 24
	lsrs r5, 24
	mov r0, r12
	lsls r0, 24
	lsrs r4, r0, 24
	mov r1, r8
	lsls r1, 24
	lsrs r1, 24
	str r1, [sp, 0xC]
	adds r0, r7, 0
	bl is_invalid_bg_id
	lsls r0, 24
	lsrs r0, 24
	mov r12, r0
	cmp r0, 0
	bne @08001498
	ldr r2, =0x030008e0
	mov r8, r2
	mov r0, r10
	cmp r0, 0xFF
	beq @080013F4
	lsls r2, r7, 2
	add r2, r8
	movs r1, 0x3
	ands r1, r0
	ldrb r3, [r2, 0x1]
	movs r0, 0x4
	negs r0, r0
	ands r0, r3
	orrs r0, r1
	strb r0, [r2, 0x1]
@080013F4:
	cmp r6, 0xFF
	beq @0800140C
	lsls r1, r7, 2
	add r1, r8
	movs r0, 0x1F
	ands r6, r0
	lsls r3, r6, 2
	ldrb r2, [r1, 0x1]
	subs r0, 0x9C
	ands r0, r2
	orrs r0, r3
	strb r0, [r1, 0x1]
@0800140C:
	mov r1, r9
	cmp r1, 0xFF
	beq @08001428
	lsls r1, r7, 2
	add r1, r8
	movs r0, 0x3
	mov r2, r9
	ands r2, r0
	lsls r3, r2, 2
	ldrb r2, [r1]
	subs r0, 0x10
	ands r0, r2
	orrs r0, r3
	strb r0, [r1]
@08001428:
	ldr r6, [sp, 0x4]
	cmp r6, 0xFF
	beq @0800143E
	lsls r1, r7, 2
	add r1, r8
	lsls r3, r6, 7
	ldrb r2, [r1, 0x1]
	movs r0, 0x7F
	ands r0, r2
	orrs r0, r3
	strb r0, [r1, 0x1]
@0800143E:
	cmp r5, 0xFF
	beq @08001456
	lsls r1, r7, 2
	add r1, r8
	movs r0, 0x3
	ands r5, r0
	lsls r3, r5, 4
	ldrb r2, [r1]
	subs r0, 0x34
	ands r0, r2
	orrs r0, r3
	strb r0, [r1]
@08001456:
	cmp r4, 0xFF
	beq @0800146E
	lsls r1, r7, 2
	add r1, r8
	movs r0, 0x1
	ands r4, r0
	lsls r3, r4, 6
	ldrb r2, [r1]
	subs r0, 0x42
	ands r0, r2
	orrs r0, r3
	strb r0, [r1]
@0800146E:
	ldr r0, [sp, 0xC]
	cmp r0, 0xFF
	beq @08001484
	lsls r1, r7, 2
	add r1, r8
	lsls r3, r0, 7
	ldrb r2, [r1]
	movs r0, 0x7F
	ands r0, r2
	orrs r0, r3
	strb r0, [r1]
@08001484:
	ldr r1, [sp]
	lsls r0, r1, 2
	add r0, r8
	mov r2, r12
	strb r2, [r0, 0x2]
	strb r2, [r0, 0x3]
	ldrb r1, [r0]
	movs r2, 0x1
	orrs r1, r2
	strb r1, [r0]
@08001498:
	add sp, 0x10
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_bg_config_set_fields

	thumb_func_start gpu_bg_config_get_field
; int gpu_bg_config_get_field(u8 bg_id, u8 field_id)
gpu_bg_config_get_field: ; 80014AC
	push {r4,r5,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r1, 24
	lsrs r5, r1, 24
	adds r0, r4, 0
	bl is_invalid_bg_id
	lsls r0, 24
	cmp r0, 0
	bne @08001558
	ldr r1, =0x030008e0
	lsls r2, r4, 2
	adds r0, r2, r1
	ldrb r0, [r0]
	lsls r0, 31
	adds r3, r1, 0
	cmp r0, 0
	beq @08001558
	subs r0, r5, 0x1
	cmp r0, 0x7
	bhi @08001558
	lsls r0, 2
	ldr r1, =@080014EC
	adds r0, r1
	ldr r0, [r0]
	mov pc, r0
	.align 2, 0
	.pool
	.align 2, 0
@080014EC:
	.4byte @0800150C
	.4byte @08001516
	.4byte @08001520
	.4byte @0800152A
	.4byte @08001534
	.4byte @0800153C
	.4byte @08001546
	.4byte @08001550
@0800150C:
	adds r0, r2, r3
	ldrb r0, [r0]
	lsls r0, 31
	lsrs r0, 31
	b @0800155A
@08001516:
	adds r0, r2, r3
	ldrb r0, [r0, 0x1]
	lsls r0, 30
	lsrs r0, 30
	b @0800155A
@08001520:
	adds r0, r2, r3
	ldrb r0, [r0, 0x1]
	lsls r0, 25
	lsrs r0, 27
	b @0800155A
@0800152A:
	adds r0, r2, r3
	ldrb r0, [r0]
	lsls r0, 28
	lsrs r0, 30
	b @0800155A
@08001534:
	adds r0, r2, r3
	ldrb r0, [r0, 0x1]
	lsrs r0, 7
	b @0800155A
@0800153C:
	adds r0, r2, r3
	ldrb r0, [r0]
	lsls r0, 26
	lsrs r0, 30
	b @0800155A
@08001546:
	adds r0, r2, r3
	ldrb r0, [r0]
	lsls r0, 25
	lsrs r0, 31
	b @0800155A
@08001550:
	adds r0, r2, r3
	ldrb r0, [r0]
	lsrs r0, 7
	b @0800155A
@08001558:
	movs r0, 0xFF
@0800155A:
	pop {r4,r5}
	pop {r1}
	bx r1
	thumb_func_end gpu_bg_config_get_field

	thumb_func_start gpu_copy_to_vram_by_bg_id
; s8 gpu_copy_to_vram_by_bg_id(u8 bg_id, int src, u16 byte_count, u16 dest_offset, gpu_copy_to_vram_type type)
gpu_copy_to_vram_by_bg_id: ; 8001560
	push {r4-r7,lr}
	mov r7, r8
	push {r7}
	mov r8, r1
	ldr r1, [sp, 0x18]
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r2, 16
	lsrs r7, r2, 16
	lsls r3, 16
	lsrs r6, r3, 16
	lsls r1, 24
	lsrs r5, r1, 24
	adds r0, r4, 0
	bl is_invalid_bg_id
	lsls r0, 24
	cmp r0, 0
	bne @080015D8
	ldr r1, =0x030008e0
	lsls r0, r4, 2
	adds r1, r0, r1
	ldrb r0, [r1]
	lsls r0, 31
	cmp r0, 0
	beq @080015D8
	cmp r5, 0x1
	beq @080015A4
	cmp r5, 0x2
	beq @080015AC
	movs r2, 0xFF
	b @080015DC
	.align 2, 0
	.pool
@080015A4:
	ldrb r0, [r1, 0x1]
	lsls r0, 30
	lsrs r0, 16
	b @080015B4
@080015AC:
	ldrb r0, [r1, 0x1]
	lsls r0, 25
	lsrs r0, 27
	lsls r0, 11
@080015B4:
	adds r0, r6, r0
	lsls r0, 16
	lsrs r0, 16
	movs r1, 0xC0
	lsls r1, 19
	adds r1, r0, r1
	mov r0, r8
	adds r2, r7, 0
	movs r3, 0
	bl RequestDma3Copy
	lsls r0, 24
	lsrs r2, r0, 24
	asrs r0, 24
	movs r1, 0x1
	negs r1, r1
	cmp r0, r1
	bne @080015DC
@080015D8:
	movs r0, 0xFF
	b @080015DE
@080015DC:
	adds r0, r2, 0
@080015DE:
	pop {r3}
	mov r8, r3
	pop {r4-r7}
	pop {r1}
	bx r1
	thumb_func_end gpu_copy_to_vram_by_bg_id

	thumb_func_start gpu_bg_show
; void gpu_bg_show(u8 bg_id)
gpu_bg_show: ; 80015E8
	push {r4,r5,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	adds r0, r4, 0
	bl is_invalid_bg_id
	lsls r0, 24
	cmp r0, 0
	bne @08001656
	ldr r5, =0x030008e0
	lsls r0, r4, 2
	adds r2, r0, r5
	ldrb r3, [r2]
	lsls r0, r3, 31
	cmp r0, 0
	beq @08001656
	lsls r1, r3, 26
	lsrs r1, 30
	ldrb r2, [r2, 0x1]
	lsls r0, r2, 30
	lsrs r0, 28
	orrs r1, r0
	movs r0, 0x40
	ands r0, r3
	orrs r1, r0
	lsrs r0, r2, 7
	lsls r0, 7
	orrs r1, r0
	lsls r2, 25
	lsrs r2, 27
	lsls r2, 8
	orrs r1, r2
	lsrs r0, r3, 7
	lsls r0, 13
	orrs r1, r0
	lsls r0, r3, 28
	lsrs r0, 30
	lsls r0, 14
	orrs r1, r0
	lsls r0, r4, 25
	movs r2, 0x80
	lsls r2, 20
	adds r0, r2
	lsrs r0, 24
	bl lcd_io_set
	adds r1, r4, 0
	adds r1, 0x8
	movs r0, 0x1
	lsls r0, r1
	ldrh r1, [r5, 0x10]
	orrs r0, r1
	ldr r1, =0x00000f07
	ands r0, r1
	strh r0, [r5, 0x10]
@08001656:
	pop {r4,r5}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_bg_show

	thumb_func_start gpu_bg_hide
; void gpu_bg_hide(u8 bg_id)
gpu_bg_hide: ; 8001664
	push {r4,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	adds r0, r4, 0
	bl is_invalid_bg_id
	lsls r0, 24
	cmp r0, 0
	bne @0800168A
	ldr r2, =0x030008e0
	adds r0, r4, 0
	adds r0, 0x8
	movs r1, 0x1
	lsls r1, r0
	ldrh r0, [r2, 0x10]
	bics r0, r1
	ldr r1, =0x00000f07
	ands r0, r1
	strh r0, [r2, 0x10]
@0800168A:
	pop {r4}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_bg_hide

	thumb_func_start gpu_sync_bg_visibility_and_mode
; void gpu_sync_bg_visibility_and_mode()
gpu_sync_bg_visibility_and_mode: ; 8001698
	push {lr}
	movs r0, 0
	bl lcd_io_get
	ldr r1, =0x0000f0f8
	ands r1, r0
	ldr r0, =0x030008e0
	ldrh r0, [r0, 0x10]
	orrs r1, r0
	movs r0, 0
	bl lcd_io_set
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_sync_bg_visibility_and_mode

	thumb_func_start gpu_sync_text_mode_and_hide_bgs
; void gpu_sync_text_mode_and_hide_bgs()
gpu_sync_text_mode_and_hide_bgs: ; 80016BC
	push {lr}
	movs r0, 0
	bl lcd_io_get
	ldr r1, =0x0000f0f8
	ands r1, r0
	movs r0, 0
	bl lcd_io_set
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_sync_text_mode_and_hide_bgs

	thumb_func_start gpu_bg_affine_set
; void gpu_bg_affine_set(u8 bg_id, int bg_center_x, int bg_center_y, u16 display_center_x, s16 display_center_y, s16 scale_x, s16 scale_y, s16 rotation_angle)
gpu_bg_affine_set: ; 80016D8
	push {r4-r7,lr}
	mov r7, r8
	push {r7}
	sub sp, 0x24
	mov r12, r1
	mov r8, r2
	ldr r1, [sp, 0x3C]
	ldr r2, [sp, 0x40]
	ldr r4, [sp, 0x44]
	ldr r5, [sp, 0x48]
	lsls r0, 24
	lsrs r6, r0, 24
	lsls r3, 16
	lsrs r3, 16
	lsls r1, 16
	lsrs r7, r1, 16
	lsls r2, 16
	lsrs r2, 16
	lsls r4, 16
	lsrs r4, 16
	lsls r5, 16
	lsrs r5, 16
	ldr r0, =0x030008e0
	ldrh r0, [r0, 0x10]
	movs r1, 0x7
	ands r1, r0
	cmp r1, 0x1
	beq @08001720
	cmp r1, 0x1
	ble @08001796
	cmp r1, 0x2
	beq @08001726
	b @08001796
	.align 2, 0
	.pool
@08001720:
	cmp r6, 0x2
	bne @08001796
	b @08001730
@08001726:
	subs r0, r6, 0x2
	lsls r0, 24
	lsrs r0, 24
	cmp r0, 0x1
	bhi @08001796
@08001730:
	mov r0, r12
	str r0, [sp]
	mov r0, r8
	str r0, [sp, 0x4]
	mov r0, sp
	strh r3, [r0, 0x8]
	strh r7, [r0, 0xA]
	strh r2, [r0, 0xC]
	strh r4, [r0, 0xE]
	strh r5, [r0, 0x10]
	add r4, sp, 0x14
	adds r1, r4, 0
	movs r2, 0x1
	bl BgAffineSet
	ldrh r1, [r4]
	movs r0, 0x20
	bl lcd_io_set
	ldrh r1, [r4, 0x2]
	movs r0, 0x22
	bl lcd_io_set
	ldrh r1, [r4, 0x4]
	movs r0, 0x24
	bl lcd_io_set
	ldrh r1, [r4, 0x6]
	movs r0, 0x26
	bl lcd_io_set
	ldrh r1, [r4]
	movs r0, 0x20
	bl lcd_io_set
	ldrh r1, [r4, 0x8]
	movs r0, 0x28
	bl lcd_io_set
	ldrh r1, [r4, 0xA]
	movs r0, 0x2A
	bl lcd_io_set
	ldrh r1, [r4, 0xC]
	movs r0, 0x2C
	bl lcd_io_set
	ldrh r1, [r4, 0xE]
	movs r0, 0x2E
	bl lcd_io_set
@08001796:
	add sp, 0x24
	pop {r3}
	mov r8, r3
	pop {r4-r7}
	pop {r0}
	bx r0
	thumb_func_end gpu_bg_affine_set

	thumb_func_start is_invalid_bg_id
; _BOOL1 is_invalid_bg_id(u8 bg_id)
is_invalid_bg_id: ; 80017A4
	push {lr}
	lsls r0, 24
	lsrs r0, 24
	cmp r0, 0x3
	bhi @080017B2
	movs r0, 0
	b @080017B4
@080017B2:
	movs r0, 0x1
@080017B4:
	pop {r1}
	bx r1
	thumb_func_end is_invalid_bg_id

	thumb_func_start do_nothing
; int do_nothing()
do_nothing: ; 80017B8
	movs r0, 0
	bx lr
	thumb_func_end do_nothing

	thumb_func_start gpu_reset_bgs_and_dma3_busy_flags
; void gpu_reset_bgs_and_dma3_busy_flags(int a1)
gpu_reset_bgs_and_dma3_busy_flags: ; 80017BC
	push {r4,lr}
	adds r4, r0, 0
	bl gpu_init_bgs
	ldr r1, =0x03000938
	movs r2, 0
	adds r0, r1, 0
	adds r0, 0xC
@080017CC:
	str r2, [r0]
	subs r0, 0x4
	cmp r0, r1
	bge @080017CC
	ldr r0, =0x03002f54
	str r4, [r0]
	pop {r4}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_reset_bgs_and_dma3_busy_flags

	thumb_func_start bg_vram_setup
; void bg_vram_setup(u8 bg_mode, struct bg_config3 *bg_config3s, u8 entry_count)
bg_vram_setup: ; 80017E8
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x10
	adds r5, r1, 0
	lsls r0, 24
	lsrs r0, 24
	lsls r2, 24
	lsrs r4, r2, 24
	bl gpu_set_bg_mode
	bl gpu_reset_bg_configs
	cmp r4, 0
	beq @08001894
	movs r7, 0
	ldr r0, =0x030008f8
	mov r9, r0
	movs r2, 0xC
	add r2, r9
	mov r10, r2
	adds r6, r5, 0
	mov r8, r4
@0800181A:
	ldr r4, [r6]
	lsls r0, r4, 30
	lsrs r5, r0, 30
	cmp r5, 0x3
	bhi @08001886
	lsls r1, r4, 28
	lsrs r1, 30
	lsls r2, r4, 23
	lsrs r2, 27
	lsls r3, r4, 21
	lsrs r3, 30
	lsls r0, r4, 20
	lsrs r0, 31
	str r0, [sp]
	lsls r0, r4, 18
	lsrs r0, 30
	str r0, [sp, 0x4]
	str r7, [sp, 0x8]
	str r7, [sp, 0xC]
	adds r0, r5, 0
	bl gpu_bg_config_set_fields
	lsls r4, r5, 4
	mov r5, r9
	adds r3, r4, r5
	ldr r2, [r6]
	lsls r2, 8
	lsrs r2, 22
	ldrh r0, [r3]
	ldr r5, =0xfffffc00
	adds r1, r5, 0
	ands r0, r1
	orrs r0, r2
	strh r0, [r3]
	ldrb r0, [r3, 0x1]
	movs r2, 0x3D
	negs r2, r2
	adds r1, r2, 0
	ands r0, r1
	strb r0, [r3, 0x1]
	ldr r0, [r3]
	ldr r1, =0x00003fff
	ands r0, r1
	str r0, [r3]
	mov r0, r9
	adds r0, 0x4
	adds r0, r4, r0
	str r7, [r0]
	mov r0, r9
	adds r0, 0x8
	adds r0, r4, r0
	str r7, [r0]
	add r4, r10
	str r7, [r4]
@08001886:
	adds r6, 0x4
	movs r5, 0x1
	negs r5, r5
	add r8, r5
	mov r0, r8
	cmp r0, 0
	bne @0800181A
@08001894:
	add sp, 0x10
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end bg_vram_setup

	thumb_func_start bg_init_bg_config_2_from_bg_config_3
; void bg_init_bg_config_2_from_bg_config_3(struct bg_config_3 *bg)
bg_init_bg_config_2_from_bg_config_3: ; 80018B0
	push {r4-r7,lr}
	sub sp, 0x10
	adds r7, r0, 0
	ldr r4, [r7]
	lsls r0, r4, 30
	lsrs r5, r0, 30
	cmp r5, 0x3
	bhi @08001920
	lsls r1, r4, 28
	lsrs r1, 30
	lsls r2, r4, 23
	lsrs r2, 27
	lsls r3, r4, 21
	lsrs r3, 30
	lsls r0, r4, 20
	lsrs r0, 31
	str r0, [sp]
	lsls r0, r4, 18
	lsrs r0, 30
	str r0, [sp, 0x4]
	movs r6, 0
	str r6, [sp, 0x8]
	str r6, [sp, 0xC]
	adds r0, r5, 0
	bl gpu_bg_config_set_fields
	ldr r4, =0x030008f8
	lsls r5, 4
	adds r3, r5, r4
	ldr r1, [r7]
	lsls r1, 8
	lsrs r1, 22
	ldrh r2, [r3]
	ldr r0, =0xfffffc00
	ands r0, r2
	orrs r0, r1
	strh r0, [r3]
	ldrb r1, [r3, 0x1]
	movs r0, 0x3D
	negs r0, r0
	ands r0, r1
	strb r0, [r3, 0x1]
	ldr r0, [r3]
	ldr r1, =0x00003fff
	ands r0, r1
	str r0, [r3]
	adds r0, r4, 0x4
	adds r0, r5, r0
	str r6, [r0]
	adds r0, r4, 0
	adds r0, 0x8
	adds r0, r5, r0
	str r6, [r0]
	adds r4, 0xC
	adds r5, r4
	str r6, [r5]
@08001920:
	add sp, 0x10
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end bg_init_bg_config_2_from_bg_config_3

	thumb_func_start call_gpu_set_bg_mode
; void call_gpu_set_bg_mode(u8 bg_id)
call_gpu_set_bg_mode: ; 8001934
	push {lr}
	lsls r0, 24
	lsrs r0, 24
	bl gpu_set_bg_mode
	pop {r0}
	bx r0
	thumb_func_end call_gpu_set_bg_mode

	thumb_func_start gpu_copy_bg_tile_pattern_data_to_vram
; s16 gpu_copy_bg_tile_pattern_data_to_vram(u8 bg_id, int src, u16 size, u16 offset)
gpu_copy_bg_tile_pattern_data_to_vram: ; 8001944
	push {r4-r7,lr}
	mov r7, r8
	push {r7}
	sub sp, 0x4
	adds r7, r1, 0
	lsls r0, 24
	lsrs r5, r0, 24
	lsls r2, 16
	lsrs r2, 16
	mov r8, r2
	lsls r3, 16
	lsrs r4, r3, 16
	adds r0, r5, 0
	movs r1, 0x5
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	bne @08001980
	ldr r1, =0x030008f8
	lsls r0, r5, 4
	adds r0, r1
	ldrh r0, [r0]
	lsls r0, 22
	lsrs r0, 22
	adds r0, r4
	lsls r0, 21
	b @08001990
	.align 2, 0
	.pool
@08001980:
	ldr r1, =0x030008f8
	lsls r0, r5, 4
	adds r0, r1
	ldrh r0, [r0]
	lsls r0, 22
	lsrs r0, 22
	adds r0, r4
	lsls r0, 22
@08001990:
	lsrs r4, r0, 16
	movs r6, 0x1
	str r6, [sp]
	adds r0, r5, 0
	adds r1, r7, 0
	mov r2, r8
	adds r3, r4, 0
	bl gpu_copy_to_vram_by_bg_id
	lsls r2, r0, 24
	lsrs r1, r2, 24
	adds r7, r1, 0
	cmp r1, 0xFF
	bne @080019B8
	ldr r0, =0x0000ffff
	b @080019E6
	.align 2, 0
	.pool
@080019B8:
	ldr r0, =0x03000938
	lsrs r2, 29
	lsls r2, 2
	adds r2, r0
	movs r0, 0x1F
	ands r0, r1
	adds r1, r6, 0
	lsls r1, r0
	ldr r0, [r2]
	orrs r0, r1
	str r0, [r2]
	ldr r0, =0x03002f54
	ldr r0, [r0]
	cmp r0, 0x1
	bne @080019E4
	lsrs r1, r4, 5
	mov r0, r8
	lsrs r2, r0, 5
	adds r0, r5, 0
	movs r3, 0x1
	bl do_nothing
@080019E4:
	adds r0, r7, 0
@080019E6:
	add sp, 0x4
	pop {r3}
	mov r8, r3
	pop {r4-r7}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end gpu_copy_bg_tile_pattern_data_to_vram

	thumb_func_start gpu_copy_bg_tile_map_to_vram
gpu_copy_bg_tile_map_to_vram: ; 80019FC
	push {r4,lr}
	sub sp, 0x4
	lsls r0, 24
	lsrs r0, 24
	lsls r2, 16
	lsrs r2, 16
	lsls r3, 17
	lsrs r3, 16
	movs r4, 0x2
	str r4, [sp]
	bl gpu_copy_to_vram_by_bg_id
	lsls r2, r0, 24
	lsrs r3, r2, 24
	cmp r3, 0xFF
	beq @08001A3C
	ldr r0, =0x03000938
	lsrs r2, 29
	lsls r2, 2
	adds r2, r0
	movs r0, 0x1F
	ands r0, r3
	movs r1, 0x1
	lsls r1, r0
	ldr r0, [r2]
	orrs r0, r1
	str r0, [r2]
	adds r0, r3, 0
	b @08001A3E
	.align 2, 0
	.pool
@08001A3C:
	ldr r0, =0x0000ffff
@08001A3E:
	add sp, 0x4
	pop {r4}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end gpu_copy_bg_tile_map_to_vram

	thumb_func_start unused_copy_palette
unused_copy_palette: ; 8001A4C
	push {r4-r7,lr}
	adds r7, r1, 0
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r2, 16
	lsrs r6, r2, 16
	lsls r3, 16
	lsrs r5, r3, 16
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @08001A98
	ldr r1, =0x030008f8
	lsls r0, r4, 4
	adds r0, r1
	ldrb r1, [r0, 0x1]
	lsls r1, 26
	lsrs r1, 28
	lsls r1, 5
	lsls r0, r5, 1
	adds r1, r0
	lsls r1, 16
	lsrs r1, 16
	movs r0, 0xA0
	lsls r0, 19
	adds r1, r0
	adds r0, r7, 0
	adds r2, r6, 0
	movs r3, 0
	bl RequestDma3Copy
	lsls r3, r0, 24
	asrs r1, r3, 24
	movs r0, 0x1
	negs r0, r0
	cmp r1, r0
	bne @08001AA4
@08001A98:
	ldr r0, =0x0000ffff
	b @08001AC8
	.align 2, 0
	.pool
@08001AA4:
	ldr r4, =0x03000938
	adds r0, r1, 0
	cmp r1, 0
	bge @08001AAE
	adds r0, 0x1F
@08001AAE:
	asrs r0, 5
	lsls r2, r0, 2
	adds r2, r4
	lsls r0, 5
	subs r0, r1, r0
	lsls r0, 24
	asrs r0, 24
	movs r1, 0x1
	lsls r1, r0
	ldr r0, [r2]
	orrs r0, r1
	str r0, [r2]
	lsrs r0, r3, 24
@08001AC8:
	pop {r4-r7}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end unused_copy_palette

	thumb_func_start is_dma3_queue_busy_with_gpu_copy
; int is_dma3_queue_busy_with_gpu_copy()
is_dma3_queue_busy_with_gpu_copy: ; 8001AD4
	push {r4-r7,lr}
	movs r5, 0
	movs r7, 0x1
	negs r7, r7
@08001ADC:
	adds r0, r5, 0
	cmp r5, 0
	bge @08001AE4
	adds r0, 0x1F
@08001AE4:
	asrs r0, 5
	lsls r2, r0, 24
	lsls r0, 5
	subs r0, r5, r0
	lsls r0, 24
	lsrs r0, 24
	ldr r1, =0x03000938
	lsrs r2, 22
	adds r4, r2, r1
	movs r6, 0x1
	lsls r6, r0
	ldr r0, [r4]
	ands r0, r6
	cmp r0, 0
	beq @08001B22
	lsls r0, r5, 16
	asrs r0, 16
	bl CheckForSpaceForDma3Request
	lsls r0, 24
	asrs r0, 24
	cmp r0, r7
	bne @08001B1C
	movs r0, 0x1
	b @08001B2A
	.align 2, 0
	.pool
@08001B1C:
	ldr r0, [r4]
	bics r0, r6
	str r0, [r4]
@08001B22:
	adds r5, 0x1
	cmp r5, 0x7F
	ble @08001ADC
	movs r0, 0
@08001B2A:
	pop {r4-r7}
	pop {r1}
	bx r1
	thumb_func_end is_dma3_queue_busy_with_gpu_copy

	thumb_func_start gpu_sync_bg_show
; void gpu_sync_bg_show(u8 bg_id)
gpu_sync_bg_show: ; 8001B30
	push {lr}
	lsls r0, 24
	lsrs r0, 24
	bl gpu_bg_show
	bl gpu_sync_bg_visibility_and_mode
	pop {r0}
	bx r0
	thumb_func_end gpu_sync_bg_show

	thumb_func_start gpu_sync_bg_hide
; void gpu_sync_bg_hide(u8 bg_id)
gpu_sync_bg_hide: ; 8001B44
	push {lr}
	lsls r0, 24
	lsrs r0, 24
	bl gpu_bg_hide
	bl gpu_sync_bg_visibility_and_mode
	pop {r0}
	bx r0
	thumb_func_end gpu_sync_bg_hide

	thumb_func_start gpu_bg_config_set_field
; int gpu_bg_config_set_field(u8 bg_id, bg_config_get_field field_id, u8 value)
gpu_bg_config_set_field: ; 8001B58
	push {r4,lr}
	sub sp, 0x10
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r1, 24
	lsrs r1, 24
	lsls r2, 24
	lsrs r3, r2, 24
	subs r0, r1, 0x1
	cmp r0, 0x6
	bhi @08001C12
	lsls r0, 2
	ldr r1, =@08001B7C
	adds r0, r1
	ldr r0, [r0]
	mov pc, r0
	.align 2, 0
	.pool
	.align 2, 0
@08001B7C:
	.4byte @08001B98
	.4byte @08001BA8
	.4byte @08001BBA
	.4byte @08001BD0
	.4byte @08001BE4
	.4byte @08001BFC
	.4byte @08001BDA
@08001B98:
	movs r0, 0xFF
	str r0, [sp]
	str r0, [sp, 0x4]
	str r0, [sp, 0x8]
	str r0, [sp, 0xC]
	adds r0, r4, 0
	adds r1, r3, 0
	b @08001BF2
@08001BA8:
	movs r0, 0xFF
	str r0, [sp]
	str r0, [sp, 0x4]
	str r0, [sp, 0x8]
	str r0, [sp, 0xC]
	adds r0, r4, 0
	movs r1, 0xFF
	adds r2, r3, 0
	b @08001BF4
@08001BBA:
	movs r0, 0xFF
	str r0, [sp]
	str r0, [sp, 0x4]
	str r0, [sp, 0x8]
	str r0, [sp, 0xC]
	adds r0, r4, 0
	movs r1, 0xFF
	movs r2, 0xFF
	bl gpu_bg_config_set_fields
	b @08001C12
@08001BD0:
	str r3, [sp]
	movs r0, 0xFF
	str r0, [sp, 0x4]
	str r0, [sp, 0x8]
	b @08001BEC
@08001BDA:
	movs r0, 0xFF
	str r0, [sp]
	str r3, [sp, 0x4]
	str r0, [sp, 0x8]
	b @08001BEC
@08001BE4:
	movs r0, 0xFF
	str r0, [sp]
	str r0, [sp, 0x4]
	str r3, [sp, 0x8]
@08001BEC:
	str r0, [sp, 0xC]
	adds r0, r4, 0
	movs r1, 0xFF
@08001BF2:
	movs r2, 0xFF
@08001BF4:
	movs r3, 0xFF
	bl gpu_bg_config_set_fields
	b @08001C12
@08001BFC:
	movs r0, 0xFF
	str r0, [sp]
	str r0, [sp, 0x4]
	str r0, [sp, 0x8]
	str r3, [sp, 0xC]
	adds r0, r4, 0
	movs r1, 0xFF
	movs r2, 0xFF
	movs r3, 0xFF
	bl gpu_bg_config_set_fields
@08001C12:
	add sp, 0x10
	pop {r4}
	pop {r0}
	bx r0
	thumb_func_end gpu_bg_config_set_field

	thumb_func_start bg_get_field
bg_get_field: ; 8001C1C
	push {r4,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r1, 24
	lsrs r1, 24
	subs r0, r1, 0x1
	cmp r0, 0x9
	bhi @08001CF8
	lsls r0, 2
	ldr r1, =@08001C3C
	adds r0, r1
	ldr r0, [r0]
	mov pc, r0
	.align 2, 0
	.pool
	.align 2, 0
@08001C3C:
	.4byte @08001C64
	.4byte @08001C6E
	.4byte @08001C78
	.4byte @08001C82
	.4byte @08001C96
	.4byte @08001CA0
	.4byte @08001C8C
	.4byte @08001CAA
	.4byte @08001CD8
	.4byte @08001CE4
@08001C64:
	adds r0, r4, 0
	movs r1, 0x2
	bl gpu_bg_config_get_field
	b @08001CDE
@08001C6E:
	adds r0, r4, 0
	movs r1, 0x3
	bl gpu_bg_config_get_field
	b @08001CDE
@08001C78:
	adds r0, r4, 0
	movs r1, 0x4
	bl gpu_bg_config_get_field
	b @08001CDE
@08001C82:
	adds r0, r4, 0
	movs r1, 0x5
	bl gpu_bg_config_get_field
	b @08001CDE
@08001C8C:
	adds r0, r4, 0
	movs r1, 0x6
	bl gpu_bg_config_get_field
	b @08001CDE
@08001C96:
	adds r0, r4, 0
	movs r1, 0x7
	bl gpu_bg_config_get_field
	b @08001CDE
@08001CA0:
	adds r0, r4, 0
	movs r1, 0x8
	bl gpu_bg_config_get_field
	b @08001CDE
@08001CAA:
	adds r0, r4, 0
	bl bg_get_type_by_bg_id
	cmp r0, 0
	beq @08001CBC
	cmp r0, 0x1
	beq @08001CCA
	movs r0, 0
	b @08001CFA
@08001CBC:
	adds r0, r4, 0
	movs r1, 0
	bl bg_get_screen_size_in_regular_mode
	lsls r0, 27
	lsrs r0, 16
	b @08001CFA
@08001CCA:
	adds r0, r4, 0
	movs r1, 0
	bl bg_get_screen_size_in_affine_mode
	lsls r0, 24
	lsrs r0, 16
	b @08001CFA
@08001CD8:
	adds r0, r4, 0
	bl bg_get_type_by_bg_id
@08001CDE:
	lsls r0, 16
	lsrs r0, 16
	b @08001CFA
@08001CE4:
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r1, r0
	ldrh r0, [r1]
	lsls r0, 22
	lsrs r0, 22
	b @08001CFA
	.align 2, 0
	.pool
@08001CF8:
	ldr r0, =0x0000ffff
@08001CFA:
	pop {r4}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end bg_get_field

	thumb_func_start bg_change_x_offset
; int bg_change_x_offset(u8 bg_id, int offset, u8 operation)
bg_change_x_offset: ; 8001D04
	push {r4-r6,lr}
	adds r6, r1, 0
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r2, 24
	lsrs r5, r2, 24
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @08001D28
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	bne @08001D2E
@08001D28:
	movs r0, 0x1
	negs r0, r0
	b @08001E34
@08001D2E:
	cmp r5, 0x1
	beq @08001D4C
	cmp r5, 0x1
	ble @08001D3A
	cmp r5, 0x2
	beq @08001D60
@08001D3A:
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0x8
	adds r0, r1, r0
	str r6, [r0]
	adds r5, r1, 0
	b @08001D70
	.align 2, 0
	.pool
@08001D4C:
	ldr r0, =0x030008f8
	lsls r2, r4, 4
	adds r0, 0x8
	adds r0, r2, r0
	ldr r1, [r0]
	adds r1, r6
	b @08001D6C
	.align 2, 0
	.pool
@08001D60:
	ldr r0, =0x030008f8
	lsls r2, r4, 4
	adds r0, 0x8
	adds r0, r2, r0
	ldr r1, [r0]
	subs r1, r6
@08001D6C:
	str r1, [r0]
	adds r5, r2, 0
@08001D70:
	bl gpu_get_bg_mode
	lsls r0, 24
	lsrs r0, 24
	cmp r4, 0x1
	beq @08001DAC
	cmp r4, 0x1
	bgt @08001D8C
	cmp r4, 0
	beq @08001D96
	b @08001E2C
	.align 2, 0
	.pool
@08001D8C:
	cmp r4, 0x2
	beq @08001DC0
	cmp r4, 0x3
	beq @08001DF8
	b @08001E2C
@08001D96:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x8]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x10
	bl lcd_io_set
	b @08001E2C
	.align 2, 0
	.pool
@08001DAC:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x18]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x14
	bl lcd_io_set
	b @08001E2C
	.align 2, 0
	.pool
@08001DC0:
	cmp r0, 0
	bne @08001DD8
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x28]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x18
	bl lcd_io_set
	b @08001E2C
	.align 2, 0
	.pool
@08001DD8:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x28]
	lsrs r1, r0, 16
	lsls r0, 16
	lsrs r4, r0, 16
	movs r0, 0x2A
	bl lcd_io_set
	movs r0, 0x28
	adds r1, r4, 0
	bl lcd_io_set
	b @08001E2C
	.align 2, 0
	.pool
@08001DF8:
	cmp r0, 0
	bne @08001E10
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x38]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x1C
	bl lcd_io_set
	b @08001E2C
	.align 2, 0
	.pool
@08001E10:
	cmp r0, 0x2
	bne @08001E2C
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x38]
	lsrs r1, r0, 16
	lsls r0, 16
	lsrs r4, r0, 16
	movs r0, 0x3A
	bl lcd_io_set
	movs r0, 0x38
	adds r1, r4, 0
	bl lcd_io_set
@08001E2C:
	ldr r0, =0x030008f8
	adds r0, 0x8
	adds r0, r5, r0
	ldr r0, [r0]
@08001E34:
	pop {r4-r6}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end bg_change_x_offset

	thumb_func_start bg_get_x_offset
; int bg_get_x_offset(u8 bg_id)
bg_get_x_offset: ; 8001E40
	push {r4,lr}
	lsls r0, 24
	lsrs r0, 24
	adds r4, r0, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @08001E70
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	beq @08001E70
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0x8
	adds r1, r0
	ldr r0, [r1]
	b @08001E74
	.align 2, 0
	.pool
@08001E70:
	movs r0, 0x1
	negs r0, r0
@08001E74:
	pop {r4}
	pop {r1}
	bx r1
	thumb_func_end bg_get_x_offset

	thumb_func_start bg_change_y_offset
; int bg_change_y_offset(u8 bg_id, int offset, u8 operation)
bg_change_y_offset: ; 8001E7C
	push {r4-r6,lr}
	adds r6, r1, 0
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r2, 24
	lsrs r5, r2, 24
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @08001EA0
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	bne @08001EA6
@08001EA0:
	movs r0, 0x1
	negs r0, r0
	b @08001FAC
@08001EA6:
	cmp r5, 0x1
	beq @08001EC4
	cmp r5, 0x1
	ble @08001EB2
	cmp r5, 0x2
	beq @08001ED8
@08001EB2:
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0xC
	adds r0, r1, r0
	str r6, [r0]
	adds r5, r1, 0
	b @08001EE8
	.align 2, 0
	.pool
@08001EC4:
	ldr r0, =0x030008f8
	lsls r2, r4, 4
	adds r0, 0xC
	adds r0, r2, r0
	ldr r1, [r0]
	adds r1, r6
	b @08001EE4
	.align 2, 0
	.pool
@08001ED8:
	ldr r0, =0x030008f8
	lsls r2, r4, 4
	adds r0, 0xC
	adds r0, r2, r0
	ldr r1, [r0]
	subs r1, r6
@08001EE4:
	str r1, [r0]
	adds r5, r2, 0
@08001EE8:
	bl gpu_get_bg_mode
	lsls r0, 24
	lsrs r0, 24
	cmp r4, 0x1
	beq @08001F24
	cmp r4, 0x1
	bgt @08001F04
	cmp r4, 0
	beq @08001F0E
	b @08001FA4
	.align 2, 0
	.pool
@08001F04:
	cmp r4, 0x2
	beq @08001F38
	cmp r4, 0x3
	beq @08001F70
	b @08001FA4
@08001F0E:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0xC]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x12
	bl lcd_io_set
	b @08001FA4
	.align 2, 0
	.pool
@08001F24:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x1C]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x16
	bl lcd_io_set
	b @08001FA4
	.align 2, 0
	.pool
@08001F38:
	cmp r0, 0
	bne @08001F50
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x2C]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x1A
	bl lcd_io_set
	b @08001FA4
	.align 2, 0
	.pool
@08001F50:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x2C]
	lsrs r1, r0, 16
	lsls r0, 16
	lsrs r4, r0, 16
	movs r0, 0x2E
	bl lcd_io_set
	movs r0, 0x2C
	adds r1, r4, 0
	bl lcd_io_set
	b @08001FA4
	.align 2, 0
	.pool
@08001F70:
	cmp r0, 0
	bne @08001F88
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x3C]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x1E
	bl lcd_io_set
	b @08001FA4
	.align 2, 0
	.pool
@08001F88:
	cmp r0, 0x2
	bne @08001FA4
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x3C]
	lsrs r1, r0, 16
	lsls r0, 16
	lsrs r4, r0, 16
	movs r0, 0x3E
	bl lcd_io_set
	movs r0, 0x3C
	adds r1, r4, 0
	bl lcd_io_set
@08001FA4:
	ldr r0, =0x030008f8
	adds r0, 0xC
	adds r0, r5, r0
	ldr r0, [r0]
@08001FAC:
	pop {r4-r6}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end bg_change_y_offset

	thumb_func_start bg_change_y_offset_to_copy_queue
; int bg_change_y_offset_to_copy_queue(u8 bg_id, int a2, u8 a3)
bg_change_y_offset_to_copy_queue: ; 8001FB8
	push {r4-r6,lr}
	adds r6, r1, 0
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r2, 24
	lsrs r5, r2, 24
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @08001FDC
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	bne @08001FE2
@08001FDC:
	movs r0, 0x1
	negs r0, r0
	b @080020E8
@08001FE2:
	cmp r5, 0x1
	beq @08002000
	cmp r5, 0x1
	ble @08001FEE
	cmp r5, 0x2
	beq @08002014
@08001FEE:
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0xC
	adds r0, r1, r0
	str r6, [r0]
	adds r5, r1, 0
	b @08002024
	.align 2, 0
	.pool
@08002000:
	ldr r0, =0x030008f8
	lsls r2, r4, 4
	adds r0, 0xC
	adds r0, r2, r0
	ldr r1, [r0]
	adds r1, r6
	b @08002020
	.align 2, 0
	.pool
@08002014:
	ldr r0, =0x030008f8
	lsls r2, r4, 4
	adds r0, 0xC
	adds r0, r2, r0
	ldr r1, [r0]
	subs r1, r6
@08002020:
	str r1, [r0]
	adds r5, r2, 0
@08002024:
	bl gpu_get_bg_mode
	lsls r0, 24
	lsrs r0, 24
	cmp r4, 0x1
	beq @08002060
	cmp r4, 0x1
	bgt @08002040
	cmp r4, 0
	beq @0800204A
	b @080020E0
	.align 2, 0
	.pool
@08002040:
	cmp r4, 0x2
	beq @08002074
	cmp r4, 0x3
	beq @080020AC
	b @080020E0
@0800204A:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0xC]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x12
	bl lcd_io_set_forced_blank
	b @080020E0
	.align 2, 0
	.pool
@08002060:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x1C]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x16
	bl lcd_io_set_forced_blank
	b @080020E0
	.align 2, 0
	.pool
@08002074:
	cmp r0, 0
	bne @0800208C
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x2C]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x1A
	bl lcd_io_set_forced_blank
	b @080020E0
	.align 2, 0
	.pool
@0800208C:
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x2C]
	lsrs r1, r0, 16
	lsls r0, 16
	lsrs r4, r0, 16
	movs r0, 0x2E
	bl lcd_io_set_forced_blank
	movs r0, 0x2C
	adds r1, r4, 0
	bl lcd_io_set_forced_blank
	b @080020E0
	.align 2, 0
	.pool
@080020AC:
	cmp r0, 0
	bne @080020C4
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x3C]
	lsls r0, 8
	lsrs r1, r0, 16
	movs r0, 0x1E
	bl lcd_io_set_forced_blank
	b @080020E0
	.align 2, 0
	.pool
@080020C4:
	cmp r0, 0x2
	bne @080020E0
	ldr r0, =0x030008f8
	ldr r0, [r0, 0x3C]
	lsrs r1, r0, 16
	lsls r0, 16
	lsrs r4, r0, 16
	movs r0, 0x3E
	bl lcd_io_set_forced_blank
	movs r0, 0x3C
	adds r1, r4, 0
	bl lcd_io_set_forced_blank
@080020E0:
	ldr r0, =0x030008f8
	adds r0, 0xC
	adds r0, r5, r0
	ldr r0, [r0]
@080020E8:
	pop {r4-r6}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end bg_change_y_offset_to_copy_queue

	thumb_func_start bg_get_y_offset
; int bg_get_y_offset(u8 bg_id)
bg_get_y_offset: ; 80020F4
	push {r4,lr}
	lsls r0, 24
	lsrs r0, 24
	adds r4, r0, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @08002124
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	beq @08002124
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0xC
	adds r1, r0
	ldr r0, [r1]
	b @08002128
	.align 2, 0
	.pool
@08002124:
	movs r0, 0x1
	negs r0, r0
@08002128:
	pop {r4}
	pop {r1}
	bx r1
	thumb_func_end bg_get_y_offset

	thumb_func_start call_gpu_bg_affine_set
; void call_gpu_bg_affine_set(u8 a1, int a2, int a3, u16 a4, s16 a5, s16 a6, s16 a7, s16 a8)
call_gpu_bg_affine_set: ; 8002130
	push {r4-r7,lr}
	mov r7, r8
	push {r7}
	sub sp, 0x10
	ldr r4, [sp, 0x28]
	ldr r5, [sp, 0x2C]
	ldr r6, [sp, 0x30]
	ldr r7, [sp, 0x34]
	lsls r0, 24
	lsrs r0, 24
	lsls r7, 16
	lsrs r7, 16
	lsls r3, 16
	asrs r3, 16
	lsls r4, 16
	asrs r4, 16
	str r4, [sp]
	lsls r5, 16
	asrs r5, 16
	str r5, [sp, 0x4]
	lsls r6, 16
	asrs r6, 16
	str r6, [sp, 0x8]
	str r7, [sp, 0xC]
	bl gpu_bg_affine_set
	add sp, 0x10
	pop {r3}
	mov r8, r3
	pop {r4-r7}
	pop {r0}
	bx r0
	thumb_func_end call_gpu_bg_affine_set

	thumb_func_start mosaic_something
mosaic_something: ; 8002170
	push {r4-r6,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	lsls r1, 24
	lsrs r6, r1, 24
	movs r0, 0x4C
	bl lcd_io_get
	lsls r0, 16
	lsrs r5, r0, 16
	movs r1, 0xF
	movs r3, 0xF
	ands r3, r5
	lsrs r2, r0, 20
	ands r2, r1
	movs r0, 0xFF
	lsls r0, 8
	ands r5, r0
	cmp r6, 0x6
	bhi @080021C4
	lsls r0, r6, 2
	ldr r1, =@080021A8
	adds r0, r1
	ldr r0, [r0]
	mov pc, r0
	.align 2, 0
	.pool
	.align 2, 0
@080021A8:
	.4byte @080021C4
	.4byte @080021CC
	.4byte @080021D2
	.4byte @080021E4
	.4byte @080021FA
	.4byte @08002200
	.4byte @08002212
@080021C4:
	movs r3, 0xF
	ands r3, r4
	lsrs r2, r4, 4
	b @08002226
@080021CC:
	movs r3, 0xF
	ands r3, r4
	b @08002226
@080021D2:
	lsls r0, r3, 16
	asrs r0, 16
	adds r0, r4
	cmp r0, 0xF
	ble @080021E0
	movs r3, 0xF
	b @08002226
@080021E0:
	adds r0, r3, r4
	b @080021F4
@080021E4:
	lsls r0, r3, 16
	asrs r0, 16
	subs r0, r4
	cmp r0, 0
	bge @080021F2
	movs r3, 0
	b @08002226
@080021F2:
	subs r0, r3, r4
@080021F4:
	lsls r0, 16
	lsrs r3, r0, 16
	b @08002226
@080021FA:
	movs r2, 0xF
	ands r2, r4
	b @08002226
@08002200:
	lsls r0, r2, 16
	asrs r0, 16
	adds r0, r4
	cmp r0, 0xF
	ble @0800220E
	movs r2, 0xF
	b @08002226
@0800220E:
	adds r0, r2, r4
	b @08002222
@08002212:
	lsls r0, r2, 16
	asrs r0, 16
	subs r0, r4
	cmp r0, 0
	bge @08002220
	movs r2, 0
	b @08002226
@08002220:
	subs r0, r2, r4
@08002222:
	lsls r0, 16
	lsrs r2, r0, 16
@08002226:
	lsls r0, r2, 16
	asrs r0, 12
	movs r1, 0xF0
	ands r0, r1
	orrs r5, r0
	lsls r0, r3, 16
	asrs r0, 16
	movs r1, 0xF
	ands r0, r1
	orrs r5, r0
	lsls r0, r5, 16
	lsrs r5, r0, 16
	movs r0, 0x4C
	adds r1, r5, 0
	bl lcd_io_set
	lsls r0, r5, 24
	lsrs r0, 24
	pop {r4-r6}
	pop {r1}
	bx r1
	thumb_func_end mosaic_something

	thumb_func_start bg_set_tilemap
; void bg_set_tilemap(u8 bg_id, int tilemap)
bg_set_tilemap: ; 8002250
	push {r4,r5,lr}
	adds r5, r1, 0
	lsls r0, 24
	lsrs r4, r0, 24
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @0800227A
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	beq @0800227A
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0x4
	adds r1, r0
	str r5, [r1]
@0800227A:
	pop {r4,r5}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end bg_set_tilemap

	thumb_func_start bg_unset_tilemap
; void bg_unset_tilemap(u8 bg_id)
bg_unset_tilemap: ; 8002284
	push {r4,r5,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	adds r5, r0, 0
	cmp r5, 0
	bne @080022AE
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	beq @080022AE
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0x4
	adds r1, r0
	str r5, [r1]
@080022AE:
	pop {r4,r5}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end bg_unset_tilemap

	thumb_func_start bg_get_tilemap
; int bg_get_tilemap(u8 bg_id)
bg_get_tilemap: ; 80022B8
	push {r4,lr}
	lsls r0, 24
	lsrs r0, 24
	adds r4, r0, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @080022E8
	adds r0, r4, 0
	movs r1, 0x1
	bl gpu_bg_config_get_field
	lsls r0, 16
	cmp r0, 0
	beq @080022E8
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0x4
	adds r1, r0
	ldr r0, [r1]
	b @080022EA
	.align 2, 0
	.pool
@080022E8:
	movs r0, 0
@080022EA:
	pop {r4}
	pop {r1}
	bx r1
	thumb_func_end bg_get_tilemap

	thumb_func_start gpu_copy_to_wram_bg_tile_map
; void gpu_copy_to_wram_bg_tile_map(u8 bg_id, void *src, int mode, int dest_offset)
gpu_copy_to_wram_bg_tile_map: ; 80022F0
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	mov r10, r1
	lsls r0, 24
	lsrs r4, r0, 24
	mov r9, r4
	lsls r7, r2, 16
	lsrs r6, r7, 16
	lsls r3, 16
	lsrs r5, r3, 16
	mov r8, r5
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @08002358
	adds r0, r4, 0
	bl IsTileMapOutsideWram
	cmp r0, 0
	bne @08002358
	cmp r6, 0
	beq @08002340
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0x4
	adds r1, r0
	lsls r0, r5, 1
	ldr r1, [r1]
	adds r1, r0
	lsrs r2, r7, 17
	mov r0, r10
	bl CpuSet
	b @08002358
	.align 2, 0
	.pool
@08002340:
	ldr r0, =0x030008f8
	mov r2, r9
	lsls r1, r2, 4
	adds r0, 0x4
	adds r1, r0
	mov r2, r8
	lsls r0, r2, 1
	ldr r1, [r1]
	adds r1, r0
	mov r0, r10
	bl LZ77UnCompWram
@08002358:
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_copy_to_wram_bg_tile_map

	thumb_func_start gpu_copy_wram_bg_tilemap_to_vram
; void gpu_copy_wram_bg_tilemap_to_vram(int bg_id)
gpu_copy_wram_bg_tilemap_to_vram: ; 800236C
	push {r4,lr}
	sub sp, 0x4
	lsls r0, 24
	lsrs r4, r0, 24
	adds r0, r4, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @080023C8
	adds r0, r4, 0
	bl IsTileMapOutsideWram
	cmp r0, 0
	bne @080023C8
	adds r0, r4, 0
	bl bg_get_type_by_bg_id
	cmp r0, 0
	beq @0800239A
	cmp r0, 0x1
	beq @080023A6
	movs r2, 0
	b @080023B2
@0800239A:
	adds r0, r4, 0
	movs r1, 0
	bl bg_get_screen_size_in_regular_mode
	lsls r0, 27
	b @080023B0
@080023A6:
	adds r0, r4, 0
	movs r1, 0
	bl bg_get_screen_size_in_affine_mode
	lsls r0, 24
@080023B0:
	lsrs r2, r0, 16
@080023B2:
	ldr r0, =0x030008f8
	lsls r1, r4, 4
	adds r0, 0x4
	adds r1, r0
	ldr r1, [r1]
	movs r0, 0x2
	str r0, [sp]
	adds r0, r4, 0
	movs r3, 0
	bl gpu_copy_to_vram_by_bg_id
@080023C8:
	add sp, 0x4
	pop {r4}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_copy_wram_bg_tilemap_to_vram

	thumb_func_start gpu_copy_to_iwram_tile_map_rect
; void gpu_copy_to_iwram_tile_map_rect(u8 bg_id, int first_tile_num, u8 tilemap_x, u8 tilemap_y, u8 width_in_tiles, u8 height_in_tiles)
gpu_copy_to_iwram_tile_map_rect: ; 80023D4
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x4
	mov r8, r1
	ldr r1, [sp, 0x24]
	ldr r4, [sp, 0x28]
	lsls r0, 24
	lsrs r5, r0, 24
	lsls r2, 24
	lsrs r2, 24
	mov r10, r2
	lsls r3, 24
	lsrs r7, r3, 24
	lsls r1, 24
	lsrs r1, 24
	mov r9, r1
	lsls r4, 24
	lsrs r6, r4, 24
	adds r0, r5, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @080024C4
	adds r0, r5, 0
	bl IsTileMapOutsideWram
	cmp r0, 0
	bne @080024C4
	adds r0, r5, 0
	bl bg_get_type_by_bg_id
	cmp r0, 0
	beq @08002422
	cmp r0, 0x1
	beq @08002470
	b @080024C4
@08002422:
	mov r4, r8
	adds r3, r7, 0
	adds r0, r3, r6
	cmp r3, r0
	bge @080024C4
	mov r12, r0
	lsls r1, r5, 4
	ldr r0, =0x030008fc
	adds r1, r0
	mov r8, r1
@08002436:
	mov r2, r10
	mov r1, r9
	adds r0, r2, r1
	adds r7, r3, 0x1
	cmp r2, r0
	bge @08002460
	mov r1, r8
	ldr r6, [r1]
	lsls r5, r3, 5
	adds r3, r0, 0
@0800244A:
	adds r0, r5, r2
	lsls r0, 1
	adds r0, r6
	ldrh r1, [r4]
	strh r1, [r0]
	adds r4, 0x2
	adds r0, r2, 0x1
	lsls r0, 16
	lsrs r2, r0, 16
	cmp r2, r3
	blt @0800244A
@08002460:
	lsls r0, r7, 16
	lsrs r3, r0, 16
	cmp r3, r12
	blt @08002436
	b @080024C4
	.align 2, 0
	.pool
@08002470:
	mov r4, r8
	adds r0, r5, 0
	movs r1, 0x1
	bl bg_get_screen_size_in_affine_mode
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp]
	adds r3, r7, 0
	adds r0, r3, r6
	cmp r3, r0
	bge @080024C4
	mov r12, r0
	lsls r5, 4
	mov r8, r5
@0800248E:
	mov r2, r10
	mov r1, r9
	adds r0, r2, r1
	adds r7, r3, 0x1
	cmp r2, r0
	bge @080024BC
	ldr r6, =0x030008fc
	add r6, r8
	ldr r1, [sp]
	adds r5, r3, 0
	muls r5, r1
	adds r3, r0, 0
@080024A6:
	ldr r1, [r6]
	adds r0, r5, r2
	adds r1, r0
	ldrb r0, [r4]
	strb r0, [r1]
	adds r4, 0x1
	adds r0, r2, 0x1
	lsls r0, 16
	lsrs r2, r0, 16
	cmp r2, r3
	blt @080024A6
@080024BC:
	lsls r0, r7, 16
	lsrs r3, r0, 16
	cmp r3, r12
	blt @0800248E
@080024C4:
	add sp, 0x4
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end gpu_copy_to_iwram_tile_map_rect

	thumb_func_start bg_copy_tilemap_rect_simple
; void bg_copy_tilemap_rect_simple(u8 bg_id, void *src, u8 dest_x, u8 dest_y, u8 w, u8 h, u8 a7)
bg_copy_tilemap_rect_simple: ; 80024D8
	push {r4-r6,lr}
	sub sp, 0x24
	ldr r4, [sp, 0x34]
	ldr r5, [sp, 0x38]
	ldr r6, [sp, 0x3C]
	lsls r0, 24
	lsrs r0, 24
	lsls r2, 24
	lsrs r2, 24
	lsls r3, 24
	lsrs r3, 24
	lsls r4, 24
	lsrs r4, 24
	lsls r5, 24
	lsrs r5, 24
	lsls r6, 24
	lsrs r6, 24
	str r4, [sp]
	str r5, [sp, 0x4]
	str r2, [sp, 0x8]
	str r3, [sp, 0xC]
	str r4, [sp, 0x10]
	str r5, [sp, 0x14]
	str r6, [sp, 0x18]
	movs r2, 0
	str r2, [sp, 0x1C]
	str r2, [sp, 0x20]
	movs r3, 0
	bl bg_copy_tilemap_rect
	add sp, 0x24
	pop {r4-r6}
	pop {r0}
	bx r0
	thumb_func_end bg_copy_tilemap_rect_simple

	thumb_func_start bg_copy_tilemap_rect
; void bg_copy_tilemap_rect(u8 bg_id, void *src, u8 src_x, u8 src_y, u8 src_w, int src_h, u8 dest_x, u8 dest_y, u8 dest_w, u8 dest_h, u8 a11, int tile_num_delta, s16 a13)
bg_copy_tilemap_rect: ; 800251C
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x40
	str r1, [sp, 0x8]
	ldr r1, [sp, 0x60]
	ldr r4, [sp, 0x68]
	ldr r5, [sp, 0x6C]
	ldr r6, [sp, 0x70]
	ldr r7, [sp, 0x74]
	mov r8, r7
	ldr r7, [sp, 0x78]
	mov r9, r7
	ldr r7, [sp, 0x7C]
	mov r10, r7
	ldr r7, [sp, 0x80]
	mov r12, r7
	lsls r0, 24
	lsrs r0, 24
	str r0, [sp, 0x4]
	lsls r2, 24
	lsrs r2, 24
	str r2, [sp, 0xC]
	lsls r3, 24
	lsrs r3, 24
	str r3, [sp, 0x10]
	lsls r1, 24
	lsrs r7, r1, 24
	lsls r4, 24
	lsrs r4, 24
	str r4, [sp, 0x14]
	lsls r5, 24
	lsrs r5, 24
	lsls r6, 24
	lsrs r6, 24
	str r6, [sp, 0x18]
	mov r0, r8
	lsls r0, 24
	lsrs r4, r0, 24
	mov r1, r9
	lsls r1, 24
	lsrs r1, 24
	str r1, [sp, 0x1C]
	mov r2, r10
	lsls r2, 16
	lsrs r2, 16
	str r2, [sp, 0x20]
	mov r0, r12
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp, 0x24]
	ldr r0, [sp, 0x4]
	bl is_invalid_bg_id_2
	cmp r0, 0
	beq @08002592
	b @080026EE
@08002592:
	ldr r0, [sp, 0x4]
	bl IsTileMapOutsideWram
	cmp r0, 0
	beq @0800259E
	b @080026EE
@0800259E:
	ldr r0, [sp, 0x4]
	movs r1, 0x4
	bl gpu_bg_config_get_field
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp, 0x30]
	ldr r0, [sp, 0x4]
	movs r1, 0x1
	bl bg_get_screen_size_in_regular_mode
	lsls r0, 21
	lsrs r0, 16
	str r0, [sp, 0x28]
	ldr r0, [sp, 0x4]
	movs r1, 0x2
	bl bg_get_screen_size_in_regular_mode
	lsls r0, 21
	lsrs r0, 16
	str r0, [sp, 0x2C]
	ldr r0, [sp, 0x4]
	bl bg_get_type_by_bg_id
	cmp r0, 0
	beq @080025D8
	cmp r0, 0x1
	beq @08002674
	b @080026EE
@080025D8:
	ldr r1, [sp, 0x10]
	adds r0, r1, 0
	muls r0, r7
	ldr r2, [sp, 0xC]
	adds r0, r2
	lsls r0, 1
	ldr r1, [sp, 0x8]
	adds r6, r1, r0
	adds r0, r5, r4
	cmp r5, r0
	blt @080025F0
	b @080026EE
@080025F0:
	ldr r2, [sp, 0x18]
	subs r2, r7, r2
	str r2, [sp, 0x34]
	str r0, [sp, 0x38]
@080025F8:
	ldr r4, [sp, 0x14]
	ldr r7, [sp, 0x18]
	adds r0, r4, r7
	adds r1, r5, 0x1
	str r1, [sp, 0x3C]
	cmp r4, r0
	bge @0800265A
	ldr r2, [sp, 0x4]
	lsls r0, r2, 4
	ldr r1, =0x030008fc
	adds r0, r1
	mov r10, r0
	ldr r7, [sp, 0x20]
	lsls r7, 16
	mov r9, r7
	ldr r1, [sp, 0x24]
	lsls r0, r1, 16
	asrs r0, 16
	mov r8, r0
@0800261E:
	ldr r2, [sp, 0x2C]
	str r2, [sp]
	adds r0, r4, 0
	adds r1, r5, 0
	ldr r2, [sp, 0x30]
	ldr r3, [sp, 0x28]
	bl bg_get_index_from_tile_coords
	lsls r0, 16
	lsrs r0, 15
	mov r7, r10
	ldr r1, [r7]
	adds r1, r0
	mov r0, r8
	str r0, [sp]
	adds r0, r6, 0
	ldr r2, [sp, 0x1C]
	mov r7, r9
	asrs r3, r7, 16
	bl bg_copy_tilemap_entry_not_rotscale_mode
	adds r6, 0x2
	adds r0, r4, 0x1
	lsls r0, 16
	lsrs r4, r0, 16
	ldr r1, [sp, 0x14]
	ldr r2, [sp, 0x18]
	adds r0, r1, r2
	cmp r4, r0
	blt @0800261E
@0800265A:
	ldr r5, [sp, 0x34]
	lsls r0, r5, 1
	adds r6, r0
	ldr r7, [sp, 0x3C]
	lsls r0, r7, 16
	lsrs r5, r0, 16
	ldr r0, [sp, 0x38]
	cmp r5, r0
	blt @080025F8
	b @080026EE
	.align 2, 0
	.pool
@08002674:
	ldr r1, [sp, 0x10]
	adds r0, r1, 0
	muls r0, r7
	ldr r2, [sp, 0xC]
	adds r0, r2
	ldr r1, [sp, 0x8]
	adds r6, r1, r0
	ldr r0, [sp, 0x4]
	movs r1, 0x1
	bl bg_get_screen_size_in_affine_mode
	lsls r0, 16
	lsrs r0, 16
	mov r9, r0
	adds r0, r5, r4
	cmp r5, r0
	bge @080026EE
	ldr r2, [sp, 0x18]
	subs r2, r7, r2
	str r2, [sp, 0x34]
	str r0, [sp, 0x38]
	ldr r7, =0x030008fc
	mov r10, r7
	ldr r0, [sp, 0x4]
	lsls r0, 4
	mov r8, r0
@080026A8:
	ldr r4, [sp, 0x14]
	ldr r1, [sp, 0x18]
	adds r0, r4, r1
	adds r2, r5, 0x1
	str r2, [sp, 0x3C]
	cmp r4, r0
	bge @080026DE
	mov r3, r8
	add r3, r10
	mov r7, r9
	muls r7, r5
	mov r12, r7
	adds r2, r0, 0
@080026C2:
	ldr r1, [r3]
	mov r5, r12
	adds r0, r5, r4
	adds r1, r0
	ldrb r0, [r6]
	ldr r7, [sp, 0x20]
	adds r0, r7
	strb r0, [r1]
	adds r6, 0x1
	adds r0, r4, 0x1
	lsls r0, 16
	lsrs r4, r0, 16
	cmp r4, r2
	blt @080026C2
@080026DE:
	ldr r0, [sp, 0x34]
	adds r6, r0
	ldr r1, [sp, 0x3C]
	lsls r0, r1, 16
	lsrs r5, r0, 16
	ldr r2, [sp, 0x38]
	cmp r5, r2
	blt @080026A8
@080026EE:
	add sp, 0x40
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end bg_copy_tilemap_rect

	thumb_func_start bg_fill_tilemap_rect
; void bg_fill_tilemap_rect(u8 bg_id, s16 tile, u8 x, u8 y, u8 w, u8 h)
bg_fill_tilemap_rect: ; 8002704
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x4
	ldr r4, [sp, 0x24]
	ldr r5, [sp, 0x28]
	lsls r0, 24
	lsrs r6, r0, 24
	lsls r1, 16
	lsrs r1, 16
	mov r8, r1
	lsls r2, 24
	lsrs r2, 24
	mov r10, r2
	lsls r3, 24
	lsrs r7, r3, 24
	lsls r4, 24
	lsrs r4, 24
	mov r9, r4
	lsls r5, 24
	lsrs r5, 24
	adds r0, r6, 0
	bl is_invalid_bg_id_2
	cmp r0, 0
	bne @080027F0
	adds r0, r6, 0
	bl IsTileMapOutsideWram
	cmp r0, 0
	bne @080027F0
	adds r0, r6, 0
	bl bg_get_type_by_bg_id
	cmp r0, 0
	beq @08002756
	cmp r0, 0x1
	beq @080027A0
	b @080027F0
@08002756:
	adds r3, r7, 0
	adds r5, r3, r5
	cmp r3, r5
	bge @080027F0
	adds r7, r5, 0
	lsls r1, r6, 4
	ldr r0, =0x030008fc
	adds r1, r0
	mov r12, r1
@08002768:
	mov r2, r10
	mov r1, r9
	adds r0, r2, r1
	adds r6, r3, 0x1
	cmp r2, r0
	bge @08002790
	mov r5, r12
	ldr r4, [r5]
	lsls r3, 5
	adds r1, r0, 0
@0800277C:
	adds r0, r3, r2
	lsls r0, 1
	adds r0, r4
	mov r5, r8
	strh r5, [r0]
	adds r0, r2, 0x1
	lsls r0, 16
	lsrs r2, r0, 16
	cmp r2, r1
	blt @0800277C
@08002790:
	lsls r0, r6, 16
	lsrs r3, r0, 16
	cmp r3, r7
	blt @08002768
	b @080027F0
	.align 2, 0
	.pool
@080027A0:
	adds r0, r6, 0
	movs r1, 0x1
	bl bg_get_screen_size_in_affine_mode
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp]
	adds r3, r7, 0
	adds r5, r3, r5
	cmp r3, r5
	bge @080027F0
	adds r7, r5, 0
	lsls r6, 4
	mov r12, r6
@080027BC:
	mov r2, r10
	mov r1, r9
	adds r0, r2, r1
	adds r6, r3, 0x1
	cmp r2, r0
	bge @080027E8
	ldr r5, =0x030008fc
	add r5, r12
	ldr r1, [sp]
	adds r4, r3, 0
	muls r4, r1
	adds r3, r0, 0
@080027D4:
	ldr r0, [r5]
	adds r1, r4, r2
	adds r0, r1
	mov r1, r8
	strb r1, [r0]
	adds r0, r2, 0x1
	lsls r0, 16
	lsrs r2, r0, 16
	cmp r2, r3
	blt @080027D4
@080027E8:
	lsls r0, r6, 16
	lsrs r3, r0, 16
	cmp r3, r7
	blt @080027BC
@080027F0:
	add sp, 0x4
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end bg_fill_tilemap_rect

	thumb_func_start Bg_FillWramTileMapRectWithTileAndPalette
; void Bg_FillWramTileMapRectWithTileAndPalette(u8 bg_id, s16 tile_num, u8 tilemap_x, u8 tilemap_y, u8 width_in_tiles, u8 height_in_tiles, u8 palette)
Bg_FillWramTileMapRectWithTileAndPalette: ; 8002804
	push {r4-r6,lr}
	sub sp, 0x10
	ldr r4, [sp, 0x20]
	ldr r5, [sp, 0x24]
	ldr r6, [sp, 0x28]
	lsls r0, 24
	lsrs r0, 24
	lsls r1, 16
	lsrs r1, 16
	lsls r2, 24
	lsrs r2, 24
	lsls r3, 24
	lsrs r3, 24
	lsls r4, 24
	lsrs r4, 24
	lsls r5, 24
	lsrs r5, 24
	lsls r6, 24
	lsrs r6, 24
	str r4, [sp]
	str r5, [sp, 0x4]
	str r6, [sp, 0x8]
	movs r4, 0
	str r4, [sp, 0xC]
	bl bg_write_sequence_to_wram_tile_map_rect
	add sp, 0x10
	pop {r4-r6}
	pop {r0}
	bx r0
	thumb_func_end Bg_FillWramTileMapRectWithTileAndPalette

	thumb_func_start bg_write_sequence_to_wram_tile_map_rect
; void bg_write_sequence_to_wram_tile_map_rect(u8 bg_id, s16 first_tile_num, u8 tilemap_x, u8 tilemap_y, u8 width_in_tiles, u8 height_in_tiles, u8 palette, u16 tile_num_inc_amount)
bg_write_sequence_to_wram_tile_map_rect: ; 8002840
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x2C
	ldr r4, [sp, 0x4C]
	ldr r5, [sp, 0x50]
	ldr r6, [sp, 0x54]
	ldr r7, [sp, 0x58]
	mov r8, r7
	lsls r0, 24
	lsrs r0, 24
	mov r9, r0
	add r0, sp, 0x4
	strh r1, [r0]
	lsls r2, 24
	lsrs r2, 24
	str r2, [sp, 0x8]
	lsls r3, 24
	lsrs r7, r3, 24
	lsls r4, 24
	lsrs r4, 24
	mov r10, r4
	lsls r5, 24
	lsrs r4, r5, 24
	lsls r6, 24
	lsrs r6, 24
	str r6, [sp, 0xC]
	mov r0, r8
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp, 0x10]
	mov r0, r9
	bl is_invalid_bg_id_2
	cmp r0, 0
	beq @0800288E
	b @080029D4
@0800288E:
	mov r0, r9
	bl IsTileMapOutsideWram
	cmp r0, 0
	beq @0800289A
	b @080029D4
@0800289A:
	mov r0, r9
	movs r1, 0x4
	bl gpu_bg_config_get_field
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp, 0x1C]
	mov r0, r9
	movs r1, 0x1
	bl bg_get_screen_size_in_regular_mode
	lsls r0, 21
	lsrs r0, 16
	str r0, [sp, 0x14]
	mov r0, r9
	movs r1, 0x2
	bl bg_get_screen_size_in_regular_mode
	lsls r0, 21
	lsrs r0, 16
	str r0, [sp, 0x18]
	mov r0, r9
	bl bg_get_type_by_bg_id
	cmp r0, 0
	beq @080028D4
	cmp r0, 0x1
	beq @0800295C
	b @080029D4
@080028D4:
	adds r5, r7, 0
	adds r0, r5, r4
	cmp r5, r0
	bge @080029D4
	str r0, [sp, 0x24]
	add r7, sp, 0x4
@080028E0:
	ldr r4, [sp, 0x8]
	mov r1, r10
	adds r0, r4, r1
	adds r2, r5, 0x1
	mov r8, r2
	cmp r4, r0
	bge @08002944
	mov r3, r9
	lsls r1, r3, 4
	ldr r0, =0x030008fc
	adds r6, r1, r0
@080028F6:
	ldr r0, [sp, 0x18]
	str r0, [sp]
	adds r0, r4, 0
	adds r1, r5, 0
	ldr r2, [sp, 0x1C]
	ldr r3, [sp, 0x14]
	bl bg_get_index_from_tile_coords
	lsls r0, 16
	lsrs r0, 15
	ldr r1, [r6]
	adds r1, r0
	movs r0, 0
	str r0, [sp]
	add r0, sp, 0x4
	ldr r2, [sp, 0xC]
	movs r3, 0
	bl bg_copy_tilemap_entry_not_rotscale_mode
	ldrh r0, [r7]
	movs r2, 0xFC
	lsls r2, 8
	adds r1, r2, 0
	adds r2, r0, 0
	ands r2, r1
	ldr r3, [sp, 0x10]
	adds r0, r3
	ldr r3, =0x000003ff
	adds r1, r3, 0
	ands r0, r1
	adds r2, r0
	strh r2, [r7]
	adds r0, r4, 0x1
	lsls r0, 16
	lsrs r4, r0, 16
	ldr r0, [sp, 0x8]
	add r0, r10
	cmp r4, r0
	blt @080028F6
@08002944:
	mov r1, r8
	lsls r0, r1, 16
	lsrs r5, r0, 16
	ldr r2, [sp, 0x24]
	cmp r5, r2
	blt @080028E0
	b @080029D4
	.align 2, 0
	.pool
@0800295C:
	mov r0, r9
	movs r1, 0x1
	bl bg_get_screen_size_in_affine_mode
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp, 0x20]
	adds r5, r7, 0
	adds r0, r5, r4
	cmp r5, r0
	bge @080029D4
	str r0, [sp, 0x24]
	mov r3, r9
	lsls r3, 4
	mov r12, r3
@0800297A:
	ldr r4, [sp, 0x8]
	mov r7, r10
	adds r0, r4, r7
	adds r1, r5, 0x1
	mov r8, r1
	cmp r4, r0
	bge @080029C8
	ldr r2, =0x030008fc
	add r2, r12
	str r2, [sp, 0x28]
	ldr r7, [sp, 0x20]
	adds r3, r5, 0
	muls r3, r7
	add r2, sp, 0x4
	movs r1, 0xFC
	lsls r1, 8
	mov r9, r1
	ldr r7, =0x000003ff
	adds r5, r7, 0
	adds r6, r0, 0
@080029A2:
	ldr r0, [sp, 0x28]
	ldr r1, [r0]
	adds r0, r3, r4
	adds r1, r0
	ldrh r0, [r2]
	strb r0, [r1]
	ldrh r0, [r2]
	mov r1, r9
	ands r1, r0
	ldr r7, [sp, 0x10]
	adds r0, r7
	ands r0, r5
	adds r1, r0
	strh r1, [r2]
	adds r0, r4, 0x1
	lsls r0, 16
	lsrs r4, r0, 16
	cmp r4, r6
	blt @080029A2
@080029C8:
	mov r1, r8
	lsls r0, r1, 16
	lsrs r5, r0, 16
	ldr r2, [sp, 0x24]
	cmp r5, r2
	blt @0800297A
@080029D4:
	add sp, 0x2C
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	.align 2, 0
	.pool
	thumb_func_end bg_write_sequence_to_wram_tile_map_rect

	thumb_func_start bg_get_screen_size_in_regular_mode
; int bg_get_screen_size_in_regular_mode(u8 bg_id, int mode)
bg_get_screen_size_in_regular_mode: ; 80029EC
	push {r4,r5,lr}
	lsls r0, 24
	lsrs r0, 24
	lsls r1, 24
	lsrs r4, r1, 24
	adds r5, r4, 0
	movs r1, 0x4
	bl gpu_bg_config_get_field
	lsls r0, 24
	lsrs r0, 24
	cmp r4, 0x1
	beq @08002A2C
	cmp r4, 0x1
	bgt @08002A10
	cmp r4, 0
	beq @08002A16
	b @08002A52
@08002A10:
	cmp r5, 0x2
	beq @08002A3E
	b @08002A52
@08002A16:
	cmp r0, 0x2
	bgt @08002A24
	cmp r0, 0x1
	bge @08002A4E
@08002A1E:
	cmp r0, 0
	beq @08002A46
	b @08002A52
@08002A24:
	cmp r0, 0x3
	bne @08002A52
	movs r0, 0x4
	b @08002A54
@08002A2C:
	cmp r0, 0x1
	beq @08002A4E
	cmp r0, 0x1
	ble @08002A1E
	cmp r0, 0x2
	beq @08002A46
	cmp r0, 0x3
	bne @08002A52
	b @08002A4E
@08002A3E:
	cmp r0, 0
	blt @08002A52
	cmp r0, 0x1
	bgt @08002A4A
@08002A46:
	movs r0, 0x1
	b @08002A54
@08002A4A:
	cmp r0, 0x3
	bgt @08002A52
@08002A4E:
	movs r0, 0x2
	b @08002A54
@08002A52:
	movs r0, 0
@08002A54:
	pop {r4,r5}
	pop {r1}
	bx r1
	thumb_func_end bg_get_screen_size_in_regular_mode

	thumb_func_start bg_get_screen_size_in_affine_mode
; int bg_get_screen_size_in_affine_mode(u8 bg_id, u8 a2)
bg_get_screen_size_in_affine_mode: ; 8002A5C
	push {r4,lr}
	lsls r0, 24
	lsrs r0, 24
	lsls r1, 24
	lsrs r4, r1, 24
	movs r1, 0x4
	bl gpu_bg_config_get_field
	lsls r0, 24
	lsrs r1, r0, 24
	adds r0, r1, 0
	cmp r4, 0
	beq @08002A84
	cmp r4, 0
	blt @08002AAC
	cmp r4, 0x2
	bgt @08002AAC
	movs r0, 0x10
	lsls r0, r1
	b @08002AAE
@08002A84:
	cmp r1, 0x1
	beq @08002AA0
	cmp r1, 0x1
	bgt @08002A92
	cmp r1, 0
	beq @08002A9C
	b @08002AAC
@08002A92:
	cmp r0, 0x2
	beq @08002AA4
	cmp r0, 0x3
	beq @08002AA8
	b @08002AAC
@08002A9C:
	movs r0, 0x1
	b @08002AAE
@08002AA0:
	movs r0, 0x4
	b @08002AAE
@08002AA4:
	movs r0, 0x10
	b @08002AAE
@08002AA8:
	movs r0, 0x40
	b @08002AAE
@08002AAC:
	movs r0, 0
@08002AAE:
	pop {r4}
	pop {r1}
	bx r1
	thumb_func_end bg_get_screen_size_in_affine_mode

	thumb_func_start bg_get_index_from_tile_coords
; int bg_get_index_from_tile_coords(int tilemap_x, int tilemap_y, int screen_size, int tilemap_w, int tilemap_h)
bg_get_index_from_tile_coords: ; 8002AB4
	push {r4,lr}
	adds r4, r0, 0
	ldr r0, [sp, 0x8]
	subs r3, 0x1
	ands r4, r3
	subs r0, 0x1
	ands r1, r0
	cmp r2, 0x1
	beq @08002AD8
	cmp r2, 0x1
	ble @08002AE0
	cmp r2, 0x2
	beq @08002AE0
	cmp r2, 0x3
	bne @08002AE0
	cmp r1, 0x1F
	ble @08002AD8
	adds r1, 0x20
@08002AD8:
	cmp r4, 0x1F
	ble @08002AE0
	subs r4, 0x20
	adds r1, 0x20
@08002AE0:
	lsls r0, r1, 5
	adds r0, r4
	pop {r4}
	pop {r1}
	bx r1
	thumb_func_end bg_get_index_from_tile_coords

	thumb_func_start bg_copy_tilemap_entry_not_rotscale_mode
; void bg_copy_tilemap_entry_not_rotscale_mode(u16 *tile_src, u16 *tile_dest, signed int palette, s16 a4, int a5)
bg_copy_tilemap_entry_not_rotscale_mode: ; 8002AEC
	push {r4-r6,lr}
	adds r4, r0, 0
	adds r6, r1, 0
	ldr r5, [sp, 0x10]
	cmp r2, 0x10
	beq @08002B14
	cmp r2, 0x10
	bgt @08002B34
	cmp r2, 0
	blt @08002B34
	ldrh r0, [r4]
	adds r0, r3
	ldr r3, =0x00000fff
	adds r1, r3, 0
	ands r0, r1
	adds r1, r2, r5
	lsls r1, 12
	b @08002B3A
	.align 2, 0
	.pool
@08002B14:
	ldrh r1, [r6]
	movs r0, 0xFC
	lsls r0, 8
	ands r1, r0
	lsls r2, r5, 12
	adds r2, r1, r2
	ldrh r0, [r4]
	adds r0, r3
	ldr r3, =0x000003ff
	adds r1, r3, 0
	ands r0, r1
	orrs r0, r2
	b @08002B3C
	.align 2, 0
	.pool
@08002B34:
	ldrh r0, [r4]
	adds r0, r3
	lsls r1, r5, 12
@08002B3A:
	adds r0, r1
@08002B3C:
	lsls r0, 16
	lsrs r1, r0, 16
	strh r1, [r6]
	pop {r4-r6}
	pop {r0}
	bx r0
	thumb_func_end bg_copy_tilemap_entry_not_rotscale_mode

	thumb_func_start bg_get_type_by_bg_id
; u16 bg_get_type_by_bg_id(u8 bg_id)
bg_get_type_by_bg_id: ; 8002B48
	push {r4,r5,lr}
	lsls r0, 24
	lsrs r4, r0, 24
	adds r5, r4, 0
	bl gpu_get_bg_mode
	lsls r0, 24
	lsrs r0, 24
	cmp r4, 0x2
	beq @08002B76
	cmp r4, 0x2
	ble @08002B66
	cmp r4, 0x3
	beq @08002B86
	b @08002B8E
@08002B66:
	cmp r5, 0
	blt @08002B8E
	cmp r0, 0x1
	bgt @08002B8E
	cmp r0, 0
	blt @08002B8E
@08002B72:
	movs r0, 0
	b @08002B90
@08002B76:
	cmp r0, 0
	beq @08002B72
	cmp r0, 0
	blt @08002B8E
	cmp r0, 0x2
	bgt @08002B8E
@08002B82:
	movs r0, 0x1
	b @08002B90
@08002B86:
	cmp r0, 0
	beq @08002B72
	cmp r0, 0x2
	beq @08002B82
@08002B8E:
	ldr r0, =0x0000ffff
@08002B90:
	pop {r4,r5}
	pop {r1}
	bx r1
	.align 2, 0
	.pool
	thumb_func_end bg_get_type_by_bg_id

	thumb_func_start is_invalid_bg_id_2
; int is_invalid_bg_id_2(u8 bg_id)
is_invalid_bg_id_2: ; 8002B9C
	push {lr}
	lsls r0, 24
	lsrs r0, 24
	cmp r0, 0x3
	bhi @08002BAA
	movs r0, 0
	b @08002BAC
@08002BAA:
	movs r0, 0x1
@08002BAC:
	pop {r1}
	bx r1
	thumb_func_end is_invalid_bg_id_2

	thumb_func_start IsTileMapOutsideWram
; bool IsTileMapOutsideWram(u8 bg_id)
IsTileMapOutsideWram: ; 8002BB0
	push {lr}
	lsls r0, 24
	ldr r1, =0x030008f8
	lsrs r0, 20
	adds r1, 0x4
	adds r0, r1
	ldr r1, [r0]
	ldr r0, =0x03008000
	cmp r1, r0
	bhi @08002BD4
	cmp r1, 0
	beq @08002BD4
	movs r0, 0
	b @08002BD6
	.align 2, 0
	.pool
@08002BD4:
	movs r0, 0x1
@08002BD6:
	pop {r1}
	bx r1
	thumb_func_end IsTileMapOutsideWram