decompile sub_80FB600 - sub_80FBB3C

3 files changed, 343 insertions, 873 deletions

diff --git a/asm/region_map.s b/asm/region_map.s
index e4d4ad34c..6ed4185fc 100644
--- a/asm/region_map.s
+++ b/asm/region_map.s
@@ -6,815 +6,6 @@
 
 	.text
 
-	thumb_func_start sub_80FB600
-sub_80FB600: @ 80FB600
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0x8
-	movs r7, 0
-	movs r0, 0
-	mov r8, r0
-	mov r4, sp
-	adds r4, 0x1
-	mov r5, sp
-	adds r5, 0x2
-	add r6, sp, 0x4
-	mov r0, sp
-	adds r1, r4, 0
-	adds r2, r5, 0
-	adds r3, r6, 0
-	bl GetSSTidalLocation
-	lsls r0, 24
-	lsrs r0, 24
-	mov r10, r5
-	cmp r0, 0x4
-	bhi _080FB694
-	lsls r0, 2
-	ldr r1, _080FB63C @ =_080FB640
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_080FB63C: .4byte _080FB640
-	.align 2, 0
-_080FB640:
-	.4byte _080FB694
-	.4byte _080FB654
-	.4byte _080FB664
-	.4byte _080FB674
-	.4byte _080FB684
-_080FB654:
-	ldr r2, _080FB660 @ =gUnknown_020388CC
-	ldr r1, [r2]
-	movs r0, 0x8
-	strh r0, [r1, 0x14]
-	b _080FB710
-	.align 2, 0
-_080FB660: .4byte gUnknown_020388CC
-_080FB664:
-	ldr r2, _080FB670 @ =gUnknown_020388CC
-	ldr r1, [r2]
-	movs r0, 0xC
-	strh r0, [r1, 0x14]
-	b _080FB710
-	.align 2, 0
-_080FB670: .4byte gUnknown_020388CC
-_080FB674:
-	ldr r2, _080FB680 @ =gUnknown_020388CC
-	ldr r1, [r2]
-	movs r0, 0x27
-	strh r0, [r1, 0x14]
-	b _080FB710
-	.align 2, 0
-_080FB680: .4byte gUnknown_020388CC
-_080FB684:
-	ldr r2, _080FB690 @ =gUnknown_020388CC
-	ldr r1, [r2]
-	movs r0, 0x2E
-	strh r0, [r1, 0x14]
-	b _080FB710
-	.align 2, 0
-_080FB690: .4byte gUnknown_020388CC
-_080FB694:
-	mov r0, sp
-	ldrb r0, [r0]
-	ldrb r1, [r4]
-	bl get_mapheader_by_bank_and_number
-	ldr r1, _080FB750 @ =gUnknown_020388CC
-	mov r9, r1
-	ldr r2, [r1]
-	ldrb r1, [r0, 0x14]
-	strh r1, [r2, 0x14]
-	ldr r6, [r0]
-	ldr r1, _080FB754 @ =gRegionMapLocations
-	ldrh r0, [r2, 0x14]
-	lsls r0, 3
-	adds r5, r0, r1
-	ldrb r4, [r5, 0x2]
-	ldr r0, [r6]
-	adds r1, r4, 0
-	bl __divsi3
-	lsls r0, 16
-	lsrs r1, r0, 16
-	cmp r1, 0
-	bne _080FB6C6
-	movs r1, 0x1
-_080FB6C6:
-	mov r2, r10
-	movs r3, 0
-	ldrsh r0, [r2, r3]
-	bl __divsi3
-	lsls r0, 16
-	lsrs r0, 16
-	mov r8, r0
-	cmp r8, r4
-	bcc _080FB6E2
-	subs r0, r4, 0x1
-	lsls r0, 16
-	lsrs r0, 16
-	mov r8, r0
-_080FB6E2:
-	ldrb r4, [r5, 0x3]
-	ldr r0, [r6, 0x4]
-	adds r1, r4, 0
-	bl __divsi3
-	lsls r0, 16
-	lsrs r1, r0, 16
-	cmp r1, 0
-	bne _080FB6F6
-	movs r1, 0x1
-_080FB6F6:
-	mov r2, sp
-	movs r3, 0x4
-	ldrsh r0, [r2, r3]
-	bl __divsi3
-	lsls r0, 16
-	lsrs r7, r0, 16
-	mov r2, r9
-	cmp r7, r4
-	bcc _080FB710
-	subs r0, r4, 0x1
-	lsls r0, 16
-	lsrs r7, r0, 16
-_080FB710:
-	ldr r0, [r2]
-	adds r0, 0x7F
-	movs r1, 0
-	strb r1, [r0]
-	ldr r2, [r2]
-	ldr r3, _080FB754 @ =gRegionMapLocations
-	ldrh r0, [r2, 0x14]
-	lsls r0, 3
-	adds r0, r3
-	ldrb r0, [r0]
-	add r0, r8
-	adds r0, 0x1
-	adds r1, r2, 0
-	adds r1, 0x54
-	strh r0, [r1]
-	ldrh r0, [r2, 0x14]
-	lsls r0, 3
-	adds r0, r3
-	ldrb r0, [r0, 0x1]
-	adds r0, r7, r0
-	adds r0, 0x2
-	adds r2, 0x56
-	strh r0, [r2]
-	add sp, 0x8
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080FB750: .4byte gUnknown_020388CC
-_080FB754: .4byte gRegionMapLocations
-	thumb_func_end sub_80FB600
-
-	thumb_func_start sub_80FB758
-sub_80FB758: @ 80FB758
-	push {lr}
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x58
-	bls _080FB764
-	b _080FB9A0
-_080FB764:
-	lsls r0, 2
-	ldr r1, _080FB770 @ =_080FB774
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_080FB770: .4byte _080FB774
-	.align 2, 0
-_080FB774:
-	.4byte _080FB8DC
-	.4byte _080FB8E4
-	.4byte _080FB8EA
-	.4byte _080FB8F4
-	.4byte _080FB8FC
-	.4byte _080FB904
-	.4byte _080FB90C
-	.4byte _080FB914
-	.4byte _080FB91C
-	.4byte _080FB924
-	.4byte _080FB92C
-	.4byte _080FB934
-	.4byte _080FB93C
-	.4byte _080FB944
-	.4byte _080FB94C
-	.4byte _080FB954
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB96C
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB988
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB9A0
-	.4byte _080FB8D8
-_080FB8D8:
-	movs r0, 0
-	b _080FB9A2
-_080FB8DC:
-	ldr r0, _080FB8E0 @ =0x0000080f
-	b _080FB956
-	.align 2, 0
-_080FB8E0: .4byte 0x0000080f
-_080FB8E4:
-	movs r0, 0x81
-	lsls r0, 4
-	b _080FB956
-_080FB8EA:
-	ldr r0, _080FB8F0 @ =0x00000811
-	b _080FB956
-	.align 2, 0
-_080FB8F0: .4byte 0x00000811
-_080FB8F4:
-	ldr r0, _080FB8F8 @ =0x00000812
-	b _080FB956
-	.align 2, 0
-_080FB8F8: .4byte 0x00000812
-_080FB8FC:
-	ldr r0, _080FB900 @ =0x00000813
-	b _080FB956
-	.align 2, 0
-_080FB900: .4byte 0x00000813
-_080FB904:
-	ldr r0, _080FB908 @ =0x00000814
-	b _080FB956
-	.align 2, 0
-_080FB908: .4byte 0x00000814
-_080FB90C:
-	ldr r0, _080FB910 @ =0x00000815
-	b _080FB956
-	.align 2, 0
-_080FB910: .4byte 0x00000815
-_080FB914:
-	ldr r0, _080FB918 @ =0x00000816
-	b _080FB956
-	.align 2, 0
-_080FB918: .4byte 0x00000816
-_080FB91C:
-	ldr r0, _080FB920 @ =0x00000817
-	b _080FB956
-	.align 2, 0
-_080FB920: .4byte 0x00000817
-_080FB924:
-	ldr r0, _080FB928 @ =0x00000818
-	b _080FB956
-	.align 2, 0
-_080FB928: .4byte 0x00000818
-_080FB92C:
-	ldr r0, _080FB930 @ =0x00000819
-	b _080FB956
-	.align 2, 0
-_080FB930: .4byte 0x00000819
-_080FB934:
-	ldr r0, _080FB938 @ =0x0000081a
-	b _080FB956
-	.align 2, 0
-_080FB938: .4byte 0x0000081a
-_080FB93C:
-	ldr r0, _080FB940 @ =0x0000081b
-	b _080FB956
-	.align 2, 0
-_080FB940: .4byte 0x0000081b
-_080FB944:
-	ldr r0, _080FB948 @ =0x0000081c
-	b _080FB956
-	.align 2, 0
-_080FB948: .4byte 0x0000081c
-_080FB94C:
-	ldr r0, _080FB950 @ =0x0000081d
-	b _080FB956
-	.align 2, 0
-_080FB950: .4byte 0x0000081d
-_080FB954:
-	ldr r0, _080FB968 @ =0x0000081e
-_080FB956:
-	bl FlagGet
-	lsls r0, 24
-	movs r1, 0x3
-	cmp r0, 0
-	beq _080FB964
-	movs r1, 0x2
-_080FB964:
-	adds r0, r1, 0
-	b _080FB9A2
-	.align 2, 0
-_080FB968: .4byte 0x0000081e
-_080FB96C:
-	ldr r0, _080FB984 @ =0x00000848
-	bl FlagGet
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	negs r0, r1
-	orrs r0, r1
-	asrs r0, 31
-	movs r1, 0x4
-	ands r0, r1
-	b _080FB9A2
-	.align 2, 0
-_080FB984: .4byte 0x00000848
-_080FB988:
-	ldr r0, _080FB99C @ =0x00000849
-	bl FlagGet
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	negs r0, r1
-	orrs r0, r1
-	lsrs r0, 31
-	b _080FB9A2
-	.align 2, 0
-_080FB99C: .4byte 0x00000849
-_080FB9A0:
-	movs r0, 0x1
-_080FB9A2:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80FB758
-
-	thumb_func_start GetRegionMapSectionAt_
-GetRegionMapSectionAt_: @ 80FB9A8
-	push {lr}
-	lsls r0, 16
-	lsrs r0, 16
-	lsls r1, 16
-	lsrs r1, 16
-	bl GetRegionMapSectionAt
-	lsls r0, 16
-	lsrs r0, 16
-	pop {r1}
-	bx r1
-	thumb_func_end GetRegionMapSectionAt_
-
-	thumb_func_start sub_80FB9C0
-sub_80FB9C0: @ 80FB9C0
-	push {r4-r6,lr}
-	lsls r0, 16
-	lsrs r3, r0, 16
-	movs r2, 0
-	ldr r0, _080FB9E8 @ =gUnknown_083E7684
-	ldrh r1, [r0]
-	adds r4, r0, 0
-	cmp r1, 0x58
-	beq _080FB9FC
-	adds r5, r4, 0
-	adds r6, r4, 0x2
-_080FB9D6:
-	lsls r1, r2, 2
-	adds r0, r1, r5
-	ldrh r0, [r0]
-	cmp r0, r3
-	bne _080FB9EC
-	adds r0, r1, r6
-	ldrh r0, [r0]
-	b _080FB9FE
-	.align 2, 0
-_080FB9E8: .4byte gUnknown_083E7684
-_080FB9EC:
-	adds r0, r2, 0x1
-	lsls r0, 16
-	lsrs r2, r0, 16
-	lsls r0, r2, 2
-	adds r0, r4
-	ldrh r0, [r0]
-	cmp r0, 0x58
-	bne _080FB9D6
-_080FB9FC:
-	adds r0, r3, 0
-_080FB9FE:
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80FB9C0
-
-	thumb_func_start sub_80FBA04
-sub_80FBA04: @ 80FBA04
-	push {lr}
-	lsls r0, 16
-	lsrs r0, 16
-	bl sub_80FB9C0
-	lsls r0, 16
-	lsrs r0, 16
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80FBA04
-
-	thumb_func_start sub_80FBA18
-sub_80FBA18: @ 80FBA18
-	push {r4-r6,lr}
-	ldr r0, _080FBA2C @ =gUnknown_020388CC
-	ldr r1, [r0]
-	ldrh r0, [r1, 0x14]
-	cmp r0, 0x58
-	bne _080FBA30
-	movs r0, 0
-	strb r0, [r1, 0x17]
-	b _080FBA96
-	.align 2, 0
-_080FBA2C: .4byte gUnknown_020388CC
-_080FBA30:
-	adds r0, r1, 0
-	adds r0, 0x78
-	ldrb r0, [r0]
-	cmp r0, 0
-	bne _080FBA40
-	adds r0, r1, 0
-	adds r0, 0x54
-	b _080FBA44
-_080FBA40:
-	adds r0, r1, 0
-	adds r0, 0x64
-_080FBA44:
-	ldrh r4, [r0]
-	adds r0, 0x2
-	ldrh r5, [r0]
-	movs r6, 0
-	b _080FBA70
-_080FBA4E:
-	subs r0, r4, 0x1
-	lsls r0, 16
-	lsrs r4, r0, 16
-	adds r0, r4, 0
-	adds r1, r5, 0
-	bl GetRegionMapSectionAt
-	ldr r1, _080FBA8C @ =gUnknown_020388CC
-	ldr r1, [r1]
-	lsls r0, 16
-	lsrs r0, 16
-	ldrh r1, [r1, 0x14]
-	cmp r0, r1
-	bne _080FBA70
-	adds r0, r6, 0x1
-	lsls r0, 16
-	lsrs r6, r0, 16
-_080FBA70:
-	cmp r4, 0x1
-	bhi _080FBA4E
-	adds r0, r5, 0
-	bl sub_80FBAA0
-	lsls r0, 24
-	cmp r0, 0
-	beq _080FBA90
-	subs r0, r5, 0x1
-	lsls r0, 16
-	lsrs r5, r0, 16
-	movs r4, 0x1D
-	b _080FBA70
-	.align 2, 0
-_080FBA8C: .4byte gUnknown_020388CC
-_080FBA90:
-	ldr r0, _080FBA9C @ =gUnknown_020388CC
-	ldr r0, [r0]
-	strb r6, [r0, 0x17]
-_080FBA96:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080FBA9C: .4byte gUnknown_020388CC
-	thumb_func_end sub_80FBA18
-
-	thumb_func_start sub_80FBAA0
-sub_80FBAA0: @ 80FBAA0
-	push {r4,r5,lr}
-	lsls r0, 16
-	ldr r1, _080FBAB4 @ =0xffff0000
-	adds r0, r1
-	lsrs r5, r0, 16
-	ldr r0, _080FBAB8 @ =0x0000ffff
-	cmp r5, r0
-	bne _080FBAC0
-	b _080FBAE2
-	.align 2, 0
-_080FBAB4: .4byte 0xffff0000
-_080FBAB8: .4byte 0x0000ffff
-_080FBABC:
-	movs r0, 0x1
-	b _080FBAE4
-_080FBAC0:
-	movs r4, 0x1
-_080FBAC2:
-	adds r0, r4, 0
-	adds r1, r5, 0
-	bl GetRegionMapSectionAt
-	ldr r1, _080FBAEC @ =gUnknown_020388CC
-	ldr r1, [r1]
-	lsls r0, 16
-	lsrs r0, 16
-	ldrh r1, [r1, 0x14]
-	cmp r0, r1
-	beq _080FBABC
-	adds r0, r4, 0x1
-	lsls r0, 16
-	lsrs r4, r0, 16
-	cmp r4, 0x1C
-	bls _080FBAC2
-_080FBAE2:
-	movs r0, 0
-_080FBAE4:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080FBAEC: .4byte gUnknown_020388CC
-	thumb_func_end sub_80FBAA0
-
-	thumb_func_start sub_80FBAF0
-sub_80FBAF0: @ 80FBAF0
-	push {r4,lr}
-	adds r2, r0, 0
-	ldr r0, _080FBB34 @ =gUnknown_020388CC
-	ldr r1, [r0]
-	adds r3, r1, 0
-	adds r3, 0x7A
-	movs r0, 0
-	ldrsb r0, [r3, r0]
-	cmp r0, 0
-	beq _080FBB2E
-	adds r0, r1, 0
-	adds r0, 0x7B
-	ldrb r0, [r0]
-	lsls r0, 24
-	asrs r0, 24
-	lsls r0, 1
-	ldrh r4, [r2, 0x20]
-	adds r0, r4
-	strh r0, [r2, 0x20]
-	adds r0, r1, 0
-	adds r0, 0x7C
-	ldrb r0, [r0]
-	lsls r0, 24
-	asrs r0, 24
-	lsls r0, 1
-	ldrh r1, [r2, 0x22]
-	adds r0, r1
-	strh r0, [r2, 0x22]
-	ldrb r0, [r3]
-	subs r0, 0x1
-	strb r0, [r3]
-_080FBB2E:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080FBB34: .4byte gUnknown_020388CC
-	thumb_func_end sub_80FBAF0
-
-	thumb_func_start nullsub_66
-nullsub_66: @ 80FBB38
-	bx lr
-	thumb_func_end nullsub_66
-
-	thumb_func_start sub_80FBB3C
-sub_80FBB3C: @ 80FBB3C
-	push {r4-r7,lr}
-	sub sp, 0x28
-	lsls r0, 16
-	lsls r1, 16
-	lsrs r6, r1, 16
-	ldr r1, _080FBBAC @ =gUnknown_083E76E8
-	ldr r2, [r1, 0x4]
-	ldr r1, [r1]
-	str r1, [sp, 0x20]
-	str r2, [sp, 0x24]
-	mov r2, sp
-	ldr r1, _080FBBB0 @ =gSpriteTemplate_83E76F0
-	ldm r1!, {r3-r5}
-	stm r2!, {r3-r5}
-	ldm r1!, {r3-r5}
-	stm r2!, {r3-r5}
-	lsrs r3, r0, 16
-	add r2, sp, 0x18
-	ldrh r1, [r2, 0x4]
-	orrs r1, r0
-	str r1, [r2, 0x4]
-	mov r0, sp
-	strh r3, [r0]
-	ldr r0, _080FBBB4 @ =gUnknown_020388CC
-	ldr r4, [r0]
-	adds r0, r4, 0
-	adds r0, 0x58
-	strh r3, [r0]
-	ldr r5, _080FBBB8 @ =0xffff0000
-	add r1, sp, 0x20
-	ldr r0, [r1, 0x4]
-	ands r0, r5
-	orrs r0, r6
-	str r0, [r1, 0x4]
-	mov r0, sp
-	strh r6, [r0, 0x2]
-	adds r3, r4, 0
-	adds r0, r3, 0
-	adds r0, 0x5A
-	strh r6, [r0]
-	adds r0, 0x1E
-	ldrb r0, [r0]
-	adds r7, r1, 0
-	cmp r0, 0
-	bne _080FBBC0
-	movs r1, 0xC0
-	lsls r1, 1
-	adds r0, r3, r1
-	str r0, [sp, 0x18]
-	ldr r0, [r2, 0x4]
-	ands r0, r5
-	subs r1, 0x80
-	orrs r0, r1
-	str r0, [r2, 0x4]
-	ldr r0, _080FBBBC @ =sub_80FBAF0
-	b _080FBBD6
-	.align 2, 0
-_080FBBAC: .4byte gUnknown_083E76E8
-_080FBBB0: .4byte gSpriteTemplate_83E76F0
-_080FBBB4: .4byte gUnknown_020388CC
-_080FBBB8: .4byte 0xffff0000
-_080FBBBC: .4byte sub_80FBAF0
-_080FBBC0:
-	movs r3, 0xA0
-	lsls r3, 2
-	adds r0, r4, r3
-	str r0, [sp, 0x18]
-	ldr r0, [r2, 0x4]
-	ands r0, r5
-	movs r1, 0xC0
-	lsls r1, 3
-	orrs r0, r1
-	str r0, [r2, 0x4]
-	ldr r0, _080FBC38 @ =nullsub_66
-_080FBBD6:
-	str r0, [sp, 0x14]
-	adds r0, r2, 0
-	bl LoadSpriteSheet
-	adds r0, r7, 0
-	bl LoadSpritePalette
-	mov r0, sp
-	movs r1, 0x38
-	movs r2, 0x48
-	movs r3, 0
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x40
-	beq _080FBC90
-	ldr r4, _080FBC3C @ =gUnknown_020388CC
-	ldr r2, [r4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080FBC40 @ =gSprites
-	adds r3, r0, r1
-	str r3, [r2, 0x1C]
-	adds r2, 0x78
-	ldrb r0, [r2]
-	cmp r0, 0x1
-	bne _080FBC44
-	ldrb r1, [r3, 0x3]
-	movs r0, 0x3F
-	ands r0, r1
-	movs r1, 0x80
-	orrs r0, r1
-	strb r0, [r3, 0x3]
-	ldr r2, [r4]
-	ldr r1, [r2, 0x1C]
-	ldrh r0, [r1, 0x20]
-	subs r0, 0x8
-	strh r0, [r1, 0x20]
-	ldr r1, [r2, 0x1C]
-	ldrh r0, [r1, 0x22]
-	subs r0, 0x8
-	strh r0, [r1, 0x22]
-	ldr r0, [r2, 0x1C]
-	movs r1, 0x1
-	bl StartSpriteAnim
-	b _080FBC6C
-	.align 2, 0
-_080FBC38: .4byte nullsub_66
-_080FBC3C: .4byte gUnknown_020388CC
-_080FBC40: .4byte gSprites
-_080FBC44:
-	ldrb r1, [r3, 0x3]
-	movs r0, 0x3F
-	ands r0, r1
-	movs r1, 0x40
-	orrs r0, r1
-	strb r0, [r3, 0x3]
-	ldr r1, [r4]
-	ldr r2, [r1, 0x1C]
-	adds r0, r1, 0
-	adds r0, 0x54
-	ldrh r0, [r0]
-	lsls r0, 3
-	adds r0, 0x4
-	strh r0, [r2, 0x20]
-	ldr r2, [r1, 0x1C]
-	adds r1, 0x56
-	ldrh r0, [r1]
-	lsls r0, 3
-	adds r0, 0x4
-	strh r0, [r2, 0x22]
-_080FBC6C:
-	ldr r4, _080FBC98 @ =gUnknown_020388CC
-	ldr r0, [r4]
-	ldr r1, [r0, 0x1C]
-	movs r0, 0x2
-	strh r0, [r1, 0x30]
-	adds r0, r6, 0
-	bl IndexOfSpritePaletteTag
-	ldr r1, [r4]
-	ldr r2, [r1, 0x1C]
-	lsls r0, 24
-	lsrs r0, 20
-	ldr r4, _080FBC9C @ =0x00000101
-	adds r0, r4
-	strh r0, [r2, 0x32]
-	ldr r1, [r1, 0x1C]
-	movs r0, 0x1
-	strh r0, [r1, 0x34]
-_080FBC90:
-	add sp, 0x28
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080FBC98: .4byte gUnknown_020388CC
-_080FBC9C: .4byte 0x00000101
-	thumb_func_end sub_80FBB3C
-
 	thumb_func_start sub_80FBCA0
 sub_80FBCA0: @ 80FBCA0
 	push {r4,lr}
diff --git a/data/region_map.s b/data/region_map.s
index 78b467212..1ffcc22fb 100644
--- a/data/region_map.s
+++ b/data/region_map.s
@@ -3,57 +3,6 @@
 
 	.section .rodata
 
-@ 83E6FF4
-@	.include "data/region_map_locations.inc"
-
-gUnknown_083E7684:: @ 83E7684
-	.2byte 50, 39
-	.2byte 51, 41
-	.2byte 52, 42
-	.2byte 53, 43
-	.2byte 54, 14
-	.2byte 69, 43
-	.2byte 66, 12
-	.2byte 79, 49
-	.2byte 59, 19
-	.2byte 76, 27
-	.2byte 65, 37
-	.2byte 85, 46
-	.2byte 88, 88
-
-	.align 2
-gOamData_83E76B8:: @ 83E76B8
-	.2byte 0x0000
-	.2byte 0x4000
-	.2byte 0x0400
-
-	.align 2
-gSpriteAnim_83E76C0:: @ 83E76C0
-	obj_image_anim_frame 0, 20
-	obj_image_anim_frame 4, 20
-	obj_image_anim_jump 0
-
-	.align 2
-gSpriteAnim_83E76CC:: @ 83E76CC
-	obj_image_anim_frame 0, 10
-	obj_image_anim_frame 16, 10
-	obj_image_anim_frame 32, 10
-	obj_image_anim_frame 16, 10
-	obj_image_anim_jump 0
-
-	.align 2
-gSpriteAnimTable_83E76E0:: @ 83E76E0
-	.4byte gSpriteAnim_83E76C0
-	.4byte gSpriteAnim_83E76CC
-
-	.align 2
-gUnknown_083E76E8:: @ 83E76E8
-	obj_pal gPokenavCursor_Pal, 0x0000
-
-	.align 2
-gSpriteTemplate_83E76F0:: @ 83E76F0
-	spr_template 0, 0, gOamData_83E76B8, gSpriteAnimTable_83E76E0, NULL, gDummySpriteAffineAnimTable, sub_80FBAF0
-
 	.align 2
 gOamData_083E7708:: @ 83E7708
 	.2byte 0x0000
diff --git a/src/region_map.c b/src/region_map.c
index 07c88ccd3..9e95c40d0 100644
--- a/src/region_map.c
+++ b/src/region_map.c
@@ -1,4 +1,6 @@
 #include "global.h"
+#include "event_data.h"
+#include "field_specials.h"
 #include "main.h"
 #include "palette.h"
 #include "rom4.h"
@@ -10,7 +12,7 @@ struct UnknownStruct1
     u8 filler0[0x14];
     u16 unk14;
     u8 unk16;
-    u8 filler17[1];
+    u8 unk17;
     u8 (*unk18)(void);
     struct Sprite *unk1C;
     struct Sprite *unk20;
@@ -54,7 +56,7 @@ struct UnknownStruct1
     u8 unk7F;
     u8 filler80[0x100];
     u8 unk180[0x100];
-    u8 unk280[0x100];
+    u8 unk280[0x100];  // possibly 0x600
 };
 
 extern struct UnknownStruct1 *gUnknown_020388CC;
@@ -194,6 +196,23 @@ const struct RegionMapLocation gRegionMapLocations[] =
     { 0,  0, 1, 1, gMapName_None},
 };
 
+const u16 gUnknown_083E7684[][2] =
+{
+    {50, 39},
+    {51, 41},
+    {52, 42},
+    {53, 43},
+    {54, 14},
+    {69, 43},
+    {66, 12},
+    {79, 49},
+    {59, 19},
+    {76, 27},
+    {65, 37},
+    {85, 46},
+    {88, 88},
+};
+
 void sub_80FA904(struct UnknownStruct1 *, u8);
 bool8 sub_80FA940(void);
 u8 sub_80FAB78(void);
@@ -206,10 +225,11 @@ void sub_80FB260(void);
 u16 GetRegionMapSectionAt(u16, u16);
 void sub_80FB32C(void);
 void sub_80FB600(void);
-u16 sub_80FB758();
+u16 sub_80FB758(u16);
 u16 sub_80FB9C0(u16);
-void sub_80FBA18();
-void sub_80FBB3C();
+void sub_80FBA18(void);
+u8 sub_80FBAA0(u16);
+void sub_80FBB3C(u16, u16);
 void sub_80FBCA0(void);
 void sub_80FBDF8(void);
 void sub_80FBE24(void);
@@ -549,20 +569,20 @@ void sub_80FB170(s16 a, s16 b, s16 c, s16 d, u16 e, u16 f, u8 g)
     s32 var2;
     s32 var3;
     s32 var4;
-    
+
     gUnknown_020388CC->unk2C = e * gSineTable[g + 64] >> 8;
     gUnknown_020388CC->unk30 = e * -gSineTable[g] >> 8;
     gUnknown_020388CC->unk34 = f * gSineTable[g] >> 8;
     gUnknown_020388CC->unk38 = f * gSineTable[g + 64] >> 8;
-    
+
     var1 = (a << 8) + (c << 8);
     var2 = d * gUnknown_020388CC->unk34 + gUnknown_020388CC->unk2C * c;
     gUnknown_020388CC->unk24 = var1 - var2;
-    
+
     var3 = (b << 8) + (d << 8);
     var4 = gUnknown_020388CC->unk38 * d + gUnknown_020388CC->unk30 * c;
     gUnknown_020388CC->unk28 = var3 - var4;
-    
+
     gUnknown_020388CC->unk7D = 1;
 }
 
@@ -600,7 +620,7 @@ void sub_80FB2A4(s16 a, s16 b)
 
 u16 GetRegionMapSectionAt(u16 x, u16 y)
 {
-    
+
     if (y < 2 || y > 16 || x < 1 || x > 0x1C)
         return 0x58;
     y -= 2;
@@ -617,13 +637,13 @@ void sub_80FB32C(void)
     u16 y;
     u16 r1;
     u16 r9;
-    
+
     if (gSaveBlock1.location.mapGroup == 0x19 && (gSaveBlock1.location.mapNum == 0x29 || gSaveBlock1.location.mapNum == 0x2A || gSaveBlock1.location.mapNum == 0x2B))
     {
         sub_80FB600();
         return;
     }
-    
+
     switch (get_map_light_level_by_bank_and_number(gSaveBlock1.location.mapGroup, gSaveBlock1.location.mapNum) - 1)
     {
     default:
@@ -663,7 +683,7 @@ void sub_80FB32C(void)
     case 7:
         {
             struct WarpData *r4;
-            
+
             gUnknown_020388CC->unk14 = gMapHeader.name;
             if (gUnknown_020388CC->unk14 != 0x57)
             {
@@ -684,19 +704,23 @@ void sub_80FB32C(void)
         }
         break;
     }
+
     r9 = x;
+
     r1 = mapWidth / gRegionMapLocations[gUnknown_020388CC->unk14].width;
     if (r1 == 0)
         r1 = 1;
     x /= r1;
     if (x >= gRegionMapLocations[gUnknown_020388CC->unk14].width)
         x = gRegionMapLocations[gUnknown_020388CC->unk14].width - 1;
+
     r1 = mapHeight / gRegionMapLocations[gUnknown_020388CC->unk14].height;
     if (r1 == 0)
         r1 = 1;
     y /= r1;
     if (y >= gRegionMapLocations[gUnknown_020388CC->unk14].height)
         y = gRegionMapLocations[gUnknown_020388CC->unk14].height - 1;
+
     switch (gUnknown_020388CC->unk14)
     {
     case 0x1D:
@@ -729,3 +753,309 @@ void sub_80FB32C(void)
     gUnknown_020388CC->unk54 = gRegionMapLocations[gUnknown_020388CC->unk14].x + x + 1;
     gUnknown_020388CC->unk56 = gRegionMapLocations[gUnknown_020388CC->unk14].y + y + 2;
 }
+
+void sub_80FB600(void)
+{
+    u16 y = 0;
+    u16 x = 0;
+    u8 mapGroup;
+    u8 mapNum;
+    s16 sp2;
+    s16 sp4;
+
+    switch (GetSSTidalLocation(&mapGroup, &mapNum, &sp2, &sp4))
+    {
+    case 1:
+        gUnknown_020388CC->unk14 = 8;
+        break;
+    case 2:
+        gUnknown_020388CC->unk14 = 12;
+        break;
+    case 3:
+        gUnknown_020388CC->unk14 = 0x27;
+        break;
+    case 4:
+        gUnknown_020388CC->unk14 = 0x2E;
+        break;
+    default:
+    case 0:
+        {
+            struct MapHeader *mapHeader = get_mapheader_by_bank_and_number(mapGroup, mapNum);
+            u16 r1;
+
+            gUnknown_020388CC->unk14 = mapHeader->name;
+            r1 = mapHeader->mapData->width / gRegionMapLocations[gUnknown_020388CC->unk14].width;
+            if (r1 == 0)
+                r1 = 1;
+            x = sp2 / r1;
+            if (x >= gRegionMapLocations[gUnknown_020388CC->unk14].width)
+                x = gRegionMapLocations[gUnknown_020388CC->unk14].width - 1;
+
+            r1 = mapHeader->mapData->height / gRegionMapLocations[gUnknown_020388CC->unk14].height;
+            if (r1 == 0)
+                r1 = 1;
+            y = sp4 / r1;
+            if (y >= gRegionMapLocations[gUnknown_020388CC->unk14].height)
+                y = gRegionMapLocations[gUnknown_020388CC->unk14].height - 1;
+        }
+        break;
+    }
+    gUnknown_020388CC->unk7F = 0;
+    gUnknown_020388CC->unk54 = gRegionMapLocations[gUnknown_020388CC->unk14].x + x + 1;
+    gUnknown_020388CC->unk56 = gRegionMapLocations[gUnknown_020388CC->unk14].y + y + 2;
+}
+
+u16 sub_80FB758(u16 a)
+{
+    switch (a)
+    {
+    case 88:
+        return 0;
+    case 0:
+        return FlagGet(0x80F) ? 2 : 3;
+    case 1:
+        return FlagGet(0x810) ? 2 : 3;
+    case 2:
+        return FlagGet(0x811) ? 2 : 3;
+    case 3:
+        return FlagGet(0x812) ? 2 : 3;
+    case 4:
+        return FlagGet(0x813) ? 2 : 3;
+    case 5:
+        return FlagGet(0x814) ? 2 : 3;
+    case 6:
+        return FlagGet(0x815) ? 2 : 3;
+    case 7:
+        return FlagGet(0x816) ? 2 : 3;
+    case 8:
+        return FlagGet(0x817) ? 2 : 3;
+    case 9:
+        return FlagGet(0x818) ? 2 : 3;
+    case 10:
+        return FlagGet(0x819) ? 2 : 3;
+    case 11:
+        return FlagGet(0x81A) ? 2 : 3;
+    case 12:
+        return FlagGet(0x81B) ? 2 : 3;
+    case 13:
+        return FlagGet(0x81C) ? 2 : 3;
+    case 14:
+        return FlagGet(0x81D) ? 2 : 3;
+    case 15:
+        return FlagGet(0x81E) ? 2 : 3;
+    case 58:
+        return FlagGet(0x848) ? 4 : 0;
+    case 73:
+        return FlagGet(0x849) ? 1 : 0;
+    default:
+        return 1;
+    }
+}
+
+u16 GetRegionMapSectionAt_(u16 x, u16 y)
+{
+    return GetRegionMapSectionAt(x, y);
+}
+
+u16 sub_80FB9C0(u16 a)
+{
+    u16 i = 0;
+
+    while (gUnknown_083E7684[i][0] != 88)
+    {
+        if (gUnknown_083E7684[i][0] == a)
+            return gUnknown_083E7684[i][1];
+        i++;
+    }
+    return a;
+}
+
+u16 sub_80FBA04(u16 a)
+{
+    return sub_80FB9C0(a);
+}
+
+void sub_80FBA18(void)
+{
+    u16 x;
+    u16 y;
+    u16 i;
+
+    if (gUnknown_020388CC->unk14 == 88)
+    {
+        gUnknown_020388CC->unk17 = 0;
+        return;
+    }
+
+    if (gUnknown_020388CC->unk78 == 0)
+    {
+        x = gUnknown_020388CC->unk54;
+        y = gUnknown_020388CC->unk56;
+    }
+    else
+    {
+        x = gUnknown_020388CC->unk64;
+        y = gUnknown_020388CC->unk66;
+    }
+
+    i = 0;
+    while (1)
+    {
+        if (x <= 1)
+        {
+            if (sub_80FBAA0(y) != 0)
+            {
+                y--;
+                x = 0x1D;
+            }
+            else
+            {
+                break;
+            }
+        }
+        else
+        {
+            x--;
+            if (GetRegionMapSectionAt(x, y) == gUnknown_020388CC->unk14)
+                i++;
+        }
+    }
+
+    gUnknown_020388CC->unk17 = i;
+}
+
+u8 sub_80FBAA0(u16 a)
+{
+    u16 x;
+    u16 y;
+
+    y = a - 1;
+    if (y == 0xFFFF)
+        return 0;
+
+    x = 1;
+    while (x < 0x1D)
+    {
+        if (GetRegionMapSectionAt(x, y) == gUnknown_020388CC->unk14)
+            return 1;
+        x++;
+    }
+    return 0;
+}
+
+
+
+const struct OamData gOamData_83E76B8 =
+{
+    .y = 0,
+    .affineMode = 0,
+    .objMode = 0,
+    .mosaic = 0,
+    .bpp = 0,
+    .shape = 0,
+    .x = 0,
+    .matrixNum = 0,
+    .size = 1,
+    .tileNum = 0,
+    .priority = 1,
+    .paletteNum = 0,
+    .affineParam = 0,
+};
+
+const union AnimCmd gSpriteAnim_83E76C0[] =
+{
+    ANIMCMD_FRAME(0, 20),
+    ANIMCMD_FRAME(4, 20),
+    ANIMCMD_JUMP(0),
+};
+
+const union AnimCmd gSpriteAnim_83E76CC[] =
+{
+    ANIMCMD_FRAME(0, 10),
+    ANIMCMD_FRAME(16, 10),
+    ANIMCMD_FRAME(32, 10),
+    ANIMCMD_FRAME(16, 10),
+    ANIMCMD_JUMP(0),
+};
+
+const union AnimCmd *const gSpriteAnimTable_83E76E0[] =
+{
+    gSpriteAnim_83E76C0,
+    gSpriteAnim_83E76CC,
+};
+
+void sub_80FBAF0(struct Sprite *sprite)
+{
+    if (gUnknown_020388CC->unk7A != 0)
+    {
+        sprite->pos1.x += gUnknown_020388CC->unk7B * 2;
+        sprite->pos1.y += gUnknown_020388CC->unk7C * 2;
+        gUnknown_020388CC->unk7A--;
+    }
+}
+
+void nullsub_66(struct Sprite *sprite)
+{
+}
+
+void sub_80FBB3C(u16 tileTag, u16 paletteTag)
+{
+    u8 spriteId;
+    struct SpriteSheet spriteSheet;
+    struct SpritePalette spritePalette =
+    {
+        .data = gPokenavCursor_Pal,
+    };
+    struct SpriteTemplate spriteTemplate =
+    {
+        .oam = &gOamData_83E76B8,
+        .anims = gSpriteAnimTable_83E76E0,
+        .images = NULL,
+        .affineAnims = gDummySpriteAffineAnimTable,
+        .callback = sub_80FBAF0,
+    };
+
+    spriteSheet.tag = tileTag;
+    spriteTemplate.tileTag = tileTag;
+    gUnknown_020388CC->unk58 = tileTag;
+    
+    spritePalette.tag = paletteTag;
+    spriteTemplate.paletteTag = paletteTag;
+    gUnknown_020388CC->unk5A = paletteTag;
+    
+    if (gUnknown_020388CC->unk78 == 0)
+    {
+        spriteSheet.data = gUnknown_020388CC->unk180;
+        spriteSheet.size = 0x100;
+        spriteTemplate.callback = sub_80FBAF0;
+    }
+    else
+    {
+        spriteSheet.data = gUnknown_020388CC->unk280;
+        spriteSheet.size = 0x600;
+        spriteTemplate.callback = nullsub_66;
+    }
+    LoadSpriteSheet(&spriteSheet);
+    LoadSpritePalette(&spritePalette);
+    spriteId = CreateSprite(&spriteTemplate, 0x38, 0x48, 0);
+    if (spriteId != 64)
+    {
+        gUnknown_020388CC->unk1C = &gSprites[spriteId];
+        if (gUnknown_020388CC->unk78 == 1)
+        {
+            gUnknown_020388CC->unk1C->oam.size = 2;
+            gUnknown_020388CC->unk1C->pos1.x -= 8;
+            gUnknown_020388CC->unk1C->pos1.y -= 8;
+            StartSpriteAnim(gUnknown_020388CC->unk1C, 1);
+        }
+        else
+        {
+            gUnknown_020388CC->unk1C->oam.size = 1;
+            gUnknown_020388CC->unk1C->pos1.x = gUnknown_020388CC->unk54 * 8 + 4;
+            gUnknown_020388CC->unk1C->pos1.y = gUnknown_020388CC->unk56 * 8 + 4;
+        }
+        gUnknown_020388CC->unk1C->data1 = 2;
+        gUnknown_020388CC->unk1C->data2 = IndexOfSpritePaletteTag(paletteTag) * 16 + 0x0101;
+        gUnknown_020388CC->unk1C->data3 = 1;
+    }
+}