.include "asm/macros.inc"
    .include "global.inc"

	.extern UNK_020FF3EC
	.extern gUnk021C4918
	.extern UNK_020FF3FC
	.extern UNK_020FF418
	.extern UNK_020FF3E4

	.text

	thumb_func_start FUN_02089D90
FUN_02089D90: ; 0x02089D90
	push {r3-r6, lr}
	sub sp, #0x1c
	add r4, r0, #0x0
	mov r0, #0x0
	add r1, r0, #0x0
	bl FUN_0200E3A0
	mov r0, #0x1
	mov r1, #0x0
	bl FUN_0200E3A0
	mov r0, #0x0
	add r1, r0, #0x0
	bl FUN_02015F10
	mov r0, #0x0
	add r1, r0, #0x0
	bl FUN_02015F34
	bl FUN_0201E6D8
	bl FUN_0201E740
	mov r2, #0x1
	lsl r2, r2, #0x1a
	ldr r1, [r2, #0x0]
	ldr r0, _02089EF4 ; =0xFFFFE0FF
	and r1, r0
	str r1, [r2, #0x0]
	ldr r2, _02089EF8 ; =0x04001000
	ldr r1, [r2, #0x0]
	and r0, r1
	str r0, [r2, #0x0]
	mov r0, #0x4
	mov r1, #0x8
	bl FUN_0201669C
	ldr r0, _02089EFC ; =gUnk021C4918
	mov r1, #0x0
	strb r1, [r0, #0x5]
	bl FUN_0201E7A0
	ldr r3, _02089F00 ; =0x04000050
	mov r0, #0x0
	strh r0, [r3, #0x0]
	ldr r2, _02089F04 ; =0x04001050
	sub r3, #0x50
	strh r0, [r2, #0x0]
	ldr r1, [r3, #0x0]
	ldr r0, _02089F08 ; =0xFFFF1FFF
	sub r2, #0x50
	and r1, r0
	str r1, [r3, #0x0]
	ldr r1, [r2, #0x0]
	and r0, r1
	str r0, [r2, #0x0]
	ldr r0, _02089F0C ; =UNK_020FF418
	bl FUN_0201E66C
	add r0, r4, #0x0
	bl FUN_02016B94
	add r5, r0, #0x0
	ldr r0, _02089F10 ; =UNK_020FF3EC
	bl FUN_02016BBC
	mov r1, #0x0
	ldr r2, _02089F14 ; =UNK_020FF3FC
	add r0, r5, #0x0
	add r3, r1, #0x0
	bl FUN_02016C18
	add r0, r5, #0x0
	mov r1, #0x0
	bl FUN_02018744
	mov r1, #0x0
	str r1, [sp, #0x0]
	ldr r2, _02089F18 ; =0x000001F7
	add r0, r5, #0x0
	mov r3, #0x2
	str r4, [sp, #0x4]
	bl FUN_0200CB00
	mov r0, #0x0
	mov r1, #0x20
	add r2, r4, #0x0
	bl FUN_02002ED0
	mov r0, #0x0
	mov r1, #0x20
	add r2, r0, #0x0
	add r3, r4, #0x0
	bl FUN_02017F18
	ldr r1, _02089F1C ; =0x00006C21
	mov r0, #0x0
	bl FUN_02017FE4
	ldr r1, _02089F1C ; =0x00006C21
	mov r0, #0x4
	bl FUN_02017FE4
	mov r0, #0x1
	mov r1, #0x1a
	mov r2, #0x5
	add r3, r4, #0x0
	bl FUN_0200A86C
	add r6, r0, #0x0
	mov r0, #0x6
	lsl r0, r0, #0x6
	add r1, r4, #0x0
	bl FUN_020219F4
	add r4, r0, #0x0
	bl FUN_0201BD5C
	ldr r2, _02089F20 ; =UNK_020FF3E4
	add r0, r5, #0x0
	add r1, sp, #0xc
	bl FUN_02019150
	mov r0, #0xd0
	str r0, [sp, #0x0]
	mov r0, #0x90
	mov r2, #0x0
	str r0, [sp, #0x4]
	add r0, sp, #0xc
	mov r1, #0xf
	add r3, r2, #0x0
	bl FUN_020196F4
	ldr r2, _02089F18 ; =0x000001F7
	add r0, sp, #0xc
	mov r1, #0x0
	mov r3, #0x2
	bl FUN_0200CCA4
	add r0, r6, #0x0
	mov r1, #0x0
	add r2, r4, #0x0
	bl FUN_0200A8E0
	mov r1, #0x0
	str r1, [sp, #0x0]
	str r1, [sp, #0x4]
	add r0, sp, #0xc
	add r2, r4, #0x0
	add r3, r1, #0x0
	str r1, [sp, #0x8]
	bl FUN_0201BD84
	add r0, r4, #0x0
	bl FUN_02021A20
	bl FUN_0201E788
	mov r0, #0x0
	bl FUN_0200E394
	mov r0, #0x1
	bl FUN_0200E394
	mov r0, #0x0
	mov r1, #0x3f
	mov r2, #0x3
	bl FUN_0200A274
	mov r4, #0x1
_02089EE4:
	bl FUN_02000FE8
	add r0, r4, #0x0
	add r1, r4, #0x0
	bl OS_WaitIrq
	b _02089EE4
	nop
_02089EF4: .word 0xFFFFE0FF
_02089EF8: .word 0x04001000
_02089EFC: .word gUnk021C4918
_02089F00: .word 0x04000050
_02089F04: .word 0x04001050
_02089F08: .word 0xFFFF1FFF
_02089F0C: .word UNK_020FF418
_02089F10: .word UNK_020FF3EC
_02089F14: .word UNK_020FF3FC
_02089F18: .word 0x000001F7
_02089F1C: .word 0x00006C21
_02089F20: .word UNK_020FF3E4