sub_80D80E0 ASM

    thumb_func_start sub_80D80E0
sub_80D80E0: @ 80D80E0
    push {r4,r5,lr}
    sub sp, 0x10
    lsls r0, 24
    lsrs r5, r0, 24
    ldr r1, _080D81A8 @ =REG_BLDCNT
    ldr r2, _080D81AC @ =0x00003f42
    adds r0, r2, 0
    strh r0, [r1]
    adds r1, 0x2
    movs r2, 0x80
    lsls r2, 5
    adds r0, r2, 0
    strh r0, [r1]
    ldr r4, _080D81B0 @ =REG_BG1CNT
    ldrb r1, [r4]
    movs r0, 0x4
    negs r0, r0
    ands r0, r1
    movs r1, 0x1
    orrs r0, r1
    strb r0, [r4]
    ldrb r1, [r4, 0x1]
    movs r0, 0x3F
    ands r0, r1
    strb r0, [r4, 0x1]
    bl IsContest
    lsls r0, 24
    cmp r0, 0
    bne _080D812A
    ldrb r0, [r4]
    movs r1, 0xD
    negs r1, r1
    ands r1, r0
    movs r0, 0x4
    orrs r1, r0
    strb r1, [r4]
_080D812A:
    ldr r0, _080D81B4 @ =gBattle_BG1_X
    movs r1, 0
    strh r1, [r0]
    ldr r0, _080D81B8 @ =gBattle_BG1_Y
    strh r1, [r0]
    ldr r0, _080D81BC @ =REG_BG1HOFS
    strh r1, [r0]
    adds r0, 0x2
    strh r1, [r0]
    mov r0, sp
    bl sub_8078914
    ldr r1, [sp, 0x4]
    movs r0, 0
    str r0, [sp, 0xC]
    ldr r0, _080D81C0 @ =0x040000d4
    add r2, sp, 0xC
    str r2, [r0]
    str r1, [r0, 0x4]
    ldr r2, _080D81C4 @ =0x85000400
    str r2, [r0, 0x8]
    ldr r2, [r0, 0x8]
    ldr r2, _080D81C8 @ =gWeatherFog1Tiles
    ldr r3, [sp]
    str r2, [r0]
    str r3, [r0, 0x4]
    ldr r2, _080D81CC @ =0x80000400
    str r2, [r0, 0x8]
    ldr r0, [r0, 0x8]
    ldr r0, _080D81D0 @ =gBattleAnimFogTilemap
    bl LZDecompressVram
    ldr r0, _080D81D4 @ =gUnknown_083970E8
    mov r1, sp
    ldrb r1, [r1, 0x8]
    lsls r1, 4
    movs r2, 0x20
    bl LoadPalette
    bl IsContest
    lsls r0, 24
    cmp r0, 0
    beq _080D8190
    mov r0, sp
    ldrb r0, [r0, 0x8]
    ldr r1, [sp, 0x4]
    movs r2, 0
    movs r3, 0
    bl sub_80763FC
_080D8190:
    ldr r0, _080D81D8 @ =gTasks
    lsls r1, r5, 2
    adds r1, r5
    lsls r1, 3
    adds r1, r0
    ldr r0, _080D81DC @ =sub_80D81E0
    str r0, [r1]
    add sp, 0x10
    pop {r4,r5}
    pop {r0}
    bx r0
    .align 2, 0
_080D81A8: .4byte REG_BLDCNT
_080D81AC: .4byte 0x00003f42
_080D81B0: .4byte REG_BG1CNT
_080D81B4: .4byte gBattle_BG1_X
_080D81B8: .4byte gBattle_BG1_Y
_080D81BC: .4byte REG_BG1HOFS
_080D81C0: .4byte 0x040000d4
_080D81C4: .4byte 0x85000400
_080D81C8: .4byte gWeatherFog1Tiles
_080D81CC: .4byte 0x80000400
_080D81D0: .4byte gBattleAnimFogTilemap
_080D81D4: .4byte gUnknown_083970E8
_080D81D8: .4byte gTasks
_080D81DC: .4byte sub_80D81E0
    thumb_func_end sub_80D80E0