Merge pull request #201 from golemgalvanize/decompile_item_menu

Decompile item menu

2 files changed, 2449 insertions, 1 deletions

diff --git a/src/item_menu.c b/src/item_menu.c
new file mode 100755
index 000000000..b14ae403e
--- /dev/null
+++ b/src/item_menu.c
@@ -0,0 +1,2448 @@
+#include "global.h"
+#include "battle.h"
+#include "battle_controllers.h"
+#include "battle_frontier_2.h"
+#include "berry_tag_screen.h"
+#include "bg.h"
+#include "constants/items.h"
+#include "constants/songs.h"
+#include "decompress.h"
+#include "event_data.h"
+#include "field_map_obj_helpers.h"
+#include "field_player_avatar.h"
+#include "field_specials.h"
+#include "graphics.h"
+#include "gpu_regs.h"
+#include "international_string_util.h"
+#include "item.h"
+#include "item_menu_icons.h"
+#include "item_use.h"
+#include "lilycove_lady.h"
+#include "list_menu.h"
+#include "link.h"
+#include "mail.h"
+#include "main.h"
+#include "malloc.h"
+#include "map_name_popup.h"
+#include "menu.h"
+#include "menu_indicators.h"
+#include "money.h"
+#include "overworld.h"
+#include "palette.h"
+#include "party_menu.h"
+#include "player_pc.h"
+#include "pokemon.h"
+#include "pokemon_summary_screen.h"
+#include "rom_818CFC8.h"
+#include "scanline_effect.h"
+#include "script.h"
+#include "shop.h"
+#include "sound.h"
+#include "sprite.h"
+#include "string.h"
+#include "strings.h"
+#include "string_util.h"
+#include "task.h"
+#include "text_window.h"
+#include "menu_helpers.h"
+#include "window.h"
+
+void GoToBagMenu(u8 bagMenuType, u8 pocketId, void ( *postExitMenuMainCallback2)());
+void CB2_Bag(void);
+bool8 setup_bag_menu(void);
+void bag_menu_init_bgs(void);
+bool8 load_bag_menu_graphics(void);
+void setup_bag_menu_textboxes(void);
+void allocate_bag_item_list_buffers(void);
+void load_bag_item_list_buffers(u8);
+void bag_menu_print_pocket_names(u8*, u8*);
+void bag_menu_copy_pocket_name_to_window(u32);
+void bag_menu_draw_pocket_indicator_square(u8, u8);
+void AddBagVisualObject(u8);
+void bag_menu_add_pocket_scroll_arrow_indicators_maybe(void);
+void bag_menu_add_list_scroll_arrow_indicators_maybe(void);
+void bag_menu_prepare_tmhm_move_window(void);
+bool8 IsWallysBag(void);
+void Task_WallyTutorialBagMenu(u8);
+void Task_BagMenu(u8);
+void get_name(s8*, u16);
+u16 ItemIdToBattleMoveId(u16);
+void ShakeBagVisual(void);
+u16 BagGetItemIdByPocketPosition(u8, u16);
+void AddBagItemIconObject(u16, u8);
+void bag_menu_print_description_box_text(int);
+void bag_menu_print_cursor(u8, u8);
+void bag_menu_print(u8, u8, const u8*, u8, u8, u8, u8, u8, u8);
+bool8 itemid_is_unique(u16);
+u16 BagGetQuantityByPocketPosition(u8, u16);
+void sub_81AB89C(void);
+void task_close_bag_menu_2(u8);
+u8 AddItemMessageWindow(u8);
+void bag_menu_RemoveBagItem_message_window(u8);
+void set_callback3_to_bag(u8);
+void sub_81ABC54(u8, s16);
+u8 bag_menu_add_window(u8);
+u8 GetSwitchBagPocketDirection(void);
+void SwitchBagPocket(u8, s16, u16);
+bool8 sub_81AC2C0(void);
+void bag_menu_swap_items(u8);
+void SetBagVisualPocketId(u8, u8);
+void RemoveBagObject(u8);
+void AddSwitchPocketRotatingBallObject(s16);
+void sub_81AC10C(u8);
+void sub_81AC3C0(u8);
+void sub_81AC498(u8);
+void sub_81AC590(u8);
+void PrintTMHMMoveData(u16);
+void sub_81ACAF8(u8);
+void sub_81ACB54(u8, u8, u8);
+void Task_HandleInBattleItemMenuInput(u8);
+void Task_HandleOutOfBattleItemMenuInput(u8);
+bool8 sub_81ACDFC(s8);
+void bag_menu_remove_window(u8);
+void bag_menu_print_there_is_no_pokemon(u8);
+void Task_ChooseHowManyToToss(u8);
+void BagMenuConfirmToss(u8);
+void bag_menu_yes_no(u8, u8, const struct YesNoFuncTable*);
+void Task_ActuallyToss(u8);
+void ItemMenu_Cancel(u8);
+void sub_81AD350(u8);
+void bag_menu_print_cant_be_held_msg(u8);
+void bag_menu_AddMoney_window(void);
+void sub_81AD680(u8);
+void sub_81AD730(u8);
+void sub_81AD6E4(u8);
+void bag_menu_remove_money_window(void);
+void bag_menu_RemoveBagItem_message_window(u8);
+void sub_81AD794(u8);
+void sub_81AD8C8(u8);
+void sub_81AD9C0(u8);
+void sub_81ADB14(u8);
+void sub_81ADA7C(u8);
+void sub_81ADC0C(u8);
+void bag_menu_leave_maybe_3(void);
+void bag_menu_leave_maybe_2(void);
+void bag_menu_leave_maybe(void);
+void sub_81ABA6C(void);
+void sub_81ABAC4(void);
+void sub_81ABAE0(void);
+u8 sub_81AB1F0(u8);
+void sub_81AC23C(u8);
+void bag_menu_change_item_callback(u32 a, bool8 b, struct ListMenu*);
+void sub_81AB520(u8 rboxId, int item_index_in_pocket, u8 a);
+void ItemMenu_UseOutOfBattle(u8 taskId);
+void ItemMenu_Toss(u8 taskId);
+void ItemMenu_Register(u8 taskId);
+void ItemMenu_Give(u8 taskId);
+void ItemMenu_Cancel(u8 taskId);
+void ItemMenu_UseInBattle(u8 taskId);
+void ItemMenu_CheckTag(u8 taskId);
+void unknown_ItemMenu_Confirm(u8 taskId);
+void unknown_ItemMenu_Show(u8 taskId);
+void unknown_ItemMenu_Give2(u8 taskId);
+void unknown_ItemMenu_Confirm2(u8 taskId);
+void unknown_item_menu_type(u8 taskId);
+void item_menu_type_2(u8 taskId);
+void display_sell_item_ask_str(u8 taskId);
+void unknown_ItemMenu_Confirm(u8 taskId);
+void display_deposit_item_ask_str(u8 taskId);
+void item_menu_type_b(u8 taskId);
+void BagMenuActuallyToss(u8 taskId);
+void BagMenuCancelToss(u8 taskId);
+void sub_81AD84C(u8 taskId);
+void sub_81AD6FC(u8 taskId);
+
+// .rodata
+
+const struct BgTemplate gUnknown_08613F90[3] = {
+    {0, 0, 31, 0, 0, 1, 0}, 
+    {1, 0, 30, 0, 0, 0, 0}, 
+    {2, 3, 29, 0, 0, 2, 0}
+};
+    
+const struct ListMenuTemplate gUnknown_08613F9C = {
+    NULL, bag_menu_change_item_callback, sub_81AB520, 0, 0, 0, 0, 8, 0, 1, 1, 0, 3, 0, 0, 0, 7, 0
+};
+
+const struct MenuAction gUnknown_08613FB4[] = {
+    {gMenuText_Use, ItemMenu_UseOutOfBattle}, 
+    {gMenuText_Toss, ItemMenu_Toss}, 
+    {gMenuText_Register, ItemMenu_Register}, 
+    {gMenuText_Give, ItemMenu_Give},
+    {gText_Cancel2, ItemMenu_Cancel},
+    {gMenuText_Use, ItemMenu_UseInBattle},
+    {gMenuText_Check, ItemMenu_UseOutOfBattle},
+    {gMenuText_Walk, ItemMenu_UseOutOfBattle},
+    {gMenuText_Deselect, ItemMenu_Register},
+    {gMenuText_CheckTag, ItemMenu_CheckTag},
+    {gMenuText_Confirm, unknown_ItemMenu_Confirm},
+    {gMenuText_Show, unknown_ItemMenu_Show},
+    {gMenuText_Give2, unknown_ItemMenu_Give2},
+    {gMenuText_Confirm, unknown_ItemMenu_Confirm2},
+    {gText_EmptyString2, NULL}
+};
+
+const u8 gUnknown_0861402C[] = {0, 3, 1, 4};
+const u8 gUnknown_08614030[] = {0, 2, 14, 4};
+const u8 gUnknown_08614034[] = {3, 14, 1, 4};
+const u8 gUnknown_08614038[] = {0, 3, 14, 4};
+const u8 gUnknown_0861403C[] = {9, 14, 0, 3, 1, 4};
+const u8 gUnknown_08614042[] = {5, 4};
+const u8 gUnknown_08614044[] = {3, 4};
+const u8 gUnknown_08614046 = 4;
+const u8 gUnknown_08614047[] = {10, 9, 14, 4};
+const u8 gUnknown_0861404B[] = {11, 4};
+const u8 gUnknown_0861404D[] = {12, 4};
+const u8 gUnknown_0861404F[] = {13, 4};
+
+const TaskFunc gUnknown_08614054[] = {
+    unknown_item_menu_type,
+    unknown_item_menu_type,
+    item_menu_type_2,
+    display_sell_item_ask_str,
+    unknown_ItemMenu_Confirm,
+    unknown_item_menu_type,
+    display_deposit_item_ask_str,
+    unknown_item_menu_type,
+    unknown_item_menu_type,
+    unknown_item_menu_type,
+    NULL,
+    item_menu_type_b
+};
+
+const struct YesNoFuncTable gUnknown_08614084 = {BagMenuActuallyToss, BagMenuCancelToss};
+
+const struct YesNoFuncTable gUnknown_0861408C = {sub_81AD84C, sub_81AD6FC};
+
+const u16 gUnknown_08614094[] = {0x1C00, 0x110, 0x1064, -1, -1, 0x6F, 0x6F, 0};
+
+const u8 gUnknown_086140A4[] = INCBIN_U8("graphics/interface/select_button.4bpp");
+
+const u8 gUnknown_08614164[][3] = {
+    {0, 1, 3}, 
+    {0, 1, 4},
+    {0, 3, 6},
+    {2, 1, 3},
+    {0, 14, 10}
+};
+
+const struct WindowTemplate gUnknown_08614174[] = {
+    {0, 14, 2, 15, 16, 1, 0x27},
+    {0, 0, 13, 14, 6, 1, 0x117},
+    {0, 4, 1, 8, 2, 1, 0x1A1},
+    {0, 1, 13, 5, 6, 12, 0x16B},
+    {0, 7, 13, 4, 6, 12, 0x189},
+    {1, 2, 15, 27, 4, 15, 0x1B1},
+    {0xFF, 0, 0, 0, 0, 0, 0}
+};
+
+const struct WindowTemplate gUnknown_086141AC[] = {
+    {1, 22, 17, 7, 2, 15, 0x21D},
+    {1, 22, 15, 7, 4, 15, 0x21D},
+    {1, 15, 15, 14, 4, 15, 0x21D},
+    {1, 15, 13, 14, 6, 15, 0x21D},
+    {1, 2, 15, 27, 4, 15, 0x1B1},
+    {1, 24, 15, 5, 4, 15, 0x21D},
+    {1, 21, 9, 5, 4, 15, 0x21D},
+    {1, 24, 17, 5, 2, 15, 0x21D},
+    {1, 18, 11, 10, 2, 15, 0x245},
+    {1, 1, 1, 10, 2, 15, 0x231}
+};
+
+// .text
+
+struct BagStruct {
+    void (*bagCallback)(void); 
+    u8 location;
+    u8 pocket;
+    u8 unk6[2];
+    u16 cursorPosition[5];
+    u16 scrollPosition[5];
+};
+
+struct UnkBagStruct {
+    MainCallback unk0;
+    u8 unk4[0x800];
+    u8 unk804;
+    u8 unk805;
+    u8 unk806[10];
+    u8 unk810[7];
+    u8 unk817;
+    u8 unk818;
+    u8 unk819;
+    u8 unk81A;
+    u8 unk81B:4;
+    u8 unk81B_1:2;
+    u8 unk81B_3:1;
+    u8 unk81B_2:1;
+    u8 filler3[2];
+    u8 unk81E;
+    u8 unk81F;
+    const u8* unk820;
+    u8 unk824;
+    u8 unk825;
+    u8 filler[2];
+    u8 unk828;
+    u8 unk829[5];
+    u8 unk82E[6];
+    s16 unk834;
+    u8 filler4[0xE];
+    u8 unk844[32][32];
+    u8 filler2[4];
+};
+
+struct ListBuffer1 {
+    struct ListMenuItem subBuffers[65];
+};
+
+struct ListBuffer2 {
+    s8 name[65][24];
+};
+
+struct TempWallyStruct {
+    struct ItemSlot bagPocket_Items[30];
+    struct ItemSlot bagPocket_PokeBalls[16];
+    u16 cursorPosition[5];
+    u16 scrollPosition[5];
+    u8 filler[0x2];
+    u16 pocket;
+};
+
+EWRAM_DATA struct UnkBagStruct *gUnknown_0203CE54 = 0;
+EWRAM_DATA struct BagStruct gUnknown_0203CE58 = {0, 0, 0, {0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}};
+EWRAM_DATA struct ListBuffer1 *gUnknown_0203CE74 = 0;
+EWRAM_DATA struct ListBuffer2 *gUnknown_0203CE78 = 0;
+EWRAM_DATA u16 gSpecialVar_ItemId = 0;
+EWRAM_DATA struct TempWallyStruct *gUnknown_0203CE80 = 0;
+
+void (*gFieldCallback)(void);
+
+extern u8 *gPocketNamesStringsTable[];
+extern u8 gUnknown_08D9A88C[];
+extern struct CompressedSpriteSheet gUnknown_0857FB34;
+extern struct CompressedSpriteSheet gUnknown_0857FB3C;
+extern struct CompressedSpritePalette gUnknown_0857FB44;
+extern struct ListMenuTemplate gUnknown_08613F9C;
+extern u8 gMoveNames[][0xD];
+extern u8* gReturnToXStringsTable[];
+extern u32 gUnknown_0203CE5E[];
+extern u8 EventScript_2736B3[];
+extern const u16 gUnknown_0860F074[];
+extern struct BattleMove gBattleMoves[];
+
+void ResetBagScrollPositions(void)
+{
+    gUnknown_0203CE58.pocket = 0;
+    memset(gUnknown_0203CE58.cursorPosition, 0, 10);
+    memset(gUnknown_0203CE58.scrollPosition, 0, 10);
+}
+
+void CB2_BagMenuFromStartMenu(void)
+{
+    GoToBagMenu(0, 5, sub_8086194);
+}
+
+void sub_81AABB0(void)
+{
+    if (!InBattlePyramid())
+        GoToBagMenu(1, 5, SetCB2ToReshowScreenAfterMenu2);
+    else
+        sub_81C4F98(1, SetCB2ToReshowScreenAfterMenu2);
+}
+
+void CB2_ChooseBerry(void)
+{
+    GoToBagMenu(4, 3, sub_80861B0);
+}
+
+void sub_81AABF0(void(*callback)(void))
+{
+    GoToBagMenu(5, 3, callback);
+}
+
+void CB2_GoToSellMenu(void)
+{
+    GoToBagMenu(3, 5, CB2_ExitSellMenu);
+}
+
+void sub_81AAC14(void)
+{
+    GoToBagMenu(6, 5, sub_816B31C);
+}
+
+void sub_81AAC28(void)
+{
+    GoToBagMenu(9, 5, bag_menu_leave_maybe_3);
+    gSpecialVar_0x8005 = 0;
+    gSpecialVar_Result = 0;
+}
+
+void sub_81AAC50(void)
+{
+    GoToBagMenu(7, 5, bag_menu_leave_maybe_2);
+    gSpecialVar_Result = 0;
+}
+
+void sub_81AAC70(void)
+{
+    GoToBagMenu(8, 5, bag_menu_leave_maybe);
+    gSpecialVar_Result = 0;
+}
+
+void GoToBagMenu(u8 bagMenuType, u8 pocketId, void ( *postExitMenuMainCallback2)())
+{
+    u8 temp;
+    gUnknown_0203CE54 = AllocZeroed(sizeof(struct UnkBagStruct));
+    if (gUnknown_0203CE54 == 0)
+    {
+        SetMainCallback2(postExitMenuMainCallback2);
+    }
+    else
+    {
+        if (bagMenuType != 12)
+            gUnknown_0203CE58.location = bagMenuType;
+        if (postExitMenuMainCallback2)
+            gUnknown_0203CE58.bagCallback = postExitMenuMainCallback2;
+        if (pocketId <= 4)
+            gUnknown_0203CE58.pocket = pocketId;
+        temp = gUnknown_0203CE58.location - 4;
+        if (temp <= 1)
+            gUnknown_0203CE54->unk81B = 1;
+        gUnknown_0203CE54->unk0 = 0;
+        gUnknown_0203CE54->unk81A = 0xFF;
+        gUnknown_0203CE54->unk81E = -1;
+        gUnknown_0203CE54->unk81F = -1;
+        memset(&gUnknown_0203CE54->unk804, 0xFF, 12);
+        memset(gUnknown_0203CE54->unk810, 0xFF, 10);
+        SetMainCallback2(CB2_Bag);
+    }
+}
+
+void c2_bag_3(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    do_scheduled_bg_tilemap_copies_to_vram();
+    UpdatePaletteFade();
+}
+
+void vblank_cb_bag_menu(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void CB2_Bag(void)
+{
+    while(sub_81221EC() != TRUE && setup_bag_menu() != TRUE && sub_81221AC() != TRUE) {};
+}
+
+bool8 setup_bag_menu(void)
+{
+    u32 index;
+    u8 taskId;
+
+    switch (gMain.state)
+    {
+    case 0:
+        SetVBlankHBlankCallbacksToNull();
+        clear_scheduled_bg_copies_to_vram();
+        gMain.state++;
+        break;
+    case 1:
+        ScanlineEffect_Stop();
+        gMain.state++;
+        break;
+    case 2:
+        FreeAllSpritePalettes();
+        gMain.state++;
+        break;
+    case 3:
+        ResetPaletteFade();
+        gPaletteFade.bufferTransferDisabled = TRUE;
+        gMain.state++;
+        break;
+    case 4:
+        ResetSpriteData();
+        gMain.state++;
+        break;
+    case 5:
+        gMain.state++;
+        break;
+    case 6:
+        if (sub_81221AC() == FALSE)
+            ResetTasks();
+        gMain.state++;
+        break;
+    case 7:
+        bag_menu_init_bgs();
+        gUnknown_0203CE54->unk834 = 0;
+        gMain.state++;
+        break;
+    case 8:
+        if (!load_bag_menu_graphics())
+            break;
+        gMain.state++;
+        break;
+    case 9:
+        setup_bag_menu_textboxes();
+        gMain.state++;
+        break;
+    case 10:
+        sub_81ABA6C();
+        sub_81ABAC4();
+        sub_81ABAE0();
+        gMain.state++;
+        break;
+    case 11:
+        allocate_bag_item_list_buffers();
+        gMain.state++;
+        break;
+    case 12:
+        load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+        gMain.state++;
+        break;
+    case 13:
+        bag_menu_print_pocket_names(gPocketNamesStringsTable[gUnknown_0203CE58.pocket], 0);
+        bag_menu_copy_pocket_name_to_window(0);
+        bag_menu_draw_pocket_indicator_square(gUnknown_0203CE58.pocket, 1);
+        gMain.state++;
+        break;
+    case 14:
+        taskId = sub_81AB1F0(gUnknown_0203CE58.location);
+        gTasks[taskId].data[0] = ListMenuInit(&gMultiuseListMenuTemplate, gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket], gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]);
+        gTasks[taskId].data[3] = 0;
+        gTasks[taskId].data[8] = 0;
+        gMain.state++;
+        break;
+    case 15:
+        AddBagVisualObject(gUnknown_0203CE58.pocket);
+        gMain.state++;
+        break;
+    case 16:
+        sub_80D4FAC();
+        gMain.state++;
+        break;
+    case 17:
+        bag_menu_add_pocket_scroll_arrow_indicators_maybe();
+        bag_menu_add_list_scroll_arrow_indicators_maybe();
+        gMain.state++;
+        break;
+    case 18:
+        bag_menu_prepare_tmhm_move_window();
+        gMain.state++;
+        break;
+    case 19:
+        BlendPalettes(-1, 16, 0);
+        gMain.state++;
+        break;
+    case 20:
+        BeginNormalPaletteFade(-1, 0, 16, 0, 0);
+        gPaletteFade.bufferTransferDisabled = FALSE;
+        gMain.state++;
+        break;
+    default:
+        SetVBlankCallback(vblank_cb_bag_menu);
+        SetMainCallback2(c2_bag_3);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void bag_menu_init_bgs(void)
+{
+    ResetVramOamAndBgCntRegs();
+    memset(gUnknown_0203CE54->unk4, 0, 0x800);
+    ResetBgsAndClearDma3BusyFlags(0);
+    InitBgsFromTemplates(0, gUnknown_08613F90, 3);
+    SetBgTilemapBuffer(2, gUnknown_0203CE54->unk4);
+    ResetAllBgsCoordinates();
+    schedule_bg_copy_tilemap_to_vram(2);
+    SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP);
+    ShowBg(0);
+    ShowBg(1);
+    ShowBg(2);
+    SetGpuReg(REG_OFFSET_BLDCNT, 0);
+}
+
+bool8 load_bag_menu_graphics(void)
+{
+    switch (gUnknown_0203CE54->unk834)
+    {
+        case 0:
+            reset_temp_tile_data_buffers();
+            decompress_and_copy_tile_data_to_vram(2, gBagScreen_Gfx, 0, 0, 0);
+            gUnknown_0203CE54->unk834++;
+            break;
+        case 1:
+            if (free_temp_tile_data_buffers_if_possible() != TRUE)
+            {
+                LZDecompressWram(gUnknown_08D9A88C, gUnknown_0203CE54->unk4);
+                gUnknown_0203CE54->unk834++;
+            }
+            break;
+        case 2:
+            if (!IsWallysBag() && gSaveBlock2Ptr->playerGender != MALE)
+                LoadCompressedPalette(gBagScreenFemale_Pal, 0, 0x40);
+            else
+                LoadCompressedPalette(gBagScreenMale_Pal, 0, 0x40);
+            gUnknown_0203CE54->unk834++;
+            break;
+        case 3:
+            if (IsWallysBag() == TRUE || gSaveBlock2Ptr->playerGender == MALE)
+                LoadCompressedObjectPic(&gUnknown_0857FB34);
+            else
+                LoadCompressedObjectPic(&gUnknown_0857FB3C);
+            gUnknown_0203CE54->unk834++;
+            break;
+        case 4:
+            LoadCompressedObjectPalette(&gUnknown_0857FB44);
+            gUnknown_0203CE54->unk834++;
+            break;
+        default:
+            LoadListMenuArrowsGfx();
+            gUnknown_0203CE54->unk834 = 0;
+            return TRUE;
+    }
+    return FALSE;
+}
+
+u8 sub_81AB1F0(u8 a)
+{
+    u8 taskId;
+    if (a == 10)
+        taskId = CreateTask(Task_WallyTutorialBagMenu, 0);
+    else
+        taskId = CreateTask(Task_BagMenu, 0);
+    return taskId;
+}
+
+void allocate_bag_item_list_buffers(void)
+{
+    gUnknown_0203CE74 = Alloc(sizeof(struct ListBuffer1));
+    gUnknown_0203CE78 = Alloc(sizeof(struct ListBuffer2));
+}
+
+void load_bag_item_list_buffers(u8 pocketId)
+{
+    u16 i;
+    struct BagPocket *pocket = &gBagPockets[pocketId];
+    struct ListMenuItem *subBuffer;
+    
+    if (!gUnknown_0203CE54->unk81B_2)
+    {
+        for (i = 0; i < gUnknown_0203CE54->unk829[pocketId] - 1; i++)
+        {
+            get_name(gUnknown_0203CE78->name[i], pocket->itemSlots[i].itemId);
+            subBuffer = gUnknown_0203CE74->subBuffers;
+            subBuffer[i].name = gUnknown_0203CE78->name[i];
+            subBuffer[i].id = i;
+        }
+        StringCopy(gUnknown_0203CE78->name[i], gText_CloseBag);
+        subBuffer = gUnknown_0203CE74->subBuffers;
+        subBuffer[i].name = gUnknown_0203CE78->name[i];
+        subBuffer[i].id = -2;
+    }
+    else
+    {
+        for (i = 0; i < gUnknown_0203CE54->unk829[pocketId]; i++)
+        {
+            get_name(gUnknown_0203CE78->name[i], pocket->itemSlots[i].itemId);
+            subBuffer = gUnknown_0203CE74->subBuffers;
+            subBuffer[i].name = gUnknown_0203CE78->name[i];
+            subBuffer[i].id = i;
+        }
+    }
+    gMultiuseListMenuTemplate = gUnknown_08613F9C;
+    gMultiuseListMenuTemplate.totalItems = gUnknown_0203CE54->unk829[pocketId];
+    gMultiuseListMenuTemplate.items = gUnknown_0203CE74->subBuffers;
+    gMultiuseListMenuTemplate.maxShowed = gUnknown_0203CE54->unk82E[pocketId];
+}
+
+void get_name(s8 *dest, u16 itemId)
+{
+    switch (gUnknown_0203CE58.pocket)
+    {
+        case 2:
+            StringCopy(gStringVar2, gMoveNames[ItemIdToBattleMoveId(itemId)]);
+            if (itemId >= ITEM_HM01)
+            {
+                ConvertIntToDecimalStringN(gStringVar1, itemId - ITEM_HM01 + 1, 2, 1);
+                StringExpandPlaceholders(dest, gText_ClearTo11Var1Clear5Var2);
+            }
+            else
+            {
+                ConvertIntToDecimalStringN(gStringVar1, itemId - ITEM_TM01 + 1, 2, 2);
+                StringExpandPlaceholders(dest, gText_UnkF908Var1Clear7Var2);
+            }
+            break;
+        case 3:
+            ConvertIntToDecimalStringN(gStringVar1, itemId - ITEM_CHERI_BERRY + 1, 2, 2);
+            CopyItemName(itemId, gStringVar2);
+            StringExpandPlaceholders(dest, gText_UnkF908Var1Clear7Var2);
+            break;
+        default:
+            CopyItemName(itemId, dest);
+            break;
+    }
+}
+
+void bag_menu_change_item_callback(u32 a, bool8 b, struct ListMenu *unused)
+{
+    if (b != 1)
+    {
+        PlaySE(SE_SELECT);
+        ShakeBagVisual();
+    }
+    if (gUnknown_0203CE54->unk81A == 0xFF)
+    {
+        RemoveBagItemIconObject(1 ^ gUnknown_0203CE54->unk81B_1);
+        if (a != -2)
+           AddBagItemIconObject(BagGetItemIdByPocketPosition(gUnknown_0203CE58.pocket + 1, a), gUnknown_0203CE54->unk81B_1);
+        else
+           AddBagItemIconObject(-1, gUnknown_0203CE54->unk81B_1);
+        gUnknown_0203CE54->unk81B_1 ^= 1;
+        if (!gUnknown_0203CE54->unk81B_3)
+            bag_menu_print_description_box_text(a);
+    }
+}
+
+void sub_81AB520(u8 rboxId, int item_index_in_pocket, u8 a)
+{
+    u16 itemId;
+    u16 itemQuantity;
+    bool8 unique;
+    int offset;
+    if (item_index_in_pocket != -2)
+    {
+        if (gUnknown_0203CE54->unk81A != 0xFF)
+        {
+            if (gUnknown_0203CE54->unk81A == (u8)item_index_in_pocket)
+                bag_menu_print_cursor(a, 2);
+            else
+                bag_menu_print_cursor(a, -1);
+        }
+        itemId = BagGetItemIdByPocketPosition(gUnknown_0203CE58.pocket + 1, item_index_in_pocket);
+        itemQuantity = BagGetQuantityByPocketPosition(gUnknown_0203CE58.pocket + 1, item_index_in_pocket);
+        if ((u16)(itemId - ITEM_HM01) <= 7)
+            BlitBitmapToWindow(rboxId, gBagMenuHMIcon_Gfx, 8, a - 1, 16, 16);
+        if (gUnknown_0203CE58.pocket == 3)
+        {
+            ConvertIntToDecimalStringN(gStringVar1, itemQuantity, 1, 3);
+            StringExpandPlaceholders(gStringVar4, gText_xVar1);
+            offset = GetStringRightAlignXOffset(7, gStringVar4, 0x77);
+            bag_menu_print(rboxId, 7, gStringVar4, offset, a, 0, 0, -1, 0);
+        }
+        else if (gUnknown_0203CE58.pocket != 4 && (unique = itemid_is_unique(itemId)) == FALSE)
+        {
+            ConvertIntToDecimalStringN(gStringVar1, itemQuantity, 1, 2);
+            StringExpandPlaceholders(gStringVar4, gText_xVar1);
+            offset = GetStringRightAlignXOffset(7, gStringVar4, 0x77);
+            bag_menu_print(rboxId, 7, gStringVar4, offset, a, unique, unique, -1, unique);
+        }
+        else
+        {
+            if (gSaveBlock1Ptr->registeredItem && gSaveBlock1Ptr->registeredItem == itemId)
+                BlitBitmapToWindow(rboxId, gUnknown_086140A4, 0x60, a - 1, 0x18, 16);
+        }
+    }
+}
+
+void bag_menu_print_description_box_text(int a)
+{
+    u8* str;
+    if (a != -2)
+    {
+        str = (u8*)ItemId_GetDescription(BagGetItemIdByPocketPosition(gUnknown_0203CE58.pocket + 1, a));
+    }
+    else
+    {
+        StringCopy(gStringVar1, gReturnToXStringsTable[gUnknown_0203CE58.location]);
+        StringExpandPlaceholders(gStringVar4, gText_ReturnToVar1);
+        str = gStringVar4;
+    }
+    FillWindowPixelBuffer(1, 0);
+    bag_menu_print(1, 1, str, 3, 1, 0, 0, 0, 0);
+}
+
+void bag_menu_print_cursor_(u8 a, u8 b)
+{
+    bag_menu_print_cursor(ListMenuGetYCoordForPrintingArrowCursor(a), b);
+}
+
+void bag_menu_print_cursor(u8 a, u8 b)
+{
+    if (b == 0xFF)
+        FillWindowPixelRect(0, 0, 0, a, GetMenuCursorDimensionByFont(1, 0), GetMenuCursorDimensionByFont(1, 1));
+    else
+        bag_menu_print(0, 1, gText_SelectorArrow2, 0, a, 0, 0, 0, b);
+
+}
+
+void bag_menu_add_pocket_scroll_arrow_indicators_maybe(void)
+{
+    if (gUnknown_0203CE54->unk81E == 0xFF)
+        gUnknown_0203CE54->unk81E = AddScrollIndicatorArrowPairParametrized(2, 0xAC, 12, 0x94, gUnknown_0203CE54->unk829[gUnknown_0203CE58.pocket] - gUnknown_0203CE54->unk82E[gUnknown_0203CE58.pocket], 0x6E, 0x6E, &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket]);
+}
+
+void sub_81AB824(void)
+{
+    if (gUnknown_0203CE54->unk81E != 0xFF)
+    {
+        RemoveScrollIndicatorArrowPair(gUnknown_0203CE54->unk81E);
+        gUnknown_0203CE54->unk81E = 0xFF;
+    }
+    sub_81AB89C();
+}
+
+void bag_menu_add_list_scroll_arrow_indicators_maybe(void)
+{
+    if (gUnknown_0203CE54->unk81B != 1 && gUnknown_0203CE54->unk81F == 0xFF)
+        gUnknown_0203CE54->unk81F = AddScrollIndicatorArrowPair(&gUnknown_08614094, gUnknown_0203CE58.unk6);
+}
+
+void sub_81AB89C(void)
+{
+    if (gUnknown_0203CE54->unk81F != 0xFF)
+    {
+        RemoveScrollIndicatorArrowPair(gUnknown_0203CE54->unk81F);
+        gUnknown_0203CE54->unk81F = 0xFF;
+    }
+}
+
+void free_bag_item_list_buffers(void)
+{
+    Free(gUnknown_0203CE78);
+    Free(gUnknown_0203CE74);
+    FreeAllWindowBuffers();
+    Free(gUnknown_0203CE54);
+}
+
+void unknown_ItemMenu_Confirm(u8 taskId)
+{
+    BeginNormalPaletteFade(-1, 0, 0, 16, 0);
+    gTasks[taskId].func = task_close_bag_menu_2;
+}
+
+void task_close_bag_menu_2(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    if (!gPaletteFade.active)
+    {
+        sub_81AE6C8(data[0], &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket], &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]);
+        if (gUnknown_0203CE54->unk0 != 0)
+            SetMainCallback2(gUnknown_0203CE54->unk0);
+        else
+            SetMainCallback2(gUnknown_0203CE58.bagCallback);
+        sub_81AB824();
+        ResetSpriteData();
+        FreeAllSpritePalettes();
+        free_bag_item_list_buffers();
+        DestroyTask(taskId);
+    }
+}
+
+void sub_81AB9A8(u8 pocketId)
+{
+    u16 i;
+    struct BagPocket *pocket = &gBagPockets[pocketId];
+    switch (pocketId)
+    {
+        case 2:
+        case 3:
+            sub_80D6FB4(pocket);
+            break;
+        default:
+            sub_80D6F64(pocket);
+            break;
+    }
+    gUnknown_0203CE54->unk829[pocketId] = 0;
+    for (i = 0; i < pocket->capacity && pocket->itemSlots[i].itemId; i++)
+        gUnknown_0203CE54->unk829[pocketId]++;
+    if (!gUnknown_0203CE54->unk81B_2)
+        gUnknown_0203CE54->unk829[pocketId]++;
+    if (gUnknown_0203CE54->unk829[pocketId] > 8)
+        gUnknown_0203CE54->unk82E[pocketId] = 8;
+    else
+        gUnknown_0203CE54->unk82E[pocketId] = gUnknown_0203CE54->unk829[pocketId];
+}
+
+void sub_81ABA6C(void)
+{
+    u8 i;
+    for (i = 0; i < 5; i++)
+        sub_81AB9A8(i);
+}
+
+void sub_81ABA88(u8 a)
+{
+    sub_812225C(&gUnknown_0203CE58.scrollPosition[a], &gUnknown_0203CE58.cursorPosition[a], gUnknown_0203CE54->unk82E[a], gUnknown_0203CE54->unk829[a]);
+}
+
+void sub_81ABAC4(void)
+{
+    u8 i;
+    for (i = 0; i < 5; i++)
+        sub_81ABA88(i);
+}
+
+void sub_81ABAE0(void)
+{
+    u8 i;
+    for (i = 0; i < 5; i++)
+        sub_8122298(&gUnknown_0203CE58.scrollPosition[i], &gUnknown_0203CE58.cursorPosition[i], gUnknown_0203CE54->unk82E[i], gUnknown_0203CE54->unk829[i], 8);
+}
+
+u8 sub_81ABB2C(u8 a)
+{
+    return gUnknown_0203CE58.scrollPosition[a] + gUnknown_0203CE58.cursorPosition[a];
+}
+
+void DisplayItemMessage(u8 taskId, u8 fontId, const u8 *str, void ( *callback)(u8 taskId))
+{
+    s16* data = gTasks[taskId].data;
+    
+    data[10] = AddItemMessageWindow(4);
+    FillWindowPixelBuffer(data[10], 17);
+    DisplayMessageAndContinueTask(taskId, data[10], 10, 13, fontId, GetPlayerTextSpeed(), str, callback);
+    schedule_bg_copy_tilemap_to_vram(1);
+}
+
+void bag_menu_inits_lists_menu(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u16* scrollPos = &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket];
+    u16* cursorPos = &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    bag_menu_RemoveBagItem_message_window(4);
+    sub_81AE6C8(data[0], scrollPos, cursorPos);
+    sub_81AB9A8(gUnknown_0203CE58.pocket);
+    sub_81ABA88(gUnknown_0203CE58.pocket);
+    load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+    data[0] = ListMenuInit(&gMultiuseListMenuTemplate, *scrollPos, *cursorPos);
+    schedule_bg_copy_tilemap_to_vram(0);
+    set_callback3_to_bag(taskId);
+}
+
+void sub_81ABC3C(u8 a)
+{
+    sub_81ABC54(bag_menu_add_window(a), 1);
+}
+
+void sub_81ABC54(u8 a, s16 b)
+{
+    u8 r3 = (gUnknown_0203CE58.pocket == 3) ? 3 : 2;
+    ConvertIntToDecimalStringN(gStringVar1, b, 2, r3);
+    StringExpandPlaceholders(gStringVar4, gText_xVar1);
+    PrintTextOnWindow(a, 1, gStringVar4, GetStringCenterAlignXOffset(1, gStringVar4, 0x28), 2, 0, 0);
+}
+
+void sub_81ABCC0(int a, int b, int c)
+{
+    u8 r3 = (gUnknown_0203CE58.pocket == 3) ? 3 : 2;
+    ConvertIntToDecimalStringN(gStringVar1, b, 2, r3);
+    StringExpandPlaceholders(gStringVar4, gText_xVar1);
+    PrintTextOnWindow(a, 1, gStringVar4, 0, 1, -1, 0);
+    PrintMoneyAmount(a, 0x26, 1, c, 0);
+}
+
+void Task_BagMenu(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u16* scrollPos = &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket];
+    u16* cursorPos = &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    u16 select;
+    if (sub_81221EC() != TRUE && !gPaletteFade.active)
+    {
+        switch (GetSwitchBagPocketDirection())
+        {
+            case 1:
+                SwitchBagPocket(taskId, -1, 0);
+                return;
+            case 2:
+                SwitchBagPocket(taskId, 1, 0);
+                return;
+        }
+        if ((select = (gMain.newKeys & SELECT_BUTTON)))
+        {
+            if (sub_81AC2C0() == 1)
+            {
+                sub_81AE860(data[0], scrollPos, cursorPos);
+                if ((*scrollPos + *cursorPos) != gUnknown_0203CE54->unk829[gUnknown_0203CE58.pocket] - 1)
+                {
+                    PlaySE(SE_SELECT);
+                    bag_menu_swap_items(taskId);
+                }
+            }
+            return;
+        }
+        else
+        {
+            int r4 = ListMenuHandleInputGetItemId(data[0]);
+            sub_81AE860(data[0], scrollPos, cursorPos);
+            switch (r4)
+            {
+                case -1:
+                    break;
+                case -2:
+                    if (gUnknown_0203CE58.location == 5)
+                    {
+                        PlaySE(SE_HAZURE);
+                        break;
+                    }
+                    PlaySE(SE_SELECT);
+                    gSpecialVar_ItemId = select;
+                    gTasks[taskId].func = unknown_ItemMenu_Confirm;
+                    break;
+                default:
+                    PlaySE(SE_SELECT);
+                    sub_81AB824();
+                    bag_menu_print_cursor_(data[0], 2);
+                    data[1] = r4;
+                    data[2] = BagGetQuantityByPocketPosition(gUnknown_0203CE58.pocket + 1, r4);
+                    gSpecialVar_ItemId = BagGetItemIdByPocketPosition(gUnknown_0203CE58.pocket + 1, r4);
+                    gUnknown_08614054[gUnknown_0203CE58.location](taskId);
+                    break;
+            }
+        }
+    }
+}
+
+void set_callback3_to_bag(u8 taskId)
+{
+    bag_menu_add_pocket_scroll_arrow_indicators_maybe();
+    bag_menu_add_list_scroll_arrow_indicators_maybe();
+    ClearWindowTilemap(3);
+    ClearWindowTilemap(4);
+    PutWindowTilemap(1);
+    schedule_bg_copy_tilemap_to_vram(0);
+    gTasks[taskId].func = Task_BagMenu;
+}
+
+u8 GetSwitchBagPocketDirection(void)
+{
+    u8 LRKeys;
+    if (gUnknown_0203CE54->unk81B != 0)
+        return 0;
+    LRKeys = GetLRKeysState();
+    if ((gMain.newKeys & DPAD_LEFT) || LRKeys == 1)
+    {
+        PlaySE(SE_SELECT);
+        return 1;
+    }
+    if ((gMain.newKeys & DPAD_RIGHT) || LRKeys == 2)
+    {
+        PlaySE(SE_SELECT);
+        return 2;
+    }
+    return 0;
+}
+
+
+void ChangeBagPocketId(u8 *bagPocketId, s8 deltaBagPocketId)
+{
+    if (deltaBagPocketId == 1 && *bagPocketId == 4)
+        *bagPocketId = 0;
+    else if (deltaBagPocketId == -1 && *bagPocketId == 0)
+        *bagPocketId = 4;
+    else
+        *bagPocketId += deltaBagPocketId;
+}
+
+#ifdef NONMATCHING
+void SwitchBagPocket(u8 taskId, s16 deltaBagPocketId, u16 a3)
+{
+    s16* data = gTasks[taskId].data;
+    u8 pocketId;
+
+    
+    data[13] = 0;
+    data[12] = 0;
+    data[11] = deltaBagPocketId;
+    if (a3 == 0)
+    {
+        ClearWindowTilemap(0);
+        ClearWindowTilemap(1);
+        sub_81AE6C8(data[0], &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket], &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]);
+        schedule_bg_copy_tilemap_to_vram(0);
+        gSprites[gUnknown_0203CE54->unk806[gUnknown_0203CE54->unk81B_1 ^ 1]].invisible = 1;
+        sub_81AB824();
+    }
+    pocketId = gUnknown_0203CE58.pocket;
+    ChangeBagPocketId(&pocketId, deltaBagPocketId);
+    if (deltaBagPocketId == 1)
+    {
+        bag_menu_print_pocket_names(gPocketNamesStringsTable[gUnknown_0203CE58.pocket], gPocketNamesStringsTable[pocketId]);
+        bag_menu_copy_pocket_name_to_window(0);
+    }
+    else
+    {
+        bag_menu_print_pocket_names(gPocketNamesStringsTable[pocketId], gPocketNamesStringsTable[gUnknown_0203CE58.pocket]);
+        bag_menu_copy_pocket_name_to_window(8);
+    }
+    bag_menu_draw_pocket_indicator_square(gUnknown_0203CE58.pocket, 0);
+    bag_menu_draw_pocket_indicator_square(pocketId, 1);
+    FillBgTilemapBufferRect_Palette0(2, 11, 14, 2, 15, 16);
+    schedule_bg_copy_tilemap_to_vram(2);
+    SetBagVisualPocketId(pocketId, 1);
+    RemoveBagObject(1);
+    AddSwitchPocketRotatingBallObject(deltaBagPocketId);
+    SetTaskFuncWithFollowupFunc(taskId, sub_81AC10C, gTasks[taskId].func);
+}
+#else
+__attribute__((naked))
+void SwitchBagPocket(u8 taskId, s16 deltaBagPocketId, u16 a3)
+{
+    asm(".syntax unified\n\
+    push {r4-r6,lr}\n\
+	sub sp, 0xC\n\
+	lsls r0, 24\n\
+	lsrs r6, r0, 24\n\
+	lsls r1, 16\n\
+	lsrs r5, r1, 16\n\
+	lsls r2, 16\n\
+	lsls r0, r6, 2\n\
+	adds r0, r6\n\
+	lsls r0, 3\n\
+	ldr r1, =gTasks + 0x8\n\
+	adds r4, r0, r1\n\
+	movs r0, 0\n\
+	strh r0, [r4, 0x1A]\n\
+	strh r0, [r4, 0x18]\n\
+	strh r5, [r4, 0x16]\n\
+	cmp r2, 0\n\
+	bne _081AC026\n\
+	movs r0, 0\n\
+	bl ClearWindowTilemap\n\
+	movs r0, 0x1\n\
+	bl ClearWindowTilemap\n\
+	ldrb r0, [r4]\n\
+	ldr r3, =gUnknown_0203CE58\n\
+	ldrb r2, [r3, 0x5]\n\
+	lsls r2, 1\n\
+	adds r1, r3, 0\n\
+	adds r1, 0x12\n\
+	adds r1, r2, r1\n\
+	adds r3, 0x8\n\
+	adds r2, r3\n\
+	bl sub_81AE6C8\n\
+	movs r0, 0\n\
+	bl schedule_bg_copy_tilemap_to_vram\n\
+	ldr r3, =gSprites\n\
+	ldr r0, =gUnknown_0203CE54\n\
+	ldr r2, [r0]\n\
+	ldr r1, =0x0000081b\n\
+	adds r0, r2, r1\n\
+	ldrb r1, [r0]\n\
+	lsls r1, 26\n\
+	lsrs r1, 30\n\
+	movs r0, 0x1\n\
+	eors r0, r1\n\
+	adds r2, r0\n\
+	ldr r0, =0x00000806\n\
+	adds r2, r0\n\
+	ldrb r1, [r2]\n\
+	lsls r0, r1, 4\n\
+	adds r0, r1\n\
+	lsls r0, 2\n\
+	adds r0, r3\n\
+	adds r0, 0x3E\n\
+	ldrb r1, [r0]\n\
+	movs r2, 0x4\n\
+	orrs r1, r2\n\
+	strb r1, [r0]\n\
+	bl sub_81AB824\n\
+_081AC026:\n\
+	ldr r4, =gUnknown_0203CE58\n\
+	ldrb r1, [r4, 0x5]\n\
+	add r0, sp, 0x8\n\
+	strb r1, [r0]\n\
+	lsls r1, r5, 24\n\
+	asrs r1, 24\n\
+	bl ChangeBagPocketId\n\
+	lsls r0, r5, 16\n\
+	asrs r1, r0, 16\n\
+	adds r5, r0, 0\n\
+	cmp r1, 0x1\n\
+	bne _081AC07C\n\
+	ldr r2, =gPocketNamesStringsTable\n\
+	ldrb r0, [r4, 0x5]\n\
+	lsls r0, 2\n\
+	adds r0, r2\n\
+	ldr r0, [r0]\n\
+	add r1, sp, 0x8\n\
+	ldrb r1, [r1]\n\
+	lsls r1, 2\n\
+	adds r1, r2\n\
+	ldr r1, [r1]\n\
+	bl bag_menu_print_pocket_names\n\
+	movs r0, 0\n\
+	bl bag_menu_copy_pocket_name_to_window\n\
+	b _081AC09A\n\
+	.pool\n\
+_081AC07C:\n\
+	ldr r2, =gPocketNamesStringsTable\n\
+	add r0, sp, 0x8\n\
+	ldrb r0, [r0]\n\
+	lsls r0, 2\n\
+	adds r0, r2\n\
+	ldr r0, [r0]\n\
+	ldrb r1, [r4, 0x5]\n\
+	lsls r1, 2\n\
+	adds r1, r2\n\
+	ldr r1, [r1]\n\
+	bl bag_menu_print_pocket_names\n\
+	movs r0, 0x8\n\
+	bl bag_menu_copy_pocket_name_to_window\n\
+_081AC09A:\n\
+	ldr r0, =gUnknown_0203CE58\n\
+	ldrb r0, [r0, 0x5]\n\
+	movs r1, 0\n\
+	bl bag_menu_draw_pocket_indicator_square\n\
+	add r0, sp, 0x8\n\
+	ldrb r0, [r0]\n\
+	movs r1, 0x1\n\
+	bl bag_menu_draw_pocket_indicator_square\n\
+	movs r0, 0xF\n\
+	str r0, [sp]\n\
+	movs r0, 0x10\n\
+	str r0, [sp, 0x4]\n\
+	movs r0, 0x2\n\
+	movs r1, 0xB\n\
+	movs r2, 0xE\n\
+	movs r3, 0x2\n\
+	bl FillBgTilemapBufferRect_Palette0\n\
+	movs r0, 0x2\n\
+	bl schedule_bg_copy_tilemap_to_vram\n\
+	add r0, sp, 0x8\n\
+	ldrb r0, [r0]\n\
+	movs r1, 0x1\n\
+	bl SetBagVisualPocketId\n\
+	movs r0, 0x1\n\
+	bl RemoveBagObject\n\
+	asrs r0, r5, 16\n\
+	bl AddSwitchPocketRotatingBallObject\n\
+	ldr r1, =sub_81AC10C\n\
+	ldr r2, =gTasks\n\
+	lsls r0, r6, 2\n\
+	adds r0, r6\n\
+	lsls r0, 3\n\
+	adds r0, r2\n\
+	ldr r2, [r0]\n\
+	adds r0, r6, 0\n\
+	bl SetTaskFuncWithFollowupFunc\n\
+	add sp, 0xC\n\
+	pop {r4-r6}\n\
+	pop {r0}\n\
+	bx r0\n\
+	.pool\n\
+    .syntax divided\n");
+}
+#endif
+
+void sub_81AC10C(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    if (!sub_81221AC() && !IsWallysBag())
+    {
+        switch (GetSwitchBagPocketDirection())
+        {
+            case 1:
+                ChangeBagPocketId(&gUnknown_0203CE58.pocket, data[11]);
+                SwitchTaskToFollowupFunc(taskId);
+                SwitchBagPocket(taskId, -1, 1);
+                return;
+            case 2:
+                ChangeBagPocketId(&gUnknown_0203CE58.pocket, data[11]);
+                SwitchTaskToFollowupFunc(taskId);
+                SwitchBagPocket(taskId, 1, 1);
+                return;
+        }
+    }
+    switch (data[13])
+    {
+        case 0:
+            sub_81AC23C(data[12]);
+            if (!(++data[12] & 1))
+            {
+                if (data[11] == 1)
+                    bag_menu_copy_pocket_name_to_window((u8)(data[12] >> 1));
+                else
+                    bag_menu_copy_pocket_name_to_window((u8)(8 - (data[12] >> 1)));
+            }
+            if (data[12] == 16)
+                data[13]++;
+            break;
+        case 1:
+            ChangeBagPocketId(&gUnknown_0203CE58.pocket, data[11]);
+            load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+            data[0] = ListMenuInit(&gMultiuseListMenuTemplate, gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket], gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]);
+            PutWindowTilemap(1);
+            PutWindowTilemap(2);
+            schedule_bg_copy_tilemap_to_vram(0);
+            bag_menu_add_pocket_scroll_arrow_indicators_maybe();
+            bag_menu_add_list_scroll_arrow_indicators_maybe();
+            SwitchTaskToFollowupFunc(taskId);
+    }
+}
+
+void sub_81AC23C(u8 a)
+{
+    FillBgTilemapBufferRect_Palette0(2, 17, 14, a + 2, 15, 1);
+    schedule_bg_copy_tilemap_to_vram(2);
+}
+
+void bag_menu_draw_pocket_indicator_square(u8 x, u8 is_current_bag)
+{
+    if (is_current_bag == 0)
+        FillBgTilemapBufferRect_Palette0(2, 0x1017, x + 5, 3, 1, 1);
+    else
+        FillBgTilemapBufferRect_Palette0(2, 0x102B, x + 5, 3, 1, 1);
+    schedule_bg_copy_tilemap_to_vram(2);
+}
+
+bool8 sub_81AC2C0(void)
+{
+    if (gUnknown_0203CE58.location <= 1)
+    {
+        u8 temp = gUnknown_0203CE58.pocket - 2;
+        if (temp > 1)
+            return TRUE;
+    }
+    return FALSE;
+}
+
+void bag_menu_swap_items(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    sub_81AF15C(data[0], 16, 1);
+    data[1] = gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket] + gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    gUnknown_0203CE54->unk81A = data[1];
+    CopyItemName(BagGetItemIdByPocketPosition(gUnknown_0203CE58.pocket + 1, data[1]), gStringVar1);
+    StringExpandPlaceholders(gStringVar4, gText_MoveVar1Where);
+    FillWindowPixelBuffer(1, 0);
+    bag_menu_print(1, 1, gStringVar4, 3, 1, 0, 0, 0, 0);
+    sub_80D4FEC(data[1]);
+    sub_81AB89C();
+    bag_menu_print_cursor_(data[0], 2);
+    gTasks[taskId].func = sub_81AC3C0;
+}
+
+void sub_81AC3C0(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    int r7;
+    
+    if (sub_81221EC() != TRUE)
+    {
+        if (gMain.newKeys & SELECT_BUTTON)
+        {
+            PlaySE(SE_SELECT);
+            sub_81AE860(data[0], &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket], &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]);
+            sub_81AC498(taskId);
+        }
+        else
+        {
+            r7 = ListMenuHandleInputGetItemId(data[0]);
+            sub_81AE860(data[0], &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket], &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]);
+            sub_80D4FC8(0);
+            sub_80D4FEC(gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]);
+            switch (r7)
+            {
+                case -1:
+                    break;
+                case -2:
+                    PlaySE(SE_SELECT);
+                    if (gMain.newKeys & A_BUTTON)
+                        sub_81AC498(taskId);
+                    else
+                        sub_81AC590(taskId);
+                    break;
+                default:
+                    PlaySE(SE_SELECT);
+                    sub_81AC498(taskId);
+            }
+        }
+    }
+}
+
+void sub_81AC498(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u16* scrollPos = &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket];
+    u16* cursorPos = &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    u16 realPos = (*scrollPos + *cursorPos);
+    
+    if (data[1] == realPos || data[1] == (realPos - 1))
+        sub_81AC590(taskId);
+    else
+    {
+        sub_80D702C(gBagPockets[gUnknown_0203CE58.pocket].itemSlots, data[1], realPos);
+        gUnknown_0203CE54->unk81A = -1;
+        sub_81AE6C8(data[0], scrollPos, cursorPos);
+        if (data[1] < realPos)
+            gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]--;
+        load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+        data[0] = ListMenuInit(&gMultiuseListMenuTemplate, *scrollPos, *cursorPos);
+        sub_80D4FC8(1);
+        bag_menu_add_list_scroll_arrow_indicators_maybe();
+        gTasks[taskId].func = Task_BagMenu;
+    }
+}
+
+void sub_81AC590(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u16* scrollPos = &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket];
+    u16* cursorPos = &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    
+    gUnknown_0203CE54->unk81A = -1;
+    sub_81AE6C8(data[0], scrollPos, cursorPos);
+    if (data[1] < (*scrollPos + *cursorPos))
+        gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket]--;
+    load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+    data[0] = ListMenuInit(&gMultiuseListMenuTemplate, *scrollPos, *cursorPos);
+    sub_80D4FC8(1);
+    bag_menu_add_list_scroll_arrow_indicators_maybe();
+    gTasks[taskId].func = Task_BagMenu;
+}
+
+void sub_81AC644(u8 unused)
+{
+    switch (gUnknown_0203CE58.location - 1)
+    {
+        case 0:
+        case 9:
+            if (ItemId_GetBattleUsage(gSpecialVar_ItemId))
+            {
+                gUnknown_0203CE54->unk820 = gUnknown_08614042;
+                gUnknown_0203CE54->unk828 = 2;
+            }
+            else
+            {
+                gUnknown_0203CE54->unk820 = &gUnknown_08614046;
+                gUnknown_0203CE54->unk828 = 1;
+            }
+            break;
+        case 4:
+            gUnknown_0203CE54->unk820 = gUnknown_08614047;
+            gUnknown_0203CE54->unk828 = 4;
+            break;
+        case 8:
+            if (!itemid_is_unique(gSpecialVar_ItemId) && gSpecialVar_ItemId != ITEM_ENIGMA_BERRY)
+            {
+                gUnknown_0203CE54->unk820 = gUnknown_0861404B;
+                gUnknown_0203CE54->unk828 = 2;
+            }
+            else
+            {
+                gUnknown_0203CE54->unk820 = &gUnknown_08614046;
+                gUnknown_0203CE54->unk828 = 1;
+            }
+            break;
+        case 6:
+            if (!itemid_is_unique(gSpecialVar_ItemId) && gSpecialVar_ItemId != ITEM_ENIGMA_BERRY)
+            {
+                gUnknown_0203CE54->unk820 = gUnknown_0861404D;
+                gUnknown_0203CE54->unk828 = 2;
+            }
+            else
+            {
+                gUnknown_0203CE54->unk820 = &gUnknown_08614046;
+                gUnknown_0203CE54->unk828 = 1;
+            }
+            break;
+        case 7:
+            if (!itemid_is_unique(gSpecialVar_ItemId) && gSpecialVar_ItemId != ITEM_ENIGMA_BERRY)
+            {
+                gUnknown_0203CE54->unk820 = gUnknown_0861404F;
+                gUnknown_0203CE54->unk828 = 2;
+            }
+            else
+            {
+                gUnknown_0203CE54->unk820 = &gUnknown_08614046;
+                gUnknown_0203CE54->unk828 = 1;
+            }
+            break;
+        case 1:
+        case 2:
+        case 3:
+        case 5:
+        default:
+            if (sub_81221AC() == TRUE || InUnionRoom() == TRUE)
+            {
+                if (gUnknown_0203CE58.pocket == 4 || !sub_8122148(gSpecialVar_ItemId))
+                {
+                    gUnknown_0203CE54->unk820 = &gUnknown_08614046;
+                    gUnknown_0203CE54->unk828 = 1;
+                }
+                else
+                {
+                    gUnknown_0203CE54->unk820 = gUnknown_08614044;
+                    gUnknown_0203CE54->unk828 = 2;
+                }
+            }
+            else
+            {
+                switch (gUnknown_0203CE58.pocket)
+                {
+                    case 0:
+                        gUnknown_0203CE54->unk820 = &gUnknown_0203CE54->unk824;
+                        gUnknown_0203CE54->unk828 = 4;
+                        memcpy(&gUnknown_0203CE54->unk824, &gUnknown_0861402C, 4);
+                        if (ItemIsMail(gSpecialVar_ItemId) == TRUE)
+                            gUnknown_0203CE54->unk824 = 6;
+                        break;
+                    case 4:
+                        gUnknown_0203CE54->unk820 = &gUnknown_0203CE54->unk824;
+                        gUnknown_0203CE54->unk828 = 4;
+                        memcpy(&gUnknown_0203CE54->unk824, &gUnknown_08614030, 4);
+                        if (gSaveBlock1Ptr->registeredItem == gSpecialVar_ItemId)
+                            gUnknown_0203CE54->unk825 = 8;
+                        if (gSpecialVar_ItemId == ITEM_MACH_BIKE || gSpecialVar_ItemId == ITEM_ACRO_BIKE)
+                        {
+                            if (TestPlayerAvatarFlags(6))
+                                gUnknown_0203CE54->unk824 = 7;
+                        }
+                        break;
+                    case 1:
+                        gUnknown_0203CE54->unk820 = gUnknown_08614034;
+                        gUnknown_0203CE54->unk828 = 4;
+                        break;
+                    case 2:
+                        gUnknown_0203CE54->unk820 = gUnknown_08614038;
+                        gUnknown_0203CE54->unk828 = 4;
+                        break;
+                    case 3:
+                        gUnknown_0203CE54->unk820 = gUnknown_0861403C;
+                        gUnknown_0203CE54->unk828 = 6;
+                        break;
+                }
+            }
+    }
+    if (gUnknown_0203CE58.pocket == 2)
+    {
+        ClearWindowTilemap(1);
+        PrintTMHMMoveData(gSpecialVar_ItemId);
+        PutWindowTilemap(3);
+        PutWindowTilemap(4);
+        schedule_bg_copy_tilemap_to_vram(0);
+    }
+    else
+    {
+        CopyItemName(gSpecialVar_ItemId, gStringVar1);
+        StringExpandPlaceholders(gStringVar4, gText_Var1IsSelected);
+        FillWindowPixelBuffer(1, 0);
+        bag_menu_print(1, 1, gStringVar4, 3, 1, 0, 0, 0, 0);
+    }
+    if (gUnknown_0203CE54->unk828 == 1)
+        sub_81ACAF8(bag_menu_add_window(0));
+    else if (gUnknown_0203CE54->unk828 == 2)
+        sub_81ACAF8(bag_menu_add_window(1));
+    else if (gUnknown_0203CE54->unk828 == 4)
+        sub_81ACB54(bag_menu_add_window(2), 2, 2);
+    else
+        sub_81ACB54(bag_menu_add_window(3), 2, 3);
+}
+
+void sub_81ACAF8(u8 a)
+{
+    AddItemMenuActionTextPrinters(a, 7, 8, 1, 0, 16, gUnknown_0203CE54->unk828, gUnknown_08613FB4, gUnknown_0203CE54->unk820);
+    InitMenuInUpperLeftCornerPlaySoundWhenAPressed(a, gUnknown_0203CE54->unk828, 0);
+}
+
+void sub_81ACB54(u8 a, u8 b, u8 c)
+{
+    sub_8198DBC(a, 7, 8, 1, 0x38, b, c, gUnknown_08613FB4, gUnknown_0203CE54->unk820);
+    sub_8199944(a, 0x38, b, c, 0);
+}
+
+void unknown_item_menu_type(u8 taskId)
+{
+    sub_81AC644(taskId);
+    if (gUnknown_0203CE54->unk828 <= 2)
+        gTasks[taskId].func = Task_HandleInBattleItemMenuInput;
+    else
+        gTasks[taskId].func = Task_HandleOutOfBattleItemMenuInput;
+}
+
+void Task_HandleInBattleItemMenuInput(u8 taskId)
+{
+    if (sub_81221EC() != TRUE)
+    {
+        s8 r4 = ProcessMenuInputNoWrapAround();
+        switch (r4)
+        {
+            case -2:
+                break;
+            case -1:
+                PlaySE(SE_SELECT);
+                gUnknown_08613FB4[4].func.void_u8(taskId);
+                break;
+            default:
+                PlaySE(SE_SELECT);
+                gUnknown_08613FB4[gUnknown_0203CE54->unk820[r4]].func.void_u8(taskId);
+                break;
+        }
+    }
+}
+
+void Task_HandleOutOfBattleItemMenuInput(u8 taskId)
+{
+    if (sub_81221EC() != TRUE)
+    {
+        s8 cursorPos = GetMenuCursorPos();
+        if (gMain.newKeys & DPAD_UP)
+        {
+            if (cursorPos > 0 && sub_81ACDFC(cursorPos - 2))
+            {
+                PlaySE(SE_SELECT);
+                sub_8199134(0, -1);
+            }
+        }
+        else if (gMain.newKeys & DPAD_DOWN)
+        {
+            if (cursorPos < (gUnknown_0203CE54->unk828 - 2) && sub_81ACDFC(cursorPos + 2))
+            {
+                PlaySE(SE_SELECT);
+                sub_8199134(0, 1);
+            }
+        }
+        else if ((gMain.newKeys & DPAD_LEFT) || GetLRKeysState() == 1)
+        {
+            if ((cursorPos & 1) && sub_81ACDFC(cursorPos - 1))
+            {
+                PlaySE(SE_SELECT);
+                sub_8199134(-1, 0);
+            }
+        }
+        else if ((gMain.newKeys & DPAD_RIGHT) || GetLRKeysState() == 2)
+        {
+            if (!(cursorPos & 1) && sub_81ACDFC(cursorPos + 1))
+            {
+                PlaySE(SE_SELECT);
+                sub_8199134(1, 0);
+            }
+        }
+        else if (gMain.newKeys & A_BUTTON)
+        {
+            PlaySE(SE_SELECT);
+            gUnknown_08613FB4[gUnknown_0203CE54->unk820[cursorPos]].func.void_u8(taskId);
+        }
+        else if (gMain.newKeys & B_BUTTON)
+        {
+            PlaySE(SE_SELECT);
+            gUnknown_08613FB4[4].func.void_u8(taskId);
+        }
+    }
+}
+
+bool8 sub_81ACDFC(s8 a)
+{
+    if (a < 0)
+        return FALSE;
+    if (a > gUnknown_0203CE54->unk828)
+        return FALSE;
+    if (gUnknown_0203CE54->unk820[a] == 14)
+        return FALSE;
+    return TRUE;
+}
+
+void bag_menu_remove_some_window(void)
+{
+    if (gUnknown_0203CE54->unk828 == 1)
+            bag_menu_remove_window(0);
+    else if (gUnknown_0203CE54->unk828 == 2)
+    {
+            bag_menu_remove_window(1);
+    }
+    else if (gUnknown_0203CE54->unk828 == 4)
+    {
+            bag_menu_remove_window(2);
+    }
+    else
+            bag_menu_remove_window(3);
+}
+
+void ItemMenu_UseOutOfBattle(u8 taskId)
+{
+    if (ItemId_GetFieldFunc(gSpecialVar_ItemId))
+    {
+        bag_menu_remove_some_window();
+        if (CalculatePlayerPartyCount() == 0 && ItemId_GetType(gSpecialVar_ItemId) == 1)
+            bag_menu_print_there_is_no_pokemon(taskId);
+        else
+        {
+            FillWindowPixelBuffer(1, 0);
+            schedule_bg_copy_tilemap_to_vram(0);
+            if (gUnknown_0203CE58.pocket != 3)
+                ItemId_GetFieldFunc(gSpecialVar_ItemId)(taskId);
+            else
+                sub_80FDD10(taskId);
+        }
+    }
+}
+
+void ItemMenu_Toss(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    bag_menu_remove_some_window();
+    data[8] = 1;
+    if (data[2] == 1)
+    {
+        BagMenuConfirmToss(taskId);
+    }
+    else
+    {
+        CopyItemName(gSpecialVar_ItemId, gStringVar1);
+        StringExpandPlaceholders(gStringVar4, gText_TossHowManyVar1s);
+        FillWindowPixelBuffer(1, 0);
+        bag_menu_print(1, 1, gStringVar4, 3, 1, 0, 0, 0, 0);
+        sub_81ABC3C(7);
+        gTasks[taskId].func = Task_ChooseHowManyToToss;
+    }
+}
+
+void BagMenuConfirmToss(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    CopyItemName(gSpecialVar_ItemId, gStringVar1);
+    ConvertIntToDecimalStringN(gStringVar2, data[8], 0, 3);
+    StringExpandPlaceholders(gStringVar4, gText_ConfirmTossItems);
+    FillWindowPixelBuffer(1, 0);
+    bag_menu_print(1, 1, gStringVar4, 3, 1, 0, 0, 0, 0);
+    bag_menu_yes_no(taskId, 5, &gUnknown_08614084);
+}
+
+void BagMenuCancelToss(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    bag_menu_print_description_box_text(data[1]);
+    bag_menu_print_cursor_(data[0], 0);
+    set_callback3_to_bag(taskId);
+}
+
+void Task_ChooseHowManyToToss(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    if (AdjustQuantityAccordingToDPadInput(&data[8], data[2]) == TRUE)
+    {
+        sub_81ABC54(gUnknown_0203CE54->unk817, data[8]);
+    }
+    else if (gMain.newKeys & A_BUTTON)
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_remove_window(7);
+        BagMenuConfirmToss(taskId);
+    }
+    else if (gMain.newKeys & B_BUTTON)
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_remove_window(7);
+        BagMenuCancelToss(taskId);
+    }
+}
+
+void BagMenuActuallyToss(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    CopyItemName(gSpecialVar_ItemId, gStringVar1);
+    ConvertIntToDecimalStringN(gStringVar2, data[8], 0, 3);
+    StringExpandPlaceholders(gStringVar4, gText_ThrewAwayVar2Var1s);
+    FillWindowPixelBuffer(1, 0);
+    bag_menu_print(1, 1, gStringVar4, 3, 1, 0, 0, 0, 0);
+    gTasks[taskId].func = Task_ActuallyToss;
+}
+
+void Task_ActuallyToss(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u16* scrollPos = &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket];
+    u16* cursorPos = &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    
+    if (gMain.newKeys & (A_BUTTON | B_BUTTON))
+    {
+        PlaySE(SE_SELECT);
+        RemoveBagItem(gSpecialVar_ItemId, data[8]);
+        sub_81AE6C8(data[0], scrollPos, cursorPos);
+        sub_81AB9A8(gUnknown_0203CE58.pocket);
+        sub_81ABA88(gUnknown_0203CE58.pocket);
+        load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+        data[0] = ListMenuInit(&gMultiuseListMenuTemplate, *scrollPos, *cursorPos);
+        schedule_bg_copy_tilemap_to_vram(0);
+        set_callback3_to_bag(taskId);
+    }
+}
+
+void ItemMenu_Register(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u16* scrollPos = &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket];
+    u16* cursorPos = &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    
+    if (gSaveBlock1Ptr->registeredItem == gSpecialVar_ItemId)
+        gSaveBlock1Ptr->registeredItem = 0;
+    else
+        gSaveBlock1Ptr->registeredItem = gSpecialVar_ItemId;
+    sub_81AE6C8(data[0], scrollPos, cursorPos);
+    load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+    data[0] = ListMenuInit(&gMultiuseListMenuTemplate, *scrollPos, *cursorPos);
+    schedule_bg_copy_tilemap_to_vram(0);
+    ItemMenu_Cancel(taskId);
+}
+
+void ItemMenu_Give(u8 taskId)
+{
+    bag_menu_remove_some_window();
+    if (!itemid_80BF6D8_mail_related(gSpecialVar_ItemId))
+    {
+        DisplayItemMessage(taskId, 1, gText_CantWriteMail, sub_81AD350);
+    }
+    else if (!itemid_is_unique(gSpecialVar_ItemId))
+    {
+        if (CalculatePlayerPartyCount() == 0)
+            bag_menu_print_there_is_no_pokemon(taskId);
+        else
+        {
+            gUnknown_0203CE54->unk0 = sub_81B7F60;
+            unknown_ItemMenu_Confirm(taskId);
+        }
+    }
+    else
+    {
+        bag_menu_print_cant_be_held_msg(taskId);
+    }
+}
+
+void bag_menu_print_there_is_no_pokemon(u8 taskId)
+{
+    DisplayItemMessage(taskId, 1, gText_NoPokemon, sub_81AD350);
+}
+
+void bag_menu_print_cant_be_held_msg(u8 taskId)
+{
+    CopyItemName(gSpecialVar_ItemId, gStringVar1);
+    StringExpandPlaceholders(gStringVar4, gText_Var1CantBeHeld);
+    DisplayItemMessage(taskId, 1, gStringVar4, sub_81AD350);
+}
+
+void sub_81AD350(u8 taskId)
+{
+    if (gMain.newKeys & A_BUTTON)
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_inits_lists_menu(taskId);
+    }
+}
+
+void ItemMenu_CheckTag(u8 taskId)
+{
+    gUnknown_0203CE54->unk0 = DoBerryTagScreen;
+    unknown_ItemMenu_Confirm(taskId);
+}
+
+void ItemMenu_Cancel(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    bag_menu_remove_some_window();
+    bag_menu_print_description_box_text(data[1]);
+    schedule_bg_copy_tilemap_to_vram(0);
+    schedule_bg_copy_tilemap_to_vram(1);
+    bag_menu_print_cursor_(data[0], 0);
+    set_callback3_to_bag(taskId);
+}
+
+void ItemMenu_UseInBattle(u8 taskId)
+{
+    if (ItemId_GetBattleFunc(gSpecialVar_ItemId))
+    {
+        bag_menu_remove_some_window();
+        ItemId_GetBattleFunc(gSpecialVar_ItemId)(taskId);
+    }
+}
+
+void bag_menu_mail_related(void)
+{
+    GoToBagMenu(12, 5, NULL);
+}
+
+void item_menu_type_2(u8 taskId)
+{
+    if (!itemid_80BF6D8_mail_related(gSpecialVar_ItemId))
+    {
+        DisplayItemMessage(taskId, 1, gText_CantWriteMail, sub_81AD350);
+    }
+    else if (!sub_8122148(gSpecialVar_ItemId))
+    {
+        CopyItemName(gSpecialVar_ItemId, gStringVar1);
+        StringExpandPlaceholders(gStringVar4, gText_Var1CantBeHeldHere);
+        DisplayItemMessage(taskId, 1, gStringVar4, sub_81AD350);
+    }
+    else if (gUnknown_0203CE58.pocket != 4 && !itemid_is_unique(gSpecialVar_ItemId))
+    {
+        unknown_ItemMenu_Confirm(taskId);
+    }
+    else
+    {
+        bag_menu_print_cant_be_held_msg(taskId);
+    }
+}
+
+void item_menu_type_b(u8 taskId)
+{
+    if (ItemIsMail(gSpecialVar_ItemId) == TRUE)
+        DisplayItemMessage(taskId, 1, gText_CantWriteMail, sub_81AD350);
+    else if (gUnknown_0203CE58.pocket != 4 && !itemid_is_unique(gSpecialVar_ItemId))
+        gTasks[taskId].func = unknown_ItemMenu_Confirm;
+    else
+        bag_menu_print_cant_be_held_msg(taskId);
+}
+
+bool8 UseRegisteredKeyItemOnField(void)
+{
+    u8 taskId;
+    
+    if (InUnionRoom() == TRUE || InBattlePyramid() || InBattlePike() || InMultiBattleRoom() == TRUE)
+        return FALSE;
+    HideMapNamePopUpWindow();
+    ChangeBgY_ScreenOff(0, 0, 0);
+    if (gSaveBlock1Ptr->registeredItem != ITEM_NONE)
+    {
+        if (CheckBagHasItem(gSaveBlock1Ptr->registeredItem, 1) == TRUE)
+        {
+            ScriptContext2_Enable();
+            FreezeMapObjects();
+            sub_808B864();
+            sub_808BCF4();
+            gSpecialVar_ItemId = gSaveBlock1Ptr->registeredItem;
+            taskId = CreateTask(ItemId_GetFieldFunc(gSaveBlock1Ptr->registeredItem), 8);
+            gTasks[taskId].data[3] = 1;
+            return TRUE;
+        }
+        else
+            gSaveBlock1Ptr->registeredItem = ITEM_NONE;
+    }
+    ScriptContext1_SetupScript(EventScript_2736B3);
+    return TRUE;
+}
+
+void display_sell_item_ask_str(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    if (itemid_get_market_price(gSpecialVar_ItemId) == 0)
+    {
+        CopyItemName(gSpecialVar_ItemId, gStringVar2);
+        StringExpandPlaceholders(gStringVar4, gText_CantBuyKeyItem);
+        DisplayItemMessage(taskId, 1, gStringVar4, bag_menu_inits_lists_menu);
+    }
+    else 
+    {
+        data[8] = 1;
+        if (data[2] == 1)
+        {
+            bag_menu_AddMoney_window();
+            sub_81AD680(taskId);
+        }
+        else
+        {
+            CopyItemName(gSpecialVar_ItemId, gStringVar2);
+            StringExpandPlaceholders(gStringVar4, gText_HowManyToSell);
+            DisplayItemMessage(taskId, 1, gStringVar4, sub_81AD730);
+        }
+    }
+}
+
+void sub_81AD680(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    ConvertIntToDecimalStringN(gStringVar1, (itemid_get_market_price(gSpecialVar_ItemId) / 2) * data[8], 0, 6);
+    StringExpandPlaceholders(gStringVar4, gText_ICanPayVar1);
+    DisplayItemMessage(taskId, 1, gStringVar4, sub_81AD6E4);
+}
+
+void sub_81AD6E4(u8 taskId)
+{
+    bag_menu_yes_no(taskId, 6, &gUnknown_0861408C);
+}
+
+void sub_81AD6FC(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    bag_menu_remove_money_window();
+    bag_menu_RemoveBagItem_message_window(4);
+    bag_menu_print_cursor_(data[0], 0);
+    set_callback3_to_bag(taskId);
+}
+
+void sub_81AD730(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u8 windowId = bag_menu_add_window(8);
+    
+    sub_81ABCC0(windowId, 1, (itemid_get_market_price(gSpecialVar_ItemId) / 2) * data[8]);
+    bag_menu_AddMoney_window();
+    gTasks[taskId].func = sub_81AD794;
+}
+
+void sub_81AD794(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    if (AdjustQuantityAccordingToDPadInput(&data[8], data[2]) == TRUE)
+    {
+        sub_81ABCC0(gUnknown_0203CE54->unk818, data[8], (itemid_get_market_price(gSpecialVar_ItemId) / 2) * data[8]);
+    }
+    else if (gMain.newKeys & A_BUTTON)
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_remove_window(8);
+        sub_81AD680(taskId);
+    }
+    else if (gMain.newKeys & B_BUTTON)
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_print_cursor_(data[0], 0);
+        bag_menu_remove_money_window();
+        bag_menu_remove_window(8);
+        bag_menu_RemoveBagItem_message_window(4);
+        set_callback3_to_bag(taskId);
+    }
+}
+
+void sub_81AD84C(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    CopyItemName(gSpecialVar_ItemId, gStringVar2);
+    ConvertIntToDecimalStringN(gStringVar1, (itemid_get_market_price(gSpecialVar_ItemId) / 2) * data[8], 0, 6);
+    StringExpandPlaceholders(gStringVar4, gText_TurnedOverVar1ForVar2);
+    DisplayItemMessage(taskId, 1, gStringVar4, sub_81AD8C8);
+}
+
+void sub_81AD8C8(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    u16* scrollPos = &gUnknown_0203CE58.scrollPosition[gUnknown_0203CE58.pocket];
+    u16* cursorPos = &gUnknown_0203CE58.cursorPosition[gUnknown_0203CE58.pocket];
+    
+    PlaySE(SE_REGI);
+    RemoveBagItem(gSpecialVar_ItemId, data[8]);
+    AddMoney(&gSaveBlock1Ptr->money, (itemid_get_market_price(gSpecialVar_ItemId) / 2) * data[8]);
+    sub_81AE6C8(data[0], scrollPos, cursorPos);
+    sub_81AB9A8(gUnknown_0203CE58.pocket);
+    sub_81ABA88(gUnknown_0203CE58.pocket);
+    load_bag_item_list_buffers(gUnknown_0203CE58.pocket);
+    data[0] = ListMenuInit(&gMultiuseListMenuTemplate, *scrollPos, *cursorPos);
+    bag_menu_print_cursor_(data[0], 2);
+    PrintMoneyAmountInMoneyBox(gUnknown_0203CE54->unk819, GetMoney(&gSaveBlock1Ptr->money), 0);
+    gTasks[taskId].func = sub_81AD9C0;
+}
+
+void sub_81AD9C0(u8 taskId)
+{
+    if (gMain.newKeys & (A_BUTTON | B_BUTTON))
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_remove_money_window();
+        bag_menu_inits_lists_menu(taskId);
+    }
+}
+
+void display_deposit_item_ask_str(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    data[8] = 1;
+    if (data[2] == 1)
+    {
+        sub_81ADB14(taskId);
+    }
+    else
+    {
+        CopyItemName(gSpecialVar_ItemId, gStringVar1);
+        StringExpandPlaceholders(gStringVar4, gText_DepositHowManyVar1);
+        FillWindowPixelBuffer(1, 0);
+        bag_menu_print(1, 1, gStringVar4, 3, 1, 0, 0, 0, 0);
+        sub_81ABC3C(7);
+        gTasks[taskId].func = sub_81ADA7C;
+    }
+}
+
+void sub_81ADA7C(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    if (AdjustQuantityAccordingToDPadInput(&data[8], data[2]) == TRUE)
+    {
+        sub_81ABC54(gUnknown_0203CE54->unk817, data[8]);
+    }
+    else if (gMain.newKeys & A_BUTTON)
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_remove_window(7);
+        sub_81ADB14(taskId);
+    }
+    else if (gMain.newKeys & B_BUTTON)
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_print_description_box_text(data[1]);
+        bag_menu_print_cursor_(data[0], 0);
+        bag_menu_remove_window(7);
+        set_callback3_to_bag(taskId);
+    }
+}
+
+void sub_81ADB14(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    FillWindowPixelBuffer(1, 0);
+    if (itemid_is_unique(gSpecialVar_ItemId))
+    {
+        bag_menu_print(1, 1, gText_CantStoreImportantItems, 3, 1, 0, 0, 0, 0);
+        gTasks[taskId].func = sub_81ADC0C;
+    }
+    else if (AddPCItem(gSpecialVar_ItemId, data[8]) == TRUE)
+    {
+        CopyItemName(gSpecialVar_ItemId, gStringVar1);
+        ConvertIntToDecimalStringN(gStringVar2, data[8], 0, 3);
+        StringExpandPlaceholders(gStringVar4, gText_DepositedVar2Var1s);
+        bag_menu_print(1, 1, gStringVar4, 3, 1, 0, 0, 0, 0);
+        gTasks[taskId].func = Task_ActuallyToss;
+    }
+    else
+    {
+        bag_menu_print(1, 1, gText_NoRoomForItems, 3, 1, 0, 0, 0, 0);
+        gTasks[taskId].func = sub_81ADC0C;
+    }
+}
+
+void sub_81ADC0C(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    if (gMain.newKeys & (A_BUTTON | B_BUTTON))
+    {
+        PlaySE(SE_SELECT);
+        bag_menu_print_description_box_text(data[1]);
+        bag_menu_print_cursor_(data[0], 0);
+        set_callback3_to_bag(taskId);
+    }
+}
+
+bool8 IsWallysBag(void)
+{
+    if (gUnknown_0203CE58.location == 10)
+        return TRUE;
+    return FALSE;
+}
+
+void PrepareBagForWallyTutorial(void)
+{
+    u32 i;
+    
+    gUnknown_0203CE80 = AllocZeroed(sizeof(struct TempWallyStruct));
+    memcpy(gUnknown_0203CE80->bagPocket_Items, gSaveBlock1Ptr->bagPocket_Items, sizeof(gSaveBlock1Ptr->bagPocket_Items));
+    memcpy(gUnknown_0203CE80->bagPocket_PokeBalls, gSaveBlock1Ptr->bagPocket_PokeBalls, sizeof(gSaveBlock1Ptr->bagPocket_PokeBalls));
+    gUnknown_0203CE80->pocket = gUnknown_0203CE58.pocket;
+    for (i = 0; i <= 4; i++)
+    {
+        gUnknown_0203CE80->cursorPosition[i] = gUnknown_0203CE58.cursorPosition[i];
+        gUnknown_0203CE80->scrollPosition[i] = gUnknown_0203CE58.scrollPosition[i];
+    }
+    ClearItemSlots(gSaveBlock1Ptr->bagPocket_Items, 30);
+    ClearItemSlots(gSaveBlock1Ptr->bagPocket_PokeBalls, 16);
+    ResetBagScrollPositions();
+}
+
+void RestoreBagAfterWallyTutorial(void)
+{
+    u32 i;
+    
+    memcpy(gSaveBlock1Ptr->bagPocket_Items, gUnknown_0203CE80->bagPocket_Items, sizeof(gUnknown_0203CE80->bagPocket_Items));
+    memcpy(gSaveBlock1Ptr->bagPocket_PokeBalls, gUnknown_0203CE80->bagPocket_PokeBalls, sizeof(gUnknown_0203CE80->bagPocket_PokeBalls));
+    gUnknown_0203CE58.pocket = gUnknown_0203CE80->pocket;
+    for (i = 0; i <= 4; i++)
+    {
+        gUnknown_0203CE58.cursorPosition[i] = gUnknown_0203CE80->cursorPosition[i];
+        gUnknown_0203CE58.scrollPosition[i] = gUnknown_0203CE80->scrollPosition[i];
+    }
+    Free(gUnknown_0203CE80);
+}
+
+void DoWallyTutorialBagMenu(void)
+{
+    PrepareBagForWallyTutorial();
+    AddBagItem(ITEM_POTION, 1);
+    AddBagItem(ITEM_POKE_BALL, 1);
+    GoToBagMenu(10, 0, SetCB2ToReshowScreenAfterMenu2);
+}
+
+void Task_WallyTutorialBagMenu(u8 taskId)
+{
+    s16* data = gTasks[taskId].data;
+    
+    if (!gPaletteFade.active)
+    {
+        switch (data[8])
+        {
+            case 0x66:
+                PlaySE(SE_SELECT);
+                SwitchBagPocket(taskId, 1, 0);
+                data[8]++;
+                break;
+            case 0xCC:
+                PlaySE(SE_SELECT);
+                bag_menu_print_cursor_(data[0], 2);
+                gSpecialVar_ItemId = ITEM_POKE_BALL;
+                sub_81AC644(taskId);
+                data[8]++;
+                break;
+            case 0x132:
+                PlaySE(SE_SELECT);
+                bag_menu_remove_some_window();
+                sub_81AE6C8(data[0], 0, 0);
+                RestoreBagAfterWallyTutorial();
+                unknown_ItemMenu_Confirm(taskId);
+                break;
+            default:
+                data[8]++;
+                break;
+        }
+    }
+}
+
+void unknown_ItemMenu_Show(u8 taskId)
+{
+    gSpecialVar_0x8005 = gSpecialVar_ItemId;
+    gSpecialVar_Result = 1;
+    bag_menu_remove_some_window();
+    unknown_ItemMenu_Confirm(taskId);
+}
+
+void bag_menu_leave_maybe_3(void)
+{
+    gFieldCallback = sub_819FA50;
+    SetMainCallback2(c2_exit_to_overworld_2_switch);
+}
+
+void unknown_ItemMenu_Give2(u8 taskId)
+{
+    RemoveBagItem(gSpecialVar_ItemId, 1);
+    gSpecialVar_Result = 1;
+    bag_menu_remove_some_window();
+    unknown_ItemMenu_Confirm(taskId);
+}
+
+void bag_menu_leave_maybe_2(void)
+{
+    gFieldCallback = sub_818DEF4;
+    SetMainCallback2(c2_exit_to_overworld_2_switch);
+}
+
+void unknown_ItemMenu_Confirm2(u8 taskId)
+{
+    gSpecialVar_Result = 1;
+    bag_menu_remove_some_window();
+    unknown_ItemMenu_Confirm(taskId);
+}
+
+void bag_menu_leave_maybe(void)
+{
+    gFieldCallback = sub_818E564;
+    SetMainCallback2(c2_exit_to_overworld_2_switch);
+}
+
+void bag_menu_print_pocket_names(u8 *pocketName1, u8 *pocketName2)
+{
+    struct WindowTemplate window = {0, 0, 0, 0, 0, 0, 0};
+    u16 windowId;
+    int offset;
+    
+    window.width = 16;
+    window.height = 2;
+    windowId = AddWindow(&window);
+    FillWindowPixelBuffer(windowId, 0);
+    offset = GetStringCenterAlignXOffset(1, pocketName1, 0x40);
+    bag_menu_print(windowId, 1, pocketName1, offset, 1, 0, 0, -1, 1);
+    if (pocketName2)
+    {
+        offset = GetStringCenterAlignXOffset(1, pocketName2, 0x40);
+        bag_menu_print(windowId, 1, pocketName2, offset + 0x40, 1, 0, 0, -1, 1);
+    }
+    CpuCopy32((u8*)GetWindowAttribute(windowId, 7), gUnknown_0203CE54->unk844, 0x400);
+    RemoveWindow(windowId);
+}
+
+void bag_menu_copy_pocket_name_to_window(u32 a)
+{
+    u8 (* r4)[32][32];
+    u8* windowAttribute;
+    int b;
+    if (a > 8)
+        a = 8;
+    r4 = &gUnknown_0203CE54->unk844;
+    windowAttribute = (u8*)GetWindowAttribute(2, 7);
+    CpuCopy32(r4[0][a], windowAttribute, 0x100);
+    b = a + 16;
+    CpuCopy32(r4[0][b], windowAttribute + 0x100, 0x100);
+    CopyWindowToVram(2, 2);
+}
+
+void setup_bag_menu_textboxes(void)
+{
+    u8 i;
+    
+    InitWindows(gUnknown_08614174);
+    DeactivateAllTextPrinters();
+    sub_809882C(0, 1, -32);
+    copy_textbox_border_tile_patterns_to_vram(0, 10, -48);
+    sub_819A2BC(-64, 1);
+    LoadPalette(&gUnknown_0860F074, 0xF0, 0x20);
+    for (i = 0; i < 3; i++)
+    {
+        FillWindowPixelBuffer(i, 0);
+        PutWindowTilemap(i);
+    }
+    schedule_bg_copy_tilemap_to_vram(0);
+    schedule_bg_copy_tilemap_to_vram(1);
+}
+
+void bag_menu_print(u8 a, u8 b, const u8 *str, u8 c, u8 d, u8 e, u8 f, u8 g, u8 h)
+{
+    AddTextPrinterParameterized2(a, b, c, d, e, f, gUnknown_08614164[h], g, str);
+}
+
+u8 sub_81AE124(u8 a)
+{
+    return gUnknown_0203CE54->unk810[a];
+}    
+
+u8 bag_menu_add_window(u8 a)
+{
+    u8 *ptr = &gUnknown_0203CE54->unk810[a];
+    if (*ptr == 0xFF)
+    {
+        *ptr = AddWindow(&gUnknown_086141AC[a]);
+        SetWindowBorderStyle(*ptr, 0, 1, 14);
+        schedule_bg_copy_tilemap_to_vram(1);
+    }
+    return *ptr;
+}
+
+void bag_menu_remove_window(u8 a)
+{
+    u8 *ptr = &gUnknown_0203CE54->unk810[a];
+    if (*ptr != 0xFF)
+    {
+        sub_8198070(*ptr, 0);
+        ClearWindowTilemap(*ptr);
+        RemoveWindow(*ptr);
+        schedule_bg_copy_tilemap_to_vram(1);
+        *ptr = 0xFF;
+    }
+}
+
+u8 AddItemMessageWindow(u8 a)
+{
+    u8 *ptr = &gUnknown_0203CE54->unk810[a];
+    if (*ptr == 0xFF)
+        *ptr = AddWindow(&gUnknown_086141AC[a]);
+    return *ptr;
+}
+
+void bag_menu_RemoveBagItem_message_window(u8 a)
+{
+    u8 *ptr = &gUnknown_0203CE54->unk810[a];
+    if (*ptr != 0xFF)
+    {
+        sub_8197DF8(*ptr, 0);
+        ClearWindowTilemap(*ptr);
+        RemoveWindow(*ptr);
+        schedule_bg_copy_tilemap_to_vram(1);
+        *ptr = 0xFF;
+    }
+}
+
+void bag_menu_yes_no(u8 a, u8 b, const struct YesNoFuncTable *funcTable)
+{
+    CreateYesNoMenuWithCallbacks(a, &gUnknown_086141AC[b], 1, 0, 2, 1, 14, funcTable);
+}
+
+void bag_menu_AddMoney_window(void)
+{
+    u8 windowId = bag_menu_add_window(9);
+    PrintMoneyAmountInMoneyBoxWithBorder(windowId, 1, 14, GetMoney(&gSaveBlock1Ptr->money));
+    AddMoneyLabelObject(19, 11);
+}
+
+void bag_menu_remove_money_window(void)
+{
+    bag_menu_remove_window(9);
+    RemoveMoneyLabelObject();
+}
+
+void bag_menu_prepare_tmhm_move_window(void)
+{
+    FillWindowPixelBuffer(3, 0);
+    blit_move_info_icon(3, 19, 0, 0);
+    blit_move_info_icon(3, 20, 0, 12);
+    blit_move_info_icon(3, 21, 0, 24);
+    blit_move_info_icon(3, 22, 0, 36);
+    CopyWindowToVram(3, 2);
+}
+
+void PrintTMHMMoveData(u16 itemId)
+{
+    u8 i;
+    u16 moveId;
+    const u8* text;
+    
+    FillWindowPixelBuffer(4, 0);
+    if (itemId == ITEM_NONE)
+    {
+        for (i = 0; i < 4; i++)
+            bag_menu_print(4, 1, gText_ThreeDashes, 7, i * 12, 0, 0, -1, 4);
+        CopyWindowToVram(4, 2);
+    }
+    else
+    {
+        moveId = ItemIdToBattleMoveId(itemId);
+        blit_move_info_icon(4, gBattleMoves[moveId].type + 1, 0, 0);
+        if (gBattleMoves[moveId].power <= 1)
+        {
+            text = gText_ThreeDashes;
+        }
+        else
+        {
+            ConvertIntToDecimalStringN(gStringVar1, gBattleMoves[moveId].power, 1, 3);
+            text = gStringVar1;
+        }
+        bag_menu_print(4, 1, text, 7, 12, 0, 0, -1, 4);
+        if (gBattleMoves[moveId].accuracy == 0)
+        {
+            text = gText_ThreeDashes;
+        }
+        else
+        {
+            ConvertIntToDecimalStringN(gStringVar1, gBattleMoves[moveId].accuracy, 1, 3);
+            text = gStringVar1;
+        }
+        bag_menu_print(4, 1, text, 7, 24, 0, 0, -1, 4);
+        ConvertIntToDecimalStringN(gStringVar1, gBattleMoves[moveId].pp, 1, 3);
+        bag_menu_print(4, 1, gStringVar1, 7, 36, 0, 0, -1, 4);
+        CopyWindowToVram(4, 2);
+    }
+}
diff --git a/src/item_use.c b/src/item_use.c
index bcd453660..2e47e6f14 100755
--- a/src/item_use.c
+++ b/src/item_use.c
@@ -113,7 +113,7 @@ void sub_80FE024(u8 taskId);
 void sub_80FE124(u8 taskId);
 void sub_80FE164(u8 taskId);
 
-void DisplayItemMessage(u8 taskId, u8 a, u8* str, void(*callback)(u8 taskId));
+void DisplayItemMessage(u8 taskId, u8 a, const u8* str, void(*callback)(u8 taskId));
 void DisplayItemMessageInBattlePyramid(u8 taskId, u8* str, void(*callback)(u8 taskId));
 void DisplayItemMessageOnField(u8 taskId, u8* str, void(*callback)(u8 taskId));
 void sub_81C6714(u8 taskId);