Merge pull request #111 from AnonymousRandomPerson/main

Decomped some item funcs
2026-09-30 22:27:51 -05:00 · 2025-02-13 00:01:07 -05:00
parent 49360d916c f840173d38
commit 17e01a8be6
30 changed files with 3036 additions and 2965 deletions
--- a/asm/include/main_0200C4CC.inc
+++ b/asm/include/main_0200C4CC.inc
@@ -1,73 +1,30 @@
 #pragma once
-.public _02094C0C
-.public _02094C18
-.public _02094D0C
-.public _02094D20
-.public _02097F34
-.public _02097F50
-.public _02097F58
-.public _02097F68
-.public _02097F6C
-.public _02097F7C
-.public _02097F90
-.public _02097F9C
-.public _02097FAC
-.public _02097FB8
-.public _02097FC4
-.public _02097FE4
-.public _02098038
-.public _02098054
-.public _02098070
-.public _0209808C
-.public _0209809C
-.public _020980AC
-.public _020980B0
-.public _0209E7A6
-.public _020A18BC
-.public _020AF6C4
-.public _020AF6C8
-.public _020AFF88_EU
+.public AllInventoriesZInit
 .public AllKecleonShopsZInit
 .public AllocateTemp1024ByteBufferFromPool
-.public ARM9_UNKNOWN_TABLE__NA_2097FF8
-.public AVAILABLE_ITEMS_IN_GROUP_TABLE
 .public BAG_ITEMS
 .public BAG_ITEMS_PTR_MIRROR
-.public CopyBitsFrom
-.public CopyBitsTo
-.public DrawTextInWindow
 .public DUNGEON_RETURN_STATUS_TABLE
+.public DrawTextInWindow
 .public FormatMoveString
-.public GET_ITEM_NAME_FORMATTED_SPRINTF
-.public GetDungeonGroup
 .public GetDungeonResultString
-.public GetLanguage
+.public GetItemCategoryVeneer
 .public GetStringFromFileVeneer
 .public GetWindow
-.public HandleSir0Translation
 .public InitMoveCheckId
-.public ITEM_DATA_TABLE_PTRS
-.public ITEM_TABLES_PTRS_1
-.public LoadFileFromRom
-.public MemAlloc
-.public MemFree
-.public MONEY_QUANTITY_TABLE
-.public MultiplyByFixedPoint
-.public PointsToZero
+.public LoadItemPspi2n
 .public PreprocessString
-.public RandRangeSafe
+.public RescueInventoryZInit
+.public SetActiveInventoryToMain
+.public SpecialEpisodeInventoryZInit
 .public SpecialEpisodeKecleonShopZInit
-.public strcpy
 .public StringFromId
-.public strncpy
+.public _02094C0C
+.public _02094C18
+.public _0209E7A6
+.public sub_0200D670
 .public sub_0200FD38
 .public sub_0200FD3C
 .public sub_02010590
 .public sub_02011AB8
-.public sub_020238E0
 .public sub_020265A8
-.public sub_02050974
-.public sub_02050990
-.public sub_020509BC
-.public vsprintf
-.public ZInit8
--- a/asm/include/main_0200CAFC.inc
+++ b/asm/include/main_0200CAFC.inc
@@ -0,0 +1,56 @@
+#pragma once
+.public AVAILABLE_ITEMS_IN_GROUP_TABLE
+.public BAG_ITEMS_PTR_MIRROR
+.public CopyBitsFrom
+.public CopyBitsTo
+.public GetDungeonGroup
+.public GetItemActionName
+.public GetItemBuyPrice
+.public GetItemCategory
+.public GetItemMoveId
+.public GetItemName
+.public GetItemPaletteId
+.public GetItemSellPrice
+.public GetLanguage
+.public GetThrownItemQuantityLimit
+.public HandleSir0Translation
+.public ITEM_DATA_TABLE_PTRS
+.public ITEM_TABLES_PTRS_1
+.public IsItemValid
+.public LoadFileFromRom
+.public MONEY_QUANTITY_TABLE
+.public MemAlloc
+.public MemFree
+.public MultiplyByFixedPoint
+.public PointsToZero
+.public RandRangeSafe
+.public ZInit8
+.public _02094D0C
+.public _02094D20
+.public _02097F34
+.public _02097F50
+.public _02097F58
+.public _02097F68
+.public _02097F6C
+.public _02097F7C
+.public _02097F90
+.public _02097F9C
+.public _02097FAC
+.public _02097FB8
+.public _02097FC4
+.public _02097FE4
+.public _02098038
+.public _02098054
+.public _02098070
+.public _020A18BC
+.public _020AF6C4
+.public _020AF6C8
+.public _020AFF88_EU
+.public strcpy
+.public strncpy
+.public sub_0200EB64
+.public sub_020238E0
+.public sub_02050974
+.public sub_02050990
+.public sub_020509BC
+.public vsprintf
--- a/asm/include/main_0200E7E8.inc
+++ b/asm/include/main_0200E7E8.inc
@@ -0,0 +1,3 @@
+#pragma once
+.public GetExclusiveItemOffsetEnsureValid
+.public ITEM_DATA_TABLE_PTRS
--- a/asm/include/main_0200E864.inc
+++ b/asm/include/main_0200E864.inc
@@ -0,0 +1,16 @@
+#pragma once
+.public ARM9_UNKNOWN_TABLE__NA_2097FF8
+.public BAG_ITEMS_PTR_MIRROR
+.public EnsureValidItem
+.public GET_ITEM_NAME_FORMATTED_SPRINTF
+.public ITEM_DATA_TABLE_PTRS
+.public IsItemValid
+.public ItemZInit
+.public SprintfStatic__0200E808_EU
+.public StringFromId
+.public _0209808C
+.public _0209809C
+.public _020980AC
+.public _020980B0
+.public strcpy
+.public vsprintf
--- a/asm/include/main_02054C24.inc
+++ b/asm/include/main_02054C24.inc
@@ -348,6 +348,7 @@
 .public MISSION_MENU_STRING_IDS_2
 .public MISSION_RANK_POINTS
 .public MISSION_STRING_IDS
+.public MissionToWonderMailPassword
 .public MultiplyByFixedPoint
 .public MUNCH_BELT_STAT_BOOST
 .public NO_SEND_ITEM_TABLE
@@ -546,7 +547,6 @@
 .public sub_0204C978
 .public sub_0204CA1C
 .public sub_0204D018
-.public sub_0204DE7C
 .public sub_0204E210
 .public sub_0204E584
 .public sub_0204E6FC
--- a/asm/include/main_020897DC.inc
+++ b/asm/include/main_020897DC.inc
@@ -2121,8 +2121,6 @@
 .public sub_02060680
 .public sub_020606E4
 .public sub_0206074C
-.public sub_02060804
-.public sub_02060904
 .public sub_02072D9C
 .public sub_02072DBC
 .public sub_02072DDC
@@ -2208,5 +2206,7 @@
 .public UpdateSimpleMenu
 .public UpdateTeamSelectionMenu
 .public UpdateTextBox
+.public ValidateLegendaryChallengeMission
+.public ValidateNormalChallengeMission
 .public vsprintf
 .public wcstombs
--- a/asm/include/overlay_29_022DEADC.inc
+++ b/asm/include/overlay_29_022DEADC.inc
@@ -20,6 +20,7 @@
 .public EnemyEvolution
 .public EntityIsValid__022E0354
 .public FadeToBlack
+.public FillMissionDestinationInfo
 .public FIXED_ROOM_REVISIT_OVERRIDES
 .public FreeLoadedAttackSpriteAndMore
 .public FreeTopScreenStatus
@@ -178,7 +179,6 @@
 .public ov29_02346DA4
 .public ov29_02346E48
 .public ov29_023480FC
-.public ov29_023484A0
 .public ov29_02348850
 .public ov29_02348894
 .public ov29_023488C8
--- a/asm/include/overlay_29_022E37DC.inc
+++ b/asm/include/overlay_29_022E37DC.inc
@@ -35,6 +35,7 @@
 .public GetNbFloorsPlusOne
 .public GetNbPrecedingFloors
 .public GetNbRecruited
+.public GetPlayerGender
 .public GetSecondFormIfValid
 .public GetSpriteFileSize
 .public GetSpriteSize
@@ -93,7 +94,6 @@
 .public ov29_022EACCC
 .public ov29_022EACE4
 .public ov29_022ED0F4
-.public ov29_022F42D8
 .public ov29_0230027C
 .public ov29_0230D618
 .public ov29_02339138
--- a/asm/include/overlay_29_023498A0.inc
+++ b/asm/include/overlay_29_023498A0.inc
@@ -36,6 +36,7 @@
 .public GetMonsterPreEvolution
 .public GetName
 .public GetPerformanceFlagWithChecks
+.public GetPlayerGender
 .public GetRandomExplorerMazeMonster
 .public GetRandomSpawnMonsterID
 .public GetSecondFormIfValid
@@ -111,7 +112,6 @@
 .public ov29_022EAF34
 .public ov29_022EAFB0
 .public ov29_022F2FE4
-.public ov29_022F42D8
 .public ov29_022FA3D4
 .public ov29_022FBA54
 .public ov29_022FBBEC
--- a/asm/main_0200C4CC.s
+++ b/asm/main_0200C4CC.s
--- a/asm/main_0200CAFC.s
+++ b/asm/main_0200CAFC.s
--- a/asm/main_0200E7E8.s
+++ b/asm/main_0200E7E8.s
@@ -0,0 +1,21 @@
+	.include "asm/macros.inc"
+	.include "main_0200E7E8.inc"
+
+	.text
+
+	arm_func_start GetExclusiveItemParameter
+GetExclusiveItemParameter: ; 0x0200E7E8
+	stmdb sp!, {r3, lr}
+	bl GetExclusiveItemOffsetEnsureValid
+	ldr r1, _0200E804 ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1, #4]
+#else
+	ldr r1, [r1]
+#endif
+	add r0, r1, r0, lsl #2
+	ldrsh r0, [r0, #2]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200E804: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetExclusiveItemParameter
--- a/asm/main_0200E864.s
+++ b/asm/main_0200E864.s
@@ -0,0 +1,481 @@
+	.include "asm/macros.inc"
+	.include "main_0200E864.inc"
+
+	.text
+
+	arm_func_start GetItemName
+GetItemName: ; 0x0200E864
+	stmdb sp!, {r3, lr}
+	bl EnsureValidItem
+#if defined(EUROPE)
+	add r0, r0, #0x278
+	add r0, r0, #0x1800
+#elif defined(JAPAN)
+	add r0, r0, #0x93
+	add r0, r0, #0xd00
+#else
+	add r0, r0, #0x76
+	add r0, r0, #0x1a00
+#endif
+	mov r0, r0, lsl #0x10
+	mov r0, r0, lsr #0x10
+	bl StringFromId
+	ldmia sp!, {r3, pc}
+	arm_func_end GetItemName
+
+	arm_func_start GetItemNameFormatted
+GetItemNameFormatted: ; 0x0200E884
+#ifdef EUROPE
+#define GET_ITEM_NAME_FORMATTED_SPRINTF SprintfStatic__0200E808_EU
+#else
+#define GET_ITEM_NAME_FORMATTED_SPRINTF SprintfStatic__0200E990
+#endif
+	stmdb sp!, {r4, r5, r6, r7, r8, lr}
+	mov r7, r1
+	mov r8, r0
+	mov r0, r7
+	mov r6, r2
+	mov r5, r3
+	bl EnsureValidItem
+#if defined(EUROPE)
+	add r0, r0, #0x278
+	add r0, r0, #0x1800
+#elif defined(JAPAN)
+	add r0, r0, #0x93
+	add r0, r0, #0xd00
+#else
+	add r0, r0, #0x76
+	add r0, r0, #0x1a00
+#endif
+	mov r0, r0, lsl #0x10
+	mov r0, r0, lsr #0x10
+	bl StringFromId
+	mov r4, r0
+	mov r0, r7
+	bl EnsureValidItem
+	ldr r1, _0200E97C ; =ITEM_DATA_TABLE_PTRS
+	cmp r5, #0
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r1, [r0, #4]
+	bne _0200E8E8
+	add r0, r1, #0xf4
+	and r0, r0, #0xff
+	cmp r0, #2
+	bhi _0200E914
+_0200E8E8:
+	cmp r6, #0
+	beq _0200E904
+	ldr r1, _0200E980 ; =_0209808C
+	mov r0, r8
+	mov r2, r4
+	bl GET_ITEM_NAME_FORMATTED_SPRINTF
+	ldmia sp!, {r4, r5, r6, r7, r8, pc}
+_0200E904:
+	mov r0, r8
+	mov r1, r4
+	bl strcpy
+	ldmia sp!, {r4, r5, r6, r7, r8, pc}
+_0200E914:
+	cmp r1, #0xf
+	bne _0200E94C
+	cmp r6, #0
+	beq _0200E938
+	ldr r1, _0200E984 ; =_0209809C
+	mov r0, r8
+	mov r2, r4
+	bl GET_ITEM_NAME_FORMATTED_SPRINTF
+	ldmia sp!, {r4, r5, r6, r7, r8, pc}
+_0200E938:
+	ldr r1, _0200E988 ; =_020980AC
+	mov r0, r8
+	mov r2, r4
+	bl GET_ITEM_NAME_FORMATTED_SPRINTF
+	ldmia sp!, {r4, r5, r6, r7, r8, pc}
+_0200E94C:
+	cmp r6, #0
+	beq _0200E968
+	ldr r1, _0200E98C ; =_020980B0
+	mov r0, r8
+	mov r2, r4
+	bl GET_ITEM_NAME_FORMATTED_SPRINTF
+	ldmia sp!, {r4, r5, r6, r7, r8, pc}
+_0200E968:
+	ldr r1, _0200E988 ; =_020980AC
+	mov r0, r8
+	mov r2, r4
+	bl GET_ITEM_NAME_FORMATTED_SPRINTF
+	ldmia sp!, {r4, r5, r6, r7, r8, pc}
+	.align 2, 0
+_0200E97C: .word ITEM_DATA_TABLE_PTRS
+_0200E980: .word _0209808C
+_0200E984: .word _0209809C
+_0200E988: .word _020980AC
+_0200E98C: .word _020980B0
+	arm_func_end GetItemNameFormatted
+
+#ifndef EUROPE
+	arm_func_start SprintfStatic__0200E990
+SprintfStatic__0200E990: ; 0x0200E990
+	stmdb sp!, {r0, r1, r2, r3}
+	stmdb sp!, {r3, lr}
+	add r2, sp, #0xc
+	bic r2, r2, #3
+	ldr r1, [sp, #0xc]
+	add r2, r2, #4
+	bl vsprintf
+	ldmia sp!, {r3, lr}
+	add sp, sp, #0x10
+	bx lr
+	arm_func_end SprintfStatic__0200E990
+#endif
+
+	arm_func_start GetItemBuyPrice
+GetItemBuyPrice: ; 0x0200E9B8
+	stmdb sp!, {r3, lr}
+	bl EnsureValidItem
+	ldr r1, _0200E9D4 ; =ITEM_DATA_TABLE_PTRS
+	mov r0, r0, lsl #4
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	ldrh r0, [r1, r0]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200E9D4: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetItemBuyPrice
+
+	arm_func_start GetItemSellPrice
+GetItemSellPrice: ; 0x0200E9D8
+	stmdb sp!, {r3, lr}
+	bl EnsureValidItem
+	ldr r1, _0200E9F4 ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrh r0, [r0, #2]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200E9F4: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetItemSellPrice
+
+	arm_func_start GetItemSpriteId
+GetItemSpriteId: ; 0x0200E9F8
+	stmdb sp!, {r3, lr}
+	bl EnsureValidItem
+	ldr r1, _0200EA14 ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r0, [r0, #5]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200EA14: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetItemSpriteId
+
+	arm_func_start GetItemPaletteId
+GetItemPaletteId: ; 0x0200EA18
+	stmdb sp!, {r3, lr}
+	bl EnsureValidItem
+	ldr r1, _0200EA34 ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r0, [r0, #0xc]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200EA34: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetItemPaletteId
+
+	arm_func_start GetItemActionName
+GetItemActionName: ; 0x0200EA38
+	stmdb sp!, {r3, lr}
+	bl EnsureValidItem
+	ldr r1, _0200EA54 ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r0, [r0, #0xd]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200EA54: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetItemActionName
+
+	arm_func_start GetThrownItemQuantityLimit
+GetThrownItemQuantityLimit: ; 0x0200EA58
+	stmdb sp!, {r4, lr}
+	mov r4, r1
+	bl EnsureValidItem
+	ldr r1, _0200EA7C ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	add r0, r0, r4
+	ldrb r0, [r0, #0xa]
+	ldmia sp!, {r4, pc}
+	.align 2, 0
+_0200EA7C: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetThrownItemQuantityLimit
+
+	arm_func_start GetItemMoveId
+GetItemMoveId: ; 0x0200EA80
+	stmdb sp!, {r3, lr}
+	bl EnsureValidItem
+	ldr r1, _0200EA9C ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrsh r0, [r0, #8]
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200EA9C: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end GetItemMoveId
+
+	arm_func_start TestItemAiFlag
+TestItemAiFlag: ; 0x0200EAA0
+	stmdb sp!, {r3, lr}
+	cmp r1, #0
+	bne _0200EAD4
+	bl EnsureValidItem
+	ldr r1, _0200EB2C ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r0, [r0, #0xe]
+	tst r0, #0x80
+	movne r0, #1
+	moveq r0, #0
+	and r0, r0, #0xff
+	ldmia sp!, {r3, pc}
+_0200EAD4:
+	cmp r1, #1
+	bne _0200EB04
+	bl EnsureValidItem
+	ldr r1, _0200EB2C ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r0, [r0, #0xe]
+	tst r0, #0x40
+	movne r0, #1
+	moveq r0, #0
+	and r0, r0, #0xff
+	ldmia sp!, {r3, pc}
+_0200EB04:
+	bl EnsureValidItem
+	ldr r1, _0200EB2C ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r0, [r0, #0xe]
+	tst r0, #0x20
+	movne r0, #1
+	moveq r0, #0
+	and r0, r0, #0xff
+	ldmia sp!, {r3, pc}
+	.align 2, 0
+_0200EB2C: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end TestItemAiFlag
+
+	arm_func_start IsItemInTimeDarkness
+IsItemInTimeDarkness: ; 0x0200EB30
+	ldr r1, _0200EB54 ; =ITEM_DATA_TABLE_PTRS
+#ifdef EUROPE
+	ldr r1, [r1]
+#else
+	ldr r1, [r1, #4]
+#endif
+	add r0, r1, r0, lsl #4
+	ldrb r0, [r0, #0xe]
+	tst r0, #2
+	movne r0, #1
+	moveq r0, #0
+	and r0, r0, #0xff
+	bx lr
+	.align 2, 0
+_0200EB54: .word ITEM_DATA_TABLE_PTRS
+	arm_func_end IsItemInTimeDarkness
+
+	arm_func_start IsItemValidVeneer
+IsItemValidVeneer: ; 0x0200EB58
+	ldr ip, _0200EB60 ; =IsItemValid
+	bx ip
+	.align 2, 0
+_0200EB60: .word IsItemValid
+	arm_func_end IsItemValidVeneer
+
+	arm_func_start sub_0200EB64
+sub_0200EB64: ; 0x0200EB64
+	ldr r1, _0200EB88 ; =ITEM_DATA_TABLE_PTRS
+	mov r2, r0, lsl #0x1f
+	ldr r1, [r1, #8]
+	mov r0, r0, asr #1
+	ldr r3, [r1, r0, lsl #2]
+	ldr r0, _0200EB8C ; =0x000007FF
+	mov r1, r2, lsr #0x1b
+	and r0, r0, r3, asr r1
+	bx lr
+	.align 2, 0
+_0200EB88: .word ITEM_DATA_TABLE_PTRS
+_0200EB8C: .word 0x000007FF
+	arm_func_end sub_0200EB64
+
+	arm_func_start sub_0200EB90
+sub_0200EB90: ; 0x0200EB90
+	mov ip, #0
+	ldr r2, _0200EBC8 ; =ARM9_UNKNOWN_TABLE__NA_2097FF8
+	b _0200EBB8
+_0200EB9C:
+	add r1, r2, ip, lsl #2
+	ldrsh r1, [r1, #2]
+	mov r3, ip, lsl #2
+	cmp r0, r1
+	ldreqsh r0, [r2, r3]
+	bxeq lr
+	add ip, ip, #1
+_0200EBB8:
+	cmp ip, #0x10
+	blt _0200EB9C
+	mov r0, #0
+	bx lr
+	.align 2, 0
+_0200EBC8: .word ARM9_UNKNOWN_TABLE__NA_2097FF8
+	arm_func_end sub_0200EB90
+
+	arm_func_start SetActiveInventoryToMain
+SetActiveInventoryToMain: ; 0x0200EBCC
+	ldr ip, _0200EBD8 ; =SetActiveInventory
+	mov r0, #0
+	bx ip
+	.align 2, 0
+_0200EBD8: .word SetActiveInventory
+	arm_func_end SetActiveInventoryToMain
+
+	arm_func_start AllInventoriesZInit
+AllInventoriesZInit: ; 0x0200EBDC
+	stmdb sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, lr}
+	mov sl, #0
+	ldr r6, _0200EC44 ; =BAG_ITEMS_PTR_MIRROR
+	mov r7, sl
+	mov fp, sl
+	mov r4, #6
+	mov r5, #0x12c
+_0200EBF8:
+	mul sb, sl, r5
+	mov r8, fp
+_0200EC00:
+	ldr r0, [r6]
+	add r0, r0, sb
+	mla r0, r8, r4, r0
+	bl ItemZInit
+	add r8, r8, #1
+	cmp r8, #0x32
+	blt _0200EC00
+	ldr r0, [r6]
+	add r0, r0, sl, lsl #2
+	add r0, r0, #0x1000
+	add sl, sl, #1
+	str r7, [r0, #0x394]
+	cmp sl, #3
+	blt _0200EBF8
+	mov r0, r7
+	bl SetActiveInventory
+	ldmia sp!, {r3, r4, r5, r6, r7, r8, sb, sl, fp, pc}
+	.align 2, 0
+_0200EC44: .word BAG_ITEMS_PTR_MIRROR
+	arm_func_end AllInventoriesZInit
+
+	arm_func_start SpecialEpisodeInventoryZInit
+SpecialEpisodeInventoryZInit: ; 0x0200EC48
+	stmdb sp!, {r4, r5, r6, lr}
+	ldr r5, _0200EC8C ; =BAG_ITEMS_PTR_MIRROR
+	mov r6, #0
+	mov r4, #6
+_0200EC58:
+	ldr r0, [r5]
+	add r0, r0, #0x12c
+	mla r0, r6, r4, r0
+	bl ItemZInit
+	add r6, r6, #1
+	cmp r6, #0x32
+	blt _0200EC58
+	ldr r0, _0200EC8C ; =BAG_ITEMS_PTR_MIRROR
+	mov r1, #0
+	ldr r0, [r0]
+	add r0, r0, #0x1000
+	str r1, [r0, #0x398]
+	ldmia sp!, {r4, r5, r6, pc}
+	.align 2, 0
+_0200EC8C: .word BAG_ITEMS_PTR_MIRROR
+	arm_func_end SpecialEpisodeInventoryZInit
+
+	arm_func_start RescueInventoryZInit
+RescueInventoryZInit: ; 0x0200EC90
+	stmdb sp!, {r4, r5, r6, lr}
+	ldr r5, _0200ECD4 ; =BAG_ITEMS_PTR_MIRROR
+	mov r6, #0
+	mov r4, #6
+_0200ECA0:
+	ldr r0, [r5]
+	add r0, r0, #0x258
+	mla r0, r6, r4, r0
+	bl ItemZInit
+	add r6, r6, #1
+	cmp r6, #0x32
+	blt _0200ECA0
+	ldr r0, _0200ECD4 ; =BAG_ITEMS_PTR_MIRROR
+	mov r1, #0
+	ldr r0, [r0]
+	add r0, r0, #0x1000
+	str r1, [r0, #0x39c]
+	ldmia sp!, {r4, r5, r6, pc}
+	.align 2, 0
+_0200ECD4: .word BAG_ITEMS_PTR_MIRROR
+	arm_func_end RescueInventoryZInit
+
+	arm_func_start SetActiveInventory
+SetActiveInventory: ; 0x0200ECD8
+	ldr r2, _0200ECF8 ; =BAG_ITEMS_PTR_MIRROR
+	mov r1, #0x12c
+	ldr r3, [r2]
+	strb r0, [r3, #0x388]
+	ldr r2, [r2]
+	mla r1, r0, r1, r2
+	str r1, [r2, #0x384]
+	bx lr
+	.align 2, 0
+_0200ECF8: .word BAG_ITEMS_PTR_MIRROR
+	arm_func_end SetActiveInventory
--- a/asm/main_02034974.s
+++ b/asm/main_02034974.s
@@ -31938,8 +31938,8 @@ _0204DE74: .word WONDER_MAIL_BITS_SWAP
 _0204DE78: .word _0209E264
 	arm_func_end WonderMailPasswordToMission

-	arm_func_start sub_0204DE7C
-sub_0204DE7C: ; 0x0204DE7C
+	arm_func_start MissionToWonderMailPassword
+MissionToWonderMailPassword: ; 0x0204DE7C
 	stmdb sp!, {r4, r5, lr}
 	sub sp, sp, #0x6c
 	mov r2, #0
@@ -31997,7 +31997,7 @@ _0204DF20:
 	.align 2, 0
 _0204DF4C: .word _0209E264
 _0204DF50: .word WONDER_MAIL_BITS_SWAP
-	arm_func_end sub_0204DE7C
+	arm_func_end MissionToWonderMailPassword

 	arm_func_start sub_0204DF54
 sub_0204DF54: ; 0x0204DF54
--- a/asm/main_02054C24.s
+++ b/asm/main_02054C24.s
@@ -14444,8 +14444,8 @@ _020607FC:
 	ldmia sp!, {r3, r4, r5, r6, r7, pc}
 	arm_func_end sub_0206074C

-	arm_func_start sub_02060804
-sub_02060804: ; 0x02060804
+	arm_func_start ValidateNormalChallengeMission
+ValidateNormalChallengeMission: ; 0x02060804
 	stmdb sp!, {r4, r5, r6, r7, r8, lr}
 	mov r8, r0
 	mov r7, r1
@@ -14516,10 +14516,10 @@ _020608E0:
 _020608FC:
 	and r0, r4, #0xff
 	ldmia sp!, {r4, r5, r6, r7, r8, pc}
-	arm_func_end sub_02060804
+	arm_func_end ValidateNormalChallengeMission

-	arm_func_start sub_02060904
-sub_02060904: ; 0x02060904
+	arm_func_start ValidateLegendaryChallengeMission
+ValidateLegendaryChallengeMission: ; 0x02060904
 	stmdb sp!, {r3, lr}
 	ldrb r3, [r0, #0x20]
 	ldrb r2, [r1, #1]
@@ -14548,7 +14548,7 @@ _02060948:
 _02060964:
 	and r0, ip, #0xff
 	ldmia sp!, {r3, pc}
-	arm_func_end sub_02060904
+	arm_func_end ValidateLegendaryChallengeMission

 	arm_func_start sub_0206096C
 sub_0206096C: ; 0x0206096C
@@ -16037,7 +16037,7 @@ sub_02061CC8: ; 0x02061CC8
 	add r0, sp, #4
 	mov r1, r4
 	add sb, sb, #0xd
-	bl sub_0204DE7C
+	bl MissionToWonderMailPassword
 	mov r7, #0
 	mov fp, #0x44
 	add r6, sp, #4
--- a/asm/main_020897DC.s
+++ b/asm/main_020897DC.s
@@ -20337,8 +20337,8 @@ ARM9_UNKNOWN_FUNCTION_TABLE__NA_20A3CF4:
 	.word sub_02060680
 	.word sub_020606E4
 	.word sub_0206074C
-	.word sub_02060804
-	.word sub_02060904
+	.word ValidateNormalChallengeMission
+	.word ValidateLegendaryChallengeMission
 	.global MISSION_BANNED_STORY_MONSTERS
 MISSION_BANNED_STORY_MONSTERS:
 	.byte 0x6D, 0x00, 0x29, 0x00, 0xDD, 0x01, 0x83, 0x01, 0x69, 0x00, 0x71, 0x00, 0x73, 0x00, 0xB2, 0x00
--- a/asm/overlay_29_022DEADC.s
+++ b/asm/overlay_29_022DEADC.s
@@ -273,7 +273,7 @@ _022DEE78:
 	addne r0, r0, #0x4000
 	strneb r1, [r0, #0xda + OV29_022DEBBC_OFFSET]
 _022DEEA4:
-	bl ov29_023484A0
+	bl FillMissionDestinationInfo
 	cmp r4, #1
 	bne _022DEF08
 	ldr r1, _022DEF2C ; =DUNGEON_PTR
--- a/asm/overlay_29_022E37DC.s
+++ b/asm/overlay_29_022E37DC.s
@@ -5890,7 +5890,7 @@ ov29_022E7F94: ; 0x022E7F94
 	strb r0, [r1]
 	bl SetMinimapDataE448
 	bl ov29_022E8104
-	bl ov29_022F42D8
+	bl GetPlayerGender
 	cmp r0, #2
 	ldr r0, _022E8014 ; =TOP_SCREEN_STATUS_PTR
 	moveq r1, #1
@@ -6010,7 +6010,7 @@ InitializeTeamStats: ; 0x022E8130
 	mov r1, #1
 	ldr r0, [r0]
 	strb r1, [r0, #0x24]
-	bl ov29_022F42D8
+	bl GetPlayerGender
 	cmp r0, #2
 	ldr r0, _022E818C ; =TOP_SCREEN_STATUS_PTR
 	moveq r1, #1
--- a/asm/overlay_29_022F05B4.s
+++ b/asm/overlay_29_022F05B4.s
@@ -4429,8 +4429,8 @@ ov29_022F426C: ; 0x022F426C
 _022F42D4: .word DUNGEON_PTR
 	arm_func_end ov29_022F426C

-	arm_func_start ov29_022F42D8
-ov29_022F42D8: ; 0x022F42D8
+	arm_func_start GetPlayerGender
+GetPlayerGender: ; 0x022F42D8
 	stmdb sp!, {r3, lr}
 	bl GetHero
 	cmp r0, #0
@@ -4439,7 +4439,7 @@ ov29_022F42D8: ; 0x022F42D8
 	ldrsh r0, [r0, #4]
 	bl GetMonsterGenderVeneer
 	ldmia sp!, {r3, pc}
-	arm_func_end ov29_022F42D8
+	arm_func_end GetPlayerGender

 	arm_func_start ov29_022F42F8
 ov29_022F42F8: ; 0x022F42F8
--- a/asm/overlay_29_02347BC8.s
+++ b/asm/overlay_29_02347BC8.s
@@ -656,8 +656,8 @@ _02348498: .word ov29_023537C4
 _0234849C: .word ov29_0237C694
 	arm_func_end HandleFloorCard

-	arm_func_start ov29_023484A0
-ov29_023484A0: ; 0x023484A0
+	arm_func_start FillMissionDestinationInfo
+FillMissionDestinationInfo: ; 0x023484A0
 #ifdef JAPAN
 #define OV29_023484A0_OFFSET -0xA4
 #else
@@ -704,7 +704,7 @@ _023484FC:
 #else
 	mov r0, r7
 	mov r1, r8
-	bl ov29_02349790
+	bl GetMissionIfActiveOnFloor
 	movs sb, r0
 	moveq r0, #0
 	beq _02348784
@@ -924,7 +924,7 @@ _023487D4:
 	.align 2, 0
 _02348804: .word DUNGEON_PTR
 _02348808: .word ov10_022C48E4
-	arm_func_end ov29_023484A0
+	arm_func_end FillMissionDestinationInfo

 #ifndef JAPAN
 	arm_func_start ov29_0234880C
@@ -936,7 +936,7 @@ ov29_0234880C: ; 0x0234880C
 _0234881C:
 	mov r0, r5
 	mov r1, r4
-	bl ov29_02349790
+	bl GetMissionIfActiveOnFloor
 	cmp r0, #0
 	movne r0, r4
 	ldmneia sp!, {r3, r4, r5, pc}
@@ -2267,8 +2267,8 @@ _02349788:
 	arm_func_end FloorHasMissionMonster

 #ifndef JAPAN
-	arm_func_start ov29_02349790
-ov29_02349790: ; 0x02349790
+	arm_func_start GetMissionIfActiveOnFloor
+GetMissionIfActiveOnFloor: ; 0x02349790
 	stmdb sp!, {r4, lr}
 	mov r4, r0
 	mov r0, r1
@@ -2283,7 +2283,7 @@ ov29_02349790: ; 0x02349790
 	cmpeq r2, r1
 	movne r0, #0
 	ldmia sp!, {r4, pc}
-	arm_func_end ov29_02349790
+	arm_func_end GetMissionIfActiveOnFloor
 #endif

 	arm_func_start ov29_023497C8
--- a/asm/overlay_29_023498A0.s
+++ b/asm/overlay_29_023498A0.s
@@ -4384,7 +4384,7 @@ SetBothScreensWindowColorToDefault: ; 0x0234CF60
 	bl SetBothScreensWindowsColor
 	ldmia sp!, {r3, pc}
 _0234CF7C:
-	bl ov29_022F42D8
+	bl GetPlayerGender
 	cmp r0, #1
 	bne _0234CF94
 	mov r0, #0
--- a/include/item.h
+++ b/include/item.h
@@ -1,6 +1,14 @@
 #ifndef PMDSKY_ITEM_H
 #define PMDSKY_ITEM_H

+#include "util.h"
+
+#ifdef EUROPE
+#define ITEM_DATA_TABLE_PTRS_INDEX 0
+#else
+#define ITEM_DATA_TABLE_PTRS_INDEX 1
+#endif
+
 // Item ID
 enum item_id {
    ITEM_NOTHING = 0,
@@ -1483,4 +1491,12 @@ struct bag_items {
    /* 0x384 */ struct bag_items_inner *bag_items;
 };

+struct item_data_entry
+{
+    /* 0x0 */ u8 *name;
+    /* 0x4 */ enum item_category category;
+    u8 fill5[0xE - 0x5];
+    /* 0xE */ bool8 valid;
+};
+
 #endif //PMDSKY_ITEM_H
--- a/include/item_util.h
+++ b/include/item_util.h
@@ -0,0 +1,10 @@
+#ifndef PMDSKY_ITEM_UTIL_H
+#define PMDSKY_ITEM_UTIL_H
+
+#include "item.h"
+
+// Likely a linker-generated veneer for GetItemCategory.
+// See https://developer.arm.com/documentation/dui0474/k/image-structure-and-generation/linker-generated-veneers/what-is-a-veneer-
+enum item_category GetItemCategoryVeneer(s16 item_id);
+
+#endif //PMDSKY_ITEM_UTIL_H
--- a/include/item_util_1.h
+++ b/include/item_util_1.h
@@ -0,0 +1,10 @@
+#ifndef PMDSKY_ITEM_UTIL_1_H
+#define PMDSKY_ITEM_UTIL_1_H
+
+#include "util.h"
+
+// Checks if an item is valid given its ID.
+// In particular, checks if the "is valid" flag is set on its item_p.bin entry.
+bool8 IsItemValid(s16 item_id);
+
+#endif //PMDSKY_ITEM_UTIL_1_H
--- a/include/item_util_2.h
+++ b/include/item_util_2.h
@@ -0,0 +1,11 @@
+#ifndef PMDSKY_ITEM_UTIL_2_H
+#define PMDSKY_ITEM_UTIL_2_H
+
+#include "item.h"
+
+// Returns the category of the specified item
+enum item_category GetItemCategory(s16 item_id);
+// Checks if the given item ID is valid (using IsItemValid). If so, return the given item ID. Otherwise, return ITEM_PLAIN_SEED.
+s16 EnsureValidItem(s16 item_id);
+
+#endif //PMDSKY_ITEM_UTIL_2_H
--- a/main.lsf
+++ b/main.lsf
@@ -21,6 +21,12 @@ Static main
 	Object src/directory_file_mngr.o
 	Object src/directory_file.o
 	Object asm/main_0200C4CC.o
+	Object src/item_util.o
+	Object asm/main_0200CAFC.o
+	Object src/item_util_1.o
+	Object asm/main_0200E7E8.o
+	Object src/item_util_2.o
+	Object asm/main_0200E864.o
 	Object src/main_0200ECFC.o
 	Object asm/main_0200ED1C.o
 	Object src/main_02025788.o
--- a/src/dungeon_ai_items.c
+++ b/src/dungeon_ai_items.c
@@ -4,6 +4,7 @@
 #include "dungeon_capabilities_1.h"
 #include "dungeon_util_static.h"
 #include "item.h"
+#include "item_util.h"

 #define NUM_POTENTIAL_ROCK_TARGETS 20

@@ -18,7 +19,6 @@ extern void SetMonsterActionFields(struct action_data *action_pointer, u16 actio
 extern bool8 IqSkillIsEnabled(struct entity *pokemon, u8 iq_skill);
 extern const struct tile *GetTile(s32 x, s32 y);
 extern bool8 TestItemAiFlag(s16 id, s32 aiFlag);
-extern enum item_category GetItemCategoryVeneer(s16 index);
 extern void GetPossibleAiArcItemTargets(struct entity *pokemon, struct item *item, struct position potential_targets[], bool8 ignore_roll_chance);
 extern s32 GetDirectionTowardsPosition(struct position *origin_pos, struct position *target_pos);
 extern struct item *GetItemInfo(struct entity *entity);
--- a/src/item_util.c
+++ b/src/item_util.c
@@ -0,0 +1,7 @@
+#include "item_util.h"
+#include "item_util_2.h"
+
+enum item_category GetItemCategoryVeneer(s16 item_id)
+{
+    return GetItemCategory(item_id);
+}
--- a/src/item_util_1.c
+++ b/src/item_util_1.c
@@ -0,0 +1,12 @@
+#include "item_util_1.h"
+#include "item.h"
+
+extern struct item_data_entry *ITEM_DATA_TABLE_PTRS[3];
+
+bool8 IsItemValid(s16 item_id)
+{
+    if (ITEM_DATA_TABLE_PTRS[ITEM_DATA_TABLE_PTRS_INDEX][item_id].valid & 1)
+        return TRUE;
+
+    return FALSE;
+}
--- a/src/item_util_2.c
+++ b/src/item_util_2.c
@@ -0,0 +1,21 @@
+#include "item_util_2.h"
+#include "item_util_1.h"
+
+extern struct item_data_entry *ITEM_DATA_TABLE_PTRS[3];
+
+enum item_category GetItemCategory(s16 item_id)
+{
+    s16 valid_item_id = EnsureValidItem(item_id);
+    return ITEM_DATA_TABLE_PTRS[ITEM_DATA_TABLE_PTRS_INDEX][valid_item_id].category;
+}
+
+s16 EnsureValidItem(s16 item_id)
+{
+    if (item_id <= 0 || item_id >= 0x578)
+        return ITEM_PLAIN_SEED;
+
+    if (!IsItemValid(item_id))
+        return ITEM_PLAIN_SEED;
+
+    return item_id;
+}