Merge pull request #352 from huderlem/shop

[WIP] Shop

11 files changed, 753 insertions, 1431 deletions

diff --git a/asm/shop.s b/asm/shop.s
index 807237389..56658c4ff 100644
--- a/asm/shop.s
+++ b/asm/shop.s
@@ -5,1404 +5,6 @@
 
 	.text
 
-	thumb_func_start CreateShopMenu
-@ s8 CreateShopMenu(s8 type)
-CreateShopMenu: @ 80DFA78
-	push {r4,r5,lr}
-	sub sp, 0x10
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	bl ScriptContext2_Enable
-	ldr r5, =gUnknown_02039F60
-	strb r4, [r5, 0xF]
-	cmp r4, 0
-	bne _080DFACC
-	ldr r0, =gUnknown_08589A38
-	ldr r1, [r0, 0x4]
-	ldr r0, [r0]
-	str r0, [sp]
-	str r1, [sp, 0x4]
-	ldr r4, =gUnknown_08589A10
-	adds r0, r4, 0
-	movs r1, 0x3
-	bl GetMaxWidthInMenuTable
-	lsls r0, 24
-	ldr r2, =0x00ffffff
-	ldr r1, [sp]
-	ands r1, r2
-	orrs r1, r0
-	str r1, [sp]
-	mov r0, sp
-	bl AddWindow
-	strb r0, [r5, 0xE]
-	str r4, [r5, 0x4]
-	movs r5, 0x3
-	b _080DFAF8
-	.pool
-_080DFACC:
-	ldr r0, =gUnknown_08589A38
-	ldr r1, [r0, 0xC]
-	ldr r0, [r0, 0x8]
-	str r0, [sp, 0x8]
-	str r1, [sp, 0xC]
-	ldr r4, =gUnknown_08589A28
-	adds r0, r4, 0
-	movs r1, 0x2
-	bl GetMaxWidthInMenuTable
-	lsls r0, 24
-	ldr r2, =0x00ffffff
-	ldr r1, [sp, 0x8]
-	ands r1, r2
-	orrs r1, r0
-	str r1, [sp, 0x8]
-	add r0, sp, 0x8
-	bl AddWindow
-	strb r0, [r5, 0xE]
-	str r4, [r5, 0x4]
-	movs r5, 0x2
-_080DFAF8:
-	ldr r4, =gUnknown_02039F60
-	ldrb r0, [r4, 0xE]
-	movs r1, 0
-	bl SetStandardWindowBorderStyle
-	ldrb r0, [r4, 0xE]
-	ldr r2, [r4, 0x4]
-	adds r1, r5, 0
-	bl PrintMenuTable
-	ldrb r0, [r4, 0xE]
-	adds r1, r5, 0
-	movs r2, 0
-	bl InitMenuInUpperLeftCornerPlaySoundWhenAPressed
-	ldrb r0, [r4, 0xE]
-	bl PutWindowTilemap
-	ldrb r0, [r4, 0xE]
-	movs r1, 0x1
-	bl CopyWindowToVram
-	ldr r0, =Task_ShopMenu
-	movs r1, 0x8
-	bl CreateTask
-	lsls r0, 24
-	lsrs r0, 24
-	add sp, 0x10
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end CreateShopMenu
-
-	thumb_func_start SetShopMenuCallback
-@ void SetShopMenuCallback()
-SetShopMenuCallback: @ 80DFB4C
-	ldr r1, =gUnknown_02039F60
-	str r0, [r1]
-	bx lr
-	.pool
-	thumb_func_end SetShopMenuCallback
-
-	thumb_func_start SetShopItemsForSale
-@ int SetShopItemsForSale(s16 *itemsForSale)
-SetShopItemsForSale: @ 80DFB58
-	push {lr}
-	adds r1, r0, 0
-	movs r2, 0
-	ldr r3, =gUnknown_02039F60
-	str r1, [r3, 0x8]
-	strh r2, [r3, 0xC]
-	ldrh r0, [r1]
-	cmp r0, 0
-	beq _080DFB80
-_080DFB6A:
-	ldrh r0, [r3, 0xC]
-	adds r0, 0x1
-	strh r0, [r3, 0xC]
-	adds r0, r2, 0x1
-	lsls r0, 16
-	lsrs r2, r0, 16
-	lsls r0, r2, 1
-	adds r0, r1
-	ldrh r0, [r0]
-	cmp r0, 0
-	bne _080DFB6A
-_080DFB80:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end SetShopItemsForSale
-
-	thumb_func_start Task_ShopMenu
-@ void Task_ShopMenu(u8 taskId)
-Task_ShopMenu: @ 80DFB88
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	adds r5, r4, 0
-	bl Menu_ProcessInputNoWrapAround
-	lsls r0, 24
-	asrs r2, r0, 24
-	movs r0, 0x2
-	negs r0, r0
-	cmp r2, r0
-	beq _080DFBC4
-	adds r0, 0x1
-	cmp r2, r0
-	bne _080DFBB4
-	movs r0, 0x5
-	bl PlaySE
-	adds r0, r4, 0
-	bl HandleShopMenuQuit
-	b _080DFBC4
-_080DFBB4:
-	ldr r0, =gUnknown_02039F60
-	ldr r1, [r0, 0x4]
-	lsls r0, r2, 3
-	adds r0, r1
-	ldr r1, [r0, 0x4]
-	adds r0, r5, 0
-	bl _call_via_r1
-_080DFBC4:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end Task_ShopMenu
-
-	thumb_func_start HandleShopMenuBuy
-@ void HandleShopMenuBuy(u8 taskId)
-HandleShopMenuBuy: @ 80DFBD0
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	ldr r2, =gTasks + 0x8
-	adds r4, r1, r2
-	ldr r3, =CB2_InitBuyMenu
-	lsrs r0, r3, 16
-	strh r0, [r4, 0x10]
-	strh r3, [r4, 0x12]
-	subs r2, 0x8
-	adds r1, r2
-	ldr r0, =Task_GoToBuyOrSellMenu
-	str r0, [r1]
-	movs r0, 0x1
-	movs r1, 0
-	bl FadeScreen
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end HandleShopMenuBuy
-
-	thumb_func_start HandleShopMenuSell
-@ void HandleShopMenuSell(u8 taskId)
-HandleShopMenuSell: @ 80DFC0C
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	ldr r2, =gTasks + 0x8
-	adds r4, r1, r2
-	ldr r3, =CB2_GoToSellMenu
-	lsrs r0, r3, 16
-	strh r0, [r4, 0x10]
-	strh r3, [r4, 0x12]
-	subs r2, 0x8
-	adds r1, r2
-	ldr r0, =Task_GoToBuyOrSellMenu
-	str r0, [r1]
-	movs r0, 0x1
-	movs r1, 0
-	bl FadeScreen
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end HandleShopMenuSell
-
-	thumb_func_start CB2_ExitSellMenu
-@ int CB2_ExitSellMenu()
-CB2_ExitSellMenu: @ 80DFC48
-	push {lr}
-	ldr r0, =gFieldCallback
-	ldr r1, =MapPostLoadHook_ExitBuyOrSellMenu
-	str r1, [r0]
-	ldr r0, =CB2_ReturnToField
-	bl SetMainCallback2
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end CB2_ExitSellMenu
-
-	thumb_func_start HandleShopMenuQuit
-@ void HandleShopMenuQuit(u8 taskId)
-HandleShopMenuQuit: @ 80DFC68
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r5, =gUnknown_02039F60
-	ldrb r0, [r5, 0xE]
-	movs r1, 0x2
-	bl sub_8198070
-	ldrb r0, [r5, 0xE]
-	bl RemoveWindow
-	bl SaveRecordedItemPurchasesForTVShow
-	bl ScriptContext2_Disable
-	adds r0, r4, 0
-	bl DestroyTask
-	ldr r5, [r5]
-	cmp r5, 0
-	beq _080DFC98
-	bl _call_via_r5
-_080DFC98:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end HandleShopMenuQuit
-
-	thumb_func_start Task_GoToBuyOrSellMenu
-@ int Task_GoToBuyOrSellMenu(u8 taskId)
-Task_GoToBuyOrSellMenu: @ 80DFCA4
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r2, r0, 24
-	lsls r0, r2, 2
-	adds r0, r2
-	lsls r0, 3
-	ldr r1, =gTasks + 0x8
-	adds r4, r0, r1
-	ldr r0, =gPaletteFade
-	ldrb r1, [r0, 0x7]
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	bne _080DFCD2
-	adds r0, r2, 0
-	bl DestroyTask
-	ldrh r0, [r4, 0x10]
-	lsls r0, 16
-	ldrh r1, [r4, 0x12]
-	orrs r0, r1
-	bl SetMainCallback2
-_080DFCD2:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end Task_GoToBuyOrSellMenu
-
-	thumb_func_start MapPostLoadHook_ExitBuyOrSellMenu
-@ void MapPostLoadHook_ExitBuyOrSellMenu()
-MapPostLoadHook_ExitBuyOrSellMenu: @ 80DFCE0
-	push {lr}
-	bl pal_fill_black
-	ldr r0, =Task_ExitSellMenu
-	movs r1, 0x8
-	bl CreateTask
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end MapPostLoadHook_ExitBuyOrSellMenu
-
-	thumb_func_start Task_ExitSellMenu
-@ void Task_ExitSellMenu(u8 taskId)
-Task_ExitSellMenu: @ 80DFCF8
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	adds r5, r4, 0
-	bl IsWeatherNotFadingIn
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080DFD36
-	ldr r0, =gUnknown_02039F60
-	ldrb r0, [r0, 0xF]
-	cmp r0, 0x2
-	bne _080DFD2C
-	ldr r1, =gText_CanIHelpWithAnythingElse
-	ldr r2, =ReturnToShopMenuAfterExitingSellMenu
-	adds r0, r4, 0
-	bl DisplayItemMessageOnField
-	b _080DFD36
-	.pool
-_080DFD2C:
-	ldr r1, =gText_AnythingElseICanHelp
-	ldr r2, =ReturnToShopMenuAfterExitingSellMenu
-	adds r0, r5, 0
-	bl DisplayItemMessageOnField
-_080DFD36:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end Task_ExitSellMenu
-
-	thumb_func_start ReturnToShopMenuAfterExitingSellMenu
-@ void ReturnToShopMenuAfterExitingSellMenu(u8 taskId)
-ReturnToShopMenuAfterExitingSellMenu: @ 80DFD44
-	push {r4,lr}
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r0, =gUnknown_02039F60
-	ldrb r0, [r0, 0xF]
-	bl CreateShopMenu
-	adds r0, r4, 0
-	bl DestroyTask
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end ReturnToShopMenuAfterExitingSellMenu
-
-	thumb_func_start CB2_BuyMenu
-@ void CB2_BuyMenu()
-CB2_BuyMenu: @ 80DFD64
-	push {lr}
-	bl RunTasks
-	bl AnimateSprites
-	bl BuildOamBuffer
-	bl do_scheduled_bg_tilemap_copies_to_vram
-	bl UpdatePaletteFade
-	pop {r0}
-	bx r0
-	thumb_func_end CB2_BuyMenu
-
-	thumb_func_start VBlankCB_BuyMenu
-@ void VBlankCB_BuyMenu()
-VBlankCB_BuyMenu: @ 80DFD80
-	push {lr}
-	bl LoadOam
-	bl ProcessSpriteCopyRequests
-	bl TransferPlttBuffer
-	pop {r0}
-	bx r0
-	thumb_func_end VBlankCB_BuyMenu
-
-	thumb_func_start CB2_InitBuyMenu
-@ void CB2_InitBuyMenu()
-CB2_InitBuyMenu: @ 80DFD94
-	push {r4,r5,lr}
-	sub sp, 0xC
-	ldr r0, =gMain
-	movs r1, 0x87
-	lsls r1, 3
-	adds r5, r0, r1
-	ldrb r4, [r5]
-	cmp r4, 0
-	beq _080DFE20
-	cmp r4, 0x1
-	bne _080DFDAC
-	b _080DFEE4
-_080DFDAC:
-	bl BuyMenuDrawGraphics
-	bl BuyMenuAddScrollIndicatorArrows
-	ldr r0, =Task_BuyMenu
-	movs r1, 0x8
-	bl CreateTask
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r0, =gMultiuseListMenuTemplate
-	movs r1, 0
-	movs r2, 0
-	bl ListMenuInit
-	ldr r2, =gTasks
-	lsls r1, r4, 2
-	adds r1, r4
-	lsls r1, 3
-	adds r1, r2
-	lsls r0, 24
-	lsrs r0, 24
-	movs r5, 0
-	strh r0, [r1, 0x16]
-	movs r4, 0x1
-	negs r4, r4
-	adds r0, r4, 0
-	movs r1, 0x10
-	movs r2, 0
-	bl BlendPalettes
-	str r5, [sp]
-	adds r0, r4, 0
-	movs r1, 0
-	movs r2, 0x10
-	movs r3, 0
-	bl BeginNormalPaletteFade
-	ldr r0, =VBlankCB_BuyMenu
-	bl SetVBlankCallback
-	ldr r0, =CB2_BuyMenu
-	bl SetMainCallback2
-	b _080DFEF4
-	.pool
-_080DFE20:
-	bl SetVBlankHBlankCallbacksToNull
-	str r4, [sp, 0x8]
-	movs r1, 0xE0
-	lsls r1, 19
-	ldr r2, =0x01000100
-	add r0, sp, 0x8
-	bl CpuFastSet
-	bl ScanlineEffect_Stop
-	bl reset_temp_tile_data_buffers
-	bl FreeAllSpritePalettes
-	bl ResetPaletteFade
-	bl ResetSpriteData
-	bl ResetTasks
-	bl clear_scheduled_bg_copies_to_vram
-	ldr r4, =gUnknown_02039F70
-	ldr r0, =0x000020b0
-	bl AllocZeroed
-	str r0, [r4]
-	ldr r1, =0x0000200b
-	adds r0, r1
-	movs r1, 0xFF
-	strb r1, [r0]
-	ldr r0, [r4]
-	ldr r1, =0x0000200d
-	adds r0, r1
-	movs r1, 0x1
-	negs r1, r1
-	strb r1, [r0]
-	ldr r0, [r4]
-	ldr r1, =0x0000200e
-	adds r0, r1
-	movs r1, 0x1
-	negs r1, r1
-	strb r1, [r0]
-	bl BuyMenuBuildListMenuTemplate
-	bl BuyMenuInitBgs
-	movs r4, 0x20
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x3
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect_Palette0
-	bl BuyMenuInitWindows
-	bl BuyMenuDecompressBgGraphics
-	b _080DFEEE
-	.pool
-_080DFEE4:
-	bl free_temp_tile_data_buffers_if_possible
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DFEF4
-_080DFEEE:
-	ldrb r0, [r5]
-	adds r0, 0x1
-	strb r0, [r5]
-_080DFEF4:
-	add sp, 0xC
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end CB2_InitBuyMenu
-
-	thumb_func_start BuyMenuFreeMemory
-@ void BuyMenuFreeMemory()
-BuyMenuFreeMemory: @ 80DFEFC
-	push {lr}
-	ldr r0, =gUnknown_02039F70
-	ldr r0, [r0]
-	bl Free
-	ldr r0, =gUnknown_02039F74
-	ldr r0, [r0]
-	bl Free
-	ldr r0, =gUnknown_02039F78
-	ldr r0, [r0]
-	bl Free
-	bl FreeAllWindowBuffers
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuFreeMemory
-
-	thumb_func_start BuyMenuBuildListMenuTemplate
-@ void BuyMenuBuildListMenuTemplate()
-BuyMenuBuildListMenuTemplate: @ 80DFF2C
-	push {r4-r7,lr}
-	ldr r7, =gUnknown_02039F74
-	ldr r4, =gUnknown_02039F60
-	ldrh r0, [r4, 0xC]
-	adds r0, 0x1
-	lsls r0, 3
-	bl Alloc
-	str r0, [r7]
-	ldr r5, =gUnknown_02039F78
-	ldrh r0, [r4, 0xC]
-	adds r0, 0x1
-	lsls r0, 4
-	bl Alloc
-	str r0, [r5]
-	movs r6, 0
-	ldrh r0, [r4, 0xC]
-	cmp r6, r0
-	bcs _080DFF78
-_080DFF54:
-	lsls r1, r6, 3
-	ldr r0, [r7]
-	adds r0, r1
-	ldr r2, [r4, 0x8]
-	lsls r1, r6, 1
-	adds r1, r2
-	ldrh r1, [r1]
-	lsls r3, r6, 4
-	ldr r2, [r5]
-	adds r2, r3
-	bl BuyMenuSetListEntry
-	adds r0, r6, 0x1
-	lsls r0, 16
-	lsrs r6, r0, 16
-	ldrh r2, [r4, 0xC]
-	cmp r6, r2
-	bcc _080DFF54
-_080DFF78:
-	ldr r4, =gUnknown_02039F78
-	lsls r5, r6, 4
-	ldr r0, [r4]
-	adds r0, r5
-	ldr r1, =gText_Cancel2
-	bl StringCopy
-	ldr r2, =gUnknown_02039F74
-	ldr r0, [r2]
-	lsls r1, r6, 3
-	adds r1, r0
-	ldr r0, [r4]
-	adds r0, r5
-	str r0, [r1]
-	movs r0, 0x2
-	negs r0, r0
-	str r0, [r1, 0x4]
-	ldr r3, =gMultiuseListMenuTemplate
-	adds r1, r3, 0
-	ldr r0, =gUnknown_08589A48
-	ldm r0!, {r4-r6}
-	stm r1!, {r4-r6}
-	ldm r0!, {r4-r6}
-	stm r1!, {r4-r6}
-	ldr r0, [r2]
-	str r0, [r3]
-	ldr r0, =gUnknown_02039F60
-	ldrh r0, [r0, 0xC]
-	adds r1, r0, 0x1
-	strh r1, [r3, 0xC]
-	lsls r0, r1, 16
-	lsrs r0, 16
-	cmp r0, 0x8
-	bls _080DFFDC
-	movs r0, 0x8
-	strh r0, [r3, 0xE]
-	b _080DFFDE
-	.pool
-_080DFFDC:
-	strh r1, [r3, 0xE]
-_080DFFDE:
-	ldr r0, =gUnknown_02039F70
-	ldr r0, [r0]
-	ldr r1, =gMultiuseListMenuTemplate
-	ldrh r1, [r1, 0xE]
-	ldr r2, =0x00002004
-	adds r0, r2
-	strh r1, [r0]
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuBuildListMenuTemplate
-
-	thumb_func_start BuyMenuSetListEntry
-@ void BuyMenuSetListEntry(struct ListMenuEntry *entry, u16 code, u8 *str)
-BuyMenuSetListEntry: @ 80E0000
-	push {r4-r6,lr}
-	adds r6, r0, 0
-	adds r5, r2, 0
-	lsls r1, 16
-	lsrs r4, r1, 16
-	ldr r0, =gUnknown_02039F60
-	ldrb r0, [r0, 0xF]
-	cmp r0, 0
-	bne _080E0020
-	adds r0, r4, 0
-	adds r1, r5, 0
-	bl CopyItemName
-	b _080E002C
-	.pool
-_080E0020:
-	lsls r1, r4, 5
-	ldr r0, =gDecorations + 1
-	adds r1, r0
-	adds r0, r5, 0
-	bl StringCopy
-_080E002C:
-	str r5, [r6]
-	str r4, [r6, 0x4]
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuSetListEntry
-
-	thumb_func_start BuyMenuPrintItemDescriptionAndShowItemIcon
-@ void BuyMenuPrintItemDescriptionAndShowItemIcon(s32 menuEntryCode, bool8 isInitialSelection, struct ListMenu *listMenu)
-BuyMenuPrintItemDescriptionAndShowItemIcon: @ 80E003C
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x8
-	adds r7, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	cmp r1, 0x1
-	beq _080E0054
-	movs r0, 0x5
-	bl PlaySE
-_080E0054:
-	movs r0, 0x2
-	negs r0, r0
-	cmp r7, r0
-	beq _080E0078
-	lsls r4, r7, 16
-	lsrs r0, r4, 16
-	ldr r1, =gUnknown_02039F70
-	ldr r1, [r1]
-	ldr r2, =0x0000200c
-	adds r1, r2
-	ldrb r1, [r1]
-	bl BuyMenuAddItemIcon
-	b _080E008A
-	.pool
-_080E0078:
-	ldr r0, =0x0000ffff
-	ldr r1, =gUnknown_02039F70
-	ldr r1, [r1]
-	ldr r2, =0x0000200c
-	adds r1, r2
-	ldrb r1, [r1]
-	bl BuyMenuAddItemIcon
-	lsls r4, r7, 16
-_080E008A:
-	lsrs r4, 16
-	mov r8, r4
-	ldr r6, =gUnknown_02039F70
-	ldr r0, [r6]
-	ldr r5, =0x0000200c
-	adds r0, r5
-	ldrb r0, [r0]
-	movs r4, 0x1
-	adds r1, r4, 0
-	eors r1, r0
-	mov r0, r8
-	bl BuyMenuRemoveItemIcon
-	ldr r1, [r6]
-	adds r1, r5
-	ldrb r0, [r1]
-	eors r0, r4
-	strb r0, [r1]
-	movs r0, 0x2
-	negs r0, r0
-	cmp r7, r0
-	beq _080E00E8
-	ldr r0, =gUnknown_02039F60
-	ldrb r0, [r0, 0xF]
-	cmp r0, 0
-	bne _080E00D8
-	mov r0, r8
-	bl ItemId_GetDescription
-	adds r4, r0, 0
-	b _080E00EA
-	.pool
-_080E00D8:
-	ldr r0, =gDecorations
-	lsls r1, r7, 5
-	adds r0, 0x18
-	adds r1, r0
-	ldr r4, [r1]
-	b _080E00EA
-	.pool
-_080E00E8:
-	ldr r4, =gText_QuitShopping
-_080E00EA:
-	movs r0, 0x2
-	movs r1, 0
-	bl FillWindowPixelBuffer
-	movs r0, 0
-	str r0, [sp]
-	str r0, [sp, 0x4]
-	movs r0, 0x2
-	adds r1, r4, 0
-	movs r2, 0x3
-	movs r3, 0x1
-	bl BuyMenuPrint
-	add sp, 0x8
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuPrintItemDescriptionAndShowItemIcon
-
-	thumb_func_start BuyMenuPrintPriceInList
-@ void BuyMenuPrintPriceInList(u8 windowId, s32 menuEntryCode, u8 y)
-BuyMenuPrintPriceInList: @ 80E0114
-	push {r4-r7,lr}
-	sub sp, 0x14
-	lsls r0, 24
-	lsrs r6, r0, 24
-	lsls r2, 24
-	lsrs r7, r2, 24
-	movs r0, 0x2
-	negs r0, r0
-	cmp r1, r0
-	beq _080E01AC
-	ldr r0, =gUnknown_02039F60
-	ldrb r0, [r0, 0xF]
-	cmp r0, 0
-	bne _080E0164
-	ldr r5, =gStringVar1
-	lsls r0, r1, 16
-	lsrs r0, 16
-	bl ItemId_GetPrice
-	adds r4, r0, 0
-	movs r0, 0x1
-	bl GetPriceReduction
-	lsls r4, 16
-	lsrs r4, 16
-	lsls r0, 24
-	lsrs r0, 24
-	asrs r4, r0
-	adds r0, r5, 0
-	adds r1, r4, 0
-	movs r2, 0
-	movs r3, 0x5
-	bl ConvertIntToDecimalStringN
-	b _080E0176
-	.pool
-_080E0164:
-	ldr r0, =gStringVar1
-	ldr r2, =gDecorations
-	lsls r1, 5
-	adds r1, r2
-	ldrh r1, [r1, 0x14]
-	movs r2, 0
-	movs r3, 0x5
-	bl ConvertIntToDecimalStringN
-_080E0176:
-	ldr r4, =gStringVar4
-	ldr r1, =gText_PokedollarVar1
-	adds r0, r4, 0
-	bl StringExpandPlaceholders
-	movs r0, 0x7
-	adds r1, r4, 0
-	movs r2, 0x78
-	bl GetStringRightAlignXOffset
-	adds r2, r0, 0
-	lsls r2, 24
-	lsrs r2, 24
-	movs r0, 0
-	str r0, [sp]
-	str r0, [sp, 0x4]
-	ldr r0, =gUnknown_08589AB3
-	str r0, [sp, 0x8]
-	movs r0, 0x1
-	negs r0, r0
-	str r0, [sp, 0xC]
-	str r4, [sp, 0x10]
-	adds r0, r6, 0
-	movs r1, 0x7
-	adds r3, r7, 0
-	bl AddTextPrinterParameterized4
-_080E01AC:
-	add sp, 0x14
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuPrintPriceInList
-
-	thumb_func_start BuyMenuAddScrollIndicatorArrows
-@ void BuyMenuAddScrollIndicatorArrows()
-BuyMenuAddScrollIndicatorArrows: @ 80E01C8
-	push {r4,r5,lr}
-	sub sp, 0x10
-	ldr r5, =gUnknown_02039F70
-	ldr r2, [r5]
-	ldr r4, =0x0000200b
-	adds r0, r2, r4
-	ldrb r0, [r0]
-	cmp r0, 0xFF
-	bne _080E0206
-	ldr r0, =gUnknown_02039F60
-	ldrh r1, [r0, 0xC]
-	adds r0, r1, 0x1
-	cmp r0, 0x8
-	ble _080E0206
-	subs r0, r1, 0x7
-	str r0, [sp]
-	ldr r0, =0x00000834
-	str r0, [sp, 0x4]
-	str r0, [sp, 0x8]
-	ldr r1, =0x00002008
-	adds r0, r2, r1
-	str r0, [sp, 0xC]
-	movs r0, 0x2
-	movs r1, 0xAC
-	movs r2, 0xC
-	movs r3, 0x94
-	bl AddScrollIndicatorArrowPairParameterized
-	ldr r1, [r5]
-	adds r1, r4
-	strb r0, [r1]
-_080E0206:
-	add sp, 0x10
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuAddScrollIndicatorArrows
-
-	thumb_func_start BuyMenuRemoveScrollIndicatorArrows
-@ void BuyMenuRemoveScrollIndicatorArrows()
-BuyMenuRemoveScrollIndicatorArrows: @ 80E0224
-	push {r4,lr}
-	ldr r4, =gUnknown_02039F70
-	ldr r0, [r4]
-	ldr r2, =0x0000200b
-	adds r1, r0, r2
-	ldrb r0, [r1]
-	cmp r0, 0xFF
-	beq _080E0242
-	bl RemoveScrollIndicatorArrowPair
-	ldr r0, [r4]
-	ldr r1, =0x0000200b
-	adds r0, r1
-	movs r1, 0xFF
-	strb r1, [r0]
-_080E0242:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuRemoveScrollIndicatorArrows
-
-	thumb_func_start BuyMenuPrintCursor
-@ void BuyMenuPrintCursor(u8 taskId, u8 colorSetId)
-BuyMenuPrintCursor: @ 80E0250
-	push {r4,lr}
-	sub sp, 0x8
-	adds r4, r1, 0
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r4, 24
-	lsrs r4, 24
-	bl ListMenuGetYCoordForPrintingArrowCursor
-	adds r3, r0, 0
-	lsls r3, 24
-	lsrs r3, 24
-	ldr r1, =gText_SelectorArrow2
-	movs r0, 0
-	str r0, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0x1
-	movs r2, 0
-	bl BuyMenuPrint
-	add sp, 0x8
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuPrintCursor
-
-	thumb_func_start BuyMenuAddItemIcon
-@ void BuyMenuAddItemIcon(u16 id, u8 iconSlot)
-BuyMenuAddItemIcon: @ 80E0284
-	push {r4,lr}
-	sub sp, 0x8
-	lsls r0, 16
-	lsrs r2, r0, 16
-	lsls r1, 24
-	lsrs r3, r1, 24
-	ldr r0, =gUnknown_02039F70
-	ldr r4, =0x0000200d
-	adds r1, r3, r4
-	ldr r0, [r0]
-	adds r4, r0, r1
-	ldrb r0, [r4]
-	cmp r0, 0xFF
-	bne _080E0310
-	ldr r0, =gUnknown_02039F60
-	ldrb r0, [r0, 0xF]
-	cmp r0, 0
-	beq _080E02AE
-	ldr r0, =0x0000ffff
-	cmp r2, r0
-	bne _080E02F0
-_080E02AE:
-	ldr r0, =0x0000083e
-	adds r1, r3, r0
-	adds r0, r1, 0
-	bl AddItemIconSprite
-	lsls r0, 24
-	lsrs r2, r0, 24
-	cmp r2, 0x40
-	beq _080E0310
-	strb r2, [r4]
-	ldr r1, =gSprites
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r1
-	movs r1, 0x18
-	strh r1, [r0, 0x24]
-	movs r1, 0x58
-	strh r1, [r0, 0x26]
-	b _080E0310
-	.pool
-_080E02F0:
-	lsls r0, r2, 24
-	lsrs r0, 24
-	ldr r2, =0x0000083e
-	adds r1, r3, r2
-	str r1, [sp]
-	str r1, [sp, 0x4]
-	movs r1, 0x14
-	movs r2, 0x54
-	movs r3, 0x1
-	bl AddDecorationIconObject
-	lsls r0, 24
-	lsrs r2, r0, 24
-	cmp r2, 0x40
-	beq _080E0310
-	strb r2, [r4]
-_080E0310:
-	add sp, 0x8
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuAddItemIcon
-
-	thumb_func_start BuyMenuRemoveItemIcon
-@ void BuyMenuRemoveItemIcon(u16 id, u8 iconSlot)
-BuyMenuRemoveItemIcon: @ 80E031C
-	push {r4,r5,lr}
-	lsls r1, 24
-	lsrs r4, r1, 24
-	ldr r0, =gUnknown_02039F70
-	ldr r2, =0x0000200d
-	adds r1, r4, r2
-	ldr r0, [r0]
-	adds r5, r0, r1
-	ldrb r0, [r5]
-	cmp r0, 0xFF
-	beq _080E0356
-	ldr r0, =0x0000083e
-	adds r4, r0
-	adds r0, r4, 0
-	bl FreeSpriteTilesByTag
-	adds r0, r4, 0
-	bl FreeSpritePaletteByTag
-	ldrb r1, [r5]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, =gSprites
-	adds r0, r1
-	bl DestroySprite
-	movs r0, 0xFF
-	strb r0, [r5]
-_080E0356:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuRemoveItemIcon
-
-	thumb_func_start BuyMenuInitBgs
-@ void BuyMenuInitBgs()
-BuyMenuInitBgs: @ 80E036C
-	push {r4,lr}
-	movs r0, 0
-	bl ResetBgsAndClearDma3BusyFlags
-	ldr r1, =gUnknown_08589A60
-	movs r0, 0
-	movs r2, 0x4
-	bl InitBgsFromTemplates
-	ldr r4, =gUnknown_02039F70
-	ldr r1, [r4]
-	movs r0, 0x80
-	lsls r0, 4
-	adds r1, r0
-	movs r0, 0x1
-	bl SetBgTilemapBuffer
-	ldr r1, [r4]
-	movs r0, 0xC0
-	lsls r0, 5
-	adds r1, r0
-	movs r0, 0x2
-	bl SetBgTilemapBuffer
-	ldr r1, [r4]
-	movs r0, 0x80
-	lsls r0, 5
-	adds r1, r0
-	movs r0, 0x3
-	bl SetBgTilemapBuffer
-	movs r0, 0x10
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x12
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x14
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x16
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x18
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x1A
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x1C
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x1E
-	movs r1, 0
-	bl SetGpuReg
-	movs r0, 0x50
-	movs r1, 0
-	bl SetGpuReg
-	movs r1, 0x82
-	lsls r1, 5
-	movs r0, 0
-	bl SetGpuReg
-	movs r0, 0
-	bl ShowBg
-	movs r0, 0x1
-	bl ShowBg
-	movs r0, 0x2
-	bl ShowBg
-	movs r0, 0x3
-	bl ShowBg
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuInitBgs
-
-	thumb_func_start BuyMenuDecompressBgGraphics
-@ void BuyMenuDecompressBgGraphics()
-BuyMenuDecompressBgGraphics: @ 80E0424
-	push {lr}
-	sub sp, 0x4
-	ldr r1, =gBuyMenuFrame_Gfx
-	movs r2, 0xE8
-	lsls r2, 2
-	ldr r3, =0x000003e3
-	movs r0, 0
-	str r0, [sp]
-	movs r0, 0x1
-	bl decompress_and_copy_tile_data_to_vram
-	ldr r0, =gBuyMenuFrame_Tilemap
-	ldr r1, =gUnknown_02039F70
-	ldr r1, [r1]
-	bl LZDecompressWram
-	ldr r0, =gMenuMoneyPal
-	movs r1, 0xC0
-	movs r2, 0x20
-	bl LoadCompressedPalette
-	add sp, 0x4
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuDecompressBgGraphics
-
-	thumb_func_start BuyMenuInitWindows
-@ void BuyMenuInitWindows()
-BuyMenuInitWindows: @ 80E0468
-	push {lr}
-	ldr r0, =gUnknown_08589A70
-	bl InitWindows
-	bl DeactivateAllTextPrinters
-	movs r0, 0
-	movs r1, 0x1
-	movs r2, 0xD0
-	bl LoadUserWindowBorderGfx
-	movs r0, 0
-	movs r1, 0xA
-	movs r2, 0xE0
-	bl LoadMessageBoxGfx
-	movs r0, 0
-	bl PutWindowTilemap
-	movs r0, 0x1
-	bl PutWindowTilemap
-	movs r0, 0x2
-	bl PutWindowTilemap
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuInitWindows
-
-	thumb_func_start BuyMenuPrint
-@ void BuyMenuPrint(u8 windowId, u8 *str, u8 x, u8 y, u8 speed, u8 colorSetId)
-BuyMenuPrint: @ 80E04A4
-	push {r4-r6,lr}
-	sub sp, 0x14
-	ldr r6, [sp, 0x24]
-	ldr r5, [sp, 0x28]
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r2, 24
-	lsrs r2, 24
-	lsls r3, 24
-	lsrs r3, 24
-	lsls r5, 24
-	lsrs r5, 24
-	movs r4, 0
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	lsls r4, r5, 1
-	adds r4, r5
-	ldr r5, =gUnknown_08589AB0
-	adds r4, r5
-	str r4, [sp, 0x8]
-	lsls r6, 24
-	asrs r6, 24
-	str r6, [sp, 0xC]
-	str r1, [sp, 0x10]
-	movs r1, 0x1
-	bl AddTextPrinterParameterized4
-	add sp, 0x14
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuPrint
-
-	thumb_func_start BuyMenuDisplayMessage
-@ void BuyMenuDisplayMessage(u8 taskId, u8 *str, void ( *callback)(u8 taskId))
-BuyMenuDisplayMessage: @ 80E04E8
-	push {r4-r6,lr}
-	sub sp, 0x10
-	adds r4, r0, 0
-	adds r5, r1, 0
-	adds r6, r2, 0
-	lsls r4, 24
-	lsrs r4, 24
-	bl GetPlayerTextSpeed
-	lsls r0, 24
-	lsrs r0, 24
-	movs r1, 0x1
-	str r1, [sp]
-	str r0, [sp, 0x4]
-	str r5, [sp, 0x8]
-	str r6, [sp, 0xC]
-	adds r0, r4, 0
-	movs r1, 0x5
-	movs r2, 0xA
-	movs r3, 0xE
-	bl DisplayMessageAndContinueTask
-	movs r0, 0
-	bl schedule_bg_copy_tilemap_to_vram
-	add sp, 0x10
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	thumb_func_end BuyMenuDisplayMessage
-
-	thumb_func_start BuyMenuDrawGraphics
-@ void BuyMenuDrawGraphics()
-BuyMenuDrawGraphics: @ 80E0524
-	push {lr}
-	bl BuyMenuDrawMapGraphics
-	bl BuyMenuCopyMenuBgToBg1TilemapBuffer
-	movs r0, 0x13
-	movs r1, 0xB
-	bl AddMoneyLabelObject
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	movs r1, 0x92
-	lsls r1, 3
-	adds r0, r1
-	bl GetMoney
-	adds r3, r0, 0
-	movs r0, 0
-	movs r1, 0x1
-	movs r2, 0xD
-	bl PrintMoneyAmountInMoneyBoxWithBorder
-	movs r0, 0
-	bl schedule_bg_copy_tilemap_to_vram
-	movs r0, 0x1
-	bl schedule_bg_copy_tilemap_to_vram
-	movs r0, 0x2
-	bl schedule_bg_copy_tilemap_to_vram
-	movs r0, 0x3
-	bl schedule_bg_copy_tilemap_to_vram
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuDrawGraphics
-
-	thumb_func_start BuyMenuDrawMapGraphics
-@ void BuyMenuDrawMapGraphics()
-BuyMenuDrawMapGraphics: @ 80E0570
-	push {lr}
-	bl BuyMenuCollectEventObjectData
-	bl BuyMenuDrawEventObjects
-	bl BuyMenuDrawMapBg
-	pop {r0}
-	bx r0
-	thumb_func_end BuyMenuDrawMapGraphics
-
-	thumb_func_start BuyMenuDrawMapBg
-@ void BuyMenuDrawMapBg()
-BuyMenuDrawMapBg: @ 80E0584
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0x4
-	ldr r0, =gMapHeader
-	ldr r0, [r0]
-	mov r9, r0
-	mov r4, sp
-	adds r4, 0x2
-	mov r0, sp
-	adds r1, r4, 0
-	bl GetXYCoordsOneStepInFrontOfPlayer
-	mov r1, sp
-	mov r0, sp
-	ldrh r0, [r0]
-	subs r0, 0x4
-	strh r0, [r1]
-	ldrh r0, [r4]
-	subs r0, 0x4
-	strh r0, [r4]
-	movs r1, 0
-	mov r10, r4
-_080E05B6:
-	movs r4, 0
-	lsls r7, r1, 16
-	asrs r0, r7, 16
-	mov r8, r0
-_080E05BE:
-	mov r0, sp
-	movs r1, 0
-	ldrsh r0, [r0, r1]
-	lsls r4, 16
-	asrs r5, r4, 16
-	adds r0, r5
-	mov r2, r10
-	movs r3, 0
-	ldrsh r1, [r2, r3]
-	add r1, r8
-	bl MapGridGetMetatileIdAt
-	lsls r0, 16
-	lsrs r6, r0, 16
-	adds r0, r5, 0
-	mov r1, r8
-	bl BuyMenuCheckForOverlapWithMenuBg
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080E0608
-	mov r0, sp
-	movs r1, 0
-	ldrsh r0, [r0, r1]
-	adds r0, r5
-	mov r2, r10
-	movs r3, 0
-	ldrsh r1, [r2, r3]
-	add r1, r8
-	bl MapGridGetMetatileLayerTypeAt
-	lsls r0, 24
-	lsrs r5, r0, 24
-	b _080E060A
-	.pool
-_080E0608:
-	movs r5, 0x1
-_080E060A:
-	ldr r0, =0x000001ff
-	cmp r6, r0
-	bhi _080E062C
-	asrs r0, r4, 16
-	mov r2, r9
-	ldr r1, [r2, 0x10]
-	lsls r3, r6, 4
-	ldr r2, [r1, 0xC]
-	adds r2, r3
-	asrs r1, r7, 16
-	adds r3, r5, 0
-	bl BuyMenuDrawMapMetatile
-	b _080E0644
-	.pool
-_080E062C:
-	asrs r0, r4, 16
-	mov r3, r9
-	ldr r2, [r3, 0x14]
-	ldr r3, =0xfffffe00
-	adds r1, r6, r3
-	lsls r1, 4
-	ldr r2, [r2, 0xC]
-	adds r2, r1
-	asrs r1, r7, 16
-	adds r3, r5, 0
-	bl BuyMenuDrawMapMetatile
-_080E0644:
-	movs r1, 0x80
-	lsls r1, 9
-	adds r0, r4, r1
-	lsrs r4, r0, 16
-	asrs r0, 16
-	cmp r0, 0xE
-	ble _080E05BE
-	adds r0, r7, r1
-	lsrs r1, r0, 16
-	asrs r0, 16
-	cmp r0, 0x9
-	ble _080E05B6
-	add sp, 0x4
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end BuyMenuDrawMapBg
-
 	thumb_func_start BuyMenuDrawMapMetatile
 @ void BuyMenuDrawMapMetatile(u16 x, u16 y, u16 *src, u8 metatileLayerType)
 BuyMenuDrawMapMetatile: @ 80E0670
@@ -1427,7 +29,7 @@ _080E0690:
 	beq _080E06F8
 	b _080E0728
 _080E0696:
-	ldr r6, =gUnknown_02039F70
+	ldr r6, =gShopDataPtr
 	ldr r0, [r6]
 	movs r2, 0xC0
 	lsls r2, 5
@@ -1446,7 +48,7 @@ _080E0696:
 	b _080E06E2
 	.pool
 _080E06C0:
-	ldr r6, =gUnknown_02039F70
+	ldr r6, =gShopDataPtr
 	ldr r0, [r6]
 	movs r2, 0x80
 	lsls r2, 5
@@ -1472,7 +74,7 @@ _080E06E2:
 	b _080E0728
 	.pool
 _080E06F8:
-	ldr r6, =gUnknown_02039F70
+	ldr r6, =gShopDataPtr
 	ldr r0, [r6]
 	movs r2, 0x80
 	lsls r2, 5
@@ -1542,7 +144,7 @@ BuyMenuCollectEventObjectData: @ 80E075C
 	adds r1, r4, 0
 	bl GetXYCoordsOneStepInFrontOfPlayer
 	movs r7, 0
-	ldr r5, =gUnknown_02039F70
+	ldr r5, =gShopDataPtr
 	ldr r3, =0x00002010
 	movs r2, 0x10
 _080E0780:
@@ -1560,7 +162,7 @@ _080E0780:
 	bls _080E0780
 	movs r7, 0
 	str r4, [sp, 0x8]
-	ldr r1, =gUnknown_02039F70
+	ldr r1, =gShopDataPtr
 	mov r9, r1
 	mov r2, sp
 	str r2, [sp, 0x4]
@@ -1728,7 +330,7 @@ BuyMenuDrawEventObjects: @ 80E08F0
 	push {r5-r7}
 	sub sp, 0x4
 	movs r7, 0
-	ldr r0, =gUnknown_02039F70
+	ldr r0, =gShopDataPtr
 	mov r8, r0
 	ldr r1, =gEventObjects
 	mov r10, r1
@@ -1883,7 +485,7 @@ _080E0A3A:
 @ void BuyMenuCopyMenuBgToBg1TilemapBuffer()
 BuyMenuCopyMenuBgToBg1TilemapBuffer: @ 80E0A40
 	push {r4-r6,lr}
-	ldr r0, =gUnknown_02039F70
+	ldr r0, =gShopDataPtr
 	ldr r0, [r0]
 	movs r1, 0x80
 	lsls r1, 4
@@ -1921,7 +523,7 @@ _080E0A6A:
 @ bool8 BuyMenuCheckForOverlapWithMenuBg(u16 x, u16 y)
 BuyMenuCheckForOverlapWithMenuBg: @ 80E0A88
 	push {lr}
-	ldr r2, =gUnknown_02039F70
+	ldr r2, =gShopDataPtr
 	ldr r2, [r2]
 	lsls r0, 1
 	lsls r1, 6
@@ -1979,7 +581,7 @@ _080E0AEA:
 	bl ListMenuHandleInputGetItemId
 	adds r5, r0, 0
 	ldrb r0, [r4, 0xE]
-	ldr r7, =gUnknown_02039F70
+	ldr r7, =gShopDataPtr
 	ldr r2, [r7]
 	ldr r3, =0x00002008
 	adds r1, r2, r3
@@ -2011,7 +613,7 @@ _080E0B32:
 	ldrb r0, [r4, 0xE]
 	movs r1, 0x2
 	bl BuyMenuPrintCursor
-	ldr r0, =gUnknown_02039F60
+	ldr r0, =gMartInfo
 	ldrb r0, [r0, 0xF]
 	cmp r0, 0
 	bne _080E0B80
@@ -2049,7 +651,7 @@ _080E0B92:
 	movs r1, 0x92
 	lsls r1, 3
 	adds r0, r1
-	ldr r2, =gUnknown_02039F70
+	ldr r2, =gShopDataPtr
 	mov r8, r2
 	ldr r1, [r2]
 	movs r7, 0x80
@@ -2065,7 +667,7 @@ _080E0B92:
 	b _080E0C28
 	.pool
 _080E0BD0:
-	ldr r4, =gUnknown_02039F60
+	ldr r4, =gMartInfo
 	ldrb r0, [r4, 0xF]
 	cmp r0, 0
 	bne _080E0C38
@@ -2199,7 +801,7 @@ Task_BuyHowManyDialogueInit: @ 80E0CA4
 	lsls r1, 3
 	adds r0, r1
 	bl GetMoney
-	ldr r1, =gUnknown_02039F70
+	ldr r1, =gShopDataPtr
 	ldr r4, [r1]
 	movs r2, 0x80
 	lsls r2, 6
@@ -2248,7 +850,7 @@ Task_BuyHowManyDialogueHandleInput: @ 80E0D88
 	ldr r1, =gTasks + 0x8
 	adds r5, r0, r1
 	adds r0, r5, 0x2
-	ldr r7, =gUnknown_02039F70
+	ldr r7, =gShopDataPtr
 	ldr r1, [r7]
 	ldr r2, =0x0000200a
 	adds r1, r2
@@ -2389,7 +991,7 @@ BuyMenuTryMakePurchase: @ 80E0EDC
 	adds r4, r0, r1
 	movs r0, 0x1
 	bl PutWindowTilemap
-	ldr r6, =gUnknown_02039F60
+	ldr r6, =gMartInfo
 	ldrb r0, [r6, 0xF]
 	cmp r0, 0
 	bne _080E0F40
@@ -2459,7 +1061,7 @@ BuyMenuSubtractMoney: @ 80E0F88
 	movs r4, 0x92
 	lsls r4, 3
 	adds r0, r4
-	ldr r1, =gUnknown_02039F70
+	ldr r1, =gShopDataPtr
 	ldr r1, [r1]
 	movs r2, 0x80
 	lsls r2, 6
@@ -2475,7 +1077,7 @@ BuyMenuSubtractMoney: @ 80E0F88
 	movs r0, 0
 	movs r2, 0
 	bl PrintMoneyAmountInMoneyBox
-	ldr r0, =gUnknown_02039F60
+	ldr r0, =gMartInfo
 	ldrb r0, [r0, 0xF]
 	cmp r0, 0
 	bne _080E0FF0
@@ -2623,7 +1225,7 @@ BuyMenuPrintItemQuantityAndPrice: @ 80E10EC
 	movs r0, 0x4
 	movs r1, 0x11
 	bl FillWindowPixelBuffer
-	ldr r0, =gUnknown_02039F70
+	ldr r0, =gShopDataPtr
 	ldr r0, [r0]
 	movs r1, 0x80
 	lsls r1, 6
diff --git a/data/shop.s b/data/shop.s
index 58f294e6b..45ecbb585 100644
--- a/data/shop.s
+++ b/data/shop.s
@@ -53,9 +53,10 @@ gUnknown_08589AA8:: @ 8589AA8
 
 gUnknown_08589AB0:: @ 8589AB0
 	.byte 1, 2, 3
+	.byte 0, 2, 3
+	.byte 0, 3, 2
 
-gUnknown_08589AB3:: @ 8589AB3
-	.byte 0, 2, 3, 0, 3, 2, 0
+	.align 1
 
 gUnknown_08589ABA:: @ 8589ABA
 	.2byte 0x284, 0x282, 0x280
diff --git a/include/battle_pyramid_bag.h b/include/battle_pyramid_bag.h
index 5d5d8ccfa..2301b0aa0 100644
--- a/include/battle_pyramid_bag.h
+++ b/include/battle_pyramid_bag.h
@@ -11,7 +11,7 @@ struct PyramidBagResources
     u8 windowIds[5];
     u8 unk814;
     u8 unk815;
-    u8 scrollArrowSpriteId;
+    u8 scrollIndicatorsTaskId;
     const u8 *menuActionIds;
     u8 filler81C[0x820 - 0x81C];
     u8 menuActionsCount;
diff --git a/include/shop.h b/include/shop.h
index 9b14a672e..067b8fee4 100644
--- a/include/shop.h
+++ b/include/shop.h
@@ -3,6 +3,42 @@
 
 extern EWRAM_DATA struct ItemSlot gUnknown_02039F80[3];
 
+enum
+{
+    MART_TYPE_0, // normal mart
+    MART_TYPE_1,
+    MART_TYPE_2,
+};
+
+struct MartInfo
+{
+    /*0x0*/ void (* callback) (void);
+    /*0x4*/ const struct MenuAction *menuActions;
+    /*0x8*/ const u16 *itemList;
+    /*0xC*/ u16 itemCount;
+    /*0xE*/ u8 windowId;
+    /*0xF*/ u8 martType;
+};
+
+struct BuyMenuLabel
+{
+	u8 label[16];
+};
+
+struct ShopData
+{
+	/*0x0000*/ u8 tilemapBuffers[4][0x800];
+	/*0x2000*/ u8 filler2000[0x4];
+	/*0x2004*/ u16 unk2004;
+	/*0x2006*/ u8 filler2006[0x2];
+	/*0x2008*/ u16 unk2008;
+	/*0x200A*/ u8 filler200A;
+	/*0x200B*/ u8 scrollIndicatorsTaskId;
+	/*0x200C*/ u8 unk200C;
+	/*0x200D*/ u8 unk200D[2];
+	/*0x200F*/ u8 filler200F[0xA1];
+};
+
 void CreatePokemartMenu(const u16 *);
 void CreateDecorationShop1Menu(const u16 *);
 void CreateDecorationShop2Menu(const u16 *);
diff --git a/include/strings.h b/include/strings.h
index 1a254c2ad..4ea33635b 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -151,8 +151,6 @@ extern const u8 gMenuText_Confirm[];
 extern const u8 gMenuText_Show[];
 extern const u8 gMenuText_Give2[];
 
-extern const u8 gText_Cancel2[];
-
 extern const u8 gText_WithdrawPokemon[];
 extern const u8 gText_WithdrawMonDescription[];
 extern const u8 gText_DepositPokemon[];
@@ -853,4 +851,9 @@ extern const u8 gText_CopperCard[];
 extern const u8 gText_SilverCard[];
 extern const u8 gText_GoldCard[];
 
+extern const u8 gText_CanIHelpWithAnythingElse[];
+extern const u8 gText_AnythingElseICanHelp[];
+extern const u8 gText_QuitShopping[];
+extern const u8 gText_PokedollarVar1[];
+
 #endif //GUARD_STRINGS_H
diff --git a/include/tv.h b/include/tv.h
index 7a938f888..4f1d7730f 100644
--- a/include/tv.h
+++ b/include/tv.h
@@ -50,5 +50,6 @@ void PutBattleUpdateOnTheAir(u8 opponentLinkPlayerId, u16 move, u16 speciesPlaye
 void BravoTrainerPokemonProfile_BeforeInterview1(u16 move);
 void UpdateTVScreensOnMap(int, int);
 void TV_PrintIntToStringVar(u8 varIdx, int value);
+void SaveRecordedItemPurchasesForTVShow(void);
 
 #endif //GUARD_TV_H
diff --git a/ld_script.txt b/ld_script.txt
index 55cb9793f..50ce3bb6d 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -137,6 +137,7 @@ SECTIONS {
         src/item.o(.text);
         src/contest.o(.text);
         asm/contest.o(.text);
+        src/shop.o(.text);
         asm/shop.o(.text);
         src/berry.o(.text);
         asm/script_menu.o(.text);
diff --git a/src/battle_pyramid_bag.c b/src/battle_pyramid_bag.c
index 74a4d3f83..e8ff7cce7 100644
--- a/src/battle_pyramid_bag.c
+++ b/src/battle_pyramid_bag.c
@@ -396,7 +396,7 @@ void sub_81C4F98(u8 a0, void (*callback)(void))
 
     gPyramidBagResources->callback2 = NULL;
     gPyramidBagResources->unk814 = 0xFF;
-    gPyramidBagResources->scrollArrowSpriteId = 0xFF;
+    gPyramidBagResources->scrollIndicatorsTaskId = 0xFF;
 
     memset(gPyramidBagResources->itemsSpriteIds, 0xFF, sizeof(gPyramidBagResources->itemsSpriteIds));
     memset(gPyramidBagResources->windowIds, 0xFF, sizeof(gPyramidBagResources->windowIds));
@@ -664,16 +664,16 @@ static void PrintItemDescription(s32 listMenuId)
 
 static void AddScrollArrow(void)
 {
-    if (gPyramidBagResources->scrollArrowSpriteId == 0xFF)
-        gPyramidBagResources->scrollArrowSpriteId = AddScrollIndicatorArrowPairParameterized(2, 172, 12, 148, gPyramidBagResources->listMenuCount - gPyramidBagResources->listMenuMaxShown, 0xB5E, 0xB5E, &gPyramidBagCursorData.scrollPosition);
+    if (gPyramidBagResources->scrollIndicatorsTaskId == 0xFF)
+        gPyramidBagResources->scrollIndicatorsTaskId = AddScrollIndicatorArrowPairParameterized(2, 172, 12, 148, gPyramidBagResources->listMenuCount - gPyramidBagResources->listMenuMaxShown, 0xB5E, 0xB5E, &gPyramidBagCursorData.scrollPosition);
 }
 
 static void RemoveScrollArrow(void)
 {
-    if (gPyramidBagResources->scrollArrowSpriteId != 0xFF)
+    if (gPyramidBagResources->scrollIndicatorsTaskId != 0xFF)
     {
-        RemoveScrollIndicatorArrowPair(gPyramidBagResources->scrollArrowSpriteId);
-        gPyramidBagResources->scrollArrowSpriteId = 0xFF;
+        RemoveScrollIndicatorArrowPair(gPyramidBagResources->scrollIndicatorsTaskId);
+        gPyramidBagResources->scrollIndicatorsTaskId = 0xFF;
     }
 }
 
diff --git a/src/money.c b/src/money.c
index 7b78dda92..dcc6afa2c 100644
--- a/src/money.c
+++ b/src/money.c
@@ -6,10 +6,9 @@
 #include "menu.h"
 #include "window.h"
 #include "sprite.h"
+#include "strings.h"
 #include "decompress.h"
 
-extern const u8 gText_PokedollarVar1[];
-
 extern const u8 gMenuMoneyGfx[];
 extern const u8 gMenuMoneyPal[];
 
diff --git a/src/shop.c b/src/shop.c
new file mode 100755
index 000000000..26151171a
--- /dev/null
+++ b/src/shop.c
@@ -0,0 +1,679 @@
+#include "global.h"
+#include "bg.h"
+#include "decompress.h"
+#include "decoration.h"
+#include "field_player_avatar.h"
+#include "field_screen.h"
+#include "field_weather.h"
+#include "fieldmap.h"
+#include "gpu_regs.h"
+#include "international_string_util.h"
+#include "item.h"
+#include "item_icon.h"
+#include "list_menu.h"
+#include "main.h"
+#include "malloc.h"
+#include "menu.h"
+#include "menu_helpers.h"
+#include "money.h"
+#include "overworld.h"
+#include "palette.h"
+#include "scanline_effect.h"
+#include "script.h"
+#include "shop.h"
+#include "sound.h"
+#include "sprite.h"
+#include "string_util.h"
+#include "strings.h"
+#include "text_window.h"
+#include "tv.h"
+#include "constants/rgb.h"
+#include "constants/songs.h"
+
+extern struct ShopData *gShopDataPtr;
+extern struct ListMenuItem *gUnknown_02039F74;
+extern u8 (*gUnknown_02039F78)[16];
+extern struct MartInfo gMartInfo;
+
+extern const struct WindowTemplate gUnknown_08589A38[2];
+extern const struct MenuAction gUnknown_08589A10[3];
+extern const struct MenuAction gUnknown_08589A28[2];
+extern const struct ListMenuTemplate gUnknown_08589A48;
+extern const struct BgTemplate gUnknown_08589A60[4];
+extern const u8 gBuyMenuFrame_Gfx[];
+extern const u8 gBuyMenuFrame_Tilemap[];
+extern const u16 gMenuMoneyPal[];
+extern const struct WindowTemplate gUnknown_08589A70[];
+extern u8 gUnknown_08589AB0[][3];
+
+static void Task_ShopMenu(u8 taskId);
+void HandleShopMenuQuit(u8 taskId);
+void CB2_InitBuyMenu(void);
+static void Task_GoToBuyOrSellMenu(u8 taskId);
+void CB2_GoToSellMenu(void);
+void MapPostLoadHook_ExitBuyOrSellMenu(void);
+void Task_ExitSellMenu(u8 taskId);
+void ReturnToShopMenuAfterExitingSellMenu(u8 taskId);
+void BuyMenuDrawGraphics(void);
+void BuyMenuAddScrollIndicatorArrows(void);
+void Task_BuyMenu(u8 taskId);
+void BuyMenuBuildListMenuTemplate(void);
+void BuyMenuInitBgs(void);
+void BuyMenuInitWindows(void);
+void BuyMenuDecompressBgGraphics(void);
+void BuyMenuSetListEntry(struct ListMenuItem*, u16, u8*);
+void BuyMenuAddItemIcon(u16, u8);
+void BuyMenuRemoveItemIcon(u16, u8);
+void BuyMenuPrint(u8 windowId, const u8 *text, u8 x, u8 y, s8 speed, u8 colorSet);
+void BuyMenuDrawMapGraphics(void);
+void BuyMenuCopyMenuBgToBg1TilemapBuffer(void);
+void BuyMenuCollectEventObjectData(void);
+void BuyMenuDrawEventObjects(void);
+void BuyMenuDrawMapBg(void);
+bool8 BuyMenuCheckForOverlapWithMenuBg(u16, u16);
+void BuyMenuDrawMapMetatile(s16, s16, u16*, u8);
+
+
+/*static*/ u8 CreateShopMenu(u8 martType)
+{
+    int numMenuItems;
+
+    ScriptContext2_Enable();
+    gMartInfo.martType = martType;
+
+    if (martType == MART_TYPE_0)
+    {
+        struct WindowTemplate winTemplate;
+        winTemplate = gUnknown_08589A38[0];
+        winTemplate.width = GetMaxWidthInMenuTable(gUnknown_08589A10, ARRAY_COUNT(gUnknown_08589A10));
+        gMartInfo.windowId = AddWindow(&winTemplate);
+        gMartInfo.menuActions = gUnknown_08589A10;
+        numMenuItems = ARRAY_COUNT(gUnknown_08589A10);
+    }
+    else
+    {
+        struct WindowTemplate winTemplate;
+        winTemplate = gUnknown_08589A38[1];
+        winTemplate.width = GetMaxWidthInMenuTable(gUnknown_08589A28, ARRAY_COUNT(gUnknown_08589A28));
+        gMartInfo.windowId = AddWindow(&winTemplate);
+        gMartInfo.menuActions = gUnknown_08589A28;
+        numMenuItems = ARRAY_COUNT(gUnknown_08589A28);
+    }
+
+    SetStandardWindowBorderStyle(gMartInfo.windowId, 0);
+    PrintMenuTable(gMartInfo.windowId, numMenuItems, gMartInfo.menuActions);
+    InitMenuInUpperLeftCornerPlaySoundWhenAPressed(gMartInfo.windowId, numMenuItems, 0);
+    PutWindowTilemap(gMartInfo.windowId);
+    CopyWindowToVram(gMartInfo.windowId, 1);
+
+    return CreateTask(Task_ShopMenu, 8);
+}
+
+/*static*/ void SetShopMenuCallback(void (* callback)(void))
+{
+    gMartInfo.callback = callback;
+}
+
+/*static*/ void SetShopItemsForSale(const u16 *items)
+{
+    u16 i = 0;
+
+    gMartInfo.itemList = items;
+    gMartInfo.itemCount = 0;
+
+    while (gMartInfo.itemList[i])
+    {
+        gMartInfo.itemCount++;
+        i++;
+    }
+}
+
+static void Task_ShopMenu(u8 taskId)
+{
+    s8 inputCode = Menu_ProcessInputNoWrapAround();
+    switch (inputCode)
+    {
+    case -2:
+        break;
+    case -1:
+        PlaySE(SE_SELECT);
+        HandleShopMenuQuit(taskId);
+        break;
+    default:
+        gMartInfo.menuActions[inputCode].func.void_u8(taskId);
+        break;
+    }
+}
+
+void HandleShopMenuBuy(u8 taskId)
+{
+    s16 *taskData = gTasks[taskId].data;
+    taskData[8] = (u32)CB2_InitBuyMenu >> 16;
+    taskData[9] = (u32)CB2_InitBuyMenu;
+    gTasks[taskId].func = Task_GoToBuyOrSellMenu;
+    FadeScreen(1, 0);
+}
+
+void HandleShopMenuSell(u8 taskId)
+{
+    s16 *taskData = gTasks[taskId].data;
+    taskData[8] = (u32)CB2_GoToSellMenu >> 16;
+    taskData[9] = (u32)CB2_GoToSellMenu;
+    gTasks[taskId].func = Task_GoToBuyOrSellMenu;
+    FadeScreen(1, 0);
+}
+
+void CB2_ExitSellMenu(void)
+{
+    gFieldCallback = MapPostLoadHook_ExitBuyOrSellMenu;
+    SetMainCallback2(CB2_ReturnToField);
+}
+
+/*static*/ void HandleShopMenuQuit(u8 taskId)
+{
+    sub_8198070(gMartInfo.windowId, 2);
+    RemoveWindow(gMartInfo.windowId);
+    SaveRecordedItemPurchasesForTVShow();
+    ScriptContext2_Disable();
+    DestroyTask(taskId);
+
+    if (gMartInfo.callback)
+        gMartInfo.callback();
+}
+
+static void Task_GoToBuyOrSellMenu(u8 taskId)
+{
+    s16 *taskData = gTasks[taskId].data;
+    if (!gPaletteFade.active)
+    {
+        DestroyTask(taskId);
+        SetMainCallback2((void *)((u16)taskData[8] << 16 | (u16)taskData[9]));
+    }
+}
+
+void MapPostLoadHook_ExitBuyOrSellMenu(void)
+{
+    pal_fill_black();
+    CreateTask(Task_ExitSellMenu, 8);
+}
+
+void Task_ExitSellMenu(u8 taskId)
+{
+    if (IsWeatherNotFadingIn() == TRUE)
+    {
+        if (gMartInfo.martType == MART_TYPE_2)
+            DisplayItemMessageOnField(taskId, gText_CanIHelpWithAnythingElse, ReturnToShopMenuAfterExitingSellMenu);
+        else
+            DisplayItemMessageOnField(taskId, gText_AnythingElseICanHelp, ReturnToShopMenuAfterExitingSellMenu);
+    }
+}
+
+void ReturnToShopMenuAfterExitingSellMenu(u8 taskId)
+{
+    CreateShopMenu(gMartInfo.martType);
+    DestroyTask(taskId);
+}
+
+void CB2_BuyMenu(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    do_scheduled_bg_tilemap_copies_to_vram();
+    UpdatePaletteFade();
+}
+
+void VBlankCB_BuyMenu(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void CB2_InitBuyMenu(void)
+{
+    u8 taskId;
+
+    switch (gMain.state)
+    {
+    case 0:
+        SetVBlankHBlankCallbacksToNull();
+        CpuFastFill(0, (void *)OAM, 0x400);
+        ScanlineEffect_Stop();
+        reset_temp_tile_data_buffers();
+        FreeAllSpritePalettes();
+        ResetPaletteFade();
+        ResetSpriteData();
+        ResetTasks();
+        clear_scheduled_bg_copies_to_vram();
+        gShopDataPtr = AllocZeroed(sizeof(struct ShopData));
+        gShopDataPtr->scrollIndicatorsTaskId = 0xFF;
+        gShopDataPtr->unk200D[0] = -1;
+        gShopDataPtr->unk200D[1] = -1;
+        BuyMenuBuildListMenuTemplate();
+        BuyMenuInitBgs();
+        FillBgTilemapBufferRect_Palette0(0, 0, 0, 0, 0x20, 0x20);
+        FillBgTilemapBufferRect_Palette0(1, 0, 0, 0, 0x20, 0x20);
+        FillBgTilemapBufferRect_Palette0(2, 0, 0, 0, 0x20, 0x20);
+        FillBgTilemapBufferRect_Palette0(3, 0, 0, 0, 0x20, 0x20);
+        BuyMenuInitWindows();
+        BuyMenuDecompressBgGraphics();
+        gMain.state++;
+        break;
+    case 1:
+        if (!free_temp_tile_data_buffers_if_possible())
+            gMain.state++;
+        break;
+    default:
+        BuyMenuDrawGraphics();
+        BuyMenuAddScrollIndicatorArrows();
+        taskId = CreateTask(Task_BuyMenu, 8);
+        gTasks[taskId].data[7] = ListMenuInit(&gMultiuseListMenuTemplate, 0, 0);
+        BlendPalettes(0xFFFFFFFF, 0x10, RGB_BLACK);
+        BeginNormalPaletteFade(0xFFFFFFFF, 0, 0x10, 0, RGB_BLACK);
+        SetVBlankCallback(VBlankCB_BuyMenu);
+        SetMainCallback2(CB2_BuyMenu);
+        break;
+    }
+}
+
+void BuyMenuFreeMemory(void)
+{
+    Free(gShopDataPtr);
+    Free(gUnknown_02039F74);
+    Free(gUnknown_02039F78);
+    FreeAllWindowBuffers();
+}
+
+void BuyMenuBuildListMenuTemplate(void)
+{
+    u16 i;
+    u16 itemCount;
+
+    gUnknown_02039F74 = Alloc((gMartInfo.itemCount + 1) * sizeof(*gUnknown_02039F74));
+    gUnknown_02039F78 = Alloc((gMartInfo.itemCount + 1) * sizeof(*gUnknown_02039F78));
+    for (i = 0; i < gMartInfo.itemCount; i++)
+        BuyMenuSetListEntry(&gUnknown_02039F74[i], gMartInfo.itemList[i], gUnknown_02039F78[i]);
+
+    StringCopy(gUnknown_02039F78[i], gText_Cancel2);
+    gUnknown_02039F74[i].name = gUnknown_02039F78[i];
+    gUnknown_02039F74[i].id = -2;
+
+    gMultiuseListMenuTemplate = gUnknown_08589A48;
+    gMultiuseListMenuTemplate.items = gUnknown_02039F74;
+    gMultiuseListMenuTemplate.totalItems = gMartInfo.itemCount + 1;
+    if (gMultiuseListMenuTemplate.totalItems > 8)
+        gMultiuseListMenuTemplate.maxShowed = 8;
+    else
+        gMultiuseListMenuTemplate.maxShowed = gMultiuseListMenuTemplate.totalItems;
+
+    gShopDataPtr->unk2004 = gMultiuseListMenuTemplate.maxShowed;
+}
+
+void BuyMenuSetListEntry(struct ListMenuItem *menuItem, u16 item, u8 *name)
+{
+    if (gMartInfo.martType == MART_TYPE_0)
+        CopyItemName(item, name);
+    else
+        StringCopy(name, gDecorations[item].name);
+
+    menuItem->name = name;
+    menuItem->id = item;
+}
+
+void BuyMenuPrintItemDescriptionAndShowItemIcon(int item, bool8 onInit, struct ListMenu *list)
+{
+    const u8 *description;
+    if (onInit != TRUE)
+        PlaySE(SE_SELECT);
+
+    if (item != -2)
+        BuyMenuAddItemIcon(item, gShopDataPtr->unk200C);
+    else
+        BuyMenuAddItemIcon(-1, gShopDataPtr->unk200C);
+
+    BuyMenuRemoveItemIcon(item, gShopDataPtr->unk200C ^ 1);
+    gShopDataPtr->unk200C ^= 1;
+    if (item != -2)
+    {
+        if (gMartInfo.martType == MART_TYPE_0)
+            description = ItemId_GetDescription(item);
+        else
+            description = gDecorations[item].description;
+    }
+    else
+    {
+        description = gText_QuitShopping;
+    }
+
+    FillWindowPixelBuffer(2, 0);
+    BuyMenuPrint(2, description, 3, 1, 0, 0);
+}
+
+void BuyMenuPrintPriceInList(u8 windowId, int item, u8 y)
+{
+    u8 x;
+
+    if (item != -2)
+    {
+        if (gMartInfo.martType == MART_TYPE_0)
+        {
+            ConvertIntToDecimalStringN(
+                gStringVar1,
+                ItemId_GetPrice(item) >> GetPriceReduction(1),
+                STR_CONV_MODE_LEFT_ALIGN,
+                5);
+        }
+        else
+        {
+            ConvertIntToDecimalStringN(
+                gStringVar1,
+                gDecorations[item].price,
+                STR_CONV_MODE_LEFT_ALIGN,
+                5);
+        }
+
+        StringExpandPlaceholders(gStringVar4, gText_PokedollarVar1);
+        x = GetStringRightAlignXOffset(7, gStringVar4, 0x78);
+        AddTextPrinterParameterized4(windowId, 7, x, y, 0, 0, gUnknown_08589AB0[1], -1, gStringVar4);
+    }
+}
+
+void BuyMenuAddScrollIndicatorArrows(void)
+{
+    if (gShopDataPtr->scrollIndicatorsTaskId == 0xFF && gMartInfo.itemCount + 1 > 8)
+    {
+        gShopDataPtr->scrollIndicatorsTaskId = AddScrollIndicatorArrowPairParameterized(
+            SCROLL_ARROW_UP,
+            0xAC,
+            0xC,
+            0x94,
+            gMartInfo.itemCount - 7,
+            0x834,
+            0x834,
+            &gShopDataPtr->unk2008);
+    }
+}
+
+void BuyMenuRemoveScrollIndicatorArrows(void)
+{
+    if (gShopDataPtr->scrollIndicatorsTaskId != 0xFF)
+    {
+        RemoveScrollIndicatorArrowPair(gShopDataPtr->scrollIndicatorsTaskId);
+        gShopDataPtr->scrollIndicatorsTaskId = 0xFF;
+    }
+}
+
+void BuyMenuPrintCursor(u8 scrollIndicatorsTaskId, u8 colorSet)
+{
+    u8 y = ListMenuGetYCoordForPrintingArrowCursor(scrollIndicatorsTaskId);
+    BuyMenuPrint(1, gText_SelectorArrow2, 0, y, 0, colorSet);
+}
+
+void BuyMenuAddItemIcon(u16 item, u8 iconSlot)
+{
+    u8 spriteId;
+    u8 *spriteIdPtr = &gShopDataPtr->unk200D[iconSlot];
+    if (*spriteIdPtr != 0xFF)
+        return;
+
+    if (gMartInfo.martType == MART_TYPE_0 || item == 0xFFFF)
+    {
+        spriteId = AddItemIconSprite(iconSlot + 0x83E, iconSlot + 0x83E, item);
+        if (spriteId != MAX_SPRITES)
+        {
+            *spriteIdPtr = spriteId;
+            gSprites[spriteId].pos2.x = 24;
+            gSprites[spriteId].pos2.y = 88;
+        }
+    }
+    else
+    {
+        spriteId = AddDecorationIconObject(item, 20, 84, 1, iconSlot + 0x83E, iconSlot + 0x83E);
+        if (spriteId != MAX_SPRITES)
+            *spriteIdPtr = spriteId;
+    }
+}
+
+void BuyMenuRemoveItemIcon(u16 item, u8 iconSlot)
+{
+    u8 *spriteIdPtr = &gShopDataPtr->unk200D[iconSlot];
+    if (*spriteIdPtr == 0xFF)
+        return;
+
+    FreeSpriteTilesByTag(iconSlot + 0x83E);
+    FreeSpritePaletteByTag(iconSlot + 0x83E);
+    DestroySprite(&gSprites[*spriteIdPtr]);
+    *spriteIdPtr = 0xFF;
+}
+
+void BuyMenuInitBgs(void)
+{
+    ResetBgsAndClearDma3BusyFlags(0);
+    InitBgsFromTemplates(0, gUnknown_08589A60, ARRAY_COUNT(gUnknown_08589A60));
+    SetBgTilemapBuffer(1, gShopDataPtr->tilemapBuffers[1]);
+    SetBgTilemapBuffer(2, gShopDataPtr->tilemapBuffers[3]);
+    SetBgTilemapBuffer(3, gShopDataPtr->tilemapBuffers[2]);
+    SetGpuReg(REG_OFFSET_BG0HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG0VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG1HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG1VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG2HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG2VOFS, 0);
+    SetGpuReg(REG_OFFSET_BG3HOFS, 0);
+    SetGpuReg(REG_OFFSET_BG3VOFS, 0);
+    SetGpuReg(REG_OFFSET_BLDCNT, 0);
+    SetGpuReg(REG_OFFSET_DISPCNT, DISPCNT_MODE_0 | DISPCNT_OBJ_ON | DISPCNT_OBJ_1D_MAP);
+    ShowBg(0);
+    ShowBg(1);
+    ShowBg(2);
+    ShowBg(3);
+}
+
+void BuyMenuDecompressBgGraphics(void)
+{
+    decompress_and_copy_tile_data_to_vram(1, gBuyMenuFrame_Gfx, 0x3A0, 0x3E3, 0);
+    LZDecompressWram(gBuyMenuFrame_Tilemap, gShopDataPtr->tilemapBuffers[0]);
+    LoadCompressedPalette(gMenuMoneyPal, 0xC0, 0x20);
+}
+
+void BuyMenuInitWindows(void)
+{
+    InitWindows(gUnknown_08589A70);
+    DeactivateAllTextPrinters();
+    LoadUserWindowBorderGfx(0, 1, 0xD0);
+    LoadMessageBoxGfx(0, 0xA, 0xE0);
+    PutWindowTilemap(0);
+    PutWindowTilemap(1);
+    PutWindowTilemap(2);
+}
+
+void BuyMenuPrint(u8 windowId, const u8 *text, u8 x, u8 y, s8 speed, u8 colorSet)
+{
+    AddTextPrinterParameterized4(windowId, 1, x, y, 0, 0, gUnknown_08589AB0[colorSet], speed, text);
+}
+
+void BuyMenuDisplayMessage(u8 taskId, const u8 *text, TaskFunc callback)
+{
+    DisplayMessageAndContinueTask(taskId, 5, 10, 14, 1, GetPlayerTextSpeed(), text, callback);
+    schedule_bg_copy_tilemap_to_vram(0);
+}
+
+void BuyMenuDrawGraphics(void)
+{
+    BuyMenuDrawMapGraphics();
+    BuyMenuCopyMenuBgToBg1TilemapBuffer();
+    AddMoneyLabelObject(19, 11);
+    PrintMoneyAmountInMoneyBoxWithBorder(0, 1, 13, GetMoney(&gSaveBlock1Ptr->money));
+    schedule_bg_copy_tilemap_to_vram(0);
+    schedule_bg_copy_tilemap_to_vram(1);
+    schedule_bg_copy_tilemap_to_vram(2);
+    schedule_bg_copy_tilemap_to_vram(3);
+}
+
+void BuyMenuDrawMapGraphics(void)
+{
+    BuyMenuCollectEventObjectData();
+    BuyMenuDrawEventObjects();
+    BuyMenuDrawMapBg();
+}
+
+#ifdef NONMATCHING
+// functionally equivalent, but couldn't get the loop variables using the 
+// stack correctly. Might be related to the tileset metatiles type.
+void BuyMenuDrawMapBg(void)
+{
+    s16 i;
+    s16 j;
+    s16 x;
+    s16 y;
+    const struct MapLayout *mapLayout;
+    u16 metatile, metatileLayerType;
+
+    mapLayout = gMapHeader.mapLayout;
+    GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
+    x -= 4;
+    y -= 4;
+
+    for (j = 0; j < 10; j++)
+    {
+        for (i = 0; i < 15; i++)
+        {
+            metatile = MapGridGetMetatileIdAt(x + i, y + j);
+            if (BuyMenuCheckForOverlapWithMenuBg(i, j) == TRUE)
+                metatileLayerType = MapGridGetMetatileLayerTypeAt(x + i, y + j);
+            else
+                metatileLayerType = 1;
+
+            if (metatile < 0x200)
+            {
+                BuyMenuDrawMapMetatile(i, j, (u16*)mapLayout->primaryTileset->metatiles + metatile * 8, metatileLayerType);
+            }
+            else
+            {
+                BuyMenuDrawMapMetatile(i, j, (u16*)mapLayout->secondaryTileset->metatiles + ((metatile - 0x200) * 8), metatileLayerType);
+            }
+        }
+    }
+}
+#else
+NAKED
+void BuyMenuDrawMapBg(void)
+{
+    asm_unified("\n\
+    push {r4-r7,lr}\n\
+    mov r7, r10\n\
+    mov r6, r9\n\
+    mov r5, r8\n\
+    push {r5-r7}\n\
+    sub sp, 0x4\n\
+    ldr r0, =gMapHeader\n\
+    ldr r0, [r0]\n\
+    mov r9, r0\n\
+    mov r4, sp\n\
+    adds r4, 0x2\n\
+    mov r0, sp\n\
+    adds r1, r4, 0\n\
+    bl GetXYCoordsOneStepInFrontOfPlayer\n\
+    mov r1, sp\n\
+    mov r0, sp\n\
+    ldrh r0, [r0]\n\
+    subs r0, 0x4\n\
+    strh r0, [r1]\n\
+    ldrh r0, [r4]\n\
+    subs r0, 0x4\n\
+    strh r0, [r4]\n\
+    movs r1, 0\n\
+    mov r10, r4\n\
+_080E05B6:\n\
+    movs r4, 0\n\
+    lsls r7, r1, 16\n\
+    asrs r0, r7, 16\n\
+    mov r8, r0\n\
+_080E05BE:\n\
+    mov r0, sp\n\
+    movs r1, 0\n\
+    ldrsh r0, [r0, r1]\n\
+    lsls r4, 16\n\
+    asrs r5, r4, 16\n\
+    adds r0, r5\n\
+    mov r2, r10\n\
+    movs r3, 0\n\
+    ldrsh r1, [r2, r3]\n\
+    add r1, r8\n\
+    bl MapGridGetMetatileIdAt\n\
+    lsls r0, 16\n\
+    lsrs r6, r0, 16\n\
+    adds r0, r5, 0\n\
+    mov r1, r8\n\
+    bl BuyMenuCheckForOverlapWithMenuBg\n\
+    lsls r0, 24\n\
+    lsrs r0, 24\n\
+    cmp r0, 0x1\n\
+    bne _080E0608\n\
+    mov r0, sp\n\
+    movs r1, 0\n\
+    ldrsh r0, [r0, r1]\n\
+    adds r0, r5\n\
+    mov r2, r10\n\
+    movs r3, 0\n\
+    ldrsh r1, [r2, r3]\n\
+    add r1, r8\n\
+    bl MapGridGetMetatileLayerTypeAt\n\
+    lsls r0, 24\n\
+    lsrs r5, r0, 24\n\
+    b _080E060A\n\
+    .pool\n\
+_080E0608:\n\
+    movs r5, 0x1\n\
+_080E060A:\n\
+    ldr r0, =0x000001ff\n\
+    cmp r6, r0\n\
+    bhi _080E062C\n\
+    asrs r0, r4, 16\n\
+    mov r2, r9\n\
+    ldr r1, [r2, 0x10]\n\
+    lsls r3, r6, 4\n\
+    ldr r2, [r1, 0xC]\n\
+    adds r2, r3\n\
+    asrs r1, r7, 16\n\
+    adds r3, r5, 0\n\
+    bl BuyMenuDrawMapMetatile\n\
+    b _080E0644\n\
+    .pool\n\
+_080E062C:\n\
+    asrs r0, r4, 16\n\
+    mov r3, r9\n\
+    ldr r2, [r3, 0x14]\n\
+    ldr r3, =0xfffffe00\n\
+    adds r1, r6, r3\n\
+    lsls r1, 4\n\
+    ldr r2, [r2, 0xC]\n\
+    adds r2, r1\n\
+    asrs r1, r7, 16\n\
+    adds r3, r5, 0\n\
+    bl BuyMenuDrawMapMetatile\n\
+_080E0644:\n\
+    movs r1, 0x80\n\
+    lsls r1, 9\n\
+    adds r0, r4, r1\n\
+    lsrs r4, r0, 16\n\
+    asrs r0, 16\n\
+    cmp r0, 0xE\n\
+    ble _080E05BE\n\
+    adds r0, r7, r1\n\
+    lsrs r1, r0, 16\n\
+    asrs r0, 16\n\
+    cmp r0, 0x9\n\
+    ble _080E05B6\n\
+    add sp, 0x4\n\
+    pop {r3-r5}\n\
+    mov r8, r3\n\
+    mov r9, r4\n\
+    mov r10, r5\n\
+    pop {r4-r7}\n\
+    pop {r0}\n\
+    bx r0\n\
+    .pool");
+}
+#endif // NONMATCHING
diff --git a/sym_ewram.txt b/sym_ewram.txt
index 08a834057..8ac8871f8 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -380,10 +380,10 @@ gUnknown_02039F5C: @ 2039F5C
 gUnknown_02039F5D: @ 2039F5D
 	.space 0x3
 
-gUnknown_02039F60: @ 2039F60
+gMartInfo: @ 2039F60
 	.space 0x10
 
-gUnknown_02039F70: @ 2039F70
+gShopDataPtr: @ 2039F70
 	.space 0x4
 
 gUnknown_02039F74: @ 2039F74