Merge pull request #362 from drifloony/menu_helpers

Decompile menu_helpers

8 files changed, 595 insertions, 1468 deletions

diff --git a/asm/menu_helpers.s b/asm/menu_helpers.s
deleted file mode 100644
index 0f5caf3da..000000000
--- a/asm/menu_helpers.s
+++ /dev/null
@@ -1,1339 +0,0 @@
-	.include "constants/gba_constants.inc"
-	.include "constants/species_constants.inc"
-	.include "asm/macros.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sub_80F9020
-sub_80F9020: @ 80F9020
-	push {r4,r5,lr}
-	ldr r4, _080F9054 @ =gBGTilemapBuffers + 0x800
-	movs r5, 0x80
-	lsls r5, 4
-	adds r0, r4, 0
-	movs r1, 0
-	adds r2, r5, 0
-	bl memset
-	adds r0, r4, r5
-	movs r1, 0
-	adds r2, r5, 0
-	bl memset
-	movs r0, 0x80
-	lsls r0, 5
-	adds r4, r0
-	adds r0, r4, 0
-	movs r1, 0
-	adds r2, r5, 0
-	bl memset
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9054: .4byte gBGTilemapBuffers + 0x800
-	thumb_func_end sub_80F9020
-
-	thumb_func_start sav2_get_text_speed
-sav2_get_text_speed: @ 80F9058
-	push {r4,r5,lr}
-	sub sp, 0x8
-	adds r5, r0, 0
-	lsls r1, 16
-	lsrs r4, r1, 16
-	bl MenuDisplayMessageBox
-	cmp r4, 0
-	beq _080F907C
-	ldr r0, _080F908C @ =gBGTilemapBuffers + 0x800
-	movs r1, 0x4
-	str r1, [sp]
-	str r4, [sp, 0x4]
-	movs r1, 0x2
-	movs r2, 0xF
-	movs r3, 0x1A
-	bl sub_80A3FA0
-_080F907C:
-	adds r0, r5, 0
-	bl sub_8072044
-	add sp, 0x8
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F908C: .4byte gBGTilemapBuffers + 0x800
-	thumb_func_end sav2_get_text_speed
-
-	thumb_func_start sub_80F9090
-sub_80F9090: @ 80F9090
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	bl MenuUpdateWindowText
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080F90AC
-	ldr r0, _080F90B4 @ =gUnknown_0300074C
-	ldr r1, [r0]
-	adds r0, r4, 0
-	bl _call_via_r1
-_080F90AC:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F90B4: .4byte gUnknown_0300074C
-	thumb_func_end sub_80F9090
-
-	thumb_func_start DisplayItemMessageOnField
-DisplayItemMessageOnField: @ 80F90B8
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	adds r0, r1, 0
-	adds r5, r2, 0
-	adds r1, r3, 0
-	lsls r4, 24
-	lsrs r4, 24
-	lsls r1, 16
-	lsrs r1, 16
-	bl sav2_get_text_speed
-	ldr r0, _080F90E8 @ =gUnknown_0300074C
-	str r5, [r0]
-	ldr r1, _080F90EC @ =gTasks
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 3
-	adds r0, r1
-	ldr r1, _080F90F0 @ =sub_80F9090
-	str r1, [r0]
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F90E8: .4byte gUnknown_0300074C
-_080F90EC: .4byte gTasks
-_080F90F0: .4byte sub_80F9090
-	thumb_func_end DisplayItemMessageOnField
-
-	thumb_func_start Task_CallYesOrNoCallback
-Task_CallYesOrNoCallback: @ 80F90F4
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	bl ProcessMenuInputNoWrap_
-	lsls r0, 24
-	asrs r1, r0, 24
-	cmp r1, 0
-	beq _080F911A
-	cmp r1, 0
-	bgt _080F9114
-	movs r0, 0x1
-	negs r0, r0
-	cmp r1, r0
-	beq _080F9130
-	b _080F9140
-_080F9114:
-	cmp r1, 0x1
-	beq _080F9130
-	b _080F9140
-_080F911A:
-	movs r0, 0x5
-	bl PlaySE
-	ldr r0, _080F912C @ =gUnknown_020388C4
-	ldr r1, [r0]
-	adds r0, r4, 0
-	bl _call_via_r1
-	b _080F9140
-	.align 2, 0
-_080F912C: .4byte gUnknown_020388C4
-_080F9130:
-	movs r0, 0x5
-	bl PlaySE
-	ldr r0, _080F9148 @ =gUnknown_020388C4
-	ldr r1, [r0, 0x4]
-	adds r0, r4, 0
-	bl _call_via_r1
-_080F9140:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9148: .4byte gUnknown_020388C4
-	thumb_func_end Task_CallYesOrNoCallback
-
-	thumb_func_start DoYesNoFuncWithChoice
-DoYesNoFuncWithChoice: @ 80F914C
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r3, _080F916C @ =gUnknown_020388C4
-	ldr r2, [r1, 0x4]
-	ldr r1, [r1]
-	str r1, [r3]
-	str r2, [r3, 0x4]
-	ldr r2, _080F9170 @ =gTasks
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	adds r1, r2
-	ldr r0, _080F9174 @ =Task_CallYesOrNoCallback
-	str r0, [r1]
-	bx lr
-	.align 2, 0
-_080F916C: .4byte gUnknown_020388C4
-_080F9170: .4byte gTasks
-_080F9174: .4byte Task_CallYesOrNoCallback
-	thumb_func_end DoYesNoFuncWithChoice
-
-	thumb_func_start brm_trade_1
-brm_trade_1: @ 80F9178
-	push {r4-r7,lr}
-	sub sp, 0x4
-	adds r5, r0, 0
-	lsls r1, 24
-	lsrs r4, r1, 24
-	lsls r2, 24
-	lsrs r7, r2, 24
-	lsls r3, 24
-	lsrs r6, r3, 24
-	ldr r1, _080F91C0 @ =gUnknown_083E5A18
-	mov r0, sp
-	movs r2, 0x4
-	bl memcpy
-	cmp r4, 0xFF
-	beq _080F91CC
-	mov r0, sp
-	strb r4, [r0, 0x2]
-	ldr r4, _080F91C4 @ =gStringVar4
-	adds r0, r4, 0
-	mov r1, sp
-	bl StringCopy
-	adds r0, r4, 0
-	adds r1, r5, 0
-	bl StringAppend
-	mov r1, sp
-	ldr r0, _080F91C8 @ =gMenuWindowPtr
-	ldr r0, [r0]
-	ldrb r0, [r0, 0x6]
-	strb r0, [r1, 0x2]
-	adds r0, r4, 0
-	bl StringAppend
-	b _080F91D4
-	.align 2, 0
-_080F91C0: .4byte gUnknown_083E5A18
-_080F91C4: .4byte gStringVar4
-_080F91C8: .4byte gMenuWindowPtr
-_080F91CC:
-	ldr r0, _080F91E8 @ =gStringVar4
-	adds r1, r5, 0
-	bl StringCopy
-_080F91D4:
-	ldr r0, _080F91E8 @ =gStringVar4
-	adds r1, r7, 0
-	adds r2, r6, 0
-	bl MenuPrint
-	add sp, 0x4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F91E8: .4byte gStringVar4
-	thumb_func_end brm_trade_1
-
-	thumb_func_start unref_sub_80F91EC
-unref_sub_80F91EC: @ 80F91EC
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	mov r12, r0
-	adds r4, r2, 0
-	adds r2, r3, 0
-	ldr r0, [sp, 0x18]
-	ldr r3, [sp, 0x1C]
-	lsls r1, 24
-	lsrs r1, 24
-	mov r8, r1
-	lsls r4, 24
-	lsrs r4, 24
-	lsls r2, 24
-	lsrs r2, 24
-	lsls r0, 24
-	lsrs r7, r0, 24
-	lsls r3, 24
-	lsrs r5, r3, 24
-	ldr r6, _080F9234 @ =gStringVar1
-	adds r0, r6, 0
-	mov r1, r12
-	adds r3, r4, 0
-	bl ConvertIntToDecimalStringN
-	mov r0, r8
-	cmp r0, 0xFF
-	beq _080F9238
-	adds r0, r6, 0
-	mov r1, r8
-	adds r2, r7, 0
-	adds r3, r5, 0
-	bl brm_trade_1
-	b _080F9242
-	.align 2, 0
-_080F9234: .4byte gStringVar1
-_080F9238:
-	adds r0, r6, 0
-	adds r1, r7, 0
-	adds r2, r5, 0
-	bl MenuPrint
-_080F9242:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end unref_sub_80F91EC
-
-	thumb_func_start unref_sub_80F924C
-unref_sub_80F924C: @ 80F924C
-	push {r4-r6,lr}
-	sub sp, 0x4
-	adds r5, r0, 0
-	adds r6, r1, 0
-	adds r4, r2, 0
-	lsls r5, 24
-	lsrs r5, 24
-	lsls r6, 24
-	lsrs r6, 24
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r1, _080F9280 @ =gUnknown_083E5A1C
-	mov r0, sp
-	movs r2, 0x2
-	bl memcpy
-	mov r0, sp
-	adds r1, r4, 0
-	adds r2, r5, 0
-	adds r3, r6, 0
-	bl brm_trade_1
-	add sp, 0x4
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9280: .4byte gUnknown_083E5A1C
-	thumb_func_end unref_sub_80F924C
-
-	thumb_func_start sub_80F9284
-sub_80F9284: @ 80F9284
-	push {lr}
-	ldr r0, _080F92A0 @ =gSaveBlock2
-	ldrb r0, [r0, 0x13]
-	cmp r0, 0x1
-	bne _080F92B6
-	ldr r0, _080F92A4 @ =gMain
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0x80
-	lsls r0, 2
-	ands r0, r1
-	cmp r0, 0
-	beq _080F92A8
-	movs r0, 0x1
-	b _080F92B8
-	.align 2, 0
-_080F92A0: .4byte gSaveBlock2
-_080F92A4: .4byte gMain
-_080F92A8:
-	movs r0, 0x80
-	lsls r0, 1
-	ands r0, r1
-	cmp r0, 0
-	beq _080F92B6
-	movs r0, 0x2
-	b _080F92B8
-_080F92B6:
-	movs r0, 0
-_080F92B8:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80F9284
-
-	thumb_func_start sub_80F92BC
-sub_80F92BC: @ 80F92BC
-	push {lr}
-	ldr r0, _080F92D8 @ =gSaveBlock2
-	ldrb r0, [r0, 0x13]
-	cmp r0, 0x1
-	bne _080F92EE
-	ldr r0, _080F92DC @ =gMain
-	ldrh r1, [r0, 0x30]
-	movs r0, 0x80
-	lsls r0, 2
-	ands r0, r1
-	cmp r0, 0
-	beq _080F92E0
-	movs r0, 0x1
-	b _080F92F0
-	.align 2, 0
-_080F92D8: .4byte gSaveBlock2
-_080F92DC: .4byte gMain
-_080F92E0:
-	movs r0, 0x80
-	lsls r0, 1
-	ands r0, r1
-	cmp r0, 0
-	beq _080F92EE
-	movs r0, 0x2
-	b _080F92F0
-_080F92EE:
-	movs r0, 0
-_080F92F0:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80F92BC
-
-	thumb_func_start sub_80F92F4
-sub_80F92F4: @ 80F92F4
-	push {lr}
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0xAF
-	bne _080F9314
-	ldr r0, _080F930C @ =gSaveBlock1
-	ldrh r1, [r0, 0x4]
-	ldr r0, _080F9310 @ =0x00001919
-	cmp r1, r0
-	bne _080F9314
-	movs r0, 0
-	b _080F9316
-	.align 2, 0
-_080F930C: .4byte gSaveBlock1
-_080F9310: .4byte 0x00001919
-_080F9314:
-	movs r0, 0x1
-_080F9316:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80F92F4
-
-	thumb_func_start sub_80F931C
-sub_80F931C: @ 80F931C
-	push {r4,lr}
-	lsls r0, 16
-	lsrs r4, r0, 16
-	bl is_c1_link_related_active
-	cmp r0, 0x1
-	bne _080F933C
-	adds r0, r4, 0
-	bl ItemIsMail
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080F933C
-	movs r0, 0
-	b _080F933E
-_080F933C:
-	movs r0, 0x1
-_080F933E:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80F931C
-
-	thumb_func_start sub_80F9344
-sub_80F9344: @ 80F9344
-	push {lr}
-	bl is_c1_link_related_active
-	cmp r0, 0x1
-	beq _080F9356
-	ldr r0, _080F935C @ =gReceivedRemoteLinkPlayers
-	ldrb r0, [r0]
-	cmp r0, 0x1
-	bne _080F9360
-_080F9356:
-	movs r0, 0x1
-	b _080F9362
-	.align 2, 0
-_080F935C: .4byte gReceivedRemoteLinkPlayers
-_080F9360:
-	movs r0, 0
-_080F9362:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80F9344
-
-	thumb_func_start sub_80F9368
-sub_80F9368: @ 80F9368
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x8
-	movs r0, 0x80
-	lsls r0, 19
-	movs r1, 0
-	strh r1, [r0]
-	adds r0, 0xE
-	strh r1, [r0]
-	subs r0, 0x2
-	strh r1, [r0]
-	subs r0, 0x2
-	strh r1, [r0]
-	subs r0, 0x2
-	strh r1, [r0]
-	adds r0, 0x14
-	strh r1, [r0]
-	adds r0, 0x2
-	strh r1, [r0]
-	subs r0, 0x6
-	strh r1, [r0]
-	adds r0, 0x2
-	strh r1, [r0]
-	subs r0, 0x6
-	strh r1, [r0]
-	adds r0, 0x2
-	strh r1, [r0]
-	subs r0, 0x6
-	strh r1, [r0]
-	adds r0, 0x2
-	strh r1, [r0]
-	movs r3, 0xC0
-	lsls r3, 19
-	movs r4, 0xC0
-	lsls r4, 9
-	add r0, sp, 0x4
-	mov r8, r0
-	mov r2, sp
-	movs r6, 0
-	ldr r1, _080F9430 @ =0x040000d4
-	movs r5, 0x80
-	lsls r5, 5
-	ldr r7, _080F9434 @ =0x81000800
-	movs r0, 0x81
-	lsls r0, 24
-	mov r12, r0
-_080F93C6:
-	strh r6, [r2]
-	mov r0, sp
-	str r0, [r1]
-	str r3, [r1, 0x4]
-	str r7, [r1, 0x8]
-	ldr r0, [r1, 0x8]
-	adds r3, r5
-	subs r4, r5
-	cmp r4, r5
-	bhi _080F93C6
-	strh r6, [r2]
-	mov r2, sp
-	str r2, [r1]
-	str r3, [r1, 0x4]
-	lsrs r0, r4, 1
-	mov r2, r12
-	orrs r0, r2
-	str r0, [r1, 0x8]
-	ldr r0, [r1, 0x8]
-	movs r0, 0xE0
-	lsls r0, 19
-	movs r3, 0x80
-	lsls r3, 3
-	movs r4, 0
-	str r4, [sp, 0x4]
-	ldr r2, _080F9430 @ =0x040000d4
-	mov r1, r8
-	str r1, [r2]
-	str r0, [r2, 0x4]
-	lsrs r0, r3, 2
-	movs r1, 0x85
-	lsls r1, 24
-	orrs r0, r1
-	str r0, [r2, 0x8]
-	ldr r0, [r2, 0x8]
-	movs r1, 0xA0
-	lsls r1, 19
-	mov r0, sp
-	strh r4, [r0]
-	str r0, [r2]
-	str r1, [r2, 0x4]
-	lsrs r3, 1
-	movs r0, 0x81
-	lsls r0, 24
-	orrs r3, r0
-	str r3, [r2, 0x8]
-	ldr r0, [r2, 0x8]
-	add sp, 0x8
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9430: .4byte 0x040000d4
-_080F9434: .4byte 0x81000800
-	thumb_func_end sub_80F9368
-
-	thumb_func_start sub_80F9438
-sub_80F9438: @ 80F9438
-	push {lr}
-	movs r0, 0
-	bl SetVBlankCallback
-	movs r0, 0
-	bl SetHBlankCallback
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80F9438
-
-	thumb_func_start sub_80F944C
-sub_80F944C: @ 80F944C
-	push {r4,lr}
-	movs r2, 0
-	ldr r4, _080F9478 @ =gUnknown_020388C0
-	movs r3, 0xFF
-_080F9454:
-	adds r0, r2, r4
-	ldrb r1, [r0]
-	orrs r1, r3
-	strb r1, [r0]
-	adds r0, r2, 0x1
-	lsls r0, 24
-	lsrs r2, r0, 24
-	cmp r2, 0x3
-	bls _080F9454
-	movs r0, 0x6
-	bl FreeSpritePaletteByTag
-	ldr r0, _080F947C @ =gUnknown_083E5968
-	bl LoadSpritePalette
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9478: .4byte gUnknown_020388C0
-_080F947C: .4byte gUnknown_083E5968
-	thumb_func_end sub_80F944C
-
-	thumb_func_start sub_80F9480
-sub_80F9480: @ 80F9480
-	push {r4,lr}
-	adds r3, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	movs r2, 0
-	cmp r2, r1
-	bcs _080F949E
-	movs r4, 0xFF
-_080F9490:
-	adds r0, r3, r2
-	strb r4, [r0]
-	adds r0, r2, 0x1
-	lsls r0, 24
-	lsrs r2, r0, 24
-	cmp r2, r1
-	bcc _080F9490
-_080F949E:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80F9480
-
-	thumb_func_start sub_80F94A4
-sub_80F94A4: @ 80F94A4
-	push {r4,r5,lr}
-	adds r5, r1, 0
-	lsls r0, 24
-	lsrs r4, r0, 24
-	lsls r2, 16
-	lsrs r1, r2, 16
-	lsls r3, 16
-	lsrs r2, r3, 16
-	cmp r4, 0x5
-	bhi _080F94E8
-	ldrb r0, [r5]
-	cmp r0, 0xFF
-	bne _080F94D0
-	ldr r0, _080F94F0 @ =gSpriteTemplate_83E5A00
-	lsls r1, 16
-	asrs r1, 16
-	lsls r2, 16
-	asrs r2, 16
-	movs r3, 0
-	bl CreateSprite
-	strb r0, [r5]
-_080F94D0:
-	subs r0, r4, 0x4
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldrb r1, [r5]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080F94F4 @ =gSprites
-	adds r0, r1
-	adds r1, r4, 0
-	bl StartSpriteAnim
-_080F94E8:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F94F0: .4byte gSpriteTemplate_83E5A00
-_080F94F4: .4byte gSprites
-	thumb_func_end sub_80F94A4
-
-	thumb_func_start sub_80F94F8
-sub_80F94F8: @ 80F94F8
-	push {r4,lr}
-	adds r4, r0, 0
-	ldrb r0, [r4]
-	cmp r0, 0xFF
-	beq _080F9516
-	adds r1, r0, 0
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080F951C @ =gSprites
-	adds r0, r1
-	bl DestroySprite
-	movs r0, 0xFF
-	strb r0, [r4]
-_080F9516:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F951C: .4byte gSprites
-	thumb_func_end sub_80F94F8
-
-	thumb_func_start sub_80F9520
-sub_80F9520: @ 80F9520
-	push {r4,r5,lr}
-	adds r5, r0, 0
-	movs r4, 0
-_080F9526:
-	adds r0, r5, r4
-	bl sub_80F94F8
-	adds r0, r4, 0x1
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, 0x7
-	bls _080F9526
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80F9520
-
-	thumb_func_start CreateVerticalScrollIndicators
-CreateVerticalScrollIndicators: @ 80F953C
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	lsls r1, 16
-	lsrs r3, r1, 16
-	lsls r2, 16
-	lsrs r2, 16
-	cmp r4, 0x3
-	bls _080F9550
-	b _080F9790
-_080F9550:
-	cmp r4, 0x1
-	beq _080F95F6
-	cmp r4, 0x1
-	bgt _080F9564
-	cmp r4, 0
-	beq _080F9578
-	ldr r5, _080F9560 @ =gUnknown_020388C0
-	b _080F977A
-	.align 2, 0
-_080F9560: .4byte gUnknown_020388C0
-_080F9564:
-	cmp r4, 0x2
-	bne _080F956A
-	b _080F967C
-_080F956A:
-	cmp r4, 0x3
-	bne _080F9570
-	b _080F96F8
-_080F9570:
-	ldr r5, _080F9574 @ =gUnknown_020388C0
-	b _080F977A
-	.align 2, 0
-_080F9574: .4byte gUnknown_020388C0
-_080F9578:
-	ldr r0, _080F95D8 @ =gUnknown_020388C0
-	ldrb r1, [r0]
-	adds r5, r0, 0
-	cmp r1, 0xFF
-	beq _080F9584
-	b _080F977A
-_080F9584:
-	ldr r0, _080F95DC @ =gSpriteTemplate_83E59D0
-	lsls r1, r3, 16
-	asrs r1, 16
-	lsls r2, 16
-	asrs r2, 16
-	movs r3, 0
-	bl CreateSprite
-	strb r0, [r5]
-	ldr r3, _080F95E0 @ =gSprites
-	ldrb r1, [r5]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	ldr r1, _080F95E4 @ =0x0000ffff
-	strh r1, [r0, 0x32]
-	ldrb r0, [r5, 0x1]
-	cmp r0, 0xFF
-	beq _080F95E8
-	ldrb r0, [r5]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5, 0x1]
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r3
-	movs r2, 0x26
-	ldrsh r0, [r0, r2]
-	negs r0, r0
-	strh r0, [r1, 0x26]
-	ldrb r0, [r5]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5, 0x1]
-	b _080F9650
-	.align 2, 0
-_080F95D8: .4byte gUnknown_020388C0
-_080F95DC: .4byte gSpriteTemplate_83E59D0
-_080F95E0: .4byte gSprites
-_080F95E4: .4byte 0x0000ffff
-_080F95E8:
-	ldrb r1, [r5]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	strh r4, [r0, 0x34]
-	b _080F977A
-_080F95F6:
-	ldr r0, _080F9660 @ =gUnknown_020388C0
-	ldrb r1, [r0, 0x1]
-	adds r5, r0, 0
-	cmp r1, 0xFF
-	beq _080F9602
-	b _080F977A
-_080F9602:
-	ldr r0, _080F9664 @ =gSpriteTemplate_83E59D0
-	lsls r1, r3, 16
-	asrs r1, 16
-	lsls r2, 16
-	asrs r2, 16
-	movs r3, 0
-	bl CreateSprite
-	strb r0, [r5, 0x1]
-	ldr r3, _080F9668 @ =gSprites
-	ldrb r1, [r5, 0x1]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	strh r4, [r0, 0x32]
-	ldrb r0, [r5]
-	cmp r0, 0xFF
-	beq _080F966C
-	ldrb r0, [r5, 0x1]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5]
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r3
-	movs r2, 0x26
-	ldrsh r0, [r0, r2]
-	negs r0, r0
-	strh r0, [r1, 0x26]
-	ldrb r0, [r5, 0x1]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5]
-_080F9650:
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r3
-	ldrh r0, [r0, 0x34]
-	strh r0, [r1, 0x34]
-	b _080F977A
-	.align 2, 0
-_080F9660: .4byte gUnknown_020388C0
-_080F9664: .4byte gSpriteTemplate_83E59D0
-_080F9668: .4byte gSprites
-_080F966C:
-	ldrb r0, [r5, 0x1]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	movs r0, 0
-	strh r0, [r1, 0x34]
-	b _080F977A
-_080F967C:
-	ldr r0, _080F96E4 @ =gUnknown_020388C0
-	ldrb r1, [r0, 0x2]
-	adds r5, r0, 0
-	cmp r1, 0xFF
-	bne _080F977A
-	ldr r0, _080F96E8 @ =gSpriteTemplate_83E59E8
-	lsls r1, r3, 16
-	asrs r1, 16
-	lsls r2, 16
-	asrs r2, 16
-	movs r3, 0
-	bl CreateSprite
-	strb r0, [r5, 0x2]
-	ldr r3, _080F96EC @ =gSprites
-	ldrb r1, [r5, 0x2]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	ldr r1, _080F96F0 @ =0x0000ffff
-	strh r1, [r0, 0x2E]
-	ldrb r0, [r5, 0x3]
-	cmp r0, 0xFF
-	beq _080F96F4
-	ldrb r0, [r5, 0x2]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5, 0x3]
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r3
-	movs r2, 0x24
-	ldrsh r0, [r0, r2]
-	negs r0, r0
-	strh r0, [r1, 0x24]
-	ldrb r0, [r5, 0x2]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5, 0x3]
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r3
-	ldrh r0, [r0, 0x30]
-	b _080F9778
-	.align 2, 0
-_080F96E4: .4byte gUnknown_020388C0
-_080F96E8: .4byte gSpriteTemplate_83E59E8
-_080F96EC: .4byte gSprites
-_080F96F0: .4byte 0x0000ffff
-_080F96F4:
-	ldrb r0, [r5, 0x2]
-	b _080F976E
-_080F96F8:
-	ldr r0, _080F9760 @ =gUnknown_020388C0
-	ldrb r1, [r0, 0x3]
-	adds r5, r0, 0
-	cmp r1, 0xFF
-	bne _080F977A
-	ldr r0, _080F9764 @ =gSpriteTemplate_83E59E8
-	lsls r1, r3, 16
-	asrs r1, 16
-	lsls r2, 16
-	asrs r2, 16
-	movs r3, 0
-	bl CreateSprite
-	strb r0, [r5, 0x3]
-	ldr r3, _080F9768 @ =gSprites
-	ldrb r1, [r5, 0x3]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	movs r1, 0x1
-	strh r1, [r0, 0x2E]
-	ldrb r0, [r5, 0x2]
-	cmp r0, 0xFF
-	beq _080F976C
-	ldrb r0, [r5, 0x3]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5, 0x2]
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r3
-	movs r2, 0x24
-	ldrsh r0, [r0, r2]
-	negs r0, r0
-	strh r0, [r1, 0x24]
-	ldrb r0, [r5, 0x3]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	ldrb r2, [r5, 0x2]
-	lsls r0, r2, 4
-	adds r0, r2
-	lsls r0, 2
-	adds r0, r3
-	ldrh r0, [r0, 0x30]
-	b _080F9778
-	.align 2, 0
-_080F9760: .4byte gUnknown_020388C0
-_080F9764: .4byte gSpriteTemplate_83E59E8
-_080F9768: .4byte gSprites
-_080F976C:
-	ldrb r0, [r5, 0x3]
-_080F976E:
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r3
-	movs r0, 0
-_080F9778:
-	strh r0, [r1, 0x30]
-_080F977A:
-	adds r0, r4, r5
-	ldrb r1, [r0]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080F9798 @ =gSprites
-	adds r0, r1
-	movs r1, 0x1
-	ands r1, r4
-	bl StartSpriteAnim
-_080F9790:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9798: .4byte gSprites
-	thumb_func_end CreateVerticalScrollIndicators
-
-	thumb_func_start sub_80F979C
-sub_80F979C: @ 80F979C
-	push {lr}
-	lsls r0, 24
-	lsrs r2, r0, 24
-	lsls r1, 24
-	lsrs r3, r1, 24
-	cmp r2, 0x3
-	bhi _080F97D4
-	ldr r0, _080F97D8 @ =gUnknown_020388C0
-	adds r1, r2, r0
-	ldrb r0, [r1]
-	cmp r0, 0xFF
-	beq _080F97D4
-	ldr r2, _080F97DC @ =gSprites
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r2
-	adds r1, 0x3E
-	movs r0, 0x1
-	adds r2, r3, 0
-	ands r2, r0
-	lsls r2, 2
-	ldrb r3, [r1]
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r2
-	strb r0, [r1]
-_080F97D4:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F97D8: .4byte gUnknown_020388C0
-_080F97DC: .4byte gSprites
-	thumb_func_end sub_80F979C
-
-	thumb_func_start DestroyVerticalScrollIndicator
-DestroyVerticalScrollIndicator: @ 80F97E0
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x3
-	bhi _080F9808
-	ldr r0, _080F9810 @ =gUnknown_020388C0
-	adds r4, r1, r0
-	ldrb r0, [r4]
-	cmp r0, 0xFF
-	beq _080F9808
-	adds r1, r0, 0
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080F9814 @ =gSprites
-	adds r0, r1
-	bl DestroySprite
-	movs r0, 0xFF
-	strb r0, [r4]
-_080F9808:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9810: .4byte gUnknown_020388C0
-_080F9814: .4byte gSprites
-	thumb_func_end DestroyVerticalScrollIndicator
-
-	thumb_func_start LoadScrollIndicatorPalette
-LoadScrollIndicatorPalette: @ 80F9818
-	push {lr}
-	ldr r0, _080F9824 @ =gUnknown_083E5968
-	bl LoadSpritePalette
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9824: .4byte gUnknown_083E5968
-	thumb_func_end LoadScrollIndicatorPalette
-
-	thumb_func_start BuyMenuFreeMemory
-BuyMenuFreeMemory: @ 80F9828
-	push {lr}
-	movs r0, 0x6
-	bl FreeSpritePaletteByTag
-	pop {r0}
-	bx r0
-	thumb_func_end BuyMenuFreeMemory
-
-	thumb_func_start sub_80F9834
-sub_80F9834: @ 80F9834
-	push {lr}
-	adds r2, r0, 0
-	movs r1, 0x30
-	ldrsh r0, [r2, r1]
-	cmp r0, 0
-	bne _080F9848
-	ldrh r0, [r2, 0x2E]
-	ldrh r1, [r2, 0x24]
-	adds r0, r1
-	strh r0, [r2, 0x24]
-_080F9848:
-	movs r1, 0x34
-	ldrsh r0, [r2, r1]
-	cmp r0, 0
-	bne _080F9858
-	ldrh r0, [r2, 0x32]
-	ldrh r1, [r2, 0x26]
-	adds r0, r1
-	strh r0, [r2, 0x26]
-_080F9858:
-	ldrh r1, [r2, 0x30]
-	adds r1, 0x1
-	movs r3, 0
-	strh r1, [r2, 0x30]
-	ldrh r0, [r2, 0x34]
-	adds r0, 0x1
-	strh r0, [r2, 0x34]
-	lsls r1, 16
-	asrs r1, 16
-	cmp r1, 0x2
-	ble _080F9870
-	strh r3, [r2, 0x30]
-_080F9870:
-	movs r1, 0x34
-	ldrsh r0, [r2, r1]
-	cmp r0, 0x2
-	ble _080F987A
-	strh r3, [r2, 0x34]
-_080F987A:
-	movs r0, 0x24
-	ldrsh r1, [r2, r0]
-	cmp r1, 0x8
-	beq _080F988A
-	movs r0, 0x8
-	negs r0, r0
-	cmp r1, r0
-	bne _080F988C
-_080F988A:
-	strh r3, [r2, 0x24]
-_080F988C:
-	movs r0, 0x26
-	ldrsh r1, [r2, r0]
-	cmp r1, 0x8
-	beq _080F989C
-	movs r0, 0x8
-	negs r0, r0
-	cmp r1, r0
-	bne _080F98A0
-_080F989C:
-	movs r0, 0
-	strh r0, [r2, 0x26]
-_080F98A0:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80F9834
-
-	thumb_func_start sub_80F98A4
-sub_80F98A4: @ 80F98A4
-	push {lr}
-	lsls r0, 24
-	lsrs r1, r0, 24
-	ldr r0, _080F98D0 @ =gUnknown_020388C0
-	adds r3, r1, r0
-	ldrb r0, [r3]
-	cmp r0, 0xFF
-	beq _080F98CA
-	cmp r1, 0x3
-	bhi _080F98CA
-	ldr r2, _080F98D4 @ =gSprites
-	adds r1, r0, 0
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r2, 0x1C
-	adds r0, r2
-	ldr r1, _080F98D8 @ =SpriteCallbackDummy
-	str r1, [r0]
-_080F98CA:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F98D0: .4byte gUnknown_020388C0
-_080F98D4: .4byte gSprites
-_080F98D8: .4byte SpriteCallbackDummy
-	thumb_func_end sub_80F98A4
-
-	thumb_func_start StartVerticalScrollIndicators
-StartVerticalScrollIndicators: @ 80F98DC
-	push {lr}
-	lsls r0, 24
-	lsrs r1, r0, 24
-	ldr r0, _080F9908 @ =gUnknown_020388C0
-	adds r3, r1, r0
-	ldrb r0, [r3]
-	cmp r0, 0xFF
-	beq _080F9902
-	cmp r1, 0x3
-	bhi _080F9902
-	ldr r2, _080F990C @ =gSprites
-	adds r1, r0, 0
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r2, 0x1C
-	adds r0, r2
-	ldr r1, _080F9910 @ =sub_80F9834
-	str r1, [r0]
-_080F9902:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9908: .4byte gUnknown_020388C0
-_080F990C: .4byte gSprites
-_080F9910: .4byte sub_80F9834
-	thumb_func_end StartVerticalScrollIndicators
-
-	thumb_func_start sub_80F9914
-sub_80F9914: @ 80F9914
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r1, r0, 24
-	ldr r0, _080F9964 @ =gUnknown_020388C0
-	adds r4, r1, r0
-	ldrb r0, [r4]
-	cmp r0, 0xFF
-	beq _080F995C
-	cmp r1, 0x3
-	bhi _080F995C
-	ldr r3, _080F9968 @ =gSprites
-	adds r1, r0, 0
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	movs r2, 0
-	strh r2, [r0, 0x24]
-	ldrb r1, [r4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	strh r2, [r0, 0x26]
-	ldrb r1, [r4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	strh r2, [r0, 0x30]
-	ldrb r1, [r4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	strh r2, [r0, 0x34]
-_080F995C:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F9964: .4byte gUnknown_020388C0
-_080F9968: .4byte gSprites
-	thumb_func_end sub_80F9914
-
-	thumb_func_start PauseVerticalScrollIndicator
-PauseVerticalScrollIndicator: @ 80F996C
-	push {r4,lr}
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	adds r0, r4, 0
-	bl sub_80F98A4
-	adds r0, r4, 0
-	bl sub_80F9914
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end PauseVerticalScrollIndicator
-
-	thumb_func_start sub_80F9988
-sub_80F9988: @ 80F9988
-	push {lr}
-	lsls r0, 24
-	lsrs r2, r0, 24
-	lsls r1, 24
-	lsrs r3, r1, 24
-	ldr r0, _080F99C4 @ =gUnknown_020388C0
-	adds r1, r2, r0
-	ldrb r0, [r1]
-	cmp r0, 0xFF
-	beq _080F99BE
-	cmp r2, 0x3
-	bhi _080F99BE
-	ldr r2, _080F99C8 @ =gSprites
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r2
-	movs r0, 0x3
-	adds r2, r3, 0
-	ands r2, r0
-	lsls r2, 2
-	ldrb r3, [r1, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r2
-	strb r0, [r1, 0x5]
-_080F99BE:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080F99C4: .4byte gUnknown_020388C0
-_080F99C8: .4byte gSprites
-	thumb_func_end sub_80F9988
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/data/menu_helpers.s b/data/menu_helpers.s
deleted file mode 100644
index 29d42cb4b..000000000
--- a/data/menu_helpers.s
+++ /dev/null
@@ -1,102 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.section .rodata
-
-	.align 2
-gSpriteImage_83E5808:: @ 83E5808
-	.incbin "graphics/unknown_sprites/83E59A0/0.4bpp"
-
-	.align 2
-gSpriteImage_83E5848:: @ 83E5848
-	.incbin "graphics/unknown_sprites/83E59A0/1.4bpp"
-
-	.align 2
-gSpriteImage_83E5888:: @ 83E5888
-	.incbin "graphics/unknown_sprites/83E59B0/0.4bpp"
-
-	.align 2
-gSpriteImage_83E58C8:: @ 83E58C8
-	.incbin "graphics/unknown_sprites/83E59B0/1.4bpp"
-
-	.align 2
-gSpriteImage_83E5908:: @ 83E5908
-	.incbin "graphics/unknown_sprites/83E59C0/0.4bpp"
-
-	.align 2
-gSpriteImage_83E5928:: @ 83E5928
-	.incbin "graphics/unknown_sprites/83E59C0/1.4bpp"
-
-	.align 2
-Palette_3E5948: @ 83E5948
-	.incbin "graphics/interface/83E5948.gbapal"
-
-	.align 2
-gUnknown_083E5968:: @ 83E5968
-	obj_pal Palette_3E5948, 6
-
-	.align 2
-gOamData_83E5970:: @ 83E5970
-	.2byte 0x0000
-	.2byte 0x0000
-	.2byte 0x0001
-
-	.align 2
-gOamData_83E5978:: @ 83E5978
-	.2byte 0x4000
-	.2byte 0x0000
-	.2byte 0x0001
-
-	.align 2
-gOamData_83E5980:: @ 83E5980
-	.2byte 0x8000
-	.2byte 0x0000
-	.2byte 0x0001
-
-	.align 2
-gSpriteAnim_83E5988:: @ 83E5988
-	obj_image_anim_frame 0, 0
-	obj_image_anim_end
-
-	.align 2
-gSpriteAnim_83E5990:: @ 83E5990
-	obj_image_anim_frame 1, 0
-	obj_image_anim_end
-
-	.align 2
-gSpriteAnimTable_83E5998:: @ 83E5998
-	.4byte gSpriteAnim_83E5988
-	.4byte gSpriteAnim_83E5990
-
-	.align 2
-gSpriteImageTable_83E59A0:: @ 83E59A0
-	obj_frame_tiles gSpriteImage_83E5808, 0x40
-	obj_frame_tiles gSpriteImage_83E5848, 0x40
-
-	.align 2
-gSpriteImageTable_83E59B0:: @ 83E59B0
-	obj_frame_tiles gSpriteImage_83E5888, 0x40
-	obj_frame_tiles gSpriteImage_83E58C8, 0x40
-
-	.align 2
-gSpriteImageTable_83E59C0:: @ 83E59C0
-	obj_frame_tiles gSpriteImage_83E5908, 0x20
-	obj_frame_tiles gSpriteImage_83E5928, 0x20
-
-	.align 2
-gSpriteTemplate_83E59D0:: @ 83E59D0
-	spr_template 0xFFFF, 6, gOamData_83E5978, gSpriteAnimTable_83E5998, gSpriteImageTable_83E59A0, gDummySpriteAffineAnimTable, sub_80F9834
-
-	.align 2
-gSpriteTemplate_83E59E8:: @ 83E59E8
-	spr_template 0xFFFF, 6, gOamData_83E5980, gSpriteAnimTable_83E5998, gSpriteImageTable_83E59B0, gDummySpriteAffineAnimTable, sub_80F9834
-
-	.align 2
-gSpriteTemplate_83E5A00:: @ 83E5A00
-	spr_template 0xFFFF, 6, gOamData_83E5970, gSpriteAnimTable_83E5998, gSpriteImageTable_83E59C0, gDummySpriteAffineAnimTable, SpriteCallbackDummy
-
-gUnknown_083E5A18:: @ 83E5A18
-	.string "{PALETTE 0}$"
-
-gUnknown_083E5A1C:: @ 83E5A1C
-	.string "▶$"
diff --git a/include/decoration.h b/include/decoration.h
index 7a6d8ef5a..0863b4338 100644
--- a/include/decoration.h
+++ b/include/decoration.h
@@ -289,16 +289,6 @@ extern u8 sub_8134194(u8); // src/decoration_inventory
 extern bool8 sub_81341D4(void); // src/decoration_inventory
 extern void sub_8134104(u8); // src/decoration_inventory
 extern bool8 sub_807D770(void);
-extern void sub_80F944C(void); // src/menu_helpers
-extern void sub_80F9480(u8 *, u8); // src/menu_helpers
-extern void sub_80F94A4(u8, u8 *, u8, s16); // src/menu_helpers
-extern void sub_80F94F8(u8 *); // src/menu_helpers
-extern void sub_80F9520(u8 *, u8); // src/menu_helpers
-extern void DestroyVerticalScrollIndicator(u8); // src/menu_helpers
-extern void CreateVerticalScrollIndicators(u8, u8, u8); // src/menu_helpers
-extern void LoadScrollIndicatorPalette(void); // src/menu_helpers
-extern void DisplayItemMessageOnField(u8, const u8 *, TaskFunc, u16); // src/menu_helpers
-extern void BuyMenuFreeMemory(void); // src/menu_helpers
 extern void sub_8109DAC(u8); // src/trader
 extern void ReshowPlayerPC(u8); // src/player_pc
 
diff --git a/include/menu_helpers.h b/include/menu_helpers.h
index 1df5053e7..993d698bd 100644
--- a/include/menu_helpers.h
+++ b/include/menu_helpers.h
@@ -9,22 +9,31 @@ struct YesNoFuncTable
     void (*noFunc)(u8);
 };
 
+void sub_80F9020(void);
+void DisplayItemMessageOnField(u8, const u8 *, TaskFunc, u16);
 void DoYesNoFuncWithChoice(u8, const struct YesNoFuncTable *);
 void sub_80F914C(u8, const struct YesNoFuncTable *);
-void DisplayItemMessageOnField(u8, const u8 *, TaskFunc, u16);
+u8 sub_80F9284(void);
+u8 sub_80F92BC(void);
+bool8 sub_80F92F4(u16);
+bool8 sub_80F931C(u16);
 bool8 sub_80F9344(void);
-u8 sub_80F9344(void);
 void sub_80F9368(void);
 void sub_80F9438(void);
 void sub_80F944C(void);
-void CreateVerticalScrollIndicators(u8, u8, u8); // include/decoration.h
-void sub_80F979C(u32, u32); // unknown args
+void sub_80F9480(u8 *, u8);
+void sub_80F94A4(u8, u8 *, s16, s16);
+void sub_80F94F8(u8 *);
+void sub_80F9520(u8 *, u8);
+void CreateVerticalScrollIndicators(u8, u16, u16);
+void sub_80F979C(u8, bool8);
 void DestroyVerticalScrollIndicator(u8);
-void BuyMenuFreeMemory(void);
-void sub_80F98DC(int);
-void sub_80F996C(u8);
 void LoadScrollIndicatorPalette(void);
+void BuyMenuFreeMemory(void);
 void sub_80F98A4(u8);
 void StartVerticalScrollIndicators(u8);
+void sub_80F98DC(u8);
+void PauseVerticalScrollIndicator(u8);
+void sub_80F9988(u8, u8);
 
 #endif // GUARD_MENU_HELPERS_H
diff --git a/ld_script.txt b/ld_script.txt
index e4c680e96..1c83a55f0 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -172,7 +172,7 @@ SECTIONS {
         src/sound_check_menu.o(.text);
         src/secret_base.o(.text);
         asm/secret_base.o(.text_80BC1D0);
-		src/tv.o(.text);
+        src/tv.o(.text);
         asm/contest_link_80C2020.o(.text);
         src/script_pokemon_util_80C4BF0.o(.text);
         src/field_poison.o(.text);
@@ -195,7 +195,7 @@ SECTIONS {
         src/mauville_old_man.o(.text);
         asm/mauville_old_man.o(.text);
         src/mail.o(.text);
-        asm/menu_helpers.o(.text);
+        src/menu_helpers.o(.text);
         src/script_pokemon_util_80F99CC.o(.text);
         src/dewford_trend.o(.text);
         src/heal_location.o(.text);
@@ -426,7 +426,7 @@ SECTIONS {
         data/mon_markings.o(.rodata);
         data/mauville_old_man.o(.rodata);
         data/mail.o(.rodata);
-        data/menu_helpers.o(.rodata);
+        src/menu_helpers.o(.rodata);
         src/heal_location.o(.rodata);
         data/region_map.o(.rodata);
         data/cute_sketch.o(.rodata);
diff --git a/src/menu_helpers.c b/src/menu_helpers.c
new file mode 100644
index 000000000..9915d67ac
--- /dev/null
+++ b/src/menu_helpers.c
@@ -0,0 +1,572 @@
+#include "global.h"
+#include "item_menu.h"
+#include "items.h"
+#include "link.h"
+#include "mail_data.h"
+#include "main.h"
+#include "map_constants.h"
+#include "menu.h"
+#include "menu_helpers.h"
+#include "rom4.h"
+#include "songs.h"
+#include "sound.h"
+#include "sprite.h"
+#include "task.h"
+#include "text.h"
+
+#define SCROLL_INDICATOR_PAL_TAG 6
+
+static void sub_80F9834(struct Sprite *sprite);
+
+static EWRAM_DATA u8 gUnknown_020388C0[4] = {0};
+static EWRAM_DATA struct YesNoFuncTable gUnknown_020388C4 = {0};
+
+static TaskFunc gUnknown_0300074C;
+
+static const u8 gSpriteImage_83E5808[] = INCBIN_U8("graphics/unknown_sprites/83E59A0/0.4bpp");
+
+static const u8 gSpriteImage_83E5848[] = INCBIN_U8("graphics/unknown_sprites/83E59A0/1.4bpp");
+
+static const u8 gSpriteImage_83E5888[] = INCBIN_U8("graphics/unknown_sprites/83E59B0/0.4bpp");
+
+static const u8 gSpriteImage_83E58C8[] = INCBIN_U8("graphics/unknown_sprites/83E59B0/1.4bpp");
+
+static const u8 gSpriteImage_83E5908[] = INCBIN_U8("graphics/unknown_sprites/83E59C0/0.4bpp");
+
+static const u8 gSpriteImage_83E5928[] = INCBIN_U8("graphics/unknown_sprites/83E59C0/1.4bpp");
+
+static const u16 Palette_3E5948[] = INCBIN_U16("graphics/interface/83E5948.gbapal");
+
+static const struct SpritePalette gUnknown_083E5968 = { Palette_3E5948, SCROLL_INDICATOR_PAL_TAG };
+
+static const struct OamData gOamData_83E5970 =
+{
+    .tileNum = 1
+};
+
+static const struct OamData gOamData_83E5978 =
+{
+    .shape = ST_OAM_H_RECTANGLE,
+    .tileNum = 1
+};
+
+static const struct OamData gOamData_83E5980 =
+{
+    .shape = ST_OAM_V_RECTANGLE,
+    .tileNum = 1
+};
+
+static const union AnimCmd gSpriteAnim_83E5988[] =
+{
+    ANIMCMD_FRAME(0, 0),
+    ANIMCMD_END,
+};
+
+static const union AnimCmd gSpriteAnim_83E5990[] =
+{
+    ANIMCMD_FRAME(1, 0),
+    ANIMCMD_END,
+};
+
+static const union AnimCmd *const gSpriteAnimTable_83E5998[] =
+{
+    gSpriteAnim_83E5988,
+    gSpriteAnim_83E5990,
+};
+
+static const struct SpriteFrameImage gSpriteImageTable_83E59A0[] =
+{
+    { gSpriteImage_83E5808, 0x40 },
+    { gSpriteImage_83E5848, 0x40 },
+};
+
+static const struct SpriteFrameImage gSpriteImageTable_83E59B0[] =
+{
+    { gSpriteImage_83E5888, 0x40 },
+    { gSpriteImage_83E58C8, 0x40 },
+};
+
+static const struct SpriteFrameImage gSpriteImageTable_83E59C0[] =
+{
+    { gSpriteImage_83E5908, 0x20 },
+    { gSpriteImage_83E5928, 0x20 },
+};
+
+static const struct SpriteTemplate gSpriteTemplate_83E59D0 =
+{
+    .tileTag = 0xFFFF,
+    .paletteTag = SCROLL_INDICATOR_PAL_TAG,
+    .oam = &gOamData_83E5978,
+    .anims = gSpriteAnimTable_83E5998,
+    .images = gSpriteImageTable_83E59A0,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = sub_80F9834,
+};
+
+static const struct SpriteTemplate gSpriteTemplate_83E59E8 =
+{
+    .tileTag = 0xFFFF,
+    .paletteTag = SCROLL_INDICATOR_PAL_TAG,
+    .oam = &gOamData_83E5980,
+    .anims = gSpriteAnimTable_83E5998,
+    .images = gSpriteImageTable_83E59B0,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = sub_80F9834,
+};
+
+static const struct SpriteTemplate gSpriteTemplate_83E5A00 =
+{
+    .tileTag = 0xFFFF,
+    .paletteTag = SCROLL_INDICATOR_PAL_TAG,
+    .oam = &gOamData_83E5970,
+    .anims = gSpriteAnimTable_83E5998,
+    .images = gSpriteImageTable_83E59C0,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = SpriteCallbackDummy,
+};
+
+void sub_80F9020(void)
+{
+    memset(&gBGTilemapBuffers[1], 0, 0x800);
+    memset(&gBGTilemapBuffers[2], 0, 0x800);
+    memset(&gBGTilemapBuffers[3], 0, 0x800);
+}
+
+// display message box, fill box with tile if tile is not zero, print string
+static void PrintMessage(const u8 *str, u16 tile)
+{
+    MenuDisplayMessageBox();
+    if (tile)
+    {
+        sub_80A3FA0(&gBGTilemapBuffers[1][0], 2, 15, 26, 4, tile);
+    }
+    sub_8072044(str);
+}
+
+static void sub_80F9090(u8 taskId)
+{
+    if (MenuUpdateWindowText() == TRUE)
+    {
+        gUnknown_0300074C(taskId);
+    }
+}
+
+void DisplayItemMessageOnField(u8 taskId, const u8 *str, TaskFunc callback, u16 tile)
+{
+    PrintMessage(str, tile);
+    gUnknown_0300074C = callback;
+    gTasks[taskId].func = sub_80F9090;
+}
+
+static void Task_CallYesOrNoCallback(u8 taskId)
+{
+    switch (ProcessMenuInputNoWrap_())
+    {
+    case 0:
+        PlaySE(SE_SELECT);
+        gUnknown_020388C4.yesFunc(taskId);
+        break;
+    case 1:
+    case -1:
+        PlaySE(SE_SELECT);
+        gUnknown_020388C4.noFunc(taskId);
+    }
+}
+
+void DoYesNoFuncWithChoice(u8 taskId, const struct YesNoFuncTable *funcTable)
+{
+    gUnknown_020388C4 = *funcTable;
+    gTasks[taskId].func = Task_CallYesOrNoCallback;
+}
+
+static void PrintStringWithPalette(const u8 *str, u8 paletteNum, u8 left, u8 top)
+{
+    u8 paletteStr[] = _("{PALETTE 0}");
+
+    if (paletteNum != 0xFF)
+    {
+        paletteStr[2] = paletteNum;
+        StringCopy(gStringVar4, paletteStr);
+        StringAppend(gStringVar4, str);
+        paletteStr[2] = gMenuWindowPtr->paletteNum;
+        StringAppend(gStringVar4, paletteStr);
+    }
+    else
+    {
+        StringCopy(gStringVar4, str);
+    }
+
+    MenuPrint(gStringVar4, left, top);
+}
+
+// unused
+void PrintNumberWithPalette(s32 value, u8 paletteNum, u8 n, u8 mode, u8 left, u8 top)
+{
+    ConvertIntToDecimalStringN(gStringVar1, value, mode, n);
+    if (paletteNum != 0xFF)
+    {
+        PrintStringWithPalette(gStringVar1, paletteNum, left, top);
+    }
+    else
+    {
+        MenuPrint(gStringVar1, left, top);
+    }
+}
+
+// unused
+void PrintTriangleCursorWithPalette(u8 left, u8 top, u8 paletteNum)
+{
+    u8 cursorStr[] = _("▶");
+    PrintStringWithPalette(cursorStr, paletteNum, left, top);
+}
+
+u8 sub_80F9284(void)
+{
+    if (gSaveBlock2.optionsButtonMode == OPTIONS_BUTTON_MODE_LR)
+    {
+        if (gMain.newKeys & L_BUTTON)
+        {
+            return 1;
+        }
+        if (gMain.newKeys & R_BUTTON)
+        {
+            return 2;
+        }
+    }
+
+    return 0;
+}
+
+u8 sub_80F92BC(void)
+{
+    if (gSaveBlock2.optionsButtonMode == OPTIONS_BUTTON_MODE_LR)
+    {
+        if (gMain.newAndRepeatedKeys & L_BUTTON)
+        {
+            return 1;
+        }
+        if (gMain.newAndRepeatedKeys & R_BUTTON)
+        {
+            return 2;
+        }
+    }
+
+    return 0;
+}
+
+bool8 sub_80F92F4(u16 itemId)
+{
+    if (itemId != ITEM_ENIGMA_BERRY)
+    {
+        return TRUE;
+    }
+
+    if (!(gSaveBlock1.location.mapGroup == MAP_GROUP_TRADE_CENTER && gSaveBlock1.location.mapNum == MAP_ID_TRADE_CENTER))
+    {
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+bool8 sub_80F931C(u16 itemId)
+{
+    if (is_c1_link_related_active() != TRUE)
+    {
+        return TRUE;
+    }
+
+    if (ItemIsMail(itemId) != TRUE)
+    {
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+bool8 sub_80F9344(void)
+{
+    if (is_c1_link_related_active() == TRUE || gReceivedRemoteLinkPlayers == 1)
+    {
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+void sub_80F9368(void)
+{
+    u8 *addr;
+    u32 size;
+
+    REG_DISPCNT = 0;
+    REG_BG3CNT = 0;
+    REG_BG2CNT = 0;
+    REG_BG1CNT = 0;
+    REG_BG0CNT = 0;
+    REG_BG3HOFS = 0;
+    REG_BG3VOFS = 0;
+    REG_BG2HOFS = 0;
+    REG_BG2VOFS = 0;
+    REG_BG1HOFS = 0;
+    REG_BG1VOFS = 0;
+    REG_BG0HOFS = 0;
+    REG_BG0VOFS = 0;
+
+    addr = (u8 *)VRAM;
+    size = 0x18000;
+    while (1)
+    {
+        DmaFill16(3, 0, addr, 0x1000);
+        addr += 0x1000;
+        size -= 0x1000;
+        if (size <= 0x1000)
+        {
+            DmaFill16(3, 0, addr, size);
+            break;
+        }
+    }
+
+    DmaClear32(3, OAM, OAM_SIZE);
+    DmaClear16(3, PLTT, PLTT_SIZE);
+}
+
+void sub_80F9438(void)
+{
+    SetVBlankCallback(NULL);
+    SetHBlankCallback(NULL);
+}
+
+void sub_80F944C(void)
+{
+    u8 i;
+
+    for (i = 0; i < 4; i++)
+    {
+        gUnknown_020388C0[i] = 0xFF;
+    }
+
+    FreeSpritePaletteByTag(SCROLL_INDICATOR_PAL_TAG);
+    LoadSpritePalette(&gUnknown_083E5968);
+}
+
+void sub_80F9480(u8 *data, u8 n)
+{
+    u8 i;
+
+    for (i = 0; i < n; i++)
+    {
+        data[i] = 0xFF;
+    }
+}
+
+void sub_80F94A4(u8 animNum, u8 *spriteId, s16 x, s16 y)
+{
+    if (animNum <= 5)
+    {
+        if (*spriteId == 0xFF)
+        {
+            *spriteId = CreateSprite(&gSpriteTemplate_83E5A00, x, y, 0);
+        }
+        animNum -= 4;
+        StartSpriteAnim(&gSprites[*spriteId], animNum);
+    }
+}
+
+void sub_80F94F8(u8 *spriteId)
+{
+    if (*spriteId != 0xFF)
+    {
+        DestroySprite(&gSprites[*spriteId]);
+        *spriteId = 0xFF;
+    }
+}
+
+void sub_80F9520(u8 *data, u8 n)
+{
+    u8 i;
+
+    for (i = 0; i < 8; i++)
+    {
+        sub_80F94F8(&data[i]);
+    }
+}
+
+void CreateVerticalScrollIndicators(u8 id, u16 x, u16 y)
+{
+    if (id >= 4)
+    {
+        return;
+    }
+
+    switch (id)
+    {
+    case 0:
+        if (gUnknown_020388C0[0] == 0xFF)
+        {
+            gUnknown_020388C0[0] = CreateSprite(&gSpriteTemplate_83E59D0, x, y, 0);
+            gSprites[gUnknown_020388C0[0]].data2 = -1;
+            if (gUnknown_020388C0[1] != 0xFF)
+            {
+                gSprites[gUnknown_020388C0[0]].pos2.y = gSprites[gUnknown_020388C0[1]].pos2.y * -1;
+                gSprites[gUnknown_020388C0[0]].data3 = gSprites[gUnknown_020388C0[1]].data3;
+            }
+            else
+            {
+                gSprites[gUnknown_020388C0[0]].data3 = 0;
+            }
+        }
+        break;
+
+    case 1:
+        if (gUnknown_020388C0[1] == 0xFF)
+        {
+            gUnknown_020388C0[1] = CreateSprite(&gSpriteTemplate_83E59D0, x, y, 0);
+            gSprites[gUnknown_020388C0[1]].data2 = 1;
+            if (gUnknown_020388C0[0] != 0xFF)
+            {
+                gSprites[gUnknown_020388C0[1]].pos2.y = gSprites[gUnknown_020388C0[0]].pos2.y * -1;
+                gSprites[gUnknown_020388C0[1]].data3 = gSprites[gUnknown_020388C0[0]].data3;
+            }
+            else
+            {
+                gSprites[gUnknown_020388C0[1]].data3 = 0;
+            }
+        }
+        break;
+
+     case 2:
+        if (gUnknown_020388C0[2] == 0xFF)
+        {
+            gUnknown_020388C0[2] = CreateSprite(&gSpriteTemplate_83E59E8, x, y, 0);
+            gSprites[gUnknown_020388C0[2]].data0 = -1;
+            if (gUnknown_020388C0[3] != 0xFF)
+            {
+                gSprites[gUnknown_020388C0[2]].pos2.x = gSprites[gUnknown_020388C0[3]].pos2.x * -1;
+                gSprites[gUnknown_020388C0[2]].data1 = gSprites[gUnknown_020388C0[3]].data1;
+            }
+            else
+            {
+                gSprites[gUnknown_020388C0[2]].data1 = 0;
+            }
+        }
+        break;
+
+    case 3:
+        if (gUnknown_020388C0[3] == 0xFF)
+        {
+            gUnknown_020388C0[3] = CreateSprite(&gSpriteTemplate_83E59E8, x, y, 0);
+            gSprites[gUnknown_020388C0[3]].data0 = 1;
+            if (gUnknown_020388C0[2] != 0xFF)
+            {
+                gSprites[gUnknown_020388C0[3]].pos2.x = gSprites[gUnknown_020388C0[2]].pos2.x * -1;
+                gSprites[gUnknown_020388C0[3]].data1 = gSprites[gUnknown_020388C0[2]].data1;
+            }
+            else
+            {
+                gSprites[gUnknown_020388C0[3]].data1 = 0;
+            }
+        }
+        break;
+    }
+
+    StartSpriteAnim(&gSprites[gUnknown_020388C0[id]], id & 1);
+}
+
+void sub_80F979C(u8 id, bool8 invisible)
+{
+    if (id < 4 && gUnknown_020388C0[id] != 0xFF)
+    {
+        gSprites[gUnknown_020388C0[id]].invisible = invisible;
+    }
+}
+
+void DestroyVerticalScrollIndicator(u8 id)
+{
+    if (id < 4 && gUnknown_020388C0[id] != 0xFF)
+    {
+        DestroySprite(&gSprites[gUnknown_020388C0[id]]);
+        gUnknown_020388C0[id] = 0xFF;
+    }
+}
+
+void LoadScrollIndicatorPalette(void)
+{
+    LoadSpritePalette(&gUnknown_083E5968);
+}
+
+void BuyMenuFreeMemory(void)
+{
+    FreeSpritePaletteByTag(SCROLL_INDICATOR_PAL_TAG);
+}
+
+static void sub_80F9834(struct Sprite *sprite)
+{
+    if (sprite->data1 == 0)
+    {
+        sprite->pos2.x += sprite->data0;
+    }
+    if (sprite->data3 == 0)
+    {
+        sprite->pos2.y += sprite->data2;
+    }
+    sprite->data1++;
+    sprite->data3++;
+    if (sprite->data1 > 2)
+    {
+        sprite->data1 = 0;
+    }
+    if (sprite->data3 > 2)
+    {
+        sprite->data3 = 0;
+    }
+    if (sprite->pos2.x == 8 || sprite->pos2.x == -8)
+    {
+        sprite->pos2.x = 0;
+    }
+    if (sprite->pos2.y == 8 || sprite->pos2.y == -8)
+    {
+        sprite->pos2.y = 0;
+    }
+}
+
+void sub_80F98A4(u8 id)
+{
+    if (gUnknown_020388C0[id] != 0xFF && id < 4)
+    {
+        gSprites[gUnknown_020388C0[id]].callback = SpriteCallbackDummy;
+    }
+}
+
+void StartVerticalScrollIndicators(u8 id)
+{
+    if (gUnknown_020388C0[id] != 0xFF && id < 4)
+    {
+        gSprites[gUnknown_020388C0[id]].callback = sub_80F9834;
+    }
+}
+
+static void sub_80F9914(u8 id)
+{
+    if (gUnknown_020388C0[id] != 0xFF && id < 4)
+    {
+        gSprites[gUnknown_020388C0[id]].pos2.x = 0;
+        gSprites[gUnknown_020388C0[id]].pos2.y = 0;
+        gSprites[gUnknown_020388C0[id]].data1 = 0;
+        gSprites[gUnknown_020388C0[id]].data3 = 0;
+    }
+}
+
+void PauseVerticalScrollIndicator(u8 id)
+{
+    sub_80F98A4(id);
+    sub_80F9914(id);
+}
+
+void sub_80F9988(u8 id, u8 priority)
+{
+    if (gUnknown_020388C0[id] != 0xFF && id < 4)
+    {
+        gSprites[gUnknown_020388C0[id]].oam.priority = priority;
+    }
+}
diff --git a/sym_bss.txt b/sym_bss.txt
index 99dcd1392..3a00629b5 100644
--- a/sym_bss.txt
+++ b/sym_bss.txt
@@ -128,9 +128,9 @@ gUnknown_03000744: @ 3000744
 gUnknown_03000748: @ 3000748
 	.space 0x4
 
-gUnknown_0300074C: @ 300074C
-	.space 0x4
+	.include "src/menu_helpers.o"
 
+	.align 2
 gUnknown_03000750: @ 3000750
 	.space 0x2
 
diff --git a/sym_ewram.txt b/sym_ewram.txt
index 0a7cce3ef..0adf8f19b 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -752,12 +752,9 @@ gUnknown_020388B8: @ 20388B8
 gUnknown_020388BC: @ 20388BC
 	.space 0x4
 
-gUnknown_020388C0: @ 20388C0
-	.space 0x4
-
-gUnknown_020388C4: @ 20388C4
-	.space 0x8
+	.include "src/menu_helpers.o"
 
+	.align 2
 gUnknown_020388CC: @ 20388CC
 	.space 0x4