pokecrystal/engine/save.asm

SaveMenu: ; 14a1a
	call LoadStandardMenuHeader
	farcall DisplaySaveInfoOnSave
	call SpeechTextBox
	call UpdateSprites
	farcall SaveMenu_CopyTilemapAtOnce
	ld hl, Text_WouldYouLikeToSaveTheGame
	call SaveTheGame_yesorno
	jr nz, .refused
	call AskOverwriteSaveFile
	jr c, .refused
	call PauseGameLogic
	call _SavingDontTurnOffThePower
	call ResumeGameLogic
	call ExitMenu
	and a
	ret

.refused
	call ExitMenu
	call ret_d90
	farcall SaveMenu_CopyTilemapAtOnce
	scf
	ret

SaveAfterLinkTrade: ; 14a58
	call PauseGameLogic
	farcall StageRTCTimeForSave
	farcall BackupMysteryGift
	call SavePokemonData
	call SaveChecksum
	call SaveBackupPokemonData
	call SaveBackupChecksum
	farcall BackupPartyMonMail
	farcall SaveRTC
	call ResumeGameLogic
	ret
; 14a83


ChangeBoxSaveGame: ; 14a83 (5:4a83)
	push de
	ld hl, Text_SaveOnBoxSwitch
	call MenuTextBox
	call YesNoBox
	call ExitMenu
	jr c, .refused
	call AskOverwriteSaveFile
	jr c, .refused
	call PauseGameLogic
	call SavingDontTurnOffThePower
	call SaveBox
	pop de
	ld a, e
	ld [wCurBox], a
	call LoadBox
	call SavedTheGame
	call ResumeGameLogic
	and a
	ret
.refused
	pop de
	ret

Link_SaveGame: ; 14ab2
	call AskOverwriteSaveFile
	jr c, .refused
	call PauseGameLogic
	call _SavingDontTurnOffThePower
	call ResumeGameLogic
	and a

.refused
	ret
; 14ac2

MoveMonWOMail_SaveGame: ; 14ac2
	call PauseGameLogic
	push de
	call SaveBox
	pop de
	ld a, e
	ld [wCurBox], a
	call LoadBox
	call ResumeGameLogic
	ret
; 14ad5

MoveMonWOMail_InsertMon_SaveGame: ; 14ad5
	call PauseGameLogic
	push de
	call SaveBox
	pop de
	ld a, e
	ld [wCurBox], a
	ld a, $1
	ld [wSaveFileExists], a
	farcall StageRTCTimeForSave
	farcall BackupMysteryGift
	call ValidateSave
	call SaveOptions
	call SavePlayerData
	call SavePokemonData
	call SaveChecksum
	call ValidateBackupSave
	call SaveBackupOptions
	call SaveBackupPlayerData
	call SaveBackupPokemonData
	call SaveBackupChecksum
	farcall BackupPartyMonMail
	farcall BackupMobileEventIndex
	farcall SaveRTC
	call LoadBox
	call ResumeGameLogic
	ld de, SFX_SAVE
	call PlaySFX
	ld c, 24
	call DelayFrames
	ret
; 14b34

StartMoveMonWOMail_SaveGame: ; 14b34
	ld hl, Text_SaveOnMoveMonWOMail
	call MenuTextBox
	call YesNoBox
	call ExitMenu
	jr c, .refused
	call AskOverwriteSaveFile
	jr c, .refused
	call PauseGameLogic
	call _SavingDontTurnOffThePower
	call ResumeGameLogic
	and a
	ret

.refused
	scf
	ret
; 14b54

PauseGameLogic: ; 14b54
	ld a, $1
	ld [wGameLogicPaused], a
	ret
; 14b5a

ResumeGameLogic: ; 14b5a
	xor a
	ld [wGameLogicPaused], a
	ret
; 14b5f


AddHallOfFameEntry: ; 14b5f
	ld a, BANK(sHallOfFame)
	call GetSRAMBank
	ld hl, sHallOfFame + HOF_LENGTH * (NUM_HOF_TEAMS - 1) - 1
	ld de, sHallOfFame + HOF_LENGTH * NUM_HOF_TEAMS - 1
	ld bc, HOF_LENGTH * (NUM_HOF_TEAMS - 1)
.loop
	ld a, [hld]
	ld [de], a
	dec de
	dec bc
	ld a, c
	or b
	jr nz, .loop
	ld hl, wOverworldMap
	ld de, sHallOfFame
	ld bc, HOF_LENGTH
	call CopyBytes
	call CloseSRAM
	ret
; 14b85

SaveGameData: ; 14b85
	call SaveGameData_
	ret
; 14b89

AskOverwriteSaveFile: ; 14b89
	ld a, [wSaveFileExists]
	and a
	jr z, .erase
	call CompareLoadedAndSavedPlayerID
	jr z, .yoursavefile
	ld hl, Text_AnotherSaveFile
	call SaveTheGame_yesorno
	jr nz, .refused
	jr .erase

.yoursavefile
	ld hl, Text_AlreadyASaveFile
	call SaveTheGame_yesorno
	jr nz, .refused
	jr .ok

.erase
	call ErasePreviousSave

.ok
	and a
	ret

.refused
	scf
	ret
; 14baf

SaveTheGame_yesorno: ; 14baf
	ld b, BANK(Text_WouldYouLikeToSaveTheGame)
	call MapTextbox
	call LoadMenuTextBox
	lb bc, 0, 7
	call PlaceYesNoBox
	ld a, [wMenuCursorY]
	dec a
	call CloseWindow
	push af
	call ret_d90
	pop af
	and a
	ret
; 14bcb

CompareLoadedAndSavedPlayerID: ; 14bcb
	ld a, BANK(sPlayerData)
	call GetSRAMBank
	ld hl, sPlayerData + (wPlayerID - wPlayerData)
	ld a, [hli]
	ld c, [hl]
	ld b, a
	call CloseSRAM
	ld a, [wPlayerID]
	cp b
	ret nz
	ld a, [wPlayerID + 1]
	cp c
	ret
; 14be3

_SavingDontTurnOffThePower: ; 14be3
	call SavingDontTurnOffThePower
SavedTheGame: ; 14be6
	call SaveGameData_
	; wait 32 frames
	ld c, $20
	call DelayFrames
	; copy the original text speed setting to the stack
	ld a, [wOptions]
	push af
	; set text speed super slow
	ld a, 3
	ld [wOptions], a
	; <PLAYER> saved the game!
	ld hl, Text_PlayerSavedTheGame
	call PrintText
	; restore the original text speed setting
	pop af
	ld [wOptions], a
	ld de, SFX_SAVE
	call WaitPlaySFX
	call WaitSFX
	; wait 30 frames
	ld c, $1e
	call DelayFrames
	ret
; 14c10


SaveGameData_: ; 14c10
	ld a, 1
	ld [wSaveFileExists], a
	farcall StageRTCTimeForSave
	farcall BackupMysteryGift
	call ValidateSave
	call SaveOptions
	call SavePlayerData
	call SavePokemonData
	call SaveBox
	call SaveChecksum
	call ValidateBackupSave
	call SaveBackupOptions
	call SaveBackupPlayerData
	call SaveBackupPokemonData
	call SaveBackupChecksum
	call UpdateStackTop
	farcall BackupPartyMonMail
	farcall BackupMobileEventIndex
	farcall SaveRTC
	ld a, BANK(sBattleTowerChallengeState)
	call GetSRAMBank
	ld a, [sBattleTowerChallengeState]
	cp BATTLETOWER_RECEIVED_REWARD
	jr nz, .ok
	xor a
	ld [sBattleTowerChallengeState], a
.ok
	call CloseSRAM
	ret
; 14c6b

UpdateStackTop: ; 14c6b
; sStackTop appears to be unused.
; It could have been used to debug stack overflow during saving.
	call FindStackTop
	ld a, BANK(sStackTop)
	call GetSRAMBank
	ld a, [sStackTop + 0]
	ld e, a
	ld a, [sStackTop + 1]
	ld d, a
	or e
	jr z, .update
	ld a, e
	sub l
	ld a, d
	sbc h
	jr c, .done

.update
	ld a, l
	ld [sStackTop + 0], a
	ld a, h
	ld [sStackTop + 1], a

.done
	call CloseSRAM
	ret
; 14c90

FindStackTop: ; 14c90
; Find the furthest point that sp has traversed to.
; This is distinct from the current value of sp.
	ld hl, wStack - $ff
.loop
	ld a, [hl]
	or a
	ret nz
	inc hl
	jr .loop
; 14c99

SavingDontTurnOffThePower: ; 14c99
	; Prevent joypad interrupts
	xor a
	ld [hJoypadReleased], a
	ld [hJoypadPressed], a
	ld [hJoypadSum], a
	ld [hJoypadDown], a
	; Save the text speed setting to the stack
	ld a, [wOptions]
	push af
	; Set the text speed to super slow
	ld a, $3
	ld [wOptions], a
	; SAVING... DON'T TURN OFF THE POWER.
	ld hl, Text_SavingDontTurnOffThePower
	call PrintText
	; Restore the text speed setting
	pop af
	ld [wOptions], a
	; Wait for 16 frames
	ld c, $10
	call DelayFrames
	ret
; 14cbb


ErasePreviousSave: ; 14cbb
	call EraseBoxes
	call EraseHallOfFame
	call EraseLinkBattleStats
	call EraseMysteryGift
	call SaveData
	call EraseBattleTowerStatus
	ld a, BANK(sStackTop)
	call GetSRAMBank
	xor a
	ld [sStackTop + 0], a
	ld [sStackTop + 1], a
	call CloseSRAM
	ld a, $1
	ld [wSavedAtLeastOnce], a
	ret
; 14ce2

EraseLinkBattleStats: ; 14ce2
	ld a, BANK(sLinkBattleStats)
	call GetSRAMBank
	ld hl, sLinkBattleStats
	ld bc, sLinkBattleStatsEnd - sLinkBattleStats
	xor a
	call ByteFill
	jp CloseSRAM
; 14cf4

EraseMysteryGift: ; 14cf4
	ld a, BANK(sBackupMysteryGiftItem)
	call GetSRAMBank
	ld hl, sBackupMysteryGiftItem
	ld bc, sBackupMysteryGiftItemEnd - sBackupMysteryGiftItem
	xor a
	call ByteFill
	jp CloseSRAM
; 14d06

EraseHallOfFame: ; 14d06
	ld a, BANK(sHallOfFame)
	call GetSRAMBank
	ld hl, sHallOfFame
	ld bc, sHallOfFameEnd - sHallOfFame
	xor a
	call ByteFill
	jp CloseSRAM
; 14d18

Unreferenced_Function14d18: ; 14d18
; copy .Data to SRA4:a007
	ld a, 4 ; MBC30 bank used by JP Crystal; inaccessible by MBC3
	call GetSRAMBank
	ld hl, .Data
	ld de, $a007 ; address of MBC30 bank
	ld bc, .DataEnd - .Data
	call CopyBytes
	jp CloseSRAM
; 14d2c

.Data: ; 14d2c
	db $0d, $02, $00, $05, $00, $00
	db $22, $02, $01, $05, $00, $00
	db $03, $04, $05, $08, $03, $05
	db $0e, $06, $03, $02, $00, $00
	db $39, $07, $07, $04, $00, $05
	db $04, $07, $01, $05, $00, $00
	db $0f, $05, $14, $07, $05, $05
	db $11, $0c, $0c, $06, $06, $04
; 14d5c
.DataEnd

EraseBattleTowerStatus: ; 14d5c
	ld a, BANK(sBattleTowerChallengeState)
	call GetSRAMBank
	xor a
	ld [sBattleTowerChallengeState], a
	jp CloseSRAM
; 14d68

SaveData: ; 14d68
	call _SaveData
	ret
; 14d6c

Unreferenced_Function14d6c: ; 14d6c
	ld a, 4 ; MBC30 bank used by JP Crystal; inaccessible by MBC3
	call GetSRAMBank
	ld a, [$a60b] ; address of MBC30 bank
	ld b, $0
	and a
	jr z, .ok
	ld b, $2

.ok
	ld a, b
	ld [$a60b], a ; address of MBC30 bank
	call CloseSRAM
	ret
; 14d83

Unreferenced_Function14d83: ; 14d83
	ld a, 4 ; MBC30 bank used by JP Crystal; inaccessible by MBC3
	call GetSRAMBank
	xor a
	ld [$a60c], a ; address of MBC30 bank
	ld [$a60d], a ; address of MBC30 bank
	call CloseSRAM
	ret
; 14d93

Unreferenced_Function14d93: ; 14d93
	ld a, 7 ; MBC30 bank used by JP Crystal; inaccessible by MBC3
	call GetSRAMBank
	xor a
	ld [$a000], a ; address of MBC30 bank
	call CloseSRAM
	ret
; 14da0


HallOfFame_InitSaveIfNeeded: ; 14da0
	ld a, [wSavedAtLeastOnce]
	and a
	ret nz
	call ErasePreviousSave
	ret
; 14da9

ValidateSave: ; 14da9
	ld a, BANK(sCheckValue1) ; BANK(sCheckValue2)
	call GetSRAMBank
	ld a, SAVE_CHECK_VALUE_1
	ld [sCheckValue1], a
	ld a, SAVE_CHECK_VALUE_2
	ld [sCheckValue2], a
	jp CloseSRAM
; 14dbb

SaveOptions: ; 14dbb
	ld a, BANK(sOptions)
	call GetSRAMBank
	ld hl, wOptions
	ld de, sOptions
	ld bc, wOptionsEnd - wOptions
	call CopyBytes
	ld a, [wOptions]
	and $ff ^ (1 << NO_TEXT_SCROLL)
	ld [sOptions], a
	jp CloseSRAM
; 14dd7

SavePlayerData: ; 14dd7
	ld a, BANK(sPlayerData)
	call GetSRAMBank
	ld hl, wPlayerData
	ld de, sPlayerData
	ld bc, wPlayerDataEnd - wPlayerData
	call CopyBytes
	ld hl, wCurrMapData
	ld de, sCurrMapData
	ld bc, wCurrMapDataEnd - wCurrMapData
	call CopyBytes
	jp CloseSRAM
; 14df7

SavePokemonData: ; 14df7
	ld a, BANK(sPokemonData)
	call GetSRAMBank
	ld hl, wPokemonData
	ld de, sPokemonData
	ld bc, wPokemonDataEnd - wPokemonData
	call CopyBytes
	call CloseSRAM
	ret
; 14e0c

SaveBox: ; 14e0c
	call GetBoxAddress
	call SaveBoxAddress
	ret
; 14e13

SaveChecksum: ; 14e13
	ld hl, sGameData
	ld bc, sGameDataEnd - sGameData
	ld a, BANK(sGameData)
	call GetSRAMBank
	call Checksum
	ld a, e
	ld [sChecksum + 0], a
	ld a, d
	ld [sChecksum + 1], a
	call CloseSRAM
	ret
; 14e2d

ValidateBackupSave: ; 14e2d
	ld a, BANK(sBackupCheckValue1) ; BANK(sBackupCheckValue2)
	call GetSRAMBank
	ld a, SAVE_CHECK_VALUE_1
	ld [sBackupCheckValue1], a
	ld a, SAVE_CHECK_VALUE_2
	ld [sBackupCheckValue2], a
	call CloseSRAM
	ret
; 14e40

SaveBackupOptions: ; 14e40
	ld a, BANK(sBackupOptions)
	call GetSRAMBank
	ld hl, wOptions
	ld de, sBackupOptions
	ld bc, wOptionsEnd - wOptions
	call CopyBytes
	call CloseSRAM
	ret
; 14e55

SaveBackupPlayerData: ; 14e55
	ld a, BANK(sBackupPlayerData)
	call GetSRAMBank
	ld hl, wPlayerData
	ld de, sBackupPlayerData
	ld bc, wPlayerDataEnd - wPlayerData
	call CopyBytes
	ld hl, wCurrMapData
	ld de, sBackupCurrMapData
	ld bc, wCurrMapDataEnd - wCurrMapData
	call CopyBytes
	call CloseSRAM
	ret
; 14e76

SaveBackupPokemonData: ; 14e76
	ld a, BANK(sBackupPokemonData)
	call GetSRAMBank
	ld hl, wPokemonData
	ld de, sBackupPokemonData
	ld bc, wPokemonDataEnd - wPokemonData
	call CopyBytes
	call CloseSRAM
	ret
; 14e8b

SaveBackupChecksum: ; 14e8b
	ld hl, sBackupGameData
	ld bc, sBackupGameDataEnd - sBackupGameData
	ld a, BANK(sBackupGameData)
	call GetSRAMBank
	call Checksum
	ld a, e
	ld [sBackupChecksum + 0], a
	ld a, d
	ld [sBackupChecksum + 1], a
	call CloseSRAM
	ret
; 14ea5


TryLoadSaveFile: ; 14ea5 (5:4ea5)
	call VerifyChecksum
	jr nz, .backup
	call LoadPlayerData
	call LoadPokemonData
	call LoadBox
	farcall RestorePartyMonMail
	farcall RestoreMobileEventIndex
	farcall RestoreMysteryGift
	call ValidateBackupSave
	call SaveBackupOptions
	call SaveBackupPlayerData
	call SaveBackupPokemonData
	call SaveBackupChecksum
	and a
	ret

.backup
	call VerifyBackupChecksum
	jr nz, .corrupt
	call LoadBackupPlayerData
	call LoadBackupPokemonData
	call LoadBox
	farcall RestorePartyMonMail
	farcall RestoreMobileEventIndex
	farcall RestoreMysteryGift
	call ValidateSave
	call SaveOptions
	call SavePlayerData
	call SavePokemonData
	call SaveChecksum
	and a
	ret

.corrupt
	ld a, [wOptions]
	push af
	set NO_TEXT_SCROLL, a
	ld [wOptions], a
	ld hl, Text_SaveFileCorrupted
	call PrintText
	pop af
	ld [wOptions], a
	scf
	ret


TryLoadSaveData: ; 14f1c
	xor a
	ld [wSaveFileExists], a
	call CheckPrimarySaveFile
	ld a, [wSaveFileExists]
	and a
	jr z, .backup

	ld a, BANK(sPlayerData)
	call GetSRAMBank
	ld hl, sPlayerData + wStartDay - wPlayerData
	ld de, wStartDay
	ld bc, 8
	call CopyBytes
	ld hl, sPlayerData + wStatusFlags - wPlayerData
	ld de, wStatusFlags
	ld a, [hl]
	ld [de], a
	call CloseSRAM
	ret

.backup
	call CheckBackupSaveFile
	ld a, [wSaveFileExists]
	and a
	jr z, .corrupt

	ld a, BANK(sBackupPlayerData)
	call GetSRAMBank
	ld hl, sBackupPlayerData + wStartDay - wPlayerData
	ld de, wStartDay
	ld bc, 8
	call CopyBytes
	ld hl, sBackupPlayerData + wStatusFlags - wPlayerData
	ld de, wStatusFlags
	ld a, [hl]
	ld [de], a
	call CloseSRAM
	ret

.corrupt
	ld hl, DefaultOptions
	ld de, wOptions
	ld bc, wOptionsEnd - wOptions
	call CopyBytes
	call PanicResetClock
	ret
; 14f7c


INCLUDE "data/default_options.asm"


CheckPrimarySaveFile: ; 14f84
	ld a, BANK(sCheckValue1) ; BANK(sCheckValue2)
	call GetSRAMBank
	ld a, [sCheckValue1]
	cp SAVE_CHECK_VALUE_1
	jr nz, .nope
	ld a, [sCheckValue2]
	cp SAVE_CHECK_VALUE_2
	jr nz, .nope
	ld hl, sOptions
	ld de, wOptions
	ld bc, wOptionsEnd - wOptions
	call CopyBytes
	call CloseSRAM
	ld a, $1
	ld [wSaveFileExists], a

.nope
	call CloseSRAM
	ret
; 14faf

CheckBackupSaveFile: ; 14faf
	ld a, BANK(sBackupCheckValue1) ; BANK(sBackupCheckValue2)
	call GetSRAMBank
	ld a, [sBackupCheckValue1]
	cp SAVE_CHECK_VALUE_1
	jr nz, .nope
	ld a, [sBackupCheckValue2]
	cp SAVE_CHECK_VALUE_2
	jr nz, .nope
	ld hl, sBackupOptions
	ld de, wOptions
	ld bc, wOptionsEnd - wOptions
	call CopyBytes
	ld a, $2
	ld [wSaveFileExists], a

.nope
	call CloseSRAM
	ret
; 14fd7


LoadPlayerData: ; 14fd7 (5:4fd7)
	ld a, BANK(sPlayerData)
	call GetSRAMBank
	ld hl, sPlayerData
	ld de, wPlayerData
	ld bc, wPlayerDataEnd - wPlayerData
	call CopyBytes
	ld hl, sCurrMapData
	ld de, wCurrMapData
	ld bc, wCurrMapDataEnd - wCurrMapData
	call CopyBytes
	call CloseSRAM
	ld a, BANK(sBattleTowerChallengeState)
	call GetSRAMBank
	ld a, [sBattleTowerChallengeState]
	cp BATTLETOWER_RECEIVED_REWARD
	jr nz, .not_4
	ld a, BATTLETOWER_WON_CHALLENGE
	ld [sBattleTowerChallengeState], a
.not_4
	call CloseSRAM
	ret

LoadPokemonData: ; 1500c
	ld a, BANK(sPokemonData)
	call GetSRAMBank
	ld hl, sPokemonData
	ld de, wPokemonData
	ld bc, wPokemonDataEnd - wPokemonData
	call CopyBytes
	call CloseSRAM
	ret
; 15021

LoadBox: ; 15021 (5:5021)
	call GetBoxAddress
	call LoadBoxAddress
	ret

VerifyChecksum: ; 15028 (5:5028)
	ld hl, sGameData
	ld bc, sGameDataEnd - sGameData
	ld a, BANK(sGameData)
	call GetSRAMBank
	call Checksum
	ld a, [sChecksum + 0]
	cp e
	jr nz, .fail
	ld a, [sChecksum + 1]
	cp d
.fail
	push af
	call CloseSRAM
	pop af
	ret

LoadBackupPlayerData: ; 15046 (5:5046)
	ld a, BANK(sBackupPlayerData)
	call GetSRAMBank
	ld hl, sBackupPlayerData
	ld de, wPlayerData
	ld bc, wPlayerDataEnd - wPlayerData
	call CopyBytes
	ld hl, sBackupCurrMapData
	ld de, wCurrMapData
	ld bc, wCurrMapDataEnd - wCurrMapData
	call CopyBytes
	call CloseSRAM
	ret

LoadBackupPokemonData: ; 15067 (5:5067)
	ld a, BANK(sBackupPokemonData)
	call GetSRAMBank
	ld hl, sBackupPokemonData
	ld de, wPokemonData
	ld bc, wPokemonDataEnd - wPokemonData
	call CopyBytes
	call CloseSRAM
	ret

VerifyBackupChecksum: ; 1507c (5:507c)
	ld hl, sBackupGameData
	ld bc, sBackupGameDataEnd - sBackupGameData
	ld a, BANK(sBackupGameData)
	call GetSRAMBank
	call Checksum
	ld a, [sBackupChecksum + 0]
	cp e
	jr nz, .fail
	ld a, [sBackupChecksum + 1]
	cp d
.fail
	push af
	call CloseSRAM
	pop af
	ret


_SaveData: ; 1509a
	; This is called within two scenarios:
	;   a) ErasePreviousSave (the process of erasing the save from a previous game file)
	;   b) unused mobile functionality
	; It is not part of a regular save.

	ld a, BANK(sCrystalData)
	call GetSRAMBank
	ld hl, wCrystalData
	ld de, sCrystalData
	ld bc, wCrystalDataEnd - wCrystalData
	call CopyBytes

	; This block originally had some mobile functionality, but since we're still in
	; BANK(sCrystalData), it instead overwrites the sixteen wEventFlags starting at 1:a603 with
	; garbage from wd479. This isn't an issue, since ErasePreviousSave is followed by a regular
	; save that unwrites the garbage.

	ld hl, wd479
	ld a, [hli]
	ld [$a60e + 0], a
	ld a, [hli]
	ld [$a60e + 1], a

	jp CloseSRAM


_LoadData: ; 150b9
	ld a, BANK(sCrystalData)
	call GetSRAMBank
	ld hl, sCrystalData
	ld de, wCrystalData
	ld bc, wCrystalDataEnd - wCrystalData
	call CopyBytes

	; This block originally had some mobile functionality to mirror _SaveData above, but instead it
	; (harmlessly) writes the aforementioned wEventFlags to the unused wd479.

	ld hl, wd479
	ld a, [$a60e + 0]
	ld [hli], a
	ld a, [$a60e + 1]
	ld [hli], a

	jp CloseSRAM


GetBoxAddress: ; 150d8
	ld a, [wCurBox]
	cp NUM_BOXES
	jr c, .ok
	xor a
	ld [wCurBox], a

.ok
	ld e, a
	ld d, 0
	ld hl, BoxAddresses
rept 5
	add hl, de
endr
	ld a, [hli]
	push af
	ld a, [hli]
	ld e, a
	ld a, [hli]
	ld d, a
	ld a, [hli]
	ld h, [hl]
	ld l, a
	pop af
	ret
; 150f9

SaveBoxAddress: ; 150f9
; Save box via wMisc.
; We do this in three steps because the size of wMisc is less than
; the size of sBox.
	push hl
; Load the first part of the active box.
	push af
	push de
	ld a, BANK(sBox)
	call GetSRAMBank
	ld hl, sBox
	ld de, wMisc
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM
	pop de
	pop af
; Save it to the target box.
	push af
	push de
	call GetSRAMBank
	ld hl, wMisc
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM

; Load the second part of the active box.
	ld a, BANK(sBox)
	call GetSRAMBank
	ld hl, sBox + (wMiscEnd - wMisc)
	ld de, wMisc
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM
	pop de
	pop af

	ld hl, (wMiscEnd - wMisc)
	add hl, de
	ld e, l
	ld d, h
; Save it to the next part of the target box.
	push af
	push de
	call GetSRAMBank
	ld hl, wMisc
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM

; Load the third and final part of the active box.
	ld a, BANK(sBox)
	call GetSRAMBank
	ld hl, sBox + (wMiscEnd - wMisc) * 2
	ld de, wMisc
	ld bc, sBoxEnd - (sBox + (wMiscEnd - wMisc) * 2) ; $8e
	call CopyBytes
	call CloseSRAM
	pop de
	pop af

	ld hl, (wMiscEnd - wMisc)
	add hl, de
	ld e, l
	ld d, h
; Save it to the final part of the target box.
	call GetSRAMBank
	ld hl, wMisc
	ld bc, sBoxEnd - (sBox + (wMiscEnd - wMisc) * 2) ; $8e
	call CopyBytes
	call CloseSRAM

	pop hl
	ret
; 1517d


LoadBoxAddress: ; 1517d (5:517d)
; Load box via wMisc.
; We do this in three steps because the size of wMisc is less than
; the size of sBox.
	push hl
	ld l, e
	ld h, d
; Load part 1
	push af
	push hl
	call GetSRAMBank
	ld de, wMisc
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM
	ld a, BANK(sBox)
	call GetSRAMBank
	ld hl, wMisc
	ld de, sBox
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM
	pop hl
	pop af

	ld de, (wMiscEnd - wMisc)
	add hl, de
; Load part 2
	push af
	push hl
	call GetSRAMBank
	ld de, wMisc
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM
	ld a, BANK(sBox)
	call GetSRAMBank
	ld hl, wMisc
	ld de, sBox + (wMiscEnd - wMisc)
	ld bc, (wMiscEnd - wMisc)
	call CopyBytes
	call CloseSRAM
	pop hl
	pop af
; Load part 3
	ld de, (wMiscEnd - wMisc)
	add hl, de
	call GetSRAMBank
	ld de, wMisc
	ld bc, sBoxEnd - (sBox + (wMiscEnd - wMisc) * 2) ; $8e
	call CopyBytes
	call CloseSRAM
	ld a, BANK(sBox)
	call GetSRAMBank
	ld hl, wMisc
	ld de, sBox + (wMiscEnd - wMisc) * 2
	ld bc, sBoxEnd - (sBox + (wMiscEnd - wMisc) * 2) ; $8e
	call CopyBytes
	call CloseSRAM

	pop hl
	ret


EraseBoxes: ; 151fb
	ld hl, BoxAddresses
	ld c, NUM_BOXES
.next
	push bc
	ld a, [hli]
	call GetSRAMBank
	ld a, [hli]
	ld e, a
	ld a, [hli]
	ld d, a
	xor a
	ld [de], a
	inc de
	ld a, -1
	ld [de], a
	inc de
	ld bc, sBoxEnd - (sBox + 2)
.clear
	xor a
	ld [de], a
	inc de
	dec bc
	ld a, b
	or c
	jr nz, .clear
	ld a, [hli]
	ld e, a
	ld a, [hli]
	ld d, a
	ld a, -1
	ld [de], a
	inc de
	xor a
	ld [de], a
	call CloseSRAM
	pop bc
	dec c
	jr nz, .next
	ret
; 1522d

BoxAddresses: ; 1522d
; dbww bank, address, address
	dbww BANK(sBox1),  sBox1,  sBox1End
	dbww BANK(sBox2),  sBox2,  sBox2End
	dbww BANK(sBox3),  sBox3,  sBox3End
	dbww BANK(sBox4),  sBox4,  sBox4End
	dbww BANK(sBox5),  sBox5,  sBox5End
	dbww BANK(sBox6),  sBox6,  sBox6End
	dbww BANK(sBox7),  sBox7,  sBox7End
	dbww BANK(sBox8),  sBox8,  sBox8End
	dbww BANK(sBox9),  sBox9,  sBox9End
	dbww BANK(sBox10), sBox10, sBox10End
	dbww BANK(sBox11), sBox11, sBox11End
	dbww BANK(sBox12), sBox12, sBox12End
	dbww BANK(sBox13), sBox13, sBox13End
	dbww BANK(sBox14), sBox14, sBox14End
; 15273


Checksum: ; 15273
	ld de, 0
.loop
	ld a, [hli]
	add e
	ld e, a
	ld a, 0
	adc d
	ld d, a
	dec bc
	ld a, b
	or c
	jr nz, .loop
	ret
; 15283


Text_WouldYouLikeToSaveTheGame: ; 0x15283
	; Would you like to save the game?
	text_jump UnknownText_0x1c454b
	db "@"
; 0x15288

Text_SavingDontTurnOffThePower: ; 0x15288
	; SAVING… DON'T TURN OFF THE POWER.
	text_jump UnknownText_0x1c456d
	db "@"
; 0x1528d

Text_PlayerSavedTheGame: ; 0x1528d
	; saved the game.
	text_jump UnknownText_0x1c4590
	db "@"
; 0x15292

Text_AlreadyASaveFile: ; 0x15292
	; There is already a save file. Is it OK to overwrite?
	text_jump UnknownText_0x1c45a3
	db "@"
; 0x15297

Text_AnotherSaveFile: ; 0x15297
	; There is another save file. Is it OK to overwrite?
	text_jump UnknownText_0x1c45d9
	db "@"
; 0x1529c

Text_SaveFileCorrupted: ; 0x1529c
	; The save file is corrupted!
	text_jump UnknownText_0x1c460d
	db "@"
; 0x152a1

Text_SaveOnBoxSwitch: ; 0x152a1
	; When you change a #MON BOX, data will be saved. OK?
	text_jump UnknownText_0x1c462a
	db "@"
; 0x152a6

Text_SaveOnMoveMonWOMail: ; 0x152a6
	; Each time you move a #MON, data will be saved. OK?
	text_jump UnknownText_0x1c465f
	db "@"
; 0x152ab