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Document remainder of save.c

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This commit is contained in:
GriffinR 2021-10-28 22:54:41 -04:00
parent ab1074e629
commit adf773f1ed
18 changed files with 428 additions and 364 deletions
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6
common_syms/save.txt
View File

@ -3,11 +3,11 @@ gLastSaveCounter
gLastKnownGoodSector
gDamagedSaveSectors
gSaveCounter
gFastSaveSection
gUnknown_03006208
gReadWriteSector
gIncrementalSectorId
gSaveUnusedVar
gSaveFileStatus
gGameContinueCallback
gRamSaveSectionLocations
gRamSaveSectorLocations
gSaveUnusedVar2
gSaveAttemptStatus

4
include/load_save.h
View File

@ -24,8 +24,8 @@ void SavePlayerParty(void);
void LoadPlayerParty(void);
void SaveObjectEvents(void);
void LoadObjectEvents(void);
void SaveSerializedGame(void);
void LoadSerializedGame(void);
void CopyPartyAndObjectsToSave(void);
void CopyPartyAndObjectsFromSave(void);
void LoadPlayerBag(void);
void SavePlayerBag(void);
void ApplyNewEncryptionKeyToHword(u16 *hWord, u32 newKey);

131
include/save.h
View File

@ -1,63 +1,18 @@
#ifndef GUARD_SAVE_H
#define GUARD_SAVE_H
struct SaveSectionLocation
{
void *data;
u16 size;
};
struct SaveSection
{
u8 data[0xFF4];
u16 id;
u16 checksum;
u32 security;
u32 counter;
}; // size is 0x1000
// headless save section?
struct UnkSaveSection
{
u8 data[0xFF4];
u32 security;
}; // size is 0xFF8
struct SaveSectionOffsets
{
u16 toAdd;
u16 size;
};
// Each 4 KiB flash sector contains 3968 bytes of actual data followed by a 128 byte footer
// Each 4 KiB flash sector contains 3968 bytes of actual data followed by a 128 byte footer.
// Only 12 bytes of the footer are used.
#define SECTOR_DATA_SIZE 3968
#define SECTOR_FOOTER_SIZE 128
#define SECTOR_SIZE (SECTOR_DATA_SIZE + SECTOR_FOOTER_SIZE)
#define NUM_SAVE_SLOTS 2
#define UNKNOWN_CHECK_VALUE 0x8012025
#define SPECIAL_SECTION_SENTINEL 0xB39D
// If the sector's security field is not this value then the sector is either invalid or empty.
#define SECTOR_SECURITY_NUM 0x8012025
// SetDamagedSectorBits states
enum
{
ENABLE,
DISABLE,
CHECK // unused
};
// Do save types
enum
{
SAVE_NORMAL,
SAVE_LINK,
//EREADER_SAVE, // deprecated in Emerald
SAVE_LINK2, // unknown 2nd link save
SAVE_HALL_OF_FAME,
SAVE_OVERWRITE_DIFFERENT_FILE,
SAVE_HALL_OF_FAME_ERASE_BEFORE // unused
};
#define SPECIAL_SECTOR_SENTINEL 0xB39D
#define SECTOR_ID_SAVEBLOCK2 0
#define SECTOR_ID_SAVEBLOCK1_START 1
@ -72,41 +27,87 @@ enum
#define SECTOR_ID_RECORDED_BATTLE 31
#define SECTORS_COUNT 32
#define NUM_HOF_SECTORS 2
#define SAVE_STATUS_EMPTY 0
#define SAVE_STATUS_OK 1
#define SAVE_STATUS_CORRUPT 2
#define SAVE_STATUS_NO_FLASH 4
#define SAVE_STATUS_ERROR 0xFF
// Special sector id value for certain save functions to
// indicate that no specific sector should be used.
#define FULL_SAVE_SLOT 0xFFFF
// SetDamagedSectorBits states
enum
{
ENABLE,
DISABLE,
CHECK // unused
};
// Do save types
enum
{
SAVE_NORMAL,
SAVE_LINK, // Link / Battle Frontier
//EREADER_SAVE, // deprecated in Emerald
SAVE_LINK2, // unknown 2nd link save
SAVE_HALL_OF_FAME,
SAVE_OVERWRITE_DIFFERENT_FILE,
SAVE_HALL_OF_FAME_ERASE_BEFORE // unused
};
// A save sector location holds a pointer to the data for a particular sector
// and the size of that data. Size cannot be greater than SECTOR_DATA_SIZE.
struct SaveSectorLocation
{
void *data;
u16 size;
};
struct SaveSector
{
u8 data[SECTOR_DATA_SIZE];
u8 unused[SECTOR_FOOTER_SIZE - 12]; // Unused portion of the footer
u16 id;
u16 checksum;
u32 security;
u32 counter;
}; // size is SECTOR_SIZE (0x1000)
#define SECTOR_SECURITY_OFFSET offsetof(struct SaveSector, security)
#define SECTOR_COUNTER_OFFSET offsetof(struct SaveSector, counter)
extern u16 gLastWrittenSector;
extern u32 gLastSaveCounter;
extern u16 gLastKnownGoodSector;
extern u32 gDamagedSaveSectors;
extern u32 gSaveCounter;
extern struct SaveSection *gFastSaveSection;
extern u16 gUnknown_03006208;
extern struct SaveSector *gFastSaveSector;
extern u16 gIncrementalSectorId;
extern u16 gSaveFileStatus;
extern void (*gGameContinueCallback)(void);
extern struct SaveSectionLocation gRamSaveSectionLocations[];
extern u16 gUnknown_03006294;
extern struct SaveSectorLocation gRamSaveSectorLocations[];
extern struct SaveSection gSaveDataBuffer;
extern struct SaveSector gSaveDataBuffer;
void ClearSaveData(void);
void Save_ResetSaveCounters(void);
u8 HandleSavingData(u8 saveType);
u8 TrySavingData(u8 saveType);
bool8 sub_8153380(void);
bool8 sub_81533AC(void);
bool8 sub_81533E0(void);
bool8 sub_8153408(void);
bool8 FullSaveGame(void);
bool8 CheckSaveFile(void);
u8 Save_LoadGameData(u8 saveType);
bool8 LinkFullSave_Init(void);
bool8 LinkFullSave_WriteSector(void);
bool8 LinkFullSave_ReplaceLastSector(void);
bool8 LinkFullSave_SetLastSectorSecurity(void);
bool8 WriteSaveBlock2(void);
bool8 WriteSaveBlock1Sector(void);
u8 LoadGameSave(u8 saveType);
u16 GetSaveBlocksPointersBaseOffset(void);
u32 TryReadSpecialSaveSection(u8 sector, u8* dst);
u32 TryWriteSpecialSaveSection(u8 sector, u8* src);
void Task_LinkSave(u8 taskId);
u32 TryReadSpecialSaveSector(u8 sector, u8* dst);
u32 TryWriteSpecialSaveSector(u8 sector, u8* src);
void Task_LinkFullSave(u8 taskId);
// save_failed_screen.c
void DoSaveFailedScreen(u8 saveType);

4
src/berry_blender.c
View File

@ -2785,7 +2785,7 @@ static bool8 LinkPlayAgainHandleSaving(void)
}
break;
case 2:
FullSaveGame();
WriteSaveBlock2();
sBerryBlender->linkPlayAgainState++;
sBerryBlender->framesToWait = 0;
break;
@ -2799,7 +2799,7 @@ static bool8 LinkPlayAgainHandleSaving(void)
case 4:
if (IsLinkTaskFinished())
{
if (CheckSaveFile())
if (WriteSaveBlock1Sector())
{
sBerryBlender->linkPlayAgainState = 5;
}

4
src/berry_crush.c
View File

@ -3244,10 +3244,10 @@ static u32 Cmd_SaveGame(struct BerryCrushGame *game, u8 *args)
DrawDialogueFrame(0, 0);
AddTextPrinterParameterized2(0, FONT_NORMAL, gText_SavingDontTurnOffPower, 0, 0, 2, 1, 3);
CopyWindowToVram(0, 3);
CreateTask(Task_LinkSave, 0);
CreateTask(Task_LinkFullSave, 0);
break;
case 3:
if (FuncIsActiveTask(Task_LinkSave))
if (FuncIsActiveTask(Task_LinkFullSave))
return 0;
break;
case 4:

4
src/dodrio_berry_picking.c
View File

@ -5035,12 +5035,12 @@ static void Msg_SavingDontTurnOff(void)
case 2:
if (!IsDma3ManagerBusyWithBgCopy())
{
CreateTask(Task_LinkSave, 0);
CreateTask(Task_LinkFullSave, 0);
sGfx->state++;
}
break;
case 3:
if (!FuncIsActiveTask(Task_LinkSave))
if (!FuncIsActiveTask(Task_LinkFullSave))
sGfx->state++;
break;
default:

4
src/ereader_helpers.c
View File

@ -481,7 +481,7 @@ static bool32 TryWriteTrainerHill_Internal(struct EReaderTrainerHillSet * hillSe
}
hillTag->checksum = CalcByteArraySum((u8 *)hillTag->floors, NUM_TRAINER_HILL_FLOORS * sizeof(struct TrHillFloor));
if (TryWriteSpecialSaveSection(SECTOR_ID_TRAINER_HILL, (u8 *)hillTag) != SAVE_STATUS_OK)
if (TryWriteSpecialSaveSector(SECTOR_ID_TRAINER_HILL, (u8 *)hillTag) != SAVE_STATUS_OK)
return FALSE;
return TRUE;
@ -497,7 +497,7 @@ bool32 TryWriteTrainerHill(struct EReaderTrainerHillSet * hillSet)
static bool32 TryReadTrainerHill_Internal(struct EReaderTrainerHillSet * dest, u8 * buffer)
{
if (TryReadSpecialSaveSection(SECTOR_ID_TRAINER_HILL, buffer) != SAVE_STATUS_OK)
if (TryReadSpecialSaveSector(SECTOR_ID_TRAINER_HILL, buffer) != SAVE_STATUS_OK)
return FALSE;
memcpy(dest, buffer, sizeof(struct EReaderTrainerHillSet));

12
src/hall_of_fame.c
View File

@ -487,12 +487,12 @@ static void Task_Hof_InitTeamSaveData(u8 taskId)
if (!gHasHallOfFameRecords)
{
memset(gDecompressionBuffer, 0, 0x2000);
memset(gDecompressionBuffer, 0, SECTOR_SIZE * NUM_HOF_SECTORS);
}
else
{
if (Save_LoadGameData(SAVE_HALL_OF_FAME) != SAVE_STATUS_OK)
memset(gDecompressionBuffer, 0, 0x2000);
if (LoadGameSave(SAVE_HALL_OF_FAME) != SAVE_STATUS_OK)
memset(gDecompressionBuffer, 0, SECTOR_SIZE * NUM_HOF_SECTORS);
}
for (i = 0; i < HALL_OF_FAME_MAX_TEAMS; i++, lastSavedTeam++)
@ -853,7 +853,7 @@ void CB2_DoHallOfFamePC(void)
gTasks[taskId].tMonSpriteId(i) = SPRITE_NONE;
}
sHofMonPtr = AllocZeroed(0x2000);
sHofMonPtr = AllocZeroed(SECTOR_SIZE * NUM_HOF_SECTORS);
SetMainCallback2(CB2_HallOfFame);
}
break;
@ -863,7 +863,7 @@ void CB2_DoHallOfFamePC(void)
static void Task_HofPC_CopySaveData(u8 taskId)
{
sub_81980F0(0, 0x1E, 0, 0xC, 0x226);
if (Save_LoadGameData(SAVE_HALL_OF_FAME) != SAVE_STATUS_OK)
if (LoadGameSave(SAVE_HALL_OF_FAME) != SAVE_STATUS_OK)
{
gTasks[taskId].func = Task_HofPC_PrintDataIsCorrupted;
}
@ -872,7 +872,7 @@ static void Task_HofPC_CopySaveData(u8 taskId)
u16 i;
struct HallofFameTeam* savedTeams;
CpuCopy16(gDecompressionBuffer, sHofMonPtr, 0x2000);
CpuCopy16(gDecompressionBuffer, sHofMonPtr, SECTOR_SIZE * NUM_HOF_SECTORS);
savedTeams = sHofMonPtr;
for (i = 0; i < HALL_OF_FAME_MAX_TEAMS; i++, savedTeams++)
{

2
src/intro.c
View File

@ -1145,7 +1145,7 @@ void CB2_InitCopyrightScreenAfterBootup(void)
SetSaveBlocksPointers(GetSaveBlocksPointersBaseOffset());
ResetMenuAndMonGlobals();
Save_ResetSaveCounters();
Save_LoadGameData(SAVE_NORMAL);
LoadGameSave(SAVE_NORMAL);
if (gSaveFileStatus == SAVE_STATUS_EMPTY || gSaveFileStatus == SAVE_STATUS_CORRUPT)
Sav2_ClearSetDefault();
SetPokemonCryStereo(gSaveBlock2Ptr->optionsSound);

4
src/load_save.c
View File

@ -198,13 +198,13 @@ void LoadObjectEvents(void)
gObjectEvents[i] = gSaveBlock1Ptr->objectEvents[i];
}
void SaveSerializedGame(void)
void CopyPartyAndObjectsToSave(void)
{
SavePlayerParty();
SaveObjectEvents();
}
void LoadSerializedGame(void)
void CopyPartyAndObjectsFromSave(void)
{
LoadPlayerParty();
LoadObjectEvents();

4
src/pokemon_jump.c
View File

@ -1282,12 +1282,12 @@ static bool32 SavePokeJump(void)
case 2:
if (AreLinkQueuesEmpty())
{
CreateTask(Task_LinkSave, 6);
CreateTask(Task_LinkFullSave, 6);
sPokemonJump->mainState++;
}
break;
case 3:
if (!FuncIsActiveTask(Task_LinkSave))
if (!FuncIsActiveTask(Task_LinkFullSave))
{
ClearMessageWindow();
sPokemonJump->mainState++;

10
src/record_mixing.c
View File

@ -1002,11 +1002,11 @@ static void Task_DoRecordMixing(u8 taskId)
case 2:
// Mixing Ruby/Sapphire records.
SetContinueGameWarpStatusToDynamicWarp();
FullSaveGame();
WriteSaveBlock2();
task->tState++;
break;
case 3:
if (CheckSaveFile())
if (WriteSaveBlock1Sector())
{
ClearContinueGameWarpStatus2();
task->tState = 4;
@ -1030,12 +1030,12 @@ static void Task_DoRecordMixing(u8 taskId)
case 6:
if (!Rfu_SetLinkRecovery(FALSE))
{
CreateTask(Task_LinkSave, 5);
CreateTask(Task_LinkFullSave, 5);
task->tState++;
}
break;
case 7: // wait for Task_LinkSave to finish.
if (!FuncIsActiveTask(Task_LinkSave))
case 7: // wait for Task_LinkFullSave to finish.
if (!FuncIsActiveTask(Task_LinkFullSave))
{
if (gWirelessCommType)
{

16
src/recorded_battle.c
View File

@ -306,14 +306,14 @@ static bool32 IsRecordedBattleSaveValid(struct RecordedBattleSave *save)
return TRUE;
}
static bool32 RecordedBattleToSave(struct RecordedBattleSave *battleSave, struct RecordedBattleSave *saveSection)
static bool32 RecordedBattleToSave(struct RecordedBattleSave *battleSave, struct RecordedBattleSave *saveSector)
{
memset(saveSection, 0, SECTOR_SIZE);
memcpy(saveSection, battleSave, sizeof(*battleSave));
memset(saveSector, 0, SECTOR_SIZE);
memcpy(saveSector, battleSave, sizeof(*battleSave));
saveSection->checksum = CalcByteArraySum((void*)(saveSection), sizeof(*saveSection) - 4);
saveSector->checksum = CalcByteArraySum((void*)(saveSector), sizeof(*saveSector) - 4);
if (TryWriteSpecialSaveSection(SECTOR_ID_RECORDED_BATTLE, (void*)(saveSection)) != SAVE_STATUS_OK)
if (TryWriteSpecialSaveSector(SECTOR_ID_RECORDED_BATTLE, (void*)(saveSector)) != SAVE_STATUS_OK)
return FALSE;
else
return TRUE;
@ -477,9 +477,9 @@ bool32 MoveRecordedBattleToSaveData(void)
return ret;
}
static bool32 TryCopyRecordedBattleSaveData(struct RecordedBattleSave *dst, struct SaveSection *saveBuffer)
static bool32 TryCopyRecordedBattleSaveData(struct RecordedBattleSave *dst, struct SaveSector *saveBuffer)
{
if (TryReadSpecialSaveSection(SECTOR_ID_RECORDED_BATTLE, (void*)(saveBuffer)) != SAVE_STATUS_OK)
if (TryReadSpecialSaveSector(SECTOR_ID_RECORDED_BATTLE, (void*)(saveBuffer)) != SAVE_STATUS_OK)
return FALSE;
memcpy(dst, saveBuffer, sizeof(struct RecordedBattleSave));
@ -492,7 +492,7 @@ static bool32 TryCopyRecordedBattleSaveData(struct RecordedBattleSave *dst, stru
static bool32 CopyRecordedBattleFromSave(struct RecordedBattleSave *dst)
{
struct SaveSection *savBuffer = AllocZeroed(sizeof(struct SaveSection));
struct SaveSector *savBuffer = AllocZeroed(SECTOR_SIZE);
bool32 ret = TryCopyRecordedBattleSaveData(dst, savBuffer);
Free(savBuffer);

2
src/reload_save.c
View File

@ -21,7 +21,7 @@ void ReloadSave(void)
SetSaveBlocksPointers(GetSaveBlocksPointersBaseOffset());
ResetMenuAndMonGlobals();
Save_ResetSaveCounters();
Save_LoadGameData(SAVE_NORMAL);
LoadGameSave(SAVE_NORMAL);
if (gSaveFileStatus == SAVE_STATUS_EMPTY || gSaveFileStatus == SAVE_STATUS_CORRUPT)
Sav2_ClearSetDefault();
SetPokemonCryStereo(gSaveBlock2Ptr->optionsSound);

546
src/save.c
View File

File diff suppressed because it is too large Load Diff

6
src/save_failed_screen.c
View File

@ -363,9 +363,10 @@ static bool8 VerifySectorWipe(u16 sector)
ReadFlash(sector, 0, (u8 *)ptr, SECTOR_SIZE);
for (i = 0; i < 0x400; i++, ptr++)
// 1/4 because ptr is u32
for (i = 0; i < SECTOR_SIZE / 4; i++, ptr++)
if (*ptr)
return TRUE;
return TRUE; // Sector has nonzero data, failed
return FALSE;
}
@ -375,6 +376,7 @@ static bool8 WipeSector(u16 sector)
u16 i, j;
bool8 failed = TRUE;
// Attempt to wipe sector with an arbitrary attempt limit of 130
for (i = 0; failed && i < 130; i++)
{
for (j = 0; j < SECTOR_SIZE; j++)

18
src/start_menu.c
View File

@ -1269,11 +1269,11 @@ static void Task_SaveAfterLinkBattle(u8 taskId)
break;
case 1:
SetContinueGameWarpStatusToDynamicWarp();
FullSaveGame();
WriteSaveBlock2();
*state = 2;
break;
case 2:
if (CheckSaveFile())
if (WriteSaveBlock1Sector())
{
ClearContinueGameWarpStatus2();
*state = 3;
@ -1290,11 +1290,11 @@ static void Task_SaveAfterLinkBattle(u8 taskId)
DestroyTask(taskId);
break;
case 5:
CreateTask(Task_LinkSave, 5);
CreateTask(Task_LinkFullSave, 5);
*state = 6;
break;
case 6:
if (!FuncIsActiveTask(Task_LinkSave))
if (!FuncIsActiveTask(Task_LinkFullSave))
{
*state = 3;
}
@ -1374,23 +1374,23 @@ static void RemoveSaveInfoWindow(void)
static void Task_WaitForBattleTowerLinkSave(u8 taskId)
{
if (!FuncIsActiveTask(Task_LinkSave))
if (!FuncIsActiveTask(Task_LinkFullSave))
{
DestroyTask(taskId);
EnableBothScriptContexts();
}
}
#define tPartialSave data[2]
#define tInBattleTower data[2]
void SaveForBattleTowerLink(void)
{
u8 taskId = CreateTask(Task_LinkSave, 5);
gTasks[taskId].tPartialSave = TRUE;
u8 taskId = CreateTask(Task_LinkFullSave, 5);
gTasks[taskId].tInBattleTower = TRUE;
gTasks[CreateTask(Task_WaitForBattleTowerLinkSave, 6)].data[1] = taskId;
}
#undef tPartialSave
#undef tInBattleTower
static void HideStartMenuWindow(void)
{

19
src/trade.c
View File

@ -4654,30 +4654,29 @@ static void CB2_SaveAndEndTrade(void)
MysteryGift_TryIncrementStat(CARD_STAT_NUM_TRADES, gLinkPlayers[GetMultiplayerId() ^ 1].trainerId);
SetContinueGameWarpStatusToDynamicWarp();
sub_8153380();
LinkFullSave_Init();
gMain.state++;
sTradeData->timer = 0;
break;
case 51:
if (++sTradeData->timer == 5)
{
gMain.state++;
}
break;
case 52:
if (sub_81533AC())
if (LinkFullSave_WriteSector())
{
ClearContinueGameWarpStatus2();
gMain.state = 4;
}
else
{
// Save isn't finished, delay again
sTradeData->timer = 0;
gMain.state = 51;
}
break;
case 4:
sub_81533E0();
LinkFullSave_ReplaceLastSector();
gMain.state = 40;
sTradeData->timer = 0;
break;
@ -4709,7 +4708,7 @@ static void CB2_SaveAndEndTrade(void)
case 42:
if (_IsLinkTaskFinished())
{
sub_8153408();
LinkFullSave_SetLastSectorSecurity();
gMain.state = 5;
}
break;
@ -4965,7 +4964,7 @@ static void CB2_SaveAndEndWirelessTrade(void)
StringExpandPlaceholders(gStringVar4, gText_SavingDontTurnOffPower);
DrawTextOnTradeWindow(0, gStringVar4, 0);
IncrementGameStat(GAME_STAT_POKEMON_TRADES);
sub_8153380();
LinkFullSave_Init();
sTradeData->timer = 0;
}
break;
@ -4974,7 +4973,7 @@ static void CB2_SaveAndEndWirelessTrade(void)
gMain.state = 4;
break;
case 4:
if (sub_81533AC())
if (LinkFullSave_WriteSector())
{
gMain.state = 5;
}
@ -4985,7 +4984,7 @@ static void CB2_SaveAndEndWirelessTrade(void)
}
break;
case 5:
sub_81533E0();
LinkFullSave_ReplaceLastSector();
gMain.state = 6;
sTradeData->timer = 0;
break;
@ -5013,7 +5012,7 @@ static void CB2_SaveAndEndWirelessTrade(void)
case 8:
if (_IsLinkTaskFinished())
{
sub_8153408();
LinkFullSave_SetLastSectorSecurity();
gMain.state = 9;
}
break;