mirror of
https://github.com/pret/pokefirered.git
synced 2026-05-06 22:28:44 -05:00
925 lines
24 KiB
C
925 lines
24 KiB
C
#include "global.h"
|
|
#include "save.h"
|
|
#include "decompress.h"
|
|
#include "main.h"
|
|
#include "overworld.h"
|
|
#include "load_save.h"
|
|
#include "task.h"
|
|
#include "link.h"
|
|
#include "gba/flash_internal.h"
|
|
|
|
#define FILE_SIGNATURE 0x08012025 // signature value to determine if a sector is in use
|
|
|
|
#define TOTAL_FLASH_SECTORS 32
|
|
|
|
// Divide save blocks into individual chunks to be written to flash sectors
|
|
|
|
// Each 4 KiB flash sector contains 3968 bytes of actual data followed by a 128 byte footer
|
|
#define SECTOR_DATA_SIZE 3968
|
|
#define SECTOR_FOOTER_SIZE 128
|
|
|
|
/*
|
|
* Sector Layout:
|
|
*
|
|
* Sectors 0 - 13: Save Slot 1
|
|
* Sectors 14 - 27: Save Slot 2
|
|
* Sectors 28 - 29: Hall of Fame
|
|
* Sector 30: e-Reader/Mystery Gift Stuff (note: e-Reader is deprecated in Emerald US)
|
|
* Sector 31: Recorded Battle
|
|
*
|
|
* There are two save slots for saving the player's game data. We alternate between
|
|
* them each time the game is saved, so that if the current save slot is corrupt,
|
|
* we can load the previous one. We also rotate the sectors in each save slot
|
|
* so that the same data is not always being written to the same sector. This
|
|
* might be done to reduce wear on the flash memory, but I'm not sure, since all
|
|
* 14 sectors get written anyway.
|
|
*/
|
|
|
|
// (u8 *)structure was removed from the first statement of the macro in Emerald
|
|
// and Fire Red/Leaf Green. This is because malloc is used to allocate addresses
|
|
// so storing the raw addresses should not be done in the offsets information.
|
|
#define SAVEBLOCK_CHUNK(structure, chunkNum) \
|
|
{ \
|
|
chunkNum * SECTOR_DATA_SIZE, \
|
|
min(sizeof(structure) - chunkNum * SECTOR_DATA_SIZE, SECTOR_DATA_SIZE) \
|
|
} \
|
|
|
|
// TODO: use gSaveblock2, gSaveblock1, gPokemonStorage instead of structs
|
|
// Will be done when load_save is decompiled.
|
|
const struct SaveSectionOffsets gSaveSectionOffsets[] =
|
|
{
|
|
SAVEBLOCK_CHUNK(struct SaveBlock2, 0),
|
|
|
|
SAVEBLOCK_CHUNK(struct SaveBlock1, 0),
|
|
SAVEBLOCK_CHUNK(struct SaveBlock1, 1),
|
|
SAVEBLOCK_CHUNK(struct SaveBlock1, 2),
|
|
SAVEBLOCK_CHUNK(struct SaveBlock1, 3),
|
|
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 0),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 1),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 2),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 3),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 4),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 5),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 6),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 7),
|
|
SAVEBLOCK_CHUNK(struct PokemonStorage, 8)
|
|
};
|
|
|
|
extern void DoSaveFailedScreen(u8 saveType); // save_failed_screen
|
|
extern void sub_800AB9C(void); // link
|
|
extern bool8 IsLinkTaskFinished(void); // link
|
|
extern void save_serialize_map(void); // fieldmap
|
|
extern void sub_804C1C0(void); // load_save
|
|
extern void sav2_gender2_inplace_and_xFE(void); // load_save
|
|
|
|
// Sector num to begin writing save data. Sectors are rotated each time the game is saved. (possibly to avoid wear on flash memory?)
|
|
u16 gFirstSaveSector;
|
|
u32 gPrevSaveCounter;
|
|
u16 gLastKnownGoodSector;
|
|
u32 gDamagedSaveSectors;
|
|
u32 gSaveCounter;
|
|
struct SaveSection *gFastSaveSection; // the pointer is in fast IWRAM but may sometimes point to the slower EWRAM.
|
|
u16 gUnknown_3005398;
|
|
u16 gSaveUnusedVar;
|
|
u16 gSaveFileStatus;
|
|
void (*gGameContinueCallback)(void);
|
|
struct SaveBlockChunk gRamSaveSectionLocations[0xE];
|
|
u16 gUnknown_3005420;
|
|
|
|
EWRAM_DATA struct SaveSection gSaveDataBuffer = {0};
|
|
EWRAM_DATA u32 gSaveUnusedVar2 = 0;
|
|
|
|
void ClearSaveData(void)
|
|
{
|
|
u16 i;
|
|
|
|
for (i = 0; i < NUM_SECTORS; i++)
|
|
EraseFlashSector(i);
|
|
}
|
|
|
|
void Save_ResetSaveCounters(void)
|
|
{
|
|
gSaveCounter = 0;
|
|
gFirstSaveSector = 0;
|
|
gDamagedSaveSectors = 0;
|
|
}
|
|
|
|
bool32 SetSectorDamagedStatus(u8 op, u8 sectorNum)
|
|
{
|
|
bool32 retVal = FALSE;
|
|
|
|
switch (op)
|
|
{
|
|
case ENABLE:
|
|
gDamagedSaveSectors |= (1 << sectorNum);
|
|
break;
|
|
case DISABLE:
|
|
gDamagedSaveSectors &= ~(1 << sectorNum);
|
|
break;
|
|
case CHECK: // unused
|
|
if (gDamagedSaveSectors & (1 << sectorNum))
|
|
retVal = TRUE;
|
|
break;
|
|
}
|
|
|
|
return retVal;
|
|
}
|
|
|
|
// If chunkId is 0xFFFF, this function will write all of the chunks pointed to by 'chunks'.
|
|
// Otherwise, it will write a single chunk with the given 'chunkId'.
|
|
u8 save_write_to_flash(u16 chunkId, const struct SaveBlockChunk *chunks)
|
|
{
|
|
u32 retVal;
|
|
u16 i;
|
|
|
|
gFastSaveSection = &gSaveDataBuffer;
|
|
|
|
if (chunkId != 0xFFFF) // write single chunk
|
|
{
|
|
retVal = HandleWriteSector(chunkId, chunks);
|
|
}
|
|
else // write all chunks
|
|
{
|
|
gLastKnownGoodSector = gFirstSaveSector; // backup the current written sector before attempting to write.
|
|
gPrevSaveCounter = gSaveCounter;
|
|
gFirstSaveSector++;
|
|
gFirstSaveSector %= NUM_SECTORS_PER_SAVE_SLOT; // array count save sector locations
|
|
gSaveCounter++;
|
|
retVal = SAVE_STATUS_OK;
|
|
|
|
for (i = 0; i < NUM_SECTORS_PER_SAVE_SLOT; i++)
|
|
HandleWriteSector(i, chunks);
|
|
|
|
// Check for any bad sectors
|
|
if (gDamagedSaveSectors != 0) // skip the damaged sector.
|
|
{
|
|
retVal = SAVE_STATUS_ERROR;
|
|
gFirstSaveSector = gLastKnownGoodSector;
|
|
gSaveCounter = gPrevSaveCounter;
|
|
}
|
|
}
|
|
|
|
return retVal;
|
|
}
|
|
|
|
u8 HandleWriteSector(u16 chunkId, const struct SaveBlockChunk *chunks)
|
|
{
|
|
u16 i;
|
|
u16 sectorNum;
|
|
u8 *chunkData;
|
|
u16 chunkSize;
|
|
|
|
// select sector number
|
|
sectorNum = chunkId + gFirstSaveSector;
|
|
sectorNum %= NUM_SECTORS_PER_SAVE_SLOT;
|
|
// select save slot
|
|
sectorNum += NUM_SECTORS_PER_SAVE_SLOT * (gSaveCounter % 2);
|
|
|
|
chunkData = chunks[chunkId].data;
|
|
chunkSize = chunks[chunkId].size;
|
|
|
|
// clear save section.
|
|
for (i = 0; i < sizeof(struct SaveSection); i++)
|
|
((char *)gFastSaveSection)[i] = 0;
|
|
|
|
gFastSaveSection->id = chunkId;
|
|
gFastSaveSection->signature = FILE_SIGNATURE;
|
|
gFastSaveSection->counter = gSaveCounter;
|
|
|
|
for (i = 0; i < chunkSize; i++)
|
|
gFastSaveSection->data[i] = chunkData[i];
|
|
|
|
gFastSaveSection->checksum = CalculateChecksum(chunkData, chunkSize);
|
|
return TryWriteSector(sectorNum, gFastSaveSection->data);
|
|
}
|
|
|
|
u8 HandleWriteSectorNBytes(u8 sector, u8 *data, u16 size)
|
|
{
|
|
u16 i;
|
|
struct SaveSection *section = &gSaveDataBuffer;
|
|
|
|
for (i = 0; i < sizeof(struct SaveSection); i++)
|
|
((char *)section)[i] = 0;
|
|
|
|
section->signature = FILE_SIGNATURE;
|
|
|
|
for (i = 0; i < size; i++)
|
|
section->data[i] = data[i];
|
|
|
|
section->id = CalculateChecksum(data, size); // though this appears to be incorrect, it might be some sector checksum instead of a whole save checksum and only appears to be relevent to HOF data, if used.
|
|
return TryWriteSector(sector, section->data);
|
|
}
|
|
|
|
u8 TryWriteSector(u8 sectorNum, u8 *data)
|
|
{
|
|
if (ProgramFlashSectorAndVerify(sectorNum, data) != 0) // is damaged?
|
|
{
|
|
SetSectorDamagedStatus(ENABLE, sectorNum); // set damaged sector bits.
|
|
return SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
SetSectorDamagedStatus(DISABLE, sectorNum); // unset damaged sector bits. it's safe now.
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
}
|
|
|
|
u32 RestoreSaveBackupVarsAndIncrement(const struct SaveBlockChunk *chunk) // chunk is unused
|
|
{
|
|
gFastSaveSection = &gSaveDataBuffer;
|
|
gLastKnownGoodSector = gFirstSaveSector;
|
|
gPrevSaveCounter = gSaveCounter;
|
|
gFirstSaveSector++;
|
|
gFirstSaveSector %= NUM_SECTORS_PER_SAVE_SLOT;
|
|
gSaveCounter++;
|
|
gUnknown_3005398 = 0;
|
|
gDamagedSaveSectors = 0;
|
|
return 0;
|
|
}
|
|
|
|
u32 RestoreSaveBackupVars(const struct SaveBlockChunk *chunk) // chunk is unused
|
|
{
|
|
gFastSaveSection = &gSaveDataBuffer;
|
|
gLastKnownGoodSector = gFirstSaveSector;
|
|
gPrevSaveCounter = gSaveCounter;
|
|
gUnknown_3005398 = 0;
|
|
gDamagedSaveSectors = 0;
|
|
return 0;
|
|
}
|
|
|
|
u8 sub_80D9AA4(u16 a1, const struct SaveBlockChunk *chunk)
|
|
{
|
|
u8 retVal;
|
|
|
|
if (gUnknown_3005398 < a1 - 1)
|
|
{
|
|
retVal = SAVE_STATUS_OK;
|
|
HandleWriteSector(gUnknown_3005398, chunk);
|
|
gUnknown_3005398++;
|
|
if (gDamagedSaveSectors)
|
|
{
|
|
retVal = SAVE_STATUS_ERROR;
|
|
gFirstSaveSector = gLastKnownGoodSector;
|
|
gSaveCounter = gPrevSaveCounter;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
retVal = SAVE_STATUS_ERROR;
|
|
}
|
|
|
|
return retVal;
|
|
}
|
|
|
|
u8 sub_80D9B04(u16 a1, const struct SaveBlockChunk *chunk)
|
|
{
|
|
u8 retVal = SAVE_STATUS_OK;
|
|
|
|
ClearSaveData_2(a1 - 1, chunk);
|
|
|
|
if (gDamagedSaveSectors)
|
|
{
|
|
retVal = SAVE_STATUS_ERROR;
|
|
gFirstSaveSector = gLastKnownGoodSector;
|
|
gSaveCounter = gPrevSaveCounter;
|
|
}
|
|
return retVal;
|
|
}
|
|
|
|
u8 ClearSaveData_2(u16 chunkId, const struct SaveBlockChunk *chunks)
|
|
{
|
|
u16 i;
|
|
u16 sector;
|
|
u8 *data;
|
|
u16 size;
|
|
u8 status;
|
|
|
|
// select sector number
|
|
sector = chunkId + gFirstSaveSector;
|
|
sector %= NUM_SECTORS_PER_SAVE_SLOT;
|
|
// select save slot
|
|
sector += NUM_SECTORS_PER_SAVE_SLOT * (gSaveCounter % 2);
|
|
|
|
data = chunks[chunkId].data;
|
|
size = chunks[chunkId].size;
|
|
|
|
// clear temp save section.
|
|
for (i = 0; i < sizeof(struct SaveSection); i++)
|
|
((char *)gFastSaveSection)[i] = 0;
|
|
|
|
gFastSaveSection->id = chunkId;
|
|
gFastSaveSection->signature = FILE_SIGNATURE;
|
|
gFastSaveSection->counter = gSaveCounter;
|
|
|
|
// set temp section's data.
|
|
for (i = 0; i < size; i++)
|
|
gFastSaveSection->data[i] = data[i];
|
|
|
|
// calculate checksum.
|
|
gFastSaveSection->checksum = CalculateChecksum(data, size);
|
|
|
|
EraseFlashSector(sector);
|
|
|
|
status = SAVE_STATUS_OK;
|
|
|
|
for (i = 0; i < sizeof(struct UnkSaveSection); i++)
|
|
{
|
|
if (ProgramFlashByte(sector, i, gFastSaveSection->data[i]))
|
|
{
|
|
status = SAVE_STATUS_ERROR;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (status == SAVE_STATUS_ERROR)
|
|
{
|
|
SetSectorDamagedStatus(ENABLE, sector);
|
|
return SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
status = SAVE_STATUS_OK;
|
|
|
|
for (i = 0; i < 7; i++)
|
|
{
|
|
if (ProgramFlashByte(sector, 0xFF9 + i, ((u8 *)gFastSaveSection)[0xFF9 + i]))
|
|
{
|
|
status = SAVE_STATUS_ERROR;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (status == SAVE_STATUS_ERROR)
|
|
{
|
|
SetSectorDamagedStatus(ENABLE, sector);
|
|
return SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
SetSectorDamagedStatus(DISABLE, sector);
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
u8 sav12_xor_get(u16 a1, const struct SaveBlockChunk *chunk)
|
|
{
|
|
u16 sector;
|
|
|
|
// select sector number
|
|
sector = a1 + gFirstSaveSector - 1;
|
|
sector %= NUM_SECTORS_PER_SAVE_SLOT;
|
|
// select save slot
|
|
sector += NUM_SECTORS_PER_SAVE_SLOT * (gSaveCounter % 2);
|
|
|
|
if (ProgramFlashByte(sector, sizeof(struct UnkSaveSection), ((u8 *)gFastSaveSection)[sizeof(struct UnkSaveSection)]))
|
|
{
|
|
// sector is damaged, so enable the bit in gDamagedSaveSectors and restore the last written sector and save counter.
|
|
SetSectorDamagedStatus(ENABLE, sector);
|
|
gFirstSaveSector = gLastKnownGoodSector;
|
|
gSaveCounter = gPrevSaveCounter;
|
|
return SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
SetSectorDamagedStatus(DISABLE, sector);
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
}
|
|
|
|
u8 sub_80D9D88(u16 a1, const struct SaveBlockChunk *chunk)
|
|
{
|
|
u16 sector;
|
|
|
|
sector = a1 + gFirstSaveSector - 1;
|
|
sector %= NUM_SECTORS_PER_SAVE_SLOT;
|
|
sector += NUM_SECTORS_PER_SAVE_SLOT * (gSaveCounter % 2);
|
|
|
|
if (ProgramFlashByte(sector, sizeof(struct UnkSaveSection), 0x25))
|
|
{
|
|
// sector is damaged, so enable the bit in gDamagedSaveSectors and restore the last written sector and save counter.
|
|
SetSectorDamagedStatus(ENABLE, sector);
|
|
gFirstSaveSector = gLastKnownGoodSector;
|
|
gSaveCounter = gPrevSaveCounter;
|
|
return SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
SetSectorDamagedStatus(DISABLE, sector);
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
}
|
|
|
|
u8 sub_80D9E14(u16 a1, const struct SaveBlockChunk *chunk)
|
|
{
|
|
u8 retVal;
|
|
gFastSaveSection = &gSaveDataBuffer;
|
|
if (a1 != 0xFFFF)
|
|
{
|
|
retVal = SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
retVal = GetSaveValidStatus(chunk);
|
|
sub_80D9E54(0xFFFF, chunk);
|
|
}
|
|
|
|
return retVal;
|
|
}
|
|
|
|
u8 sub_80D9E54(u16 a1, const struct SaveBlockChunk *chunks)
|
|
{
|
|
u16 i;
|
|
u16 checksum;
|
|
u16 sector = NUM_SECTORS_PER_SAVE_SLOT * (gSaveCounter % 2);
|
|
u16 id;
|
|
|
|
for (i = 0; i < NUM_SECTORS_PER_SAVE_SLOT; i++)
|
|
{
|
|
DoReadFlashWholeSection(i + sector, gFastSaveSection);
|
|
id = gFastSaveSection->id;
|
|
if (id == 0)
|
|
gFirstSaveSector = i;
|
|
checksum = CalculateChecksum(gFastSaveSection->data, chunks[id].size);
|
|
if (gFastSaveSection->signature == FILE_SIGNATURE
|
|
&& gFastSaveSection->checksum == checksum)
|
|
{
|
|
u16 j;
|
|
for (j = 0; j < chunks[id].size; j++)
|
|
chunks[id].data[j] = gFastSaveSection->data[j];
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
u8 GetSaveValidStatus(const struct SaveBlockChunk *chunks)
|
|
{
|
|
u16 sector;
|
|
bool8 signatureValid;
|
|
u16 checksum;
|
|
u32 slot1saveCounter = 0;
|
|
u32 slot2saveCounter = 0;
|
|
u8 slot1Status;
|
|
u8 slot2Status;
|
|
u32 validSectors;
|
|
const u32 ALL_SECTORS = (1 << NUM_SECTORS_PER_SAVE_SLOT) - 1; // bitmask of all saveblock sectors
|
|
|
|
// check save slot 1.
|
|
validSectors = 0;
|
|
signatureValid = FALSE;
|
|
for (sector = 0; sector < NUM_SECTORS_PER_SAVE_SLOT; sector++)
|
|
{
|
|
DoReadFlashWholeSection(sector, gFastSaveSection);
|
|
if (gFastSaveSection->signature == FILE_SIGNATURE)
|
|
{
|
|
signatureValid = TRUE;
|
|
checksum = CalculateChecksum(gFastSaveSection->data, chunks[gFastSaveSection->id].size);
|
|
if (gFastSaveSection->checksum == checksum)
|
|
{
|
|
slot1saveCounter = gFastSaveSection->counter;
|
|
validSectors |= 1 << gFastSaveSection->id;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (signatureValid)
|
|
{
|
|
if (validSectors == ALL_SECTORS)
|
|
slot1Status = SAVE_STATUS_OK;
|
|
else
|
|
slot1Status = SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
slot1Status = SAVE_STATUS_EMPTY;
|
|
}
|
|
|
|
// check save slot 2.
|
|
validSectors = 0;
|
|
signatureValid = FALSE;
|
|
for (sector = 0; sector < NUM_SECTORS_PER_SAVE_SLOT; sector++)
|
|
{
|
|
DoReadFlashWholeSection(NUM_SECTORS_PER_SAVE_SLOT + sector, gFastSaveSection);
|
|
if (gFastSaveSection->signature == FILE_SIGNATURE)
|
|
{
|
|
signatureValid = TRUE;
|
|
checksum = CalculateChecksum(gFastSaveSection->data, chunks[gFastSaveSection->id].size);
|
|
if (gFastSaveSection->checksum == checksum)
|
|
{
|
|
slot2saveCounter = gFastSaveSection->counter;
|
|
validSectors |= 1 << gFastSaveSection->id;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (signatureValid)
|
|
{
|
|
if (validSectors == ALL_SECTORS)
|
|
slot2Status = SAVE_STATUS_OK;
|
|
else
|
|
slot2Status = SAVE_STATUS_ERROR;
|
|
}
|
|
else
|
|
{
|
|
slot2Status = SAVE_STATUS_EMPTY;
|
|
}
|
|
|
|
if (slot1Status == SAVE_STATUS_OK && slot2Status == SAVE_STATUS_OK)
|
|
{
|
|
// Choose counter of the most recent save file
|
|
if ((slot1saveCounter == -1 && slot2saveCounter == 0) || (slot1saveCounter == 0 && slot2saveCounter == -1))
|
|
{
|
|
if ((unsigned)(slot1saveCounter + 1) < (unsigned)(slot2saveCounter + 1))
|
|
gSaveCounter = slot2saveCounter;
|
|
else
|
|
gSaveCounter = slot1saveCounter;
|
|
}
|
|
else
|
|
{
|
|
if (slot1saveCounter < slot2saveCounter)
|
|
gSaveCounter = slot2saveCounter;
|
|
else
|
|
gSaveCounter = slot1saveCounter;
|
|
}
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
|
|
if (slot1Status == SAVE_STATUS_OK)
|
|
{
|
|
gSaveCounter = slot1saveCounter;
|
|
if (slot2Status == SAVE_STATUS_ERROR)
|
|
return SAVE_STATUS_ERROR;
|
|
else
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
|
|
if (slot2Status == SAVE_STATUS_OK)
|
|
{
|
|
gSaveCounter = slot2saveCounter;
|
|
if (slot1Status == SAVE_STATUS_ERROR)
|
|
return SAVE_STATUS_ERROR;
|
|
else
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
|
|
if (slot1Status == SAVE_STATUS_EMPTY && slot2Status == SAVE_STATUS_EMPTY)
|
|
{
|
|
gSaveCounter = 0;
|
|
gFirstSaveSector = 0;
|
|
return SAVE_STATUS_EMPTY;
|
|
}
|
|
|
|
gSaveCounter = 0;
|
|
gFirstSaveSector = 0;
|
|
return 2;
|
|
}
|
|
|
|
u8 sub_80DA120(u8 sector, u8 *data, u16 size)
|
|
{
|
|
u16 i;
|
|
struct SaveSection *section = &gSaveDataBuffer;
|
|
|
|
DoReadFlashWholeSection(sector, section);
|
|
if (section->signature == FILE_SIGNATURE)
|
|
{
|
|
u16 checksum = CalculateChecksum(section->data, size);
|
|
if (section->id == checksum)
|
|
{
|
|
for (i = 0; i < size; i++)
|
|
data[i] = section->data[i];
|
|
return SAVE_STATUS_OK;
|
|
}
|
|
else
|
|
{
|
|
return SAVE_STATUS_INVALID;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return SAVE_STATUS_EMPTY;
|
|
}
|
|
}
|
|
|
|
u8 DoReadFlashWholeSection(u8 sector, struct SaveSection *section)
|
|
{
|
|
ReadFlash(sector, 0, section->data, sizeof(struct SaveSection));
|
|
return 1;
|
|
}
|
|
|
|
u16 CalculateChecksum(void *data, u16 size)
|
|
{
|
|
u16 i;
|
|
u32 checksum = 0;
|
|
|
|
for (i = 0; i < (size / 4); i++)
|
|
{
|
|
// checksum += *(u32 *)data++;
|
|
// For compatibility with modern gcc, these statements were separated.
|
|
checksum += *(u32 *)data;
|
|
data += 4;
|
|
}
|
|
|
|
return ((checksum >> 16) + checksum);
|
|
}
|
|
|
|
void UpdateSaveAddresses(void)
|
|
{
|
|
int i = 0;
|
|
|
|
gRamSaveSectionLocations[i].data = (void*)(gSaveBlock2Ptr) + gSaveSectionOffsets[i].toAdd;
|
|
gRamSaveSectionLocations[i].size = gSaveSectionOffsets[i].size;
|
|
|
|
for (i = 1; i < 5; i++)
|
|
{
|
|
gRamSaveSectionLocations[i].data = (void*)(gSaveBlock1Ptr) + gSaveSectionOffsets[i].toAdd;
|
|
gRamSaveSectionLocations[i].size = gSaveSectionOffsets[i].size;
|
|
}
|
|
|
|
for (i = 5; i < 14; i++)
|
|
{
|
|
gRamSaveSectionLocations[i].data = (void*)(gPokemonStoragePtr) + gSaveSectionOffsets[i].toAdd;
|
|
gRamSaveSectionLocations[i].size = gSaveSectionOffsets[i].size;
|
|
|
|
i++;i--; // needed to match
|
|
}
|
|
}
|
|
|
|
u8 HandleSavingData(u8 saveType)
|
|
{
|
|
u8 i;
|
|
u32 *backupPtr = gMain.vblankCounter1;
|
|
u8 *tempAddr;
|
|
|
|
gMain.vblankCounter1 = NULL;
|
|
UpdateSaveAddresses();
|
|
switch (saveType)
|
|
{
|
|
case SAVE_HALL_OF_FAME_ERASE_BEFORE: // deletes HOF before overwriting HOF completely. unused
|
|
for (i = 0xE * 2 + 0; i < 32; i++)
|
|
EraseFlashSector(i);
|
|
// fallthrough
|
|
case SAVE_HALL_OF_FAME: // hall of fame.
|
|
if (GetGameStat(GAME_STAT_ENTERED_HOF) < 999)
|
|
IncrementGameStat(GAME_STAT_ENTERED_HOF);
|
|
tempAddr = gDecompressionBuffer;
|
|
HandleWriteSectorNBytes(0x1C, tempAddr, 0xF80);
|
|
HandleWriteSectorNBytes(0x1D, tempAddr + 0xF80, 0xF80);
|
|
// fallthrough
|
|
case SAVE_NORMAL: // normal save. also called by overwriting your own save.
|
|
default:
|
|
SaveSerializedGame();
|
|
save_write_to_flash(0xFFFF, gRamSaveSectionLocations);
|
|
break;
|
|
case SAVE_LINK: // _081532C4
|
|
SaveSerializedGame();
|
|
for(i = 0; i < 5; i++)
|
|
save_write_to_flash(i, gRamSaveSectionLocations);
|
|
break;
|
|
case EREADER_SAVE:
|
|
SaveSerializedGame();
|
|
save_write_to_flash(0, gRamSaveSectionLocations);
|
|
break;
|
|
case SAVE_OVERWRITE_DIFFERENT_FILE:
|
|
for (i = (0xE * 2 + 0); i < 32; i++)
|
|
EraseFlashSector(i); // erase HOF.
|
|
SaveSerializedGame();
|
|
save_write_to_flash(0xFFFF, gRamSaveSectionLocations);
|
|
break;
|
|
}
|
|
gMain.vblankCounter1 = backupPtr;
|
|
return 0;
|
|
}
|
|
|
|
u8 TrySavingData(u8 saveType)
|
|
{
|
|
if(gFlashMemoryPresent == TRUE)
|
|
{
|
|
HandleSavingData(saveType);
|
|
if(gDamagedSaveSectors)
|
|
DoSaveFailedScreen(saveType);
|
|
else
|
|
goto OK; // really?
|
|
}
|
|
gUnknown_3005420 = 0xFF;
|
|
return 0xFF;
|
|
|
|
OK:
|
|
gUnknown_3005420 = 1;
|
|
return 1;
|
|
}
|
|
|
|
u8 sub_80DA3AC(void)
|
|
{
|
|
if (gFlashMemoryPresent != TRUE)
|
|
return 1;
|
|
UpdateSaveAddresses();
|
|
SaveSerializedGame();
|
|
RestoreSaveBackupVarsAndIncrement(gRamSaveSectionLocations);
|
|
return 0;
|
|
}
|
|
|
|
bool8 sub_80DA3D8(void)
|
|
{
|
|
u8 retVal = sub_80D9AA4(0xE, gRamSaveSectionLocations);
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(0);
|
|
if (retVal == 0xFF)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
u8 sub_80DA40C(void)
|
|
{
|
|
sub_80D9B04(0xE, gRamSaveSectionLocations);
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(0);
|
|
return 0;
|
|
}
|
|
|
|
u8 sub_80DA434(void)
|
|
{
|
|
sav12_xor_get(0xE, gRamSaveSectionLocations);
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(0);
|
|
return 0;
|
|
}
|
|
|
|
u8 sub_80DA45C(void)
|
|
{
|
|
if (gFlashMemoryPresent != TRUE)
|
|
return 1;
|
|
|
|
UpdateSaveAddresses();
|
|
SaveSerializedGame();
|
|
RestoreSaveBackupVars(gRamSaveSectionLocations);
|
|
sub_80D9B04(gUnknown_3005398 + 1, gRamSaveSectionLocations);
|
|
return 0;
|
|
}
|
|
|
|
bool8 sub_80DA4A0(void)
|
|
{
|
|
u8 retVal = FALSE;
|
|
u16 val = ++gUnknown_3005398;
|
|
if (val <= 4)
|
|
{
|
|
sub_80D9B04(gUnknown_3005398 + 1, gRamSaveSectionLocations);
|
|
sub_80D9D88(val, gRamSaveSectionLocations);
|
|
}
|
|
else
|
|
{
|
|
sub_80D9D88(val, gRamSaveSectionLocations);
|
|
retVal = TRUE;
|
|
}
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(1);
|
|
return retVal;
|
|
}
|
|
|
|
u8 Save_LoadGameData(u8 a1)
|
|
{
|
|
u8 result;
|
|
|
|
if (gFlashMemoryPresent != TRUE)
|
|
{
|
|
gSaveFileStatus = 4;
|
|
return 0xFF;
|
|
}
|
|
|
|
UpdateSaveAddresses();
|
|
switch (a1)
|
|
{
|
|
case 0:
|
|
default:
|
|
result = sub_80D9E14(0xFFFF, gRamSaveSectionLocations);
|
|
LoadSerializedGame();
|
|
gSaveFileStatus = result;
|
|
gGameContinueCallback = 0;
|
|
break;
|
|
case 3:
|
|
result = sub_80DA120(0x1C, gDecompressionBuffer, 0xF80);
|
|
if(result == 1)
|
|
result = sub_80DA120(0x1D, gDecompressionBuffer + 0xF80, 0xF80);
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
u32 TryCopySpecialSaveSection(u8 sector, u8* dst)
|
|
{
|
|
s32 i;
|
|
s32 size;
|
|
u8* savData;
|
|
|
|
if (sector != 30 && sector != 31)
|
|
return 0xFF;
|
|
ReadFlash(sector, 0, (u8 *)&gSaveDataBuffer, sizeof(struct SaveSection));
|
|
if (*(u32*)(&gSaveDataBuffer.data[0]) != 0xB39D)
|
|
return 0xFF;
|
|
// copies whole save section except u32 counter
|
|
i = 0;
|
|
size = 0xFFB;
|
|
savData = &gSaveDataBuffer.data[4];
|
|
for (; i <= size; i++)
|
|
dst[i] = savData[i];
|
|
return 1;
|
|
}
|
|
|
|
u32 TryWriteSpecialSaveSection(u8 sector, u8* src)
|
|
{
|
|
s32 i;
|
|
s32 size;
|
|
u8* savData;
|
|
void* savDataBuffer;
|
|
|
|
if (sector != 30 && sector != 31)
|
|
return 0xFF;
|
|
|
|
savDataBuffer = &gSaveDataBuffer;
|
|
*(u32*)(savDataBuffer) = 0xB39D;
|
|
|
|
// copies whole save section except u32 counter
|
|
i = 0;
|
|
size = 0xFFB;
|
|
savData = &gSaveDataBuffer.data[4];
|
|
for (; i <= size; i++)
|
|
savData[i] = src[i];
|
|
if (ProgramFlashSectorAndVerify(sector, savDataBuffer) != 0)
|
|
return 0xFF;
|
|
return 1;
|
|
}
|
|
|
|
void sub_80DA634(u8 taskId)
|
|
{
|
|
switch (gTasks[taskId].data[0])
|
|
{
|
|
case 0:
|
|
gSoftResetDisabled = TRUE;
|
|
gTasks[taskId].data[0] = 1;
|
|
break;
|
|
case 1:
|
|
sub_800AB9C();
|
|
gTasks[taskId].data[0] = 2;
|
|
break;
|
|
case 2:
|
|
if (IsLinkTaskFinished())
|
|
{
|
|
save_serialize_map();
|
|
gTasks[taskId].data[0] = 3;
|
|
}
|
|
break;
|
|
case 3:
|
|
sub_804C1C0();
|
|
sub_80DA3AC();
|
|
gTasks[taskId].data[0] = 4;
|
|
break;
|
|
case 4:
|
|
if (++gTasks[taskId].data[1] == 5)
|
|
{
|
|
gTasks[taskId].data[1] = 0;
|
|
gTasks[taskId].data[0] = 5;
|
|
}
|
|
break;
|
|
case 5:
|
|
if (sub_80DA3D8())
|
|
gTasks[taskId].data[0] = 6;
|
|
else
|
|
gTasks[taskId].data[0] = 4;
|
|
break;
|
|
case 6:
|
|
sub_80DA40C();
|
|
gTasks[taskId].data[0] = 7;
|
|
break;
|
|
case 7:
|
|
sav2_gender2_inplace_and_xFE();
|
|
sub_800AB9C();
|
|
gTasks[taskId].data[0] = 8;
|
|
break;
|
|
case 8:
|
|
if (IsLinkTaskFinished())
|
|
{
|
|
sub_80DA434();
|
|
gTasks[taskId].data[0] = 9;
|
|
}
|
|
break;
|
|
case 9:
|
|
sub_800AB9C();
|
|
gTasks[taskId].data[0] = 10;
|
|
break;
|
|
case 10:
|
|
if (IsLinkTaskFinished())
|
|
gTasks[taskId].data[0]++;
|
|
break;
|
|
case 11:
|
|
if (++gTasks[taskId].data[1] > 5)
|
|
{
|
|
gSoftResetDisabled = FALSE;
|
|
DestroyTask(taskId);
|
|
}
|
|
break;
|
|
}
|
|
}
|