diff options
Diffstat (limited to 'src/engine/save.c')
| -rw-r--r-- | src/engine/save.c | 929 |
1 files changed, 0 insertions, 929 deletions
diff --git a/src/engine/save.c b/src/engine/save.c deleted file mode 100644 index 0b7a3dd79..000000000 --- a/src/engine/save.c +++ /dev/null @@ -1,929 +0,0 @@ -#include "global.h" -#include "gba/gba.h" -#include "gba/flash_internal.h" -#include "save.h" -#include "load_save.h" -#include "overworld.h" -#include "pokemon.h" -#include "save_failed_screen.h" -#include "ewram.h" - -#define FILE_SIGNATURE 0x08012025 // signature value to determine if a sector is in use - -//#define TOTAL_FLASH_SECTORS ((ARRAY_COUNT(sSaveBlockChunks) * 2) + (ARRAY_COUNT(sHallOfFameChunks) * 2)) // there are 2 slots, so double each array count and get the sum. -#define TOTAL_FLASH_SECTORS 32 - -struct SaveBlockChunk -{ - u8 *data; - u16 size; -}; - -struct SaveSector -{ - u8 data[0xFF4]; - u16 id; - u16 checksum; - u32 signature; - u32 counter; -}; // size is 0x1000 - -// headless save section? -struct UnkSaveSection -{ - u8 data[0xFF4]; - u32 signature; -}; // size is 0xFF8 - -static u8 WriteSingleChunk(u16, const struct SaveBlockChunk *); -static u8 HandleWriteSectorNBytes(u8 sector, u8 *data, u16 size); -static u8 TryWriteSector(u8, u8 *); -static u32 RestoreSaveBackupVarsAndIncrement(const struct SaveBlockChunk *location); -static u32 RestoreSaveBackupVars(const struct SaveBlockChunk *location); -static u8 sub_812550C(u16 a1, const struct SaveBlockChunk *location); -static u8 sub_812556C(u16 a1, const struct SaveBlockChunk *location); -static u8 sub_81255B8(u16, const struct SaveBlockChunk *location); -static u8 WriteSomeFlashByteToPrevSector(u16 a1, const struct SaveBlockChunk *location); -static u8 WriteSomeFlashByte0x25ToPrevSector(u16 a1, const struct SaveBlockChunk *location); -static u8 sub_812587C(u16 a1, const struct SaveBlockChunk *location); -static u8 sub_81258BC(u16, const struct SaveBlockChunk *location); -static u8 GetSaveValidStatus(const struct SaveBlockChunk *location); -static u8 ReadSomeUnknownSectorAndVerify(u8 a1, u8 *data, u16 size); -static u8 DoReadFlashWholeSection(u8, struct SaveSector *); -static u16 CalculateChecksum(void *, u16); -bool8 unref_sub_8125F4C(struct UnkSaveSection *a1); -u8 unref_sub_8125FA0(void); -u8 unref_sub_8125FF0(u8 *data, u16 size); -u8 unref_sub_8126068(u8 sector, u8 *data, u32 size); -u8 unref_sub_8126080(u8 sector, u8 *data); - -// 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 SaveSector *gFastSaveSection; // the pointer is in fast IWRAM but may sometimes point to the slower EWRAM. -u16 gUnknown_03005EB4; -u16 gSaveFileStatus; -u32 gGameContinueCallback; - -static EWRAM_DATA u32 gLastSaveSectorStatus = 0; // used but in an unferenced function, so unused - -// 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 - * Sectors 30 - 31: e-Reader battle tower data, maybe? - * - * 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. - */ - -#define HALL_OF_FAME_SECTOR 28 - -#define NUM_SECTORS_PER_SAVE_SLOT 14 // Number of sectors occupied by a save slot -#define NUM_HALL_OF_FAME_SECTORS 2 - -// Divide save blocks into individual chunks to be written to flash sectors - -#define SAVEBLOCK_CHUNK(structure, chunkNum) \ -{ \ - (u8 *)&structure + chunkNum * SECTOR_DATA_SIZE, \ - min(sizeof(structure) - chunkNum * SECTOR_DATA_SIZE, SECTOR_DATA_SIZE) \ -} \ - -static const struct SaveBlockChunk sSaveBlockChunks[] = -{ - SAVEBLOCK_CHUNK(gSaveBlock2, 0), - - SAVEBLOCK_CHUNK(gSaveBlock1, 0), - SAVEBLOCK_CHUNK(gSaveBlock1, 1), - SAVEBLOCK_CHUNK(gSaveBlock1, 2), - SAVEBLOCK_CHUNK(gSaveBlock1, 3), - - SAVEBLOCK_CHUNK(gPokemonStorage, 0), - SAVEBLOCK_CHUNK(gPokemonStorage, 1), - SAVEBLOCK_CHUNK(gPokemonStorage, 2), - SAVEBLOCK_CHUNK(gPokemonStorage, 3), - SAVEBLOCK_CHUNK(gPokemonStorage, 4), - SAVEBLOCK_CHUNK(gPokemonStorage, 5), - SAVEBLOCK_CHUNK(gPokemonStorage, 6), - SAVEBLOCK_CHUNK(gPokemonStorage, 7), - SAVEBLOCK_CHUNK(gPokemonStorage, 8), -}; - -static const struct SaveBlockChunk sHallOfFameChunks[] = -{ - SAVEBLOCK_CHUNK(*eHallOfFame, 0), - SAVEBLOCK_CHUNK(*eHallOfFame, 1), -}; - -void Save_EraseAllData(void) -{ - u16 i; - - for (i = 0; i < NUM_SECTORS; i++) - EraseFlashSector(i); -} - -void Save_ResetSaveCounters(void) -{ - gSaveCounter = 0; - gFirstSaveSector = 0; - gDamagedSaveSectors = 0; -} - -enum -{ - SECTOR_DAMAGED, - SECTOR_OK, - SECTOR_CHECK, // unused -}; - -static bool32 SetSectorDamagedStatus(u8 op, u8 sectorNum) -{ - bool32 retVal = FALSE; - - switch (op) - { - case SECTOR_DAMAGED: - gDamagedSaveSectors |= (1 << sectorNum); - break; - case SECTOR_OK: - gDamagedSaveSectors &= ~(1 << sectorNum); - break; - case SECTOR_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'. -static u8 WriteSaveBlockChunks(u16 chunkId, const struct SaveBlockChunk *chunks) -{ - u32 retVal; - u16 i; - - gFastSaveSection = eSaveSection; - - if (chunkId != 0xFFFF) // write single chunk - { - retVal = WriteSingleChunk(chunkId, chunks); - } - else // write all chunks - { - gLastKnownGoodSector = gFirstSaveSector; - gPrevSaveCounter = gSaveCounter; - gFirstSaveSector++; - gFirstSaveSector %= NUM_SECTORS_PER_SAVE_SLOT; - gSaveCounter++; - retVal = SAVE_STATUS_OK; - - for (i = 0; i < NUM_SECTORS_PER_SAVE_SLOT; i++) - WriteSingleChunk(i, chunks); - - // Check for any bad sectors - if (gDamagedSaveSectors != 0) // skip the damaged sector. - { - retVal = SAVE_STATUS_ERROR; - gFirstSaveSector = gLastKnownGoodSector; - gSaveCounter = gPrevSaveCounter; - } - } - - return retVal; -} - -static u8 WriteSingleChunk(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 SaveSector); i++) - ((u8 *)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); -} - -static u8 HandleWriteSectorNBytes(u8 sectorNum, u8 *data, u16 size) -{ - u16 i; - struct SaveSector *section = eSaveSection; - - for (i = 0; i < sizeof(struct SaveSector); 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(sectorNum, section->data); -} - -static u8 TryWriteSector(u8 sectorNum, u8 *data) -{ - if (ProgramFlashSectorAndVerify(sectorNum, data) != 0) // is damaged? - { - SetSectorDamagedStatus(SECTOR_DAMAGED, sectorNum); // set damaged sector bits. - return SAVE_STATUS_ERROR; - } - else - { - SetSectorDamagedStatus(SECTOR_OK, sectorNum); // unset damaged sector bits. it's safe now. - return SAVE_STATUS_OK; - } -} - -static u32 RestoreSaveBackupVarsAndIncrement(const struct SaveBlockChunk *chunk) // chunk is unused -{ - gFastSaveSection = eSaveSection; - gLastKnownGoodSector = gFirstSaveSector; - gPrevSaveCounter = gSaveCounter; - gFirstSaveSector++; - gFirstSaveSector %= NUM_SECTORS_PER_SAVE_SLOT; - gSaveCounter++; - gUnknown_03005EB4 = 0; - gDamagedSaveSectors = 0; - return 0; -} - -static u32 RestoreSaveBackupVars(const struct SaveBlockChunk *chunk) // chunk is unused -{ - gFastSaveSection = eSaveSection; - gLastKnownGoodSector = gFirstSaveSector; - gPrevSaveCounter = gSaveCounter; - gUnknown_03005EB4 = 0; - gDamagedSaveSectors = 0; - return 0; -} - -static u8 sub_812550C(u16 a1, const struct SaveBlockChunk *chunk) -{ - u8 retVal; - - if (gUnknown_03005EB4 < a1 - 1) - { - retVal = SAVE_STATUS_OK; - WriteSingleChunk(gUnknown_03005EB4, chunk); - gUnknown_03005EB4++; - if (gDamagedSaveSectors) - { - retVal = SAVE_STATUS_ERROR; - gFirstSaveSector = gLastKnownGoodSector; - gSaveCounter = gPrevSaveCounter; - } - } - else - { - retVal = SAVE_STATUS_ERROR; - } - - return retVal; -} - -static u8 sub_812556C(u16 a1, const struct SaveBlockChunk *chunk) -{ - u8 retVal = SAVE_STATUS_OK; - - sub_81255B8(a1 - 1, chunk); - - if (gDamagedSaveSectors) - { - retVal = SAVE_STATUS_ERROR; - gFirstSaveSector = gLastKnownGoodSector; - gSaveCounter = gPrevSaveCounter; - } - return retVal; -} - -static u8 sub_81255B8(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 SaveSector); 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(SECTOR_DAMAGED, 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(SECTOR_DAMAGED, sector); - return SAVE_STATUS_ERROR; - } - else - { - SetSectorDamagedStatus(SECTOR_OK, sector); - return SAVE_STATUS_OK; - } - } -} - -static u8 WriteSomeFlashByteToPrevSector(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(SECTOR_DAMAGED, sector); - gFirstSaveSector = gLastKnownGoodSector; - gSaveCounter = gPrevSaveCounter; - return SAVE_STATUS_ERROR; - } - else - { - SetSectorDamagedStatus(SECTOR_OK, sector); - return SAVE_STATUS_OK; - } -} - -static u8 WriteSomeFlashByte0x25ToPrevSector(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(SECTOR_DAMAGED, sector); - gFirstSaveSector = gLastKnownGoodSector; - gSaveCounter = gPrevSaveCounter; - return SAVE_STATUS_ERROR; - } - else - { - SetSectorDamagedStatus(SECTOR_OK, sector); - return SAVE_STATUS_OK; - } -} - -static u8 sub_812587C(u16 a1, const struct SaveBlockChunk *chunk) -{ - u8 retVal; - gFastSaveSection = eSaveSection; - if (a1 != 0xFFFF) - { - retVal = SAVE_STATUS_ERROR; - } - else - { - retVal = GetSaveValidStatus(chunk); - sub_81258BC(0xFFFF, chunk); - } - - return retVal; -} - -static u8 sub_81258BC(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; -} - -static 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; -} - -static u8 ReadSomeUnknownSectorAndVerify(u8 sector, u8 *data, u16 size) -{ - u16 i; - struct SaveSector *section = eSaveSection; - - 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 2; - } - } - else - { - return SAVE_STATUS_EMPTY; - } -} - -static u8 DoReadFlashWholeSection(u8 sector, struct SaveSector *section) -{ - ReadFlash(sector, 0, section->data, sizeof(struct SaveSector)); - return 1; -} - -static u16 CalculateChecksum(void *data, u16 size) -{ - u16 i; - u32 checksum = 0; - - for (i = 0; i < (size / 4); i++) - checksum += *((u32 *)data)++; - - return ((checksum >> 16) + checksum); -} - -#if DEBUG -void sub_813B79C(void) -{ - struct SaveSector *sbSector; - struct SaveSector *hofSector; - const struct SaveBlockChunk *sbChunks; - const struct SaveBlockChunk *hofChunks; - u16 i; - - sbSector = eSaveSection; - sbChunks = sSaveBlockChunks; - for (i = 0; i < NUM_SECTORS_PER_SAVE_SLOT * 2; i++) - { - DoReadFlashWholeSection(i, sbSector); - sbSector->checksum = CalculateChecksum(sbSector, sbChunks[sbSector->id].size); - ProgramFlashSectorAndVerify(i, sbSector->data); - } - - hofSector = eSaveSection; - hofChunks = sHallOfFameChunks; - for (i = 0; i < NUM_HALL_OF_FAME_SECTORS; i++) - { - DoReadFlashWholeSection(HALL_OF_FAME_SECTOR + i, hofSector); - hofSector->id = CalculateChecksum(hofSector, hofChunks[i].size); // why id? - ProgramFlashSectorAndVerify(HALL_OF_FAME_SECTOR + i, hofSector->data); - } -} -#endif - -u8 Save_WriteDataInternal(u8 saveType) -{ - u8 i; - - switch (saveType) - { - case SAVE_HALL_OF_FAME_ERASE_BEFORE: // wipes all hall of fame data, then saves hall of fame. unused - for (i = HALL_OF_FAME_SECTOR; i < TOTAL_FLASH_SECTORS; i++) - EraseFlashSector(i); - // fall through - case SAVE_HALL_OF_FAME: // hall of fame. - if (GetGameStat(GAME_STAT_ENTERED_HOF) < 999) - IncrementGameStat(GAME_STAT_ENTERED_HOF); - for (i = 0; i < NUM_HALL_OF_FAME_SECTORS; i++) - HandleWriteSectorNBytes(HALL_OF_FAME_SECTOR + i, sHallOfFameChunks[i].data, sHallOfFameChunks[i].size); - SaveSerializedGame(); - WriteSaveBlockChunks(0xFFFF, sSaveBlockChunks); - break; - case SAVE_NORMAL: // normal save. also called by overwriting your own save. - default: - SaveSerializedGame(); - WriteSaveBlockChunks(0xFFFF, sSaveBlockChunks); - break; - case SAVE_LINK: // link save. updates only gSaveBlock1 and gSaveBlock2. - SaveSerializedGame(); - for (i = 0; i < 5; i++) - WriteSaveBlockChunks(i, sSaveBlockChunks); - break; - case SAVE_EREADER: // used in mossdeep "game corner" before/after battling old man e-reader trainer - SaveSerializedGame(); - WriteSaveBlockChunks(0, sSaveBlockChunks); - break; - case SAVE_OVERWRITE_DIFFERENT_FILE: // there is a different file, so overwrite it completely. - // Erase Hall of Fame. - for (i = HALL_OF_FAME_SECTOR; i < TOTAL_FLASH_SECTORS; i++) - EraseFlashSector(i); - SaveSerializedGame(); - WriteSaveBlockChunks(0xFFFF, sSaveBlockChunks); - break; - } - return 0; -} - -#if DEBUG -extern u32 gUnknown_Debug_03004BD0; -#endif - -u8 Save_WriteData(u8 saveType) // TrySave -{ - if (gFlashMemoryPresent != TRUE) - return SAVE_STATUS_ERROR; - - Save_WriteDataInternal(saveType); - if (!gDamagedSaveSectors -#if DEBUG - && gUnknown_Debug_03004BD0 == 0 -#endif - ) - return SAVE_STATUS_OK; - - DoSaveFailedScreen(saveType); - return SAVE_STATUS_ERROR; -} - -u8 sub_8125D80(void) // trade.s save -{ - if (gFlashMemoryPresent != TRUE) - return 1; - SaveSerializedGame(); - RestoreSaveBackupVarsAndIncrement(sSaveBlockChunks); - return 0; -} - -bool8 sub_8125DA8(void) // trade.s save -{ - u8 retVal = sub_812550C(ARRAY_COUNT(sSaveBlockChunks), sSaveBlockChunks); - if (gDamagedSaveSectors) - DoSaveFailedScreen(0); - if (retVal == SAVE_STATUS_ERROR) - return 1; - else - return 0; -} - -u8 sub_8125DDC(void) // trade.s save -{ - sub_812556C(ARRAY_COUNT(sSaveBlockChunks), sSaveBlockChunks); - if (gDamagedSaveSectors) - DoSaveFailedScreen(0); - return 0; -} - -u8 sub_8125E04(void) // trade.s save -{ - WriteSomeFlashByteToPrevSector(ARRAY_COUNT(sSaveBlockChunks), sSaveBlockChunks); - if (gDamagedSaveSectors) - DoSaveFailedScreen(0); - return 0; -} - -u8 sub_8125E2C(void) -{ - if (gFlashMemoryPresent != TRUE) - return 1; - - SaveSerializedGame(); - RestoreSaveBackupVars(sSaveBlockChunks); - sub_812556C(gUnknown_03005EB4 + 1, sSaveBlockChunks); - return 0; -} - -// something to do with multiplayer. Possibly record mizing? -bool8 sub_8125E6C(void) -{ - u8 retVal = FALSE; - u16 val = ++gUnknown_03005EB4; - if (val <= 4) - { - sub_812556C(gUnknown_03005EB4 + 1, sSaveBlockChunks); - WriteSomeFlashByte0x25ToPrevSector(val, sSaveBlockChunks); - } - else - { - WriteSomeFlashByte0x25ToPrevSector(val, sSaveBlockChunks); - retVal = TRUE; - } - if (gDamagedSaveSectors) - DoSaveFailedScreen(1); - return retVal; -} - -u8 Save_LoadGameData(u8 saveType) -{ - u8 result; - - if (gFlashMemoryPresent != TRUE) - { - gSaveFileStatus = SAVE_STATUS_NO_FLASH; - return SAVE_STATUS_ERROR; - } - - switch (saveType) - { - case SAVE_NORMAL: - default: - result = sub_812587C(0xFFFF, sSaveBlockChunks); - LoadSerializedGame(); - gSaveFileStatus = result; - gGameContinueCallback = 0; - break; - case SAVE_HALL_OF_FAME: - result = ReadSomeUnknownSectorAndVerify(HALL_OF_FAME_SECTOR, sHallOfFameChunks[0].data, sHallOfFameChunks[0].size); - if (result == SAVE_STATUS_OK) - result = ReadSomeUnknownSectorAndVerify(HALL_OF_FAME_SECTOR + 1, sHallOfFameChunks[1].data, sHallOfFameChunks[1].size); - break; - } - - return result; -} - -const u8 sUnusedFlashSectors[] = { 30, 31 }; - -bool8 unref_sub_8125F4C(struct UnkSaveSection *a1) -{ - u16 i; - char *raw = (char *)a1; - - for (i = 0; i < sizeof(struct SaveSector); i++) - raw[i] = 0; - - ReadFlash(sUnusedFlashSectors[0], 0, a1->data, 4096); - - if (a1->signature != FILE_SIGNATURE) - return FALSE; - - return TRUE; -} - -u8 unref_sub_8125FA0(void) -{ - u16 i; - u8 status = Save_WriteData(SAVE_NORMAL); - - for (i = 0; i < 2; i++) - EraseFlashSector(sUnusedFlashSectors[i]); - - if (status == SAVE_STATUS_ERROR) - { - return 3; - } - else if (status == 3) - { - return 2; - } - else - { - Save_LoadGameData(SAVE_NORMAL); - return 1; - } -} - -u8 unref_sub_8125FF0(u8 *data, u16 size) -{ - u16 i; - struct UnkSaveSection *section = (struct UnkSaveSection *)eSaveSection; - - for (i = 0; i < sizeof(struct SaveSector); i++) - ((char *)section)[i] = 0; - - section->signature = FILE_SIGNATURE; - - for (i = 0; i < size; i++) - section->data[i] = data[i]; - - gLastSaveSectorStatus = ProgramFlashSectorAndVerifyNBytes(sUnusedFlashSectors[0], section, sizeof(struct SaveSector)); - - if (gLastSaveSectorStatus) - return SAVE_STATUS_ERROR; - else - return SAVE_STATUS_OK; -} - -u8 unref_sub_8126068(u8 sector, u8 *data, u32 size) -{ - if (ProgramFlashSectorAndVerify(sector, data)) - return SAVE_STATUS_ERROR; - else - return SAVE_STATUS_OK; -} - -u8 unref_sub_8126080(u8 sector, u8 *data) -{ - ReadFlash(sector, 0, data, sizeof(struct SaveSector)); - return 1; -} |