mirror of
https://github.com/Ninjdai1/pokeemerald.git
synced 2024-11-17 20:17:38 +01:00
897 lines
22 KiB
C
897 lines
22 KiB
C
#include "global.h"
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#include "gba/flash_internal.h"
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#include "save.h"
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#include "game_stat.h"
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extern struct SaveSectionOffsets gSaveSectionOffsets[0xE];
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extern struct SaveSectionLocation gRamSaveSectionLocations[0xE];
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extern u8 gDecompressionBuffer[];
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extern u32 gFlashMemoryPresent;
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extern u16 gUnknown_03006294;
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extern void DoSaveFailedScreen(u8); // save_failed_screen
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extern void LoadSerializedGame(void); // load_save
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extern bool32 ProgramFlashSectorAndVerify(u8 sector, u8 *data);
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extern void ReadFlash(u8 sector, u32 arg1, void* data, u32 size);
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// iwram common
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u16 gLastWrittenSector;
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u32 gLastSaveCounter;
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u16 gLastKnownGoodSector;
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u32 gDamagedSaveSectors;
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u32 gSaveCounter;
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struct SaveSection *gFastSaveSection;
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u16 gUnknown_03006208;
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u16 gSaveUnusedVar;
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u16 gSaveFileStatus;
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void (*gGameContinueCallback)(void);
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EWRAM_DATA struct SaveSection gSaveDataBuffer = {0};
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void ClearSaveData(void)
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{
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u16 i;
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for (i = 0; i < NUM_SECTORS_PER_SLOT; i++)
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{
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EraseFlashSector(i);
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EraseFlashSector(i + NUM_SECTORS_PER_SLOT); // clear slot 2.
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}
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}
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void ResetSaveCounters(void)
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{
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gSaveCounter = 0;
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gLastWrittenSector = 0;
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gDamagedSaveSectors = 0;
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}
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bool32 SetDamagedSectorBits(u8 op, u8 bit)
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{
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bool32 retVal = FALSE;
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switch (op)
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{
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case ENABLE:
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gDamagedSaveSectors |= (1 << bit);
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break;
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case DISABLE:
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gDamagedSaveSectors &= ~(1 << bit);
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break;
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case CHECK: // unused
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if (gDamagedSaveSectors & (1 << bit))
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retVal = TRUE;
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break;
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}
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return retVal;
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}
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u8 save_write_to_flash(u16 a1, const struct SaveSectionLocation *location)
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{
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u32 retVal;
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u16 i;
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gFastSaveSection = &gSaveDataBuffer;
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if (a1 != 0xFFFF) // for link
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{
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retVal = HandleWriteSector(a1, location);
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}
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else
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{
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gLastKnownGoodSector = gLastWrittenSector; // backup the current written sector before attempting to write.
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gLastSaveCounter = gSaveCounter;
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gLastWrittenSector++;
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gLastWrittenSector = gLastWrittenSector % 0xE; // array count save sector locations
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gSaveCounter++;
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retVal = 1;
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for (i = 0; i < 0xE; i++)
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HandleWriteSector(i, location);
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if (gDamagedSaveSectors != 0) // skip the damaged sector.
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{
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retVal = 0xFF;
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gLastWrittenSector = gLastKnownGoodSector;
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gSaveCounter = gLastSaveCounter;
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}
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}
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return retVal;
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}
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u8 HandleWriteSector(u16 a1, const struct SaveSectionLocation *location)
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{
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u16 i;
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u16 sector;
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u8 *data;
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u16 size;
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sector = a1 + gLastWrittenSector;
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sector %= 0xE;
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sector += 0xE * (gSaveCounter % 2);
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data = location[a1].data;
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size = location[a1].size;
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// clear save section.
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for (i = 0; i < sizeof(struct SaveSection); i++)
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((char *)gFastSaveSection)[i] = 0;
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gFastSaveSection->id = a1;
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gFastSaveSection->security = UNKNOWN_CHECK_VALUE;
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gFastSaveSection->counter = gSaveCounter;
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for (i = 0; i < size; i++)
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gFastSaveSection->data[i] = data[i];
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gFastSaveSection->checksum = CalculateChecksum(data, size);
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return TryWriteSector(sector, gFastSaveSection->data);
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}
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u8 HandleWriteSectorNBytes(u8 sector, u8 *data, u16 size)
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{
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u16 i;
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struct SaveSection *section = &gSaveDataBuffer;
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for (i = 0; i < sizeof(struct SaveSection); i++)
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((char *)section)[i] = 0;
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section->security = UNKNOWN_CHECK_VALUE;
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for (i = 0; i < size; i++)
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section->data[i] = data[i];
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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.
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return TryWriteSector(sector, section->data);
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}
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u8 TryWriteSector(u8 sector, u8 *data)
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{
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if (ProgramFlashSectorAndVerify(sector, data) != 0) // is damaged?
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{
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SetDamagedSectorBits(ENABLE, sector); // set damaged sector bits.
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return 0xFF;
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}
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else
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{
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SetDamagedSectorBits(DISABLE, sector); // unset damaged sector bits. it's safe now.
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return 1;
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}
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}
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u32 RestoreSaveBackupVarsAndIncrement(const struct SaveSectionLocation *location) // location is unused
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{
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gFastSaveSection = &gSaveDataBuffer;
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gLastKnownGoodSector = gLastWrittenSector;
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gLastSaveCounter = gSaveCounter;
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gLastWrittenSector++;
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gLastWrittenSector = gLastWrittenSector % 0xE;
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gSaveCounter++;
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gUnknown_03006208 = 0;
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gDamagedSaveSectors = 0;
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return 0;
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}
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u32 RestoreSaveBackupVars(const struct SaveSectionLocation *location) // only ever called once, and gSaveBlock2 is passed to this function. location is unused
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{
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gFastSaveSection = &gSaveDataBuffer;
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gLastKnownGoodSector = gLastWrittenSector;
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gLastSaveCounter = gSaveCounter;
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gUnknown_03006208 = 0;
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gDamagedSaveSectors = 0;
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return 0;
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}
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u8 sub_81529D4(u16 a1, const struct SaveSectionLocation *location)
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{
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u8 retVal;
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if (gUnknown_03006208 < a1 - 1)
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{
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retVal = 1;
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HandleWriteSector(gUnknown_03006208, location);
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gUnknown_03006208++;
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if (gDamagedSaveSectors)
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{
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retVal = 0xFF;
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gLastWrittenSector = gLastKnownGoodSector;
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gSaveCounter = gLastSaveCounter;
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}
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}
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else
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{
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retVal = 0xFF;
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}
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return retVal;
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}
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u8 sub_8152A34(u16 a1, const struct SaveSectionLocation *location)
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{
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u8 retVal = 1;
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ClearSaveData_2(a1 - 1, location);
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if (gDamagedSaveSectors)
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{
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retVal = 0xFF;
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gLastWrittenSector = gLastKnownGoodSector;
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gSaveCounter = gLastSaveCounter;
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}
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return retVal;
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}
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u8 ClearSaveData_2(u16 a1, const struct SaveSectionLocation *location)
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{
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u16 i;
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u16 sector;
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u8 *data;
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u16 size;
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u8 status;
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sector = a1 + gLastWrittenSector;
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sector %= 0xE;
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sector += 0xE * (gSaveCounter % 2);
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data = location[a1].data;
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size = location[a1].size;
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// clear temp save section.
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for (i = 0; i < sizeof(struct SaveSection); i++)
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((char *)gFastSaveSection)[i] = 0;
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gFastSaveSection->id = a1;
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gFastSaveSection->security = UNKNOWN_CHECK_VALUE;
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gFastSaveSection->counter = gSaveCounter;
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// set temp section's data.
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for (i = 0; i < size; i++)
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gFastSaveSection->data[i] = data[i];
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// calculate checksum.
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gFastSaveSection->checksum = CalculateChecksum(data, size);
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EraseFlashSector(sector);
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status = 1;
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for (i = 0; i < sizeof(struct UnkSaveSection); i++)
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{
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if (ProgramFlashByte(sector, i, ((u8 *)gFastSaveSection)[i]))
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{
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status = 0xFF;
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break;
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}
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}
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if (status == 0xFF)
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{
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SetDamagedSectorBits(ENABLE, sector);
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return 0xFF;
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}
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else
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{
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status = 1;
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for (i = 0; i < 7; i++)
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{
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if (ProgramFlashByte(sector, 0xFF9 + i, ((u8 *)gFastSaveSection)[0xFF9 + i]))
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{
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status = 0xFF;
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break;
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}
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}
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if (status == 0xFF)
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{
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SetDamagedSectorBits(ENABLE, sector);
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return 0xFF;
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}
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else
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{
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SetDamagedSectorBits(DISABLE, sector);
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return 1;
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}
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}
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}
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u8 sav12_xor_get(u16 a1, const struct SaveSectionLocation *location)
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{
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u16 sector;
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sector = a1 + gLastWrittenSector; // no sub 1?
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sector %= 0xE;
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sector += 0xE * (gSaveCounter % 2);
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if (ProgramFlashByte(sector, sizeof(struct UnkSaveSection), 0x25))
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{
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// sector is damaged, so enable the bit in gDamagedSaveSectors and restore the last written sector and save counter.
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SetDamagedSectorBits(ENABLE, sector);
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gLastWrittenSector = gLastKnownGoodSector;
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gSaveCounter = gLastSaveCounter;
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return 0xFF;
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}
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else
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{
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SetDamagedSectorBits(DISABLE, sector);
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return 1;
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}
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}
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u8 sub_8152CAC(u16 a1, const struct SaveSectionLocation *location)
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{
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u16 sector;
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sector = a1 + gLastWrittenSector - 1;
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sector %= 0xE;
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sector += 0xE * (gSaveCounter % 2);
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if (ProgramFlashByte(sector, sizeof(struct UnkSaveSection), ((u8 *)gFastSaveSection)[sizeof(struct UnkSaveSection)]))
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{
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// sector is damaged, so enable the bit in gDamagedSaveSectors and restore the last written sector and save counter.
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SetDamagedSectorBits(ENABLE, sector);
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gLastWrittenSector = gLastKnownGoodSector;
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gSaveCounter = gLastSaveCounter;
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return 0xFF;
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}
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else
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{
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SetDamagedSectorBits(DISABLE, sector);
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return 1;
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}
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}
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u8 sub_8152D44(u16 a1, const struct SaveSectionLocation *location)
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{
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u16 sector;
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sector = a1 + gLastWrittenSector - 1; // no sub 1?
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sector %= 0xE;
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sector += 0xE * (gSaveCounter % 2);
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if (ProgramFlashByte(sector, sizeof(struct UnkSaveSection), 0x25))
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{
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// sector is damaged, so enable the bit in gDamagedSaveSectors and restore the last written sector and save counter.
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SetDamagedSectorBits(ENABLE, sector);
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gLastWrittenSector = gLastKnownGoodSector;
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gSaveCounter = gLastSaveCounter;
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return 0xFF;
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}
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else
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{
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SetDamagedSectorBits(DISABLE, sector);
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return 1;
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}
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}
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u8 sub_8152DD0(u16 a1, const struct SaveSectionLocation *location)
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{
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u8 retVal;
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gFastSaveSection = &gSaveDataBuffer;
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if (a1 != 0xFFFF)
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{
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retVal = 0xFF;
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}
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else
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{
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retVal = GetSaveValidStatus(location);
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sub_8152E10(0xFFFF, location);
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}
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return retVal;
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}
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u8 sub_8152E10(u16 a1, const struct SaveSectionLocation *location)
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{
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u16 i;
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u16 checksum;
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u16 v3 = 0xE * (gSaveCounter % 2);
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u16 id;
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for (i = 0; i < 0xE; i++)
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{
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DoReadFlashWholeSection(i + v3, gFastSaveSection);
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id = gFastSaveSection->id;
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if (id == 0)
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gLastWrittenSector = i;
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checksum = CalculateChecksum(gFastSaveSection->data, location[id].size);
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if (gFastSaveSection->security == UNKNOWN_CHECK_VALUE
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&& gFastSaveSection->checksum == checksum)
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{
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u16 j;
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for (j = 0; j < location[id].size; j++)
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((u8 *)location[id].data)[j] = gFastSaveSection->data[j];
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}
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}
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return 1;
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}
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u8 GetSaveValidStatus(const struct SaveSectionLocation *location)
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{
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u16 i;
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u16 checksum;
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u32 saveSlot1Counter = 0;
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u32 saveSlot2Counter = 0;
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u32 slotCheckField = 0;
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bool8 securityPassed = FALSE;
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u8 saveSlot1Status;
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u8 saveSlot2Status;
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// check save slot 1.
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for (i = 0; i < 0xE; i++)
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{
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DoReadFlashWholeSection(i, gFastSaveSection);
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if (gFastSaveSection->security == UNKNOWN_CHECK_VALUE)
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{
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securityPassed = TRUE;
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checksum = CalculateChecksum(gFastSaveSection->data, location[gFastSaveSection->id].size);
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if (gFastSaveSection->checksum == checksum)
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{
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saveSlot1Counter = gFastSaveSection->counter;
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slotCheckField |= 1 << gFastSaveSection->id;
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}
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}
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}
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if (securityPassed)
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{
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if (slotCheckField == 0x3FFF)
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saveSlot1Status = 1;
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else
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saveSlot1Status = 255;
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}
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else
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{
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saveSlot1Status = 0;
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}
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slotCheckField = 0;
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securityPassed = FALSE;
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// check save slot 2.
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for (i = 0; i < 0xE; i++)
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{
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DoReadFlashWholeSection(i + 0xE, gFastSaveSection);
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if (gFastSaveSection->security == UNKNOWN_CHECK_VALUE)
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{
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securityPassed = TRUE;
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checksum = CalculateChecksum(gFastSaveSection->data, location[gFastSaveSection->id].size);
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if (gFastSaveSection->checksum == checksum)
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{
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saveSlot2Counter = gFastSaveSection->counter;
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slotCheckField |= 1 << gFastSaveSection->id;
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}
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}
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}
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if (securityPassed)
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{
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if (slotCheckField == 0x3FFF)
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saveSlot2Status = 1;
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else
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saveSlot2Status = 255;
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}
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else
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{
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saveSlot2Status = 0;
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}
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if (saveSlot1Status == 1 && saveSlot2Status == 1)
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{
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if ((saveSlot1Counter == -1 && saveSlot2Counter == 0) || (saveSlot1Counter == 0 && saveSlot2Counter == -1))
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{
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if ((unsigned)(saveSlot1Counter + 1) < (unsigned)(saveSlot2Counter + 1))
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{
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gSaveCounter = saveSlot2Counter;
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}
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else
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{
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gSaveCounter = saveSlot1Counter;
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}
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}
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else
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{
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if (saveSlot1Counter < saveSlot2Counter)
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{
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gSaveCounter = saveSlot2Counter;
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}
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else
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{
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gSaveCounter = saveSlot1Counter;
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}
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}
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return 1;
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}
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if (saveSlot1Status == 1)
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{
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gSaveCounter = saveSlot1Counter;
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if (saveSlot2Status == 255)
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return 255;
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return 1;
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}
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if (saveSlot2Status == 1)
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{
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gSaveCounter = saveSlot2Counter;
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if (saveSlot1Status == 255)
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return 255;
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return 1;
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}
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if (saveSlot1Status == 0 && saveSlot2Status == 0)
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{
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gSaveCounter = 0;
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gLastWrittenSector = 0;
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return 0;
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}
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gSaveCounter = 0;
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gLastWrittenSector = 0;
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return 2;
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}
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u8 sub_81530DC(u8 a1, u8 *data, u16 size)
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{
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u16 i;
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struct SaveSection *section = &gSaveDataBuffer;
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DoReadFlashWholeSection(a1, section);
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if (section->security == UNKNOWN_CHECK_VALUE)
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{
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u16 checksum = CalculateChecksum(section->data, size);
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if (section->id == checksum)
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{
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for (i = 0; i < size; i++)
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data[i] = section->data[i];
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return 1;
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}
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else
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{
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return 2;
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}
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}
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else
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{
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return 0;
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}
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}
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u8 DoReadFlashWholeSection(u8 sector, struct SaveSection *section)
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{
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ReadFlash(sector, 0, section->data, sizeof(struct SaveSection));
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return 1;
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}
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u16 CalculateChecksum(void *data, u16 size)
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{
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u16 i;
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u32 checksum = 0;
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for (i = 0; i < (size / 4); i++)
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checksum += *((u32 *)data)++;
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|
return ((checksum >> 16) + checksum);
|
|
}
|
|
|
|
#ifdef NONMATCHING
|
|
// the initial allocation of the pointer and toAdd variable doesnt match up with the original function. however, forcing it is impossible since gRamSaveSectionLocations is loaded first.
|
|
void UpdateSaveAddresses(void)
|
|
{
|
|
int i = 0;
|
|
gRamSaveSectionLocations[i].data = gSaveBlock2Ptr + gSaveSectionOffsets[0].toAdd;
|
|
gRamSaveSectionLocations[i].size = gSaveSectionOffsets[0].size;
|
|
|
|
for(i = 1; i < 5; i++)
|
|
{
|
|
gRamSaveSectionLocations[i].data = gSaveBlock1Ptr + gSaveSectionOffsets[i].toAdd;
|
|
gRamSaveSectionLocations[i].size = gSaveSectionOffsets[i].size;
|
|
}
|
|
|
|
for(i = 5; i < 14; i++)
|
|
{
|
|
gRamSaveSectionLocations[i].data = gPokemonStoragePtr + gSaveSectionOffsets[i].toAdd;
|
|
gRamSaveSectionLocations[i].size = gSaveSectionOffsets[i].size;
|
|
}
|
|
}
|
|
#else
|
|
__attribute__((naked))
|
|
void UpdateSaveAddresses(void)
|
|
{
|
|
asm(".syntax unified\n\
|
|
push {r4,r5,lr}\n\
|
|
ldr r3, =gRamSaveSectionLocations\n\
|
|
ldr r0, =gSaveBlock2Ptr\n\
|
|
ldr r2, =gSaveSectionOffsets\n\
|
|
ldrh r1, [r2]\n\
|
|
ldr r0, [r0]\n\
|
|
adds r0, r1\n\
|
|
str r0, [r3]\n\
|
|
ldrh r0, [r2, 0x2]\n\
|
|
strh r0, [r3, 0x4]\n\
|
|
ldr r5, =gSaveBlock1Ptr\n\
|
|
adds r3, 0x8\n\
|
|
adds r2, 0x4\n\
|
|
movs r4, 0x3\n\
|
|
_081531AC:\n\
|
|
ldrh r0, [r2]\n\
|
|
ldr r1, [r5]\n\
|
|
adds r1, r0\n\
|
|
str r1, [r3]\n\
|
|
ldrh r0, [r2, 0x2]\n\
|
|
strh r0, [r3, 0x4]\n\
|
|
adds r3, 0x8\n\
|
|
adds r2, 0x4\n\
|
|
subs r4, 0x1\n\
|
|
cmp r4, 0\n\
|
|
bge _081531AC\n\
|
|
movs r4, 0x5\n\
|
|
ldr r1, =gRamSaveSectionLocations\n\
|
|
ldr r5, =gPokemonStoragePtr\n\
|
|
ldr r0, =gSaveSectionOffsets\n\
|
|
adds r3, r1, 0\n\
|
|
adds r3, 0x28\n\
|
|
adds r2, r0, 0\n\
|
|
adds r2, 0x14\n\
|
|
_081531D2:\n\
|
|
ldrh r0, [r2]\n\
|
|
ldr r1, [r5]\n\
|
|
adds r1, r0\n\
|
|
str r1, [r3]\n\
|
|
ldrh r0, [r2, 0x2]\n\
|
|
strh r0, [r3, 0x4]\n\
|
|
adds r3, 0x8\n\
|
|
adds r2, 0x4\n\
|
|
adds r4, 0x1\n\
|
|
cmp r4, 0xD\n\
|
|
ble _081531D2\n\
|
|
pop {r4,r5}\n\
|
|
pop {r0}\n\
|
|
bx r0\n\
|
|
.pool\n\
|
|
.syntax divided");
|
|
}
|
|
#endif
|
|
|
|
extern u32 GetGameStat(u8 index); // rom4
|
|
extern void IncrementGameStat(u8 index); // rom4
|
|
extern void SaveSerializedGame(void); // load_save
|
|
extern u32 gUnknown_0203CF5C;
|
|
|
|
u8 HandleSavingData(u8 saveType)
|
|
{
|
|
u8 i;
|
|
u32 backupVar = gUnknown_0203CF5C;
|
|
u8 *tempAddr;
|
|
|
|
gUnknown_0203CF5C = 0;
|
|
UpdateSaveAddresses();
|
|
switch (saveType)
|
|
{
|
|
case HOF_DELETE_SAVE: // deletes HOF before overwriting HOF completely. unused
|
|
for (i = 0xE * 2 + 0; i < 32; i++)
|
|
EraseFlashSector(i);
|
|
case HOF_SAVE: // hall of fame.
|
|
if (GetGameStat(GAME_STAT_ENTERED_HOF) < 999)
|
|
IncrementGameStat(GAME_STAT_ENTERED_HOF);
|
|
SaveSerializedGame();
|
|
save_write_to_flash(0xFFFF, gRamSaveSectionLocations);
|
|
tempAddr = (u8 *)0x201C000; // FIXME: make this a label.
|
|
HandleWriteSectorNBytes(0x1C, tempAddr, 0xF80);
|
|
HandleWriteSectorNBytes(0x1D, tempAddr + 0xF80, 0xF80);
|
|
break;
|
|
case NORMAL_SAVE: // normal save. also called by overwriting your own save.
|
|
default:
|
|
SaveSerializedGame();
|
|
save_write_to_flash(0xFFFF, gRamSaveSectionLocations);
|
|
break;
|
|
case LINK_SAVE: // _081532C4
|
|
case LINK2_SAVE:
|
|
SaveSerializedGame();
|
|
for(i = 0; i < 5; i++)
|
|
ClearSaveData_2(i, gRamSaveSectionLocations);
|
|
for(i = 0; i < 5; i++)
|
|
sav12_xor_get(i, gRamSaveSectionLocations);
|
|
break;
|
|
// support for Ereader was removed in Emerald.
|
|
/*
|
|
case EREADER_SAVE: // used in mossdeep "game corner" before/after battling old man e-reader trainer
|
|
SaveSerializedGame();
|
|
save_write_to_flash(0, gRamSaveSectionLocations);
|
|
break;
|
|
*/
|
|
case DIFFERENT_FILE_SAVE:
|
|
for (i = (0xE * 2 + 0); i < 32; i++)
|
|
EraseFlashSector(i); // erase HOF.
|
|
SaveSerializedGame();
|
|
save_write_to_flash(0xFFFF, gRamSaveSectionLocations);
|
|
break;
|
|
}
|
|
gUnknown_0203CF5C = backupVar;
|
|
return 0;
|
|
}
|
|
|
|
u8 TrySavingData(u8 saveType) // TrySave
|
|
{
|
|
if(gFlashMemoryPresent == TRUE)
|
|
{
|
|
HandleSavingData(saveType);
|
|
if(gDamagedSaveSectors)
|
|
DoSaveFailedScreen(saveType);
|
|
else
|
|
goto OK; // really?
|
|
}
|
|
gUnknown_03006294 = 0xFF;
|
|
return 0xFF;
|
|
|
|
OK:
|
|
gUnknown_03006294 = 1;
|
|
return 1;
|
|
}
|
|
|
|
u8 sub_8153380(void) // trade.s save
|
|
{
|
|
if (gFlashMemoryPresent != TRUE)
|
|
return 1;
|
|
UpdateSaveAddresses();
|
|
SaveSerializedGame();
|
|
RestoreSaveBackupVarsAndIncrement(gRamSaveSectionLocations);
|
|
return 0;
|
|
}
|
|
|
|
bool8 sub_81533AC(void) // trade.s save
|
|
{
|
|
u8 retVal = sub_81529D4(0xE, gRamSaveSectionLocations);
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(0);
|
|
if (retVal == 0xFF)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
u8 sub_81533E0(void) // trade.s save
|
|
{
|
|
sub_8152A34(0xE, gRamSaveSectionLocations);
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(0);
|
|
return 0;
|
|
}
|
|
|
|
u8 sub_8153408(void) // trade.s save
|
|
{
|
|
sub_8152CAC(0xE, gRamSaveSectionLocations);
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(0);
|
|
return 0;
|
|
}
|
|
|
|
u8 sub_8153430(void)
|
|
{
|
|
if (gFlashMemoryPresent != TRUE)
|
|
return 1;
|
|
|
|
UpdateSaveAddresses();
|
|
SaveSerializedGame();
|
|
RestoreSaveBackupVars(gRamSaveSectionLocations);
|
|
sub_8152A34(gUnknown_03006208 + 1, gRamSaveSectionLocations);
|
|
return 0;
|
|
}
|
|
|
|
bool8 sub_8153474(void)
|
|
{
|
|
u8 retVal = FALSE;
|
|
u16 val = ++gUnknown_03006208;
|
|
if (val <= 4)
|
|
{
|
|
sub_8152A34(gUnknown_03006208 + 1, gRamSaveSectionLocations);
|
|
sub_8152D44(val, gRamSaveSectionLocations);
|
|
}
|
|
else
|
|
{
|
|
sub_8152D44(val, gRamSaveSectionLocations);
|
|
retVal = TRUE;
|
|
}
|
|
if (gDamagedSaveSectors)
|
|
DoSaveFailedScreen(1);
|
|
return retVal;
|
|
}
|
|
|
|
u8 sub_81534D0(u8 a1)
|
|
{
|
|
u8 result;
|
|
|
|
if (gFlashMemoryPresent != TRUE)
|
|
{
|
|
gSaveFileStatus = 4;
|
|
return 0xFF;
|
|
}
|
|
|
|
UpdateSaveAddresses();
|
|
switch (a1)
|
|
{
|
|
case 0:
|
|
default:
|
|
result = sub_8152DD0(0xFFFF, gRamSaveSectionLocations);
|
|
LoadSerializedGame();
|
|
gSaveFileStatus = result;
|
|
gGameContinueCallback = 0;
|
|
break;
|
|
case 3:
|
|
result = sub_81530DC(0x1C, gDecompressionBuffer, 0xF80);
|
|
if(result == 1)
|
|
result = sub_81530DC(0x1D, gDecompressionBuffer + 0xF80, 0xF80);
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
u16 sub_815355C(void)
|
|
{
|
|
u16 i, v3;
|
|
struct SaveSection* savSection;
|
|
|
|
savSection = gFastSaveSection = &gSaveDataBuffer;
|
|
if (gFlashMemoryPresent != 1)
|
|
return 0;
|
|
UpdateSaveAddresses();
|
|
GetSaveValidStatus(gRamSaveSectionLocations);
|
|
v3 = 0xE * (gSaveCounter % 2);
|
|
for (i = 0; i < 14; i++)
|
|
{
|
|
DoReadFlashWholeSection(i + v3, gFastSaveSection);
|
|
if (gFastSaveSection->id == 0)
|
|
return savSection->data[10] +
|
|
savSection->data[11] +
|
|
savSection->data[12] +
|
|
savSection->data[13];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
u32 sub_81535DC(u8 sector, u8* dst)
|
|
{
|
|
s32 i;
|
|
s32 size;
|
|
u8* savData;
|
|
|
|
if (sector != 30 && sector != 31)
|
|
return 0xFF;
|
|
ReadFlash(sector, 0, &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 sub_8153634(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;
|
|
}
|