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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#pragma once
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#include "common.h"
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#include "nand.h"
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#define AGBSAVE_MAGIC '.', 'S', 'A', 'V'
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#define AGBSAVE_MAX_SIZE (0x000180 * 0x200) // standard size of the NAND partition
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#define AGBSAVE_MAX_SSIZE (AGBSAVE_MAX_SIZE - sizeof(AgbSaveHeader))
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// see: http://3dbrew.org/wiki/3DS_Virtual_Console#GBA_VC
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#define GBASAVE_EEPROM_512 (512)
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#define GBASAVE_EEPROM_8K (8 * 1024)
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#define GBASAVE_SRAM_32K (32 * 1024)
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#define GBASAVE_FLASH_64K (64 * 1024)
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#define GBASAVE_FLASH_128K (128 * 1024)
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#define GBASAVE_VALID(size) \
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(((size) == GBASAVE_EEPROM_512) || \
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((size) == GBASAVE_EEPROM_8K) || \
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((size) == GBASAVE_SRAM_32K) || \
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((size) == GBASAVE_FLASH_64K) || \
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((size) == GBASAVE_FLASH_128K))
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// see: http://3dbrew.org/wiki/3DS_Virtual_Console#NAND_Savegame
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typedef struct {
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u8 magic[4]; // ".SAV"
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u8 reserved0[0xC]; // always 0xFF
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u8 cmac[0x10];
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u8 reserved1[0x10]; // always 0xFF
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u32 unknown0; // always 0x01
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u32 times_saved;
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u64 title_id;
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u8 sd_cid[0x10];
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u32 save_start; // always 0x200
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u32 save_size;
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u8 reserved2[0x8]; // always 0xFF
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u32 unknown1; // has to do with ARM7?
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u32 unknown2; // has to do with ARM7?
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u8 reserved3[0x198]; // always 0xFF
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} __attribute__((packed)) AgbSaveHeader;
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u32 ValidateAgbSaveHeader(AgbSaveHeader* header);
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