cartreader/sd

####Copy these files to the root of your SD card.

####gba.txt
This file stores the GBA database which is needed because the save type and rom size are not stored inside the rom.

Example:
A22J,08,3
game id, size in MByte, savetype

Savetypes:
0 = Unknown or no save
1 = 4k Eeprom
2 = 64K Eeprom
3 = 256K Sram
4 = 512K Flash
5 = 1024K Flash
6 = 512K Sram

####n64.txt
This file stores the N64 database which is needed because the save type and rom size are not stored inside the rom.
The CRC32 checksum is used to verify a good dump.

Example:
002c3b2a,NO7P,32,0
CRC32, game id, size in MByte, savetype

Savetypes:
0 = no save chip
1 = SRAM
4 = Flashram
5 = 4K Eeprom
6 = 16K Eeprom

####snes.txt
This file is needed for odd sized SNES games like Final Fantasy (JAP), Super Metroid(US/JAP) or Tales of Symphonia. Without this file you will get overdumps and the checksum calculation will fail. There are still a lot games missing from this list.

Example:
A172,24,48
checksum, size in Mbit, number of banks (lorom needs twice as many banks as hirom for the same rom size)

####hirom64.map
This is a Nintendo Power mapping file that changes the mapping to a single 4MB HiRom game with 64Kbit/8KByte save. The first byte is used to specify the mapping.

Bit0-1 SRAM Size (0=2K, 1=8K, 2=32K, 3=None) ;ie. 2K SHL (N2)
Bit2-4 ROM Size (0=512K, 2=1.5M, 5=3M, 7=4M) ;ie. 512K(N+1)
Bit5 Zero (maybe MSB of ROM Size for carts with three FLASH chips) (set for HIROM:ALL)
Bit6-7 Mode (0=Lorom, 1=Hirom, 2=Forced HIROM:MENU, 3=Forced HIROM:ALL)
More info: http://problemkaputt.de/fullsnes.htm#snescartnintendopowerflashcard

Example:
0x5d = 0b 01 0 111 01
01 -> Hirom
0
111 -> 4M
01 -> 8K

####lorom256.map
This is a Nintendo Power mapping file that changes the mapping to a single 4MB LoRom game with 256Kbit/32 KByte save.

Example:
0x1e = 0b 00 0 111 10
00 -> Lorom
0
0b111 -> 7 -> 4M
0x10 -> 2 ->32k