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. This list was generated by a simple script and might contain many errors.

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

PCE_CRC_LIST.txt

Placing this file into the root of the SD card will enable verify and automatic game name identifier.

hirom64.map

This is a Nintendo Power SF Memory 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 SF Memory 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

mbc5.map

This is a Nintendo Power GB Memory mapping file that changes the mapping to a single 1MB MBC5 game with 32 KByte save.

GB Mapping Info (by skaman)
Entries start at 0x0 divided into 3 Byte segments

For example, let's look at the start of the mapping for a multi-game cart:
A8 00 00 71 04 00 48 94 04 separates into
A8 00 00 MENU
71 04 00 GAME 1
48 94 04 GAME 2

Byte 00 of each entry contains the MBC Type, ROM Size, and SRAM Size (start).
SRAM Size is 3 bits across Byte 00 and Byte 01.
MBC SZE SRAM
A8 = 101 010 00 0 MBC5, size 2 = 128KB
71 = 011 100 01 0 MBC3, size 4 = 512KB, SRAM 8KB
48 = 010 010 00 1 MBC2, size 2 = 128KB, SRAM MBC2

Byte 00: 1st 3 Bits = MBC Type
000 = MBC0
001 = MBC1
010 = MBC2
011 = MBC3
101 = MBC5

Byte 00: 2nd 3 Bits = ROM Size (minimum size is 128KB due to block size)
010 = Size 2 - 128KB
011 = Size 3 - 256KB
100 = Size 4 - 512KB
101 = Size 5 - 1MB

Byte 00: Last 2 Bits (bit1..bit0) + Byte 01: 1st Bit (bit7) = SRAM Size
00 0 = NONE
00 1 = SRAM MBC2
01 0 = SRAM 8KB
01 1 = SRAM 32KB

Byte 01 contains the SRAM Size (end) and ROM Block in the Flash.
ROM Blocks are 128KB (8 total)
Byte 01: Last 7 Bits (bit6..bit0) = ROM Block
00 = ROM Block 0 start offset 0KB
04 = ROM Block 1 start offset 128KB
08 = ROM Block 2 start offset 256KB
0C = ROM Block 3 start offset 384KB
10 = ROM Block 4 start offset 512KB
14 = ROM Block 5 start offset 640KB
18 = ROM Block 6 start offset 768KB
1C = ROM Block 7 start offset 896KB

Byte 02 contains the RAM Block in the SRAM.
RAM Blocks are 8KB (16 total)
Byte 02: RAM Block:
00 = RAM Block 0 start offset 0KB
04 = RAM Block 1 start offset 8KB
08 = RAM Block 2 start offset 16KB
0C = RAM Block 3 start offset 24KB
and so on until RAM Block 15.

Going back to our example cart:
A8 00 00 MENU: MBC5, size 2 = 128KB, ROM Block 0, RAM Block 0 (Ignored since SRAM is 000)
71 04 00 GAME 1: MBC3, size 4 = 512KB, SRAM 8KB, ROM Block 1, RAM Block 0
48 94 04 GAME 2: MBC2, size 2 = 128KB, SRAM MBC2, ROM Block 5, RAM Block 1