User:Zzo38/Submappers

This file lists my own suggestions for submappers. Please feel free to edit it if you have something to add. People who then make officially submapper numbers of NES 2.0 can decide to use some of all of these suggestion if you want to.

I will add DotFami mapper codes (for .cart files and ines.map file) when I am able to.

Note: In all cases with mapper numbers 0 to 255 (even numbers not yet assigned), submapper 0 means to determine using hashes/checksum or whatever as old iNES files are treated. This is for compatibility purposes. Mapper numbers 256 and above do not use submapper 0 in this way.

Some files use incorrect mapper numbers, or other incorrect things in the header. If iNES 2.0 headers are used, assume the header is correct.

Mapper 1

• 1: Normal
• 2: SOROM
• 3: SUROM
• 4: SXROM

Mapper 2, 3, 7, 34

• 1: No bus conflicts
• 2: With bus conflicts

Mapper 4

• 1: MMC3
• 2: MMC6

Mapper 21

• 1: VRC4a
• 2: VRC4c

Mapper 23

• 1: VRC4e
• 2: VRC4f

Mapper 25

• 1: VRC4b
• 2: VRC4d
• 3: VRC2b

Mapper 32, 71

• 1: Controllable mirroring
• 2: Hardwired mirroring (use mirroring flag in header to indicate mirroring to use)

Mapper 38, 79

• 1: Oversize support as FCEUX
• 2: Oversize support as Nestopia

N.B.: This is controversial, and anyways this description is not very good. It may be deleted later.

Mapper 78

• 1: Uchuusen
• 2: Holy Diver

Mapper 85

• 1: VRC7a
• 2: VRC7b