Config Files

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Various TerraOnion products support the use of config files to either override or expand the capabilities of these devices on a per game basis. They are simple text documents with instructions that are saved with the file type ".cfg" and dropped along side either cartridge of CD images. This page will document the various options.


MegaSD Config

MegaSD config files are primarily used to change teh attributes of cartridge games. Here is a list of attributes and values:

MEGAKEY

Megakey allows you to force an alternate region on a rom. Useful for playing "world" roms in alternate languages. (Such as the Bare Knuckle series)

  • 0 = Off - overrides default in MegaSD settings
  • 80 = JP
  • 81 = JP/PAL
  • 82 = US
  • 83 = EU

Mapper

Mappers are two digit codes that attempt to load a rom with an instruction set other than the anticipated one. There are dozens of these so we will list only ones that have specific uses.

  • 2E = Use this mapper if you want to load a Sega CD bios as a rom image

MODE - Saturn Config

test

MODE - Dreamcast Config