Original:

XenoGC is a modchip for the Nintendo Gamecube.

The idea is a micro sitting on the communication bus between the cpu and the dvd driver board injecting code to patch the dvd controller to make it able to read unsigned code.

The original sofware is been released as opensource here:

http://www.gc-forever.com/forums/viewtopic.php?t=439

This version run on an ATmega8L, not a lot of ports are been made, mostly because you don't really need them, the Atmega8L is cheap and still in production. Someone made a Raspberry Pi port of it.

emuboy:

Atmega328/Arduino port (ATTENTION! THIS NEED TO BE FLASHED VIA ISP ON THE ARDUINO).