Snake game

[brentward]

I've got a basic version of Snake ready. It uses a single SNES controller or keyboard (WASD). I changed the way it is hooked up to VIA port A, the pins are noted in controller.s. The keyboard controls seem to work without the SNES interface hooked up at all so anyone should be able to play it, although space to pause is not currently working.

I haven't looked into how Snake is typically written so there might be a much more efficient way to keep track of the snake. I'd be open to suggestions.
https://github.com/brentward/snake