NES 64: Commodore 64 KERNAL and BASIC port

A few years ago, I got the crazy idea to try porting the Commodore 64 KERNAL and BASIC ROMs to the NES, since their CPUs are mostly the same. But I gave up when things got complicated with the PPU. Then a couple weeks ago, I saw that someone ported it to the Atari 1200XL, so I decided I'd give it another shot. This time, I was able to make a (mostly) working system.

Quite impressive.