fpgammix runs nearly all of the user-level integer subset of MMIX. Still lacking is handling of stack under- and overflow. Note, this is _not_ a slick, well tested, high performance implementation like YARI. I wanted to throw together a quick implementation first so I could understand what it would take to make a faster pipelined implementation. I had some fun writing a demo using audio, bitmapped graphics, PS/2 keyboard and mouse.