PR: 38868 Submitted by: Erwin Lansing <erwin@lansing.dk>
Noticed by: bento
mythical MIX computer, defined in: Donald E. Knuth, _The Art of Computer Programming, Vol. 1: Fundamental Algorithms_. Addison-Wesley, 1973 (2nd ed.) Some of us were playing with it at school... so I made a port of it.