Donald E. Knuth's new 64-bit processor for the new volumes of his landmark series 'The Art of Computer Programming'. MIX has become more than only a book example, so MMIX should too. Description, news.
Assembler and interactive simulator in HTML and JavaScript; runs in web browser. For use if you are in haste to try MIXAL, or must code without installing an emulator.
Uses BFiles for 18 of 20 MIX I/O devices, each MIX I/O instruction spawns a Be thread to do operation while MIX keeps computing. Has MIX Go button, unlike some MIX emulators, coded in C++.
Site for volunteers converting all programs in The Art of Computer Programming (TAOCP), Volumes 1-3, from old processor MIX, to newer MMIX: news, FAQ, mail lists, volunteer list and directions, links.
MIX Development Kit, emulates MIX, MIXAL; with compiler, virtual machine, GUI, Guile interpreter, Emacs mode, Elisp program to run programs in Emacs window.
Brief satiric article, seemingly from 2009 Scientific American; some downloads: True Color MMIX display for X11, MMIXX Distribution, screenshots; links.