May 26, 2018
RISC computer designed by Donald E. Knuth
From Donald E. Knuth’s MMIX page
MMIX is a RISC computer designed by the author to illustrate machine-level aspects of programming. In the next editions of his books The Art of Computer Programming, MMIX will replace the 1960s-style machine MIX.
More details can be found in his book
MMIXware A RISC Computer for the Third Millennium, by Donald E. Knuth Heidelberg Springer-Verlag, 1999, viii+550pp. ISBN 3-540-66938-8. Lecture Notes in Computer Science, no. 1750.