Yup. He also wrote a compiler book in the 80s. He once gave me a mini-lecture on old architectures from the 70s and how 'we kids had it easy these days'. It was awesome, even if I didn't catch any of the content until he started talking about x86 :)
That turns out to be one of the better engineered compilers, at least according to David Conroy (author of MicroEmacs, author of the first handful of compilers for Mark Williams, hardware engineer for DecTalk and who should be on this list).
