I am not committing to the Advent of Code 2025 this year. I'm working on too many side projects checksmix, snipren, emomtimer. In fact I don't even have time to write this blog. On the other hand, I used some holiday downtime to work through Day 1 Part 1 in …

Blazing Fast MMIX Emulator

I like learning computer architectures by running code. MIX is good fun, but it’s dated and awkward for writing anything beyond small examples. MMIX, on the other hand, is a complete computer architecture—much closer to machines that were genuinely pleasant to program, like MIPS …