Poking Technology's video: Hjalfi writes an assembler again

In which yr hmbl svt _re_writes an assembler for a 40-year old operating system, in a language he designed himself, using a compiler he designed himself, which may or may not contain bugs. So this video ended up being seven hours, which turns out to be about the same length as the original where I write the C version (http://youtube.com/watch?v=Y7crnbHhnZY) I did honestly think this would be shorter. Go figure. I also misremembered; the original was actually compiled into Z80 code with sdcc, not into 8080 code with the ACK (https://github.com/davidgiven/ack); apparently sdcc produced a 5.5kB binary, while the Z80 Cowgol build produced a 8.3kB binary. That really surprises me, and I should go and look into why. Cowgol can be found here: http://cowlark.com/cowgol Cpmish can be found here: http://cowlark.com/cpmish Bugfixed version of the assembler can be found here: Production notes: edited with Blender --- 2.82 has fixed most of the video editor bugs! Except rendering is still single-threaded and chronically slow.