Well it's damn close!!!! Wow, that's amazing. Keep going!

@neauoire Thanks! Getting there. Starting to question some of my CPU instruction implementations, but with those tests passing that seems unwise. STH is only used by @draw-1bpp and @draw-2bpp, but not @draw-sprites. Feels like time to brush up on uxntal again and write some simpler test ROMs.

I'll take your test roms if you write some 😀

@neauoire In the end I just had to strip down screen.tal to a subset of what it includes to find that I had an overflowing loop in the Screen/auto implementation and wasn't passing "var" for the devices to the DEO/DEI functions, which was preventing the auto X/Y changes from persisting outside DEVPOKE16. So, no new test ROMs, sadly. 😐

well, next rom you should test is polycat.tal and amiga.tal

I should make a "quest map" that lists all the demos to try in a sequence on simplest to more complex.

@neauoire That sounds like a great idea!