So. As of right now, I have a kinda-functional ARM and Thumb core, and the former DSemu's GPU has been ported in full to the new plugin structure. And that means ARMwrestler tests all green, which is a good thing.
I've also been testing a few demos gleaned from PDroms, and have in fact had some results; indeed, maybe 30% of the small tech demos I've downloaded so far seem to run. Furthermore, I've finally found that little bug that was causing Torlus's Walk3D guy to be missing half his ribs and a thigh.