http://www.abov.co.kr/en/index.php?Depth1=3&Depth2=1&Depth3=1&Depth4=1&Item=MC96F8208S

Here’s the mfg page for the MCU. They seem to have something called “VPE” that does code generation for setting ports and such, and does seem to have some definitions of ports so it wouldn’t be all bit-shifty mess. I was able to get it running with Wine on Ubuntu. When I’m home I’ll look at spinning up a windows VM and playing a bit more. Need to get the desk cleared off first, though, as I’ll need to get a flashing setup working.