Well, crap. Apparently, from the docs over here, http://www.tiffe.de/Robotron/MMS16/, I can't figure out how to send commands to the uPD7220 from the Z80. Oh well... I at least have a MUCH more fleshed out skeleton diff here based on latest SVN: http://pastebin.com/spvg4daq

EDIT: Oh yeah, it'll probably need a big clean-up before it goes in as I did everything in one source file.

Last edited by Alegend45; 01/01/14 02:44 AM.