guoweisun I managed to find a paper copy of the manual on sale. Thanks for trying, however. I also found digital scans of the MC88200 CMMU manual, which is essential for emulating a system with a MC88100 at it's core. I also found the MC88110's manual as well.
For future reference, in case anyone ever digs down this rabbit hole again, the manual(s) are here, saved by Bitsavers: Index of /components/motorola/88000
