Eric WrightI was able to dump the 256 byte boot ROM tonight.
judging from a quick look, it appears it is talking with the 765 floppy controller ia $FFE8-$FFEF. I will look at the floppy controller board and see if i can figure out how they have it mapped.
http://content.thetechnickel.com/misc/mtu-130/MTU-130-floppy-boot-rom.bin
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