If it has a TMS1100 rev B or G, I can dump the ROM and O output PLA electronically, and the instruction PLA is almost certainly standard, so that would be enough to emulate it. If it's a TMS1100 rev E or TMS1000, I can only dump the lower 7 bits of the ROM. I can ID possible jumps, which gives a lot of the high bits, but we'd have to guess the rest through trial and error, and try to figure out the O output PLA by watching what the code does.
If it's a GI PIC1650A or PIC1655A or NSC COP4, I can dump it electronically.