HP82143 Processor details

[blackjetrock]

I've built am M3780 dumper PCB using a RP Pico and the circuit from Sean Riddle's webpage. I've ported the code and finally got it working. i bought a Boris chess machine as a control and dumped that IC first and got a dump that was similar to Sean's but not identical at all. As a first test I dumped the HP82143 processor ROm as well. It wasn't blank so I may have a dump. The data is attached in the interests of preservation. The end of the dump repeats the same data pattern, this may be a dumper problem or it may be that the data wraps after the end of the ROM, I'm not sure.

The dump is a straight text capture from the dumper tool.

Andrew