Nonpareil status

[brouhaha]

I can't say with absolute certainty that Greg's analysis of the problem is correct, but his solution seems to good results in Nonpareil. It's possible that this is compensating for some other flaw, such as an incorrect ROM listing.

I'll add to my long list of research projects:

• dumping the 55 ROMs, to compare with the patent listing
• capturing logic analyzer traces of the 55 doing RCL/STO operations on regular and "dot" registers, Sigma+, and program step entry.