HP 41 Diagnostic & Service ROM

[Don Williams]

Got the VASM. Got V41, which by the way doesn't seem to produce a trace.log file under win 10. Resurrected an old XP laptop and installed V41 on that.

I am currently perusing trace log files. Simple stuff like only turning the calc on and off. I recognize the memory checks on cold start but anything more complicated starts turning my brain into jelly, but I expected that.

This is going to go slow.