HP 15c CE - New firmware update officially available!

[AnnoyedOne]

(08-02-2024 01:59 AM)Steve Simpkin Wrote:  ...the later HP-12C Platinum's use the GPLB31A processor which is based on a 6502 uP core.

Yes, I know that earlier (not "later") HP-12C Platinum's used a 6502 core CPU. From what I've read the code was new (not emulated HP NUT) and thus some calculations gave different result from the original, and later, HP-12C's. The HP-12C is a nice model IMO but I have no use for one.

And that's what I like about the HP-15C CE and my HP-15C emulators. All (to my knowledge) emulate the original HP NUT code. Some even have the same bugs (e.g. the original HP-15C CHS stack lift issue) and restrictions. IMHO HP stuff before the 1990's was the best one could buy (and you paid for it). Not now.

No offense to SwissMicros (and others) but I prefer the original and the best. That's the "engineer" in me.

As I understand it the HP NUT code has a few "bug" fixes -- in the HP-15C CE anyway. I've never looked at the NUT instruction set. Nor do I plan to.

A1