16c overlay in TheCalculatorStore

[Valentin Albillo]

(08-11-2023 02:05 AM)calc_freak Wrote:  The genius-level answers have already been posted. [...] The picture on the website used a 12C as a model for the overlay. That's the misleading part, as the only unit with the selectable firmware is on the 15C CE.

Another "genius-level" answer for you: Divasson used that image of a 12C because at the time no physical 15C CE was available to the team involved with it, and for testing and other purposes the HP-15C CE's firmware (with the embedded HP-16C ROM inside) was uploaded to a physical 12C (same CPU), which then could be (and actually was) used as ersatz CE/96, CE/192 and 16C modes, that's why the 12C picture with the 16C overlay on it, it wasn't a mere model for taking the pic but actually fully functional.

So in the end, technically speaking it's quite possible to turn a current 12C into a 15C CE with embedded 16C, as it's actually been done already. "Been there, done that."

V.