Suggestions on HP21 restoration

[Ren]

(04-09-2022 05:13 PM)Marcovecchio Wrote:  [...
...]
I know the obvious way is to reproduce HP21 behaviour, which is not too hard. However, the hardware I plan to use will be capable of much more, and the LCD will also be able to display much richer info, so I would like to ask for ideas on what I can improve on the standard HP21 functionality, taking advantage of the powerful hardware.
[...]

Hold it right there Buster!
What doth thou meanest when thy speaketh; "improve on the standard HP21 functionality"?

I call forth the Inquisitors!

B^)