DB48X: HP48-like RPL implementation for DM42

[spiff72]

(10-08-2023 11:30 AM)c3d Wrote:  I'm finalizing 0.4.6, where the focus is on the UI, with addition of cut/copy/paste, command history, search and replace. I also reorganized the menus and keyboard layout, see attachment.

One thing that might trigger a reaction is the appearance of an = sign as a primary function. This key has three functions depending on context:

- When not editing, it's EVAL
- When editing programs, it's a space
- When inside an equation, it's an = sign. So you can type equations like `X^2+Y^2=1` easily.

@spiff72 and I have been discussing various options for keyboard layout, notably the secondary functions in alpha mode. The layout below is what I currently have in the simulator. @spiff72 is testing other choices. Your input on these is welcome.

To add to c3d's comments above - one important point to note is that these changes are unfortunately going to diverge from the layout that was previously created (and some of you may have purchased overlays for). If you don't want to have to change overlays, you may want to hold off on updating.

I apologize for this, but there was a lot of interest in these overlays, and I put a disclaimer in my thread warning that things may change, since this project was still in very early development.

Once c3d and I have settled on layouts (with likely input from all of you), I will have the new versions available. I have one current order right now that I am waiting on production/shipping for just the reasons above (you know who you are!)...