[34S] Proposal for Entry RPN mode with dynamic stack

[Didier Lachieze]

(02-19-2015 01:51 PM)Bit Wrote:  Ultimately I think creating a well thought-out specification that provides a consistently good user experience and covers every detail might be more work than the programming.

Yes, as for any piece of software

I'm not familiar with Entry RPN on a limited display machine, I just have experience of the RPL calculators so there is one thing that is not clear for me with Entry RPN applied to the WP 34s: is the command line displayed on the screen different from the stack X register?

For example, if I have 4 in the Y register and 3 in the X register as a result of a previous calculation and I press [2], what happen on the display if I have set YDON? Is 2 just replacing 3 which stay hidden in the X register until I press ENTER or an operator key while 4 is still displayed on the top line?