My first newbie WP 34S question

[Bit]

(01-28-2014 05:31 AM)Paul Dale Wrote:  That bit of code was one of the very last added. I'd trust the comment, although I don't remember exactly why. I do remember there being a problem with the wrong register being displayed at times.

Then I won't try to figure this out as that check causes no harm and it wouldn't be easy (for me) to prove that nothing breaks if it's removed.

The command line check is definitely needed for the Y register display to work correctly. But it isn't sufficient: If the X register was erased and the stack lift disabled and you start typing a number, the current Y register code will display 0 (the erased X register) instead of the Y register. [1] [ENTER] [<-] [1] will reproduce the problem.

This one is trivially easy to fix but some other problems (e.g. last digit cut off without correct rounding) are trickier. I don't yet have a means to load a new firmware into my WP 34S so I could only test my patch using the simulator. I'm planning to publish it once it's been thoroughly tested on real hardware so as not to waste anyone's time with something that's potentially broken. (But if someone would like to play with it now, just let me know.)