Hide soft menus?

[Software49g]

Hello,

here is a 50g where the soft menus are hidden and the free space is used for the stack.

The menus are active, so pressing the corresponding soft menu key will execute it, they are simply not shown.

Additionally errors can be shown as in the HP 48 using the status line for showing error messages.

Both features are controlled through flags, so you can choose whether you want to use it or not.

The code is already quite stable, some minor quirks/bugs needs to be sorted out.

Enjoy,
Andreas
http://www.software49g.gmxhome.de