LastXY Register for WP34S

[PANAMATIK]

(12-01-2014 09:29 PM)Paul Dale Wrote:  Flash space could probably be found. The problem is that we use every last byte of the volatile RAM during some operations (statistics and matrix functions). There simply is nowhere to store UNDO memory.

I hope this is not too complicated:

UNDO (or the less RAM consuming RCL LastXY) should not become a programmable function and must be used directly after having performed the wrong dyadic function. Perhaps most (or all?) of them don't use all RAM. However if there is a dyadic function which uses all RAM, a flag will be set and UNDO is not available after this complicated function.

As I understood there must be battery backuped memory availabe for that purpose.

Bernhard