41: Clear main memory without wiping extended memory?

[Sylvain Cote]

(02-22-2021 03:26 PM)Dave Britten Wrote:  I just ran into a situation where about 60 registers were "missing" on my 41CX, likely due to some kind of corrupt buffers or memory pointers.
The only way to fix this was, of course, the nuclear option of On-Backspace, which also wipes extended memory.

CLKEYS clear all key assignment.
ALMCAT then R/S to pause catalog then [GOLD] [C] on each alarm to clear them.
Removing all modules with a power cycle should removed all buffers related to these modules.

(02-22-2021 05:44 PM)Craig Bladow Wrote:  Possibly setting SIZE to 0 and then back to the old value given by SIZE?.

If you have no programs, no buffers, SIZE 000, you should get 319 registers in program mode.

(02-22-2021 03:26 PM)Dave Britten Wrote:  Or maybe just fix the memory pointers?

That can be done but you have to seriously know your way around.

(02-22-2021 03:26 PM)Dave Britten Wrote:  Is there any way to wipe main memory without touching extended memory?

Nop! without doing the above pointers manipulation.