|HP-41 PACK and X-Function "PCLPS" [was: P41CX]|
Message #3 Posted by Karl Schneider on 20 May 2006, 1:31 a.m.,
in response to message #2 by Eric Smith
Thanks for the link, which contained an informative and very witty essay!
Please heed Eric's advice.
I wrote the following, until I later realized that you were talking about an emulator/simulator. Nonetheless, it may prove useful to owners of real 41C/CV/CX calc's.
"GTO .." and "CLP" execute the "PACK" command, which essentially defragments program memory. PACK itself might fail to complete, if the contents of program memory are corrupted. The Extended Function "PCLPS" does not execute PACK. It is built into the 41CX, and is available on the X-Functions module for the 41C or 41CV.
Recently, program memory became corrupted on my own fullnut HP-41CX. PACK, CLP, and "GTO .." all failed, and the calc malfunctioned in other ways as well. PCLPS enabled restoration by deleting the corrupted programs prior to my manually executing PACK.
Full story here:
Edited: 22 May 2006, 11:25 p.m.