|Re: Private end code for 41 CX|
Message #5 Posted by Raymond Hellstern (Germany) on 13 Oct 2002, 7:07 p.m.,
in response to message #4 by Paul
there are several options. The easiest
is shown near the bottom of this text.
1. If you have either
- a CCD ROM , PPC ROM or similar,
- a HEPAX module
- access to some kind of RAM box
you could assign the byte grabber code or
manipulate the bit in the END directly.
2. If you have an HP-71B, and
- your files on an HP-IL drive
you could read the file(s) into RAM,
then manipulate them with the POKE function of the HP-71,
then write them back to the medium.
But the easiest way is as follows:
Since you unprotected your HP-41 programs,
just write them to disk/tape with WRTPV,
then delete them on the HP-41, and read them back.
I'd suggest the following method:
Use WRTA (WriteAll) with a suitable name in ALPHA.
I'd do this twice, with different names in ALPHA,
so you have a backup of your backup.
Then clear your HP-41, and make the byte grabber
Save this via WRTK, having a suitable name in ALPHA,
then restore your calc with READA,
again with the appriorate name in ALPHA.
After that, you can use READK to restore your byte grabber.
But note that this overwrites your other
exisiting key assignments.
However, now you can grab bytes at will,
but be careful, the byte grabber is a nice
tool to wipe out memory if used carelessly;-)
BTW: You shouldn't use so many threads for the same subject;-)