Programming issue HP41CX

[jhaig99]

By setting the size at 000 and abbreviating some of the alpha labels I was able to enter all the steps on my program list, but no luck on running the program. I have done all I can to be sure nothing is in memory that should not be there. When empty it shows 319 registers. The program label is V13, but when I try to execute it, it cannot be found. With all the program steps entered, when I then resize for 026 it packs and returns END REG 07

I have two calculators, one a CV and the other a CX.

My catalog 4 (extended memory) on the CV has a lot of commands. i.e. *,/,+, -, ACOS, ADV, ASHF, ASN, etc. I did not put these there so not sure where they come from. They may be used in the program somehow to keep main memory usable. Both calculators did hold the program at some point.

The CX where I entered the program, is showing Cat 4 "Dir Empty"

I'm thinking the values in extended memory may be required for program execution.

I will be attaching a copy of the program I have and instructions that came with the program and a copy of the keyboard overlay as soon as I can get it scanned to a file I can attach to give an idea of what I am up against. I will try to post it tomorrow.

The program overlay I have for the program has 30 labels on it for program entry and to recall calculation values.

When I run Cat 1 it list program labels, then END 2188.

I also have loaded the program i41CX on my iPad. I plan to reload the V13 program lines into it and will be able to print and email all the commands.

I really think this V13 program is very sophisticated and have come to believe the data in the extended memory may be part of the program some how.

Any help or advice is welcome and appreciated.

Regards,
James