Re: Breaking Private on HP71 Message #6 Posted by Forrest on 7 Nov 2004, 3:03 p.m., in response to message #5 by J-F Garnier
Dear J-F,
Thank you for the help. I guess the question now is which is easier to obtain - a Forth Assembler Rom or the JPCROM. I did a lot of programming for the HP41 back in its day, creating survey programs that did things that the module didn't, like remembering coordinate points by number. Later that became an interest with the HP71 which had a unique survey module. My interest in the HP71 has been re-kindled and I have a couple of survey ROMS (not HP) that are well out of date, but my interest is in what problems they solved and how they solved them.
Your suggestion also seems to be a viable solution. I assume that the JPCROM is as hard to obtain at the Forth ROM. I am sure that I used to have information on what nibbles made the program "Private" but I will have to look through my owners and reference manuals.
It is one of those things where I used to have all the PPC issues, and everything associated with the HP41 and HP71 but alas it disappeared a number of years ago. Oh, do I wish I could find it someplace in my storage.
Thanks,
It is greatly appreciated.
|