Hello all,
New material regarding the JPC ROM for the HP-71B:
First, I finally finished to collect the JPC ROM assembly source files. The original files are lost (AFAIK), and I had to rebuild them from various sources (Swap disks, paper issues of the JPC journal, personal archives, private communications). This release is based on the regular version D and includes the changes and fixes made by Rodger Rosenbaum in version X.
Secondly, I recently got a ROM image (merci Claude!) of the little-known official version E, which was released on end of 1989 by PPC-Paris shortly before the club experienced serious problems and collapsed.
More details on my JPC ROM page.
JPC ROM version F project:
This now allow us to think about a new version that would merge all JPC ROM improvements into a single and definitive edition.
So I would like to make a call for contributions: if you ever made some improvements, or are aware of bug fixes still to be done in the JPC ROM, and you want to participate to this project, please contact me. At least two people already expressed interest in working on a new JPC ROM version. Any suggestions are welcome, although I would prefer real (and debugged) code contribution!
I don't plan to write new HP-71B assembly code, so I will act more as an editor to collect the contributions and share them to the HP-71B user community.
Best regards.
Jean-Francois
Edited: 4 July 2006, 7:26 a.m.