Category Archives: Nonpareil
It occurred to me while studying simulator traces that it might be interesting to investigate a bug in early versions of the 82104A card reader for the HP-41C calculator. The bug was fairly esoteric and easily avoided, as it seemed … Continue reading
As I was studying HP-41CV microcode running in simulation, I finally uncovered what one of the bug fixes in the HFF ROM version does. This has been a mystery for many years, though there’s still one more unexplained change relative … Continue reading
I’m still making progress towards a new release on Nonpareil.Â Sometimes it seems like the more work I do, the more I find that needs to be done.
I just got a refurbished Apple Mac mini, with the 1.83 GHz Intel Core 2 Duo processor. It is mainly intended for use compiling my open source programs such as Nonpareil for Mac OS X. I am extremely surprised at … Continue reading
Several people have inquired about the status of Nonpareil, so it’s time for an update. There are major changes in progress that are mostly “under the hood.” The released versions of Nonpareil install KML, image, and ROM files in a … Continue reading
This is just a minor release to fix build problems.Â Two missing semicolons were added to src/kmly.y because some versions of Bison complained about them.Â The GDK initialization in src/str2png.c was replaced with GObject initialization, so that str2png doesn’t require … Continue reading
I just committed the KML files and graphics for the HP-22 and HP-27, the graphics being based on Maciej Bartosiak’s graphics for other models.Â I have poor graphic art skills, so the 27 artwork could be better.Â But at least … Continue reading
I haven’t written about Nonpareil in over six months. There’s been some progress, but it’s been very slow due to work and school. I’ve been improving the build system (SCons-based), and hacking up a new “Cbutton” widget for the calculator … Continue reading
Thanks to a ROM image and code provided by HrastProgrammer, Nonpareil will soon support its first non-RPN calculator, the TI-57. Since non-RPN calculators (even the HP-01 and HP-10) aren’t really consistent with the name Nonpareil, I’ve decided to put them … Continue reading
In mid-November, Xavier ThÃ©ry contributed a very nice HP-67 image. I’ve just adjusted the KML file and checked both into the Subversion repository. It will be used in the next release.