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brouhaha · (This post was last modified: 10-13-2023 08:19 AM by brouhaha.)

At the recent HHC 2023 conference, Eric Rechlin mentioned that some of the HP-41 VASM (microcode) listings that were once distributed by PPC have not been turned up. He specifically mentioned the 82104A card reader ROM.

The Personal Programmers of Melbourne Newsletter of Sept.. 1985 mentions that the card reader listing was in their reference holdings, along with that of the HP-IL Monitor ROM (which I believe to be the "PIL Diagnostic ROM", which was provided to HP-IL component kit beta testers, and was the basis for the later 00041-15043 HP-IL Development ROM). I assume that the Melbourne club acquired these VASM listings from PPC, but I have not attempted to track down any mentions of them in PPCJ.

If anyone happens to have either of these VASM listings, or has any contact with people who were in the Melbourne, it would be really good to track down copies of these.