Undocumented card reader function?

[brouhaha]

It's very sad that the Card Reader VASM listing, once available from PPC, does not seem to have survived anywhere accessible. One of the Australian clubs listed it as being in their library, but I've never managed to contact anyone associated with the club.

After I reverse-engineered the HP-67/97 CRC (Card Reader Controller), with help from the late Jacques Laporte, I intended to add 82104A support to Nonpareil, but unfortunately never got around to it (as with many of my intended projects).