IBM LPFK reverse engineering
ard at p850ug1.demon.co.uk
Wed Aug 20 15:11:44 CDT 2008
> A very similar puzzle, except played on a 3x3 grid and the neighborhood
> around a move wrapped around the borders, appeared in a Processor
> Technology publication back in 1977, although its origin is even earlier
> (see comment below):
> It used the numeric keyboard as the 3x3 pad to control game play. I
> reconstructed the source code from that publication:
> The comments for it say:
> ; PROGRAM ORIGINALLY SUBMITTED TO THE
> ; HEWLETT-PACKARD SOFTWARE LIBRARY IN BASIC
When I was reading you artlcle, I thought of an HP calculator program
that seemsed to be very similar...
> ; SUBSEQUENTLY PUBLISHED BY PEOPLE'S COMPUTER
> ; COMPANY IN SEPT 74 AS "TEASER"
A later version of this program appears in the HP67/97 Games Pac 1. it
runs fine on the HP41 with a card reader, and IIRC is available from the
HP museum web site.
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