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Directory /pub/cbm/documents/projects/ieee-488/

IEEE-488 a.k.a. HP-IB a.k.a. GP-IB is a parallel bus used in the Commodore PET line of computers. For its home computers, Commodore developed a very slow serial version of the bus.

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Commodore's IEEE-488 cartridge for the Commodore 64. Reverse-engineered by Wolfgang Günther <woll@Informatik.Uni-Bremen.DE>.
Commodore's VIC-1112 IEEE-488 cartridge for the VIC-20. Reverse-engineered by Wolfgang Günther <woll@Informatik.Uni-Bremen.DE>.

An article about the IEEE 488 standard and its use in Commodore's computers.
André Fachat's IEEE 488 interface for the PC's printer port. The driver is for Linux. Developed from
IEEE488 to CBM serial IEC bus converter, designed by André Fachat.
IEEE-488 interface for PC clones (to interface old PET age drives and other stuff). Designed by Ruud Baltissen.
This is the description of the IEEE488 interface published in the German 64'er magazin a long time ago. It is basically modelled after the 2031 schematics, the IEEE488 sister drive to the VC1541.
Code to patch the VC1541 ROM is provided. The original 2031 ROM is different in both ROM chips, but the patch manages to get the changes into one ROM chip only.

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