Table-based version

Directory /pub/cbm/firmware/computers/pet/d/

Here you will find firmware and technical data of Commodore's professional disk drives, equipped with the IEEE-488 interface, and of Commodore's professional line of computers, the PET.
Most of the disk drive information was supplied by William M. Levak <[email protected]>.

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[Parent directory]

6545-english.txt

6545-german.txt

Description of the MOS 6545 CRTC (Cathode Ray Tube Controller). The description in petio.txt is inaccurate.

PET8032rom.doc

PET 8032 ROM labels.

data-4

labels-io

labels-ram-4

mkdis4

Files that can be used to produce a disassembly from the BASIC 4 ROMs.

petdis

A disassembly of the BASIC 4 ROMs.

petio.txt

Description of the I/O circuitry and the PET firmware. See also the 6545 description.

petram.txt

PET memory map

rom-1.hdr

Control file for recomment, used to generate rom-1.html.

rom-1.html

A disassembly of the PET 2001 ROM set.

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