PET BASIC Version 2.2 Source Code Listing for Commodore 10/16/64 Posted on January 18, 2020 by Martin Sørensen Assembly source code listing for PET BASIC Version 2.2 for Commodore 10/16/64. Thanks to Ove Mejlgaard for the document. Some errors are seen from page 82, however these are present on the source printout so this was not a scanning error.