Changing the size of memory or changing the ROM version forces a reset of the PET.
The emulator has an IEEE-488 device at address 8. It can be used load and save (.prg) files.
Some programs don't run on ROM1 and some require more memory than the default 8K.
Zip is a lesser-known game written by Craig Eisler and published by CodeWorks - Cursor, a company known for developing and publishing software for the Commodore PET and other early home computers. The game was released during the late 1970s or early 1980s, a period when CodeWorks - Cursor was active in creating simple, text-based or early graphical games for the Commodore PET platform. Specific details about the gameplay, mechanics, or storyline of Zip are scarce, as it does not appear to have been widely documented or preserved in gaming history archives.
CodeWorks - Cursor was primarily focused on producing educational and entertainment software for the Commodore PET, a popular computer at the time. Their games often featured straightforward designs due to the technical limitations of the hardware, which typically supported text-based interfaces or very basic graphics. While Zip is not as well-known as other titles from the era, it is likely that the game followed a similar design philosophy, offering simple, engaging gameplay tailored to the capabilities of the Commodore PET.
Unfortunately, there is limited information available about Zip specifically, as it does not appear in major retro gaming databases or historical records with significant detail. The game is occasionally mentioned in discussions about CodeWorks - Cursor's catalog, but no screenshots, manuals, or detailed descriptions have surfaced to provide a clearer picture of its content or design. As with many obscure titles from this era, Zip remains a minor footnote in the history of early computer gaming.