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.
Circle is a game written by Glen Fisher and published by CodeWorks - Cursor, a company known for developing software for the Commodore PET. The game was released during the late 1970s or early 1980s, a period when the Commodore PET was a popular personal computer for both educational and home use. CodeWorks - Cursor was one of the many small software houses that emerged during this era, creating games and utilities for early microcomputers.
The gameplay and specific mechanics of Circle are not well-documented in modern sources, but it is known to be a text-based or simple graphical game, typical of the limitations of the Commodore PET's hardware. The PET, with its monochrome display and limited graphical capabilities, often relied on text-based interfaces or simple character graphics for games. Given the era and platform, Circle likely involved puzzle-solving or strategy elements, common in early computer games.
Glen Fisher's work with CodeWorks - Cursor contributed to the growing library of software for the Commodore PET, which helped establish the platform as a viable option for gaming and productivity. While Circle is not as widely remembered as some other titles from the era, it remains a part of the early history of personal computing and the Commodore PET's legacy.