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.
Zork II: The Wizard of Frobozz is the second installment in the Zork trilogy, a series of interactive fiction text adventure games. It was developed and published by Infocom in 1981. The game is a direct sequel to Zork I: The Great Underground Empire and continues the player's exploration of the vast underground world filled with puzzles, treasures, and humor.
The game was written by the team at Infocom, which included Marc Blank and Dave Lebling, though the specific authorship of Zork II is often attributed to the collective effort of the Infocom team. It was initially released for the TRS-80 and later ported to other platforms, including the Commodore PET, Apple II, and IBM PC. Like other Infocom games, Zork II features a text-based interface where players type commands to interact with the environment, solve puzzles, and progress through the story.
Zork II is set in the same universe as its predecessor, with the player continuing their quest to collect treasures and navigate the underground empire. The game introduces new challenges, including encounters with the titular Wizard of Frobozz, who adds a layer of complexity to the puzzles. The game is known for its intricate design, witty writing, and the use of the Z-machine, a virtual machine that allowed Infocom to create cross-platform games efficiently. Zork II remains a classic example of early interactive fiction and a significant milestone in the history of video games.