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.
The excellent 3D Star Trek by M P McDonald and M H Clements for 3000 series 40-column PETs. Does not fully work on the 4000 series, and not at all on the 8000 series.
Keys: D=damage report, I+number=impulse drive, L=long range scan, P+number=launch photon torpedo (steer with shift and normal steering keys), home=steer counter clockwise coarse, down=steer counter clockwise fine, del=steer clockwise coarse, right=steer clockwise fine, maybe other keys?
Battle stations: number keys; space to fire
A version of 3D Star Trek for the original PET 2001 firmware. The battle stations have better graphics than the version for newer ROMs.