Crossfire is a maze chase game. The object is to travel along every line in the frame in the shortest time while a chaser follows you; your only defence is to make a gap in the trail behind you, by pressing any key other than the direction keys (or the fire button). Each completed frame scores points plus a time bonus, and the next frame comes with “WELL DONE BUT NOW THINGS GET HARDER!!”. The menu offers I for instructions, S for the score table and P to play, and J selects a joystick in the player one socket.
The title screen reads “CROSSFIRE.. © Jeff Naylor 1983.”, and the loader starts with REM Xfire ©Jeff Naylor 1983. Timex Computer Corporation released it for the TS2068 in 1983.
Program Analysis
Structure
cross: BASIC loader that auto-runs at line 10. It draws the title screen, prints “LOADING CODE.. Please wait.”, loads the code and starts it withPRINT USR 30503.CROSSFIRE: 4,420 bytes of machine code at 27648.
Notable Techniques
- Line 5 of the loader is
NEW. The tape auto-runs at line 10, so the loader works normally, but a plainRUNwipes the program.
Image Gallery
Note: Type-in program listings on this website use ZMAKEBAS notation for graphics characters.