Further, cycle counts were added for accurate timing and frame rates.
Especially the shift/rotate instructions and the arithmetics were rewritten and now include an emulation of the automatic hardware multiply/divide option. The emulation code was extended to support some additional instructions and auxilary hardware. This implementation by Norbert Landsteiner, 2012–2016.īased on emulation code by Barry Silverman, Brian Silverman, and Vadim Gerasimov. – Spacewar! is in the public domain, but this credit paragraph must accompany all distributed versions of the program. It was first realized on the PDP-1 in 1962 by Stephen Russell, Peter Samson, Dan Edwards, and Martin Graetz, together with Alan Kotok, Steve Piner, and Robert A Saunders. Spacewar! was conceived in 1961 by Martin Graetz, Stephen Russell, and Wayne Wiitanen. If available, use gamepads or joysticks (currently Chrome and Firefox only, see instructions-memo below) for authentic gameplay - the game was originally played using custom control boxes. This is a virtual DEC PDP-1 emulated in HTML5/JavaScript running the original code of 'Spacewar!', the earliest known digital video game.
