Rainbow is an 8-bit/5200 Atari Emulator and is a major rewrite of the old version 1.x. It features better emulation, real joystick support and full screen display. Diagnostic tools are also included.
Note: It's no longer a commercial emulator like the one discontinued in 1997.
Download it from the Windows/DOS Atari 5200
section or at http://www.chrislam.co.uk/rainbow-at...t-emulator.htm