Atari 7800

AtariAge: 7800 Emulation
Resources : and : links : to : the : most : popular : emulators : and : utilities.
http://www.atariage.com/7800/emulation/index.html?SystemID=7800

EMU7800
An : open : source : emulator : for : Windows : written : in : C#.
http://sourceforge.net/projects/emu7800/

v7800
A : freeware : emulator : for : DOS.
http://atarihq.com/danb/a7800.shtml#emulation