DGen/SDL is an emulator for Sega Genesis/Mega Drive systems. The latest version supports save states, interlace mode, Game Genie, Linux joystick support, compressed ROM images, and other nice features.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
New screen renderer is capable of raster effects, fixed a huge bug in the horizontal interrupt handling, added pause mode, and did some more small refining.