DGen was originally written by Dave . It was ported to SDL by Joe Groff and Phil K. Hornung . It was resurrected by tamentis in 2008 and is maintained by zamaz since september 2011. The following people have also made contributions to DGen: Andrew Bazan - Got DGen/SDL to run under BeOS. Steve Snake - The author of the best DOS emulator KGen, was also very patient with my stupid questions about the Genesis, thus allowing me to fix little emulation quirks. ;) Amy Lear - Helped add 8-bit sound support. :) Daniel Wislocki - Improved the sound engine to be nicer to higher-end systems. John Stiles - He works on the Mac port of DGen, and what a job he does! He wrote the original raster engine, and also has sped things up enormously. Dylan Griffiths - Rewrote a lot of the string-handling code to make it much less evil-looking. Allen Noe - Added screenshot functionality. Jeff Grady - Fixed compilation problems with gcc snapshots. Cameron Moore - Fixed SDL joystick initialization problems. Daniel Robbins - Helped fix timing problems on very fast machines. Andre Souza - Added OpenGL rendering mode. Edd Barrett - YM2612 debugging support. - VDP bugfixes (half-submitted commands) and enhancements (sprite masking). - Improved joysticks configuration. - Debugger. - VDP planes switching. - VDP 2-cell vertical scrolling mode and other V-scroll improvements. - W.A.S.D. style keybinding documentation. EgelMex - VDP bugfixes. - Code documentation with Doxygen, some refactoring. Andrea Musuruane - Submitted patches for non-executable stack in ASM files and warnings in dgenrc.5. Efry - Added Cyclone 68000 v0.0088. - Added DrZ80 1.0. Arek - Fixed libarchive detection in configure. Giuseppe Gatta - Implemented VGM dumping. - Added Pico support. Rocka84 - Added bindings to switch between save slots. The following people involuntarily contributed to DGen: Charles MacDonald - Author of Genesis plus. http://cgfm2.emuviews.com/ Eke-Eke - Author of Genesis plus GX. http://code.google.com/p/genplus-gx/ Stephane Dallongeville - Author of Gens and CZ80 (used in DGen). http://www.gens.me/ David Korth - Author of Gens/GS. http://segaretro.org/Gens/GS The SpritesMind community - Especially Nemesis for the technical information he published. http://gendev.spritesmind.net/forum/ Maxim Stepin & others - See hqx/AUTHORS. Salvatore Sanfilippo, Pieter Noordhuis, Steve Bennett - See linenoise/linenoise.c. Andrea Mazzoleni - See scale2x/AUTHORS. Mark Incley - Author of dZ80.