yeah, Zophar lol, i wonder why that site is still online. Sure has some nice pages, but its way outdated. Anyway, problem for me is,the sourcecode for a fully working emu is a bit much. It has dozends of lines of codes one doesnt understand, unless you know the hardware of the emulated system in and out, up and down. I found a rather plain intro here: http://fms.komkon.org/EMUL8/HOWTO.html But i must admit that this sounds more like hard work than fun Sure, cant beat that feeling, when your emu actually plays something, but i dont know all these details about any consoles or comps hardware that seems to be needed, so screw it. Im not the guy who finds it interesting, to know how many dots an odd or even scanline may system X have in PAL and/or NTSC mode. Maybe i can learn to know some system, when i have nothing to do at work. Is an hour now and then, so maybe some day... Now I'd would be nice to know, what system is the most easies to emulate ? My guess would go on GameBoy here, afaik it has a 6502 CPU, same that was used in the C64 days and i even did some assembly back then. Sure forgot like everything about it in the past 15 years