Back in 2009, when I was 16, I read an article somewhere online that stated that Yuji Naka (lead programmer
for Sonic the Hedgehog) had written a Nintendo Entertainment System emulator for the
SEGA Megadrive, running Super Mario Bros. at full speed.
I was impressed by this, yet remained skeptical about it; but I thought, it wouldn't harm to try, right?
So I began developing just that, a NES emulator for the SEGA Megadrive.
And I did it. Thus I proved to myself that it was possible.
And while the fact that the Naka's emulator ran at full speed is most probably just that, a legend, it is perfectly possible to do a NES emulator for the Megadrive, albeit tolerating its slowness.
After all the Megadrive has a 68000 processor running at 7Mhz and 64 kilobytes of RAM...
My emulator was really slow, incomplete and incompatible, but could show the title of Nintendo
Pinball and of a few other games.
It was developed in C by using Stephane Dallongeville's SGDK and used a CPU core I wrote myself in C.
Still, not a bad result for an inexperienced programmer, whom I was in 2009.
Obviously now I would do many things differently...
Unfortunately I have lost the source code to it, but you can download the emulator ROM here.
- nextvolume, <email@example.com>
Last updated: January 27th, 2014