In Hardware

I was wondering if anyone had the schematics(sp?) for a basic NES controller. I think it would be kinda fun to make something into a controller. I don't really want to take my controllers apart, so if someone had the schematics that would be really useful. Thanks.

for nes, you just cut the bottom ic out of the circuit entirely.
B becomes A, and Y becomes B

and yes, it is actually possible to cut the cable on a snes controller and attach a nes plug and have it work.. the colours dont match in the cable though so youll have to figure that bit out.. i did