I recommend you to read up on byuu's work. He's the author of bSNES, an accuracy-oriented emulator for the SNES. This article is a bit old, but it's a good sta

I recommend you to read up on byuu's work. He's the author of bSNES, an accuracy-oriented emulator for the SNES. This article is a bit old, but it's a good start: http://arstechnica.com/gaming/2011/08/accuracy-takes-power-one-mans-3ghz-quest-to-build-a-perfect-snes-emulator/ http://arstechnica.com/gaming/2011/08/accuracy-takes-power-o...