Changes

Some cores have a wrong width resolution, doubt if this is a bug and even less a problem, but if you want some pixel perfect (to see better horizontal scrolling for example) here you must disable Correct aspect ratio in these cores: * md.correct_aspect 0* nes.correct_aspect 0* pce_fast.correct_aspect 0* snes.correct_aspect 0* snes_faust.correct_aspect 0* ss.correct_aspect 0 Here is also a little list of the cores with without an correct_aspect setting but its width is still wrong, so changing it's xscale values which would will give pixel perfect.Also some of the These cores (except PC-FX) also have a boolean setting called h_overscan which if it's enabled (1) some overscan (also called which is most known as black bars) on the both sides will appear, but width size is still inaccurate.

* PCE / PCE_Fast / PC-FX: 0.888888888888888