pNES in PS Vita - Freezes a few seconds in any game

[thiagol-fenix]

In the middle of a game, if you press the square button, the game freezes for about 3 seconds.

I have done some research and I think these conclusions may help:

• The square button is assigned to the JOY_X input by default.

• In the source code of the emulator (last stable version), file uiEmu.cpp, in the function PNESUiEmu::onUpdate() there is the following code:
  

• In the source code of nestopia, file nstcommon.cpp, the function referenced in the previous image is displayed:
  

From what I can understand, I think what's going on is that the JOY_X input is hard-coded to rewind the game backwards and the PS Vita probably doesn't have enough power to do that... and it freezes up.

Well, if you accept suggestions:

• This functionality does not work on this system so it could be removed (I vote for this one).
• Or an option could be added in the menu to map it and activate/deactivate it.

The solution to this is up to you... and by the way, this project is amaizing :D