Hacking Button mapping

[573master]

Can you change the mutton mappings like for example i want my R trigger to become X because i want to play megaman star force and can't get my R trigger to work im using MSI zero if you guys could help that would be GREAT! thanks guys.

 

[The Catboy]

I think that would actually require physically altering the DS.

Have you tried just slightly lifting the R trigger and blowing really hard into it or using some canned air in it?

 

[FAST6191]

I am not entirely sure why we are in the M3 section for this.

We have a few threads on button remapping, it is quite possible though most of the methods are fairly involved and if it is for one game it is usually better to just fix the DS in the first place (it can be as simple as pulling it apart and cleaning the contacts).

1) You physically rewire it (easy enough to do but does involve actual soldering and fiddling with electronics which many shy away from for some reason)
2) You make a cheat to rewrite the logic in the buffer/register that stores what button has been pressed. http://nocash.emubase.de/gbatek.htm#dskeypad has what goes there.
3) You make the game read a different button- kind of similar logic to 2) above but rather than change the contents you see what reads them and tell it to react to the x button instead of R*. This is the best method and can be done in cheat form most of the time as well. http://crackerscrap.com/docs/sfchacktut.html covers a touchscreen to dpad hack but the logic is very similar. I also like to point people at the guitar grip remap hacks as the logic is quite similar- http://gbatemp.net/threads/how-to-change-buttons-on-guitar-hero-on-tour-hack.275789/ .

*4000130 is the location of the register dealing with R (bit 8 to be more specific) where bit 0 of 4000136 is the location of the X button controls. You may have various things depending upon what you are doing in the game (there might be a different control setup for battle than there is for maps, in computers or any minigames).