[sagrath]

You can mix and match this up with anything (best way would be to google). For example for Yabause I'm ujsing this:

Ok, let's clarify:

Follow the exemple of Yabause, I just need to replace some text:

  <platform>Nintendo SNES</platform>
  <categoryID>root_category</categoryID>
  <application>/system/bin/am</application> <-- Keep this with this path
  <args>start --user 0 -n com.retroarch -a android.intent.action.MAIN -c android.intent.category.LAUNCHER -e com.retroarch.FileNameEx "$rom$"</args> 
  <rompath>/my/rom/path/</rompath>
  <romext>smc</romext>