I’m trying to do this for a bunch of cores relating to 70s consoles, back when the d-pad didn’t exist. I’ve tried making an override file for “Stella”, with the following:
input_player1_down_axis = "-1"
input_player1_left_axis = "-0"
input_player1_right_axis = "+0"
input_player1_up_axis = "+1"
input_player1_down = "nul"
input_player1_left = "nul"
input_player1_righ = "nul"
input_player1_up = "nul"
But it doesn’t disable the d-pad, as both d-pad and analog move the characters in most games. Here’s my retroarch.cfg.