Key assignments hardcoded to Retropad

[zach-morris]

It looks like there are 4 retropad buttons hard coded to keyboard inputs in MAME2016 (and MAME2014):
RETROPAD_L2: TAB
RETROPAD_R2: F11
RETROPAD_L3: F2
RETROPAD_R3: F3

There's no way I could find to change this mapping either in retroarch or in a MAME.cfg. This is a problem when mapping buttons for more than one controller / multiplayer games because the same action occurs for both players when any one of these buttons is pressed.

Is there a way around this? Or is there an option that can be added in Retroarch to change the mapping to a JOYPAD input?

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[markwkidd]

Related? libretro/mame2015-libretro#37

[r-type]

I bet we can only do this for player 1
and for the other players
bind RETROPAD_L2/R2/L3/R3 to ITEM_ID_BUTTON9 /10/11/12