Maybe someone knows how to bind 2 buttons from the emulator to one button of a physical gamepad. For example - bind simultaneous pressing ( and ) on the left trigger?
RetroArch doesn’t currently support macros in either direction (that is, neither 1 to many nor many to 1).
Currently? Why this function not implemented yet?
“Currently” is the nice way of saying “it hasn’t been done yet in 10+ yrs, so don’t hold your breath for it, but never say never”.
You should be able to do that with AntiMicro https://github.com/AntiMicro/antimicro make sure to leave it running.