A low/high shift stick like in spy hunter 1983 is a single switch. I have that switch assembly. MAME toggles (low <> high) on that input so I'd have to double shift to toggle.
Is there any way (other than rewriting MAME) to replace a toggle input with normal input (press and hold)?
I don't want to build a circuit to send a press / release every time the switch changes at all. Even with that, I'd have to add another button to sync the setting if it was in the opposite state. Double burden.