Is there jsnes support button for Turbo A or Turbo B ?

[leowilbur]

Some game required the Turbo A and Turbo B button, I can not found how to trigger that button, Does the jsnes support that button?

[leowilbur]

A turbo controller such as the NES Max or NES Advantage is read just like a standard controller, but the user can switch some of its buttons to be toggled by an oscillator. Such an oscillator turns the button on and off at 15 to 30 Hz, producing rapid fire in games. I think I found the answer :D