Mapping turbo buttons for NES games

[xikes]

Hello.
I’m quite new to the Raspberry world.
Few days ago, I’ve purchased a Raspberry PI for the sole purpose of creating a Retro gaming station.

I’ve installed Retropie and ES. I have basic things up and running. I can play NES games for the most part. And it’s great!

Now I have a question:

How can I map turbo buttons on my controller? (ES initial mapping only asked for A and B. No turbo versions)
Controllers of my original console (some sort of NES/Famicom clone) had A, B buttons and turbo versions for both A and B. (there were buttons above A and B, which acted as turbo versions of the said buttons below)

How can simulate this behavior on Retropie?

[proxycell]

you can specify a “turbo” button, you have to hold it down and then press the button you want “turbo’ed” lol, you then hold down the turbo button itself i think. i will try some of this out later

[xikes]

Thank You for the reply!
Ok. I’ve read that somewhere. And that’s not exactly what I am looking for.

What I was wondering – can I somehow map a button in a way, so it becomes a turbo-enabled version of an other button?

For example:
If I have mapped the button “B” to my controllers button “3”
Now, can I somehow map a turbo version of the same button “B” to my controllers button “4”?

[wadethefade]

I think I’m wondering the same thing:

Turbo Button Toggle?

[xikes]

Well. Almost.
In my case, I’m looking for an option, where the turbo-mode is active only while the button is held-down.

Press the controller button “3” == NES button “B” pressed
Press and hold controller button “4” == NES button “B” is repeatedly pressed in turbo mode
Release controller button “4” == NES button “B” turbo mode stops.

[xikes]

I have an idea.
Basically, I’m gonna try to make a python script, that runs in background and does all the button remapping/turbo modulation that I need.

Will update on progress.

[plastygrove]

Hi all – I put together a Mod to allow for Turbo A and Turbo B buttons for the NES. Instructions on how to install it are available on the link below. It basically maps Turbo A and Turbo B to X and Y on the RetroArch controller.

Here is the link: https://github.com/plastygrove/libretro-fceumm

[Author]

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