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MAME Settings for GGG Roto-X Functionality
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nick3092:
I recently purchased and wired up a pair of Happ mechanical rotaries and wired them up to my GP-Wiz 40.  But I'm having a heck of a time getting MAME to play nicely with the Roto-X functionality.  I'm hoping someone else out here has found the magic combination of settings in MAME.

I find that with the default settings in MAME, it often does not respond to each "click" of the joystick.  Sometimes the character (been using Ikari to test) will rotate, sometimes not.  I've been playing around with the analog settings, and I can get it close, but it still skips a rotation every now and then.  The default settings in MAME are:

Digital Speed: 1
Positional Reverse: On
Positional Sensitivity: 15

The lowest these settings go is 1.  And that makes the character completely unresponsive.  Increasing them helps, but not completely, and will also cause multiple rotations per click.

Any help would greatly be appreciated.
RandyT:
According to Derrick,


--- Quote ---...Then in MAME you set analog speed to 0 and sensitivity to 100. This will make the game move 1 position per press.

--- End quote ---
nick3092:
Derrick's terminology was a little off.  It's Digital Speed, not Analog.  But that did the trick.  Thanks Randy!!
bkenobi:
I know a lot of people just use the current version of MAME and tweak the settings so things work pretty well, but I've never been particularly happy about missed rotations.  As such, I have been happily using MAME Analog+.  I know it hasn't been updated in years, but none of the rotary games have been redumped in forever either.
RandyT:

--- Quote from: bkenobi on April 19, 2011, 11:21:46 pm ---I know a lot of people just use the current version of MAME and tweak the settings so things work pretty well, but I've never been particularly happy about missed rotations.  As such, I have been happily using MAME Analog+.  I know it hasn't been updated in years, but none of the rotary games have been redumped in forever either.

--- End quote ---

If you set the settings as indicated above, it doesn't miss.  The standard MAME build has been "fixed" for rotary controls, and those settings are what activates the "1-click-1-move mode" Derrick (I believe) built into it.  So no need to run the special build unless you want to.
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