[Coco] MAME FDC Issue that can cause corruption

[David Ladd]

Ciaran,

I applied your patch to my local sources of MAME and built it.

I loaded disk basic with the same setup in Disk Basic and had no issues.

I then decided to try my OS-9 environment that I had originally found this
issue with before.  I ran my stuff and both drive 0 and drive 1 were being
banged away on for roughly 15 minutes without it crashing.  Where before
this fix OS-9 or NitrOS-9 would crash within seconds.

So thank you Ciaran for finding a workable fix for this.

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| David Ladd a.k.a. PacoOtaktay a.k.a. Drencor                          |
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On Wed, Aug 2, 2017 at 2:09 PM, Ciaran Anscomb <cocomalt at 6809.org.uk> wrote:

> Ron Klein wrote:
> >
> > http://mametesters.org/view.php?id=6640
>
> They've come up with a patch, but that fails in a different way.
>
> Suggest the attached: update motor state on *all* drives, not just
> selected.
>
> (I made an account on there, but I'm just a "viewer", I think).
>
> ..ciaran
>
>
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