[Coco] MAME FDC Issue that can cause corruption

[Glen Hewlett]

Hey Guys,

I just wanted to say great work all around.
I’m glad that Ciaran was able to make a fix for MAME, my favourite emulator that emulates my favourite computer.

Cheers,
Glen
> On Aug 2, 2017, at 7:57 PM, David Ladd <davidwladd at gmail.com> wrote:
> 
> 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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> | Do you have your CoCo 3 yet?                                          |
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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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