[Coco] MAME FDC Issue that can cause corruption

[Ron Klein]

Everyone,

Thanks a bunch to David for all his work on this finding, testing and
documenting this FDC issue.

MAME bug report submitted:

http://mametesters.org/view.php?id=6640



On Tue, Aug 1, 2017 at 11:00 AM, David Ladd <davidwladd at gmail.com> wrote:

> Barry,
>
> The only bug report I have filed was in relation to OS-9 L2/NitrOS-9 L2 and
> coco3/coco3h thus far:
> http://mametesters.org/view.php?id=6639
>
> I need to make videos and also show that I can also re-produce this in the
> coco12.cpp branch as well.
>
> I do not know how to use the Dragon part of the emulation so would be
> interested to see if the Dragon uses the same FDC driver base and if so if
> the problem is also re-producible there as well.
>
> +-----------------------------------------------------------------------+
> | David Ladd a.k.a. PacoOtaktay a.k.a. Drencor                          |
> | YouTube: http://www.youtube.com/user/PacoOtaktay                      |
> | YouTube Gaming Live: https://gaming.youtube.com/user/PacoOtaktay/live |
> | Websites: http://dwladd.com     &     http://www.theterrorzone.com    |
> | G+:  https://plus.google.com/113262444659438038657                    |
> | G+:  https://plus.google.com/+DavidLaddPacoOtaktay                    |
> |                                                                       |
> | Do you have your CoCo 3 yet?                                          |
> +-----------------------------------------------------------------------+
>
>
> On Tue, Aug 1, 2017 at 3:30 AM, Barry Nelson <barry.nelson at amobiledevice.
> com
> > wrote:
>
> > I have confirmed this issue on my Macintosh build of MAME as of version
> > 0.186 and later. David, have you filed a bug report?
> >
> > > David Ladd davidwladd at gmail.com  <mailto:coco%40maltedmedia.com
> > ?Subject=Re%3A%20%5BCoco%5D%20%5BCOCO%5D%20MAME%20FDC%
> > 20Issue%20that%20can%20cause%20corruption&In-Reply-To=%
> > 3CCAHW2jkD0ehDiQ7H--G5TxgskT4X3pWxnUuy-XEtkdOd56gMY1Q%40mail.gmail.com
> %3E>
> > > Tue Aug 1 01:50:32 EDT 2017
> > >
> > > If you want to try it out the simplest way to show this off is to do
> > this:
> > > Startup CoCo 2 or CoCo3 emulation
> > > Create a new disk image in drive 0
> > > Create a new disk image in drive 1
> > > DSKINI 0
> > > DSKINI 1
> > > Enter a quick basic program like this and save it to disk:
> > > 10 PRINT "DIR 0"
> > > 20 DIR 0
> > > 30 PRINT "DIR 1"
> > > 40 DIR 1
> > > 50 GOTO 10
> > > SAVE"TEST1.BAS"
> > >
> > > Then all you have to do to see the problem is to:
> > > DIR 0:DIR 1
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > https://pairlist5.pair.net/mailman/listinfo/coco
> >
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>