[Coco] Re: Thought

[Bob Devries]

The disto SCII is no-halt, but you have to use the right drivers for OS9.
Under DECB, they work as normal, in halt mode.

--
Regards, Bob Devries. Dalby, Queensland, Australia.
Faith isn't faith until it's all you're holding on to.
http://e4god.com/freeblogs/bdevries/


----- Original Message ----- 
From: "Charlie" <chazbeenhad at hotmail.com>
To: <coco at maltedmedia.com>
Sent: Saturday, September 25, 2004 4:54 AM
Subject: [Coco] Re: Thought


> Is the Disto Super Controller 2 a no-halt controller?
>
> I have one in my coco and Nitros9 gets choppy like you said, doing disk
> reading/writing.
>
> Charlie
>
> "John R. Hogerhuis" <jhoger at pobox.com> wrote
> in message news:1096048110.25432.66.camel at aragorn...
> > On Fri, 2004-09-24 at 10:23, Neil Morrison wrote:
> > > ----- Original Message ----- 
> > > From: "Mark McDougall"
> <msmcdoug at optushome.com.au>
> > >
> > > > I'm not sure how the CoCo drive works - I'm guessing from your
> comments it
> > > > doesn't interrupt the 6809 when data is ready?!?
> > >
> > > IIRC the drive HALTs the processor until the buffer is transferred.
> That's
> > > why the OS-9 clock gets off time when you do disk I/O.
> > >
> > > NM
> > >
> >
> > Yep. Hence the disto no-halt controller. But no-halt is more important
> > for smooth multi-tasking. I remember being SO disappointed when I
> > finally got a rig where I could hook up another coco to a shell prompt
> > on the serial port, and tried some disk commands. Choppy, Ugh...
> >
> > OS-9 is really happiest with a RTC... sucks having to enter time in at
> > each boot. Once we get ethernet we could get time via NTP.
> >
> > Actually ability to read the host's time would be a nice feature for
> > Drivewire as well if it isn't already in there... (my Drivewire is
> > in-the-mail).
> >
> > -- John.
> >
> >
> > -- 
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> > Coco at maltedmedia.com
> > http://five.pairlist.net/mailman/listinfo/coco
> >
>
>
>
>
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