[Coco] Re: Thought
bdevries at gil.com.au
Fri Sep 24 19:32:42 EDT 2004
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.
----- 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
> "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.
> > > 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.
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
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