[Coco] Re: Thought

[Charlie]

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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