[TUHS] What's with the DZ-11?

Dave Horsfall dave at horsfall.org
Fri Nov 28 05:45:38 AEST 2014

On Thu, 27 Nov 2014, Dave Horsfall wrote:

> I've seen a couple of less than flattering references here; what was the 
> problem with them?

A number of responses, all of which boil down to the same thing, viz: an 
interrupt on each character.

I know that, which is why we (UNSW) re-worked the driver; I can't believe 
that we were the only ones who did so.  It cleaned out as many silos as it 
could, possibly even by disabling interrupts completely and using clock 
ticks; I can't remember.

With any luck, the driver (dz.c?) should be on Minnie somewhere; it was 
done by Ian Johnston(sp?) at the Australian Graduate School of Management
(ianj at agsm, or possibly ianj at agsm70).

Dave Horsfall DTM (VK2KFU)  "Bliss is a MacBook with a FreeBSD server."
http://www.horsfall.org/spam.html (and check the home page whilst you're there)

More information about the TUHS mailing list