From mboxrd@z Thu Jan 1 00:00:00 1970 From: dave@horsfall.org (Dave Horsfall) Date: Fri, 28 Nov 2014 06:45:38 +1100 (EST) Subject: [TUHS] What's with the DZ-11? In-Reply-To: References: Message-ID: 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)