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From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: net.micro.68k
Subject: Re: SUN 3/160C question
Message-ID: <6518@utzoo.UUCP>
Date: Sat, 15-Mar-86 21:58:25 EST
Article-I.D.: utzoo.6518
Posted: Sat Mar 15 21:58:25 1986
Date-Received: Sat, 15-Mar-86 21:58:25 EST
References: <7300003@uicsl>, <3358@sun.uucp>
Organization: U of Toronto Zoology
Lines: 11

>There is also a vertical retrace interrupt, which is not used by the current
>kernel driver.

If the current software doesn't use it, be sure it works before you rely
on it!  This may sound a bit silly, but it's not -- a friend of mine who
worked with some of the very early commercial Suns discovered, as I recall,
that the vertical-retrace interrupt on the Sun 1 (or maybe Sun 0.9) in fact
did not work, and it turned out that Sun had never tried using it.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry