Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site decvax.UUCP
Path: utzoo!linus!security!genrad!decvax!aps
From: aps@decvax.UUCP (Armando P. Stettner)
Newsgroups: net.unix-wizards
Subject: uba_hd->lastiv
Message-ID: <242@decvax.UUCP>
Date: Sat, 22-Oct-83 00:12:48 EDT
Article-I.D.: decvax.242
Posted: Sat Oct 22 00:12:48 1983
Date-Received: Sat, 22-Oct-83 12:14:15 EDT
Organization: DEC UNIX Engineering Group
Lines: 8


The object uba_hd->lastiv was added to late 4.1 systems to support
those UNIBUS devices that did not have hardwired interrupt vectors.
During autoconfig, this value is decremented and the value used
as an interrupt vector to be loaded into a device (currently
used by the DMF and UDA drivers).  Lastiv is last interrupt
vector.
	aps.