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From: bjorn@alberta.UUCP (Bjorn R. Bjornsson)
Newsgroups: comp.arch
Subject: Re: Architecture upgrade
Message-ID: <167@pembina.alberta.UUCP>
Date: Mon, 22-Dec-86 23:35:23 EST
Article-I.D.: pembina.167
Posted: Mon Dec 22 23:35:23 1986
Date-Received: Tue, 23-Dec-86 22:36:29 EST
References: <112@bnr-vpa.UUCP> <9200002@rmi.UUCP> <193@drilex.UUCP> <166@pembina.alberta.UUCP>
Organization: U. of Alberta, Edmonton, AB
Lines: 11

In article <166@pembina.alberta.UUCP>, I wrote:
> If RTI / RTT had trapped mode changes, or simply been left
> unimplemented, you could have written or ported real PDP-11
> operating systems to run on the VAX.

Come to think of it, this was probably intentional, just so
that PDP-11 operating systems could not be ported to the
VAX.  Brilliant!

		Bjorn R. Bjornsson
		alberta!bjorn