Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!rutgers!mit-eddie!genrad!decvax!decwrl!nsc!nsta!instable!amos
From: amos@instable.UUCP (Amos Shapir)
Newsgroups: comp.arch
Subject: Re: 64 Vs 32
Message-ID: <754@instable.UUCP>
Date: Fri, 24-Apr-87 06:43:38 EST
Article-I.D.: instable.754
Posted: Fri Apr 24 06:43:38 1987
Date-Received: Sat, 25-Apr-87 19:48:56 EST
References: <3810013@nucsrl.UUCP> <28200016@ccvaxa> <1316@ames.UUCP> <1071@osiris.UUCP> <751@instable.UUCP> <1109@aw.sei.cmu.edu>
Reply-To: amos%nsta@nsc.com (Amos Shapir)
Distribution: world
Organization: National Semiconductor (Israel) Ltd. Home of the 32532
Lines: 14
Summary: Not another $%#@86
Hdate: 25 Nisan 5747


I guess I didn't make myself clear: I didn't mean to describe another
@#$% 86! All I wanted is to point out that on 64-bit machine, there will
be some use of the base/offset mechanism. The full virtual 64-bit address
space can remain contiguous if you like, but you can also have a 'small'
32-bit model if you like to. The 4Gb limit, unlike the 64K limit, is
not something everybody will bump their heads into.

All that will of course depend on the implementation, but remember
that compatibility is going to stay with us always.
-- 
	Amos Shapir
National Semiconductor (Israel)
6 Maskit st. P.O.B. 3007, Herzlia 46104, Israel  Tel. (972)52-522261
amos%nsta@nsc.com {hplabs,pyramid,sun,decwrl} 34.48'E 32.10'N