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Path: utzoo!linus!philabs!seismo!hao!menlo70!nsc!chongo
From: chongo@nsc.UUCP (Landon Noll)
Newsgroups: net.arch,net.micro.68k,net.micro.16k
Subject: Re: 16k vs 68k vs 432
Message-ID: <531@nsc.UUCP>
Date: Tue, 10-Jan-84 17:26:53 EST
Article-I.D.: nsc.531
Posted: Tue Jan 10 17:26:53 1984
Date-Received: Fri, 13-Jan-84 07:36:17 EST
References: <524@nsc.UUCP>, <220@dual.UUCP>
Organization: National Semiconductor, Sunnyvale
Lines: 19

good comments on the DUAL.  now in reply to:

	>One minor note on the NS 16081 MMU, is that apparently it has
	>512 byte pages ingrained into its structure, and so those of you who
	>want larger page sizes than that are in for an interesting time. Or so
	>our CPU board designer says.
	>
	>	sitting on the software side of the fence,
	>		waiting for my microVAX,
	>			with 4.2BSD,

At National we dont find a "problem" with the 512 byte hardware pages.  If you
want 1k pages, cluster them two at a time.  a nice #define or two and you dont
notice the difference at the source file level.  now some of you folks might
say that such clustering work-a-rounds are a problem, but thats picky.  as
far as hardware is concerned, our systems do it quite well.  perhaps your
hardware person picked up another random rumor?

chongo <lowercase them letters!> /\oo/\