Motorola's MMB, PMMU and the M68030

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Article #1174

#1174

From: Franklin Reynolds
Date: Thu, 16 Oct 1986 21:00

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It is my understanding that the MMB has trouble with the TAS instruction
if the address of the operand is not in its translation cache. In the system
I use, a bus error is generated. I was wondering if the problem is fixed in 
the PMMU or the M68030. 

I realise that the M68030 doesn't exist yet, but maybe someone at Motorola
would know about relevant plans.


Franklin Reynolds
EnMasse Computer Corp.
decvax!linus!alliant!enmasse!frankr
seismo!harvard!rclex!enmasse!frankr

(The opinions expressed above are my own.)

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!think!husc6!panda!enmasse!oz!frankr
From: frankr@oz.UUCP (Franklin Reynolds)
Newsgroups: net.micro.68k
Subject: Motorola's MMB, PMMU and the M68030
Message-ID: <393@oz.UUCP>
Date: Thu, 16-Oct-86 17:00:50 EDT
Article-I.D.: oz.393
Posted: Thu Oct 16 17:00:50 1986
Date-Received: Thu, 16-Oct-86 23:33:23 EDT
Organization: EnMasse Computer Corp., Acton, MA
Lines: 15
Keywords: TAS, MMB, PMMU, M68030