Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!agate!violet.berkeley.edu!steve
From: steve@violet.berkeley.edu (Steve Goldfield)
Newsgroups: comp.sys.mac
Subject: Re: System 7.0 Q & A
Message-ID: <24249@agate.BERKELEY.EDU>
Date: 10 May 89 16:45:57 GMT
References: <3832@nunki.usc.edu> <1791@husc6.harvard.edu>
Sender: usenet@agate.BERKELEY.EDU
Organization: University of California, Berkeley
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In article <1791@husc6.harvard.edu> hellerst@husc4.UUCP writes:
#>I was under the impression that a Mac Plus/SE with 2 meg could have
#>a PMMU added and run the Virtual INIT.  Any guesses on the feasibility
#>of this with Sys. 7.0?  And if Virtual can do it, why not Apple, hmmm?
#>
#>Joe Hellerstein

If you read the available information carefully, you will see
that the Plus and SE have 68000 processors which cannot add
virtual memory by just adding a PMMU no matter how much memory
they have because the capability is not built into that
processor. The Mac II has a 68020 processor which does have
that capability if the PMMU is present. The 68030 has a built-in
PMMU.

Steve Goldfield