Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!usc!oxy!hammersslammers1
From: hammersslammers1@oxy.edu (David J. Harr)
Newsgroups: comp.sys.mac
Subject: Re: IIci vs. IIcx - Virtual Memory
Message-ID: <92325@tiger.oxy.edu>
Date: 4 May 90 16:18:37 GMT
References: <8904@hydra.gatech.EDU>
Organization: Occidental College, Los Angeles, CA  90041
Lines: 17

Regarding the MacUser claim that the limit is 14Mbytes - 1Mbyte per slot:

Running Virtual on a Mac II here, I see that my available memory is 15Mbytes
under the Finder. The rule is 16 Mbytes minus one per slot (2^24 = 16Mbytes)
NOT 14 Mbytes. As for the claim about the IIci and the IIfx, the only thing
I can think of that is different between them and the others in the Mac '030
families is that the ROMs are supposedly 32 bit clean and so will allow the
system to use 32 bit addressing. However, by the time the system catches up
and is rewritten to handle 32 bit addressing (= 4 Gigabytes), the folks at
Apple will have kindly put together the slew of patches necessary to allow
the rest of us to run under 32 bit mode. There is nothing in the II, IIx,
SE/30, or IIcx that inherently prevents them from addressing 32 bits of
memory space; anyone who has run A/UX has used the CPU in the 32 bit mode.
So, the only thing that is stopping us is the "unclean" system, which will
be taken care of in 7.0.

David