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- From: casgrain@ERE.UMontreal.CA (Casgrain Philippe)
- Newsgroups: comp.sys.mac.apps
- Subject: Re: Virtual Memory on MacII? Help!
- Message-ID: <1992Dec21.224836.23390@cc.umontreal.ca>
- Date: 21 Dec 92 22:48:36 GMT
- References: <1992Dec21.214757.11209@gmuvax2.gmu.edu>
- Sender: news@cc.umontreal.ca (Administration de Cnews)
- Organization: Universite de Montreal
- Lines: 30
-
- You need the PMMU chip (MC 68851) for the Mac II to be able to use VM.
- 68030+ chips have the PMMU built-in, so they have VM "instantly" ;-)
-
- This chip is on Apple's price list.
-
- Connectix released MODE32, which enables 32-bit memory addressing on non-
- 32-bit clean (pre-IIci) machines. This product has been bought and is being
- distributed freely by Apple. It allows you to have more than 8MB of "real"
- RAM in your machine.
-
- Philippe
-
-
- In article <1992Dec21.214757.11209@gmuvax2.gmu.edu> bradcox@sitevax.gmu.edu (Dr. Brad Cox) writes:
- >I just bought a copy of Omnipage Pro (optical character recognition) for my
- >MacII (8mB). It immediately crashes with an 'unimplemented trap' message.
- >The manual says the cure for this 'feature' is to turn on virtual memory
- >in the Memory CDEV, which any MacII user will immediately know is not there.
- >
- >I remember Connectix released a free doodad a year or so ago to Apple that
- >provided, as I recall, software-supported virtual memory on MacIIs. Apple
- >released the software for free.
- >
- >I'm virtually certain I saved the software on an archive, but cannot for the
- >life of me remember the name. Can you provide the name or recommend a site
- >I can download a copy from?
- >--
- >--
- > Brad Cox bradcox@sitevax.gmu.edu 703 993 1142 work 703 968 8229 home
- > George Mason Program on Social and Organizational Learning
-