Article View: comp.sys.mac
Article #464Re: 68851 PMMU Test?
From: Paul Campbell
Date: Wed, 21 Jun 1989 06:58
Date: Wed, 21 Jun 1989 06:58
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In article <134@nisca.ircc.ohio-state.edu> bobd@hpuxa.ircc.ohio-state.edu (Bob DeBula) writes: >Well, I got my 68851 PMMU installed in my MAC-II, now (without buying >Virtual or A/UX) does anyone know how to test it? I'm planning on waiting >until System 7.0 to actually exploit it, but I would like to assure myself >that it's properly installed and functioning. Any ideas netters? actually a very simple (and quite good) test is to plug in the PMMU and turn the Mac on. If you get a happy Mac the the PMMU is OK (they actually have to use the PMMU to map to the crazy 24-bit addressing ....). Of course this does not test all the internal functions of the PMMU but at least you know the TLB works and that it walks page tables etc Paul -- Paul Campbell, Taniwha Systems Design UUCP: ..!mtxinu!taniwha!paul Oakland CA AppleLink: D3213 Q: How many men does it take to pilot the Exxon Valdez? A: One and a fifth.
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!unisoft!mtxinu!taniwha!paulReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!unisoft!mtxinu!taniwha!paul From: paul@taniwha.UUCP (Paul Campbell) Newsgroups: comp.sys.mac Subject: Re: 68851 PMMU Test? Message-ID: <383@taniwha.UUCP> Date: 21 Jun 89 06:58:57 GMT References: <134@nisca.ircc.ohio-state.edu> Reply-To: paul@taniwha.UUCP (Paul Campbell) Distribution: comp.sys.mac Organization: Taniwha Systems Design, Oakland Lines: 21