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Article #2218Re: Instruction (dis)continuation (
From: BEAR
Date: Tue, 12 Sep 1989 16:02
Date: Tue, 12 Sep 1989 16:02
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927 bytes
It would appear that what this thread is *really* discussing is whether or not MEMORY MAPPED I/O is a good thing. The concensus seems to be that it should be avoided (use I/O instructions instead). If it can't be avoided, be careful. It may of course be that a particular machine has no special I/O instructions (e.g. Acme RISC :-)), in which case you should "do the right thing" (most likely a load or store). Bob Beckwith Prime Computer, Inc. (508)879-2960 x 4209 bear@s34.prime.com
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!primerd!ENI!S34!BEAR From: BEAR@S34.Prime.COM Newsgroups: comp.arch Subject: Re: Instruction (dis)continuation ( Message-ID: <261500010@S34.Prime.COM> Date: 12 Sep 89 16:02:00 GMT References: <2353@oakhill.UUCP> Lines: 14 Nf-ID: #R:oakhill.UUCP:-235300:S34:261500010:000:487 Nf-From: S34.Prime.COM!BEAR Sep 12 16:02:00 1989