Article View: comp.arch
Article #22463Re: 680x0 instructions (was: '040 vs SPARC)
From: Peter da Silva
Date: Tue, 13 Feb 1990 18:19
Date: Tue, 13 Feb 1990 18:19
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1145 bytes
In article <38554@apple.Apple.COM> baum@apple.UUCP (Allen Baum) writes:
> It is not clear that the fancy addressing
> modes run faster than a sequence of simpler insts....
Not only that, but sometimes you need a diferent set of fancy addressing
modes. For example, to efficiently implement threaded interpreted languages
on a CISC it helps to have an autoincrement indirect mode, such as the VAX,
PDP-11, and 6809 share... but the 68000 does not.
--
_--_|\ Peter da Silva. +1 713 274 5180. <peter@ficc.uu.net>.
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\_.--._/ Xenix Support -- it's not just a job, it's an adventure!
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uwm.edu!rpi!zaphod.mps.ohio-state.edu!lavaca.uh.edu!uhnix1!sugar!ficc!peterReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uwm.edu!rpi!zaphod.mps.ohio-state.edu!lavaca.uh.edu!uhnix1!sugar!ficc!peter From: peter@ficc.uu.net (Peter da Silva) Newsgroups: comp.arch Subject: Re: 680x0 instructions (was: '040 vs SPARC) Message-ID: <4PQ11W3xds13@ficc.uu.net> Date: 13 Feb 90 18:19:13 GMT References: <645@ssp11.idca.tds.philips.nl> <38554@apple.Apple.COM> Reply-To: peter@ficc.uu.net (Peter da Silva) Organization: Xenix Support, FICC Lines: 8