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Article #29785Re: What C compiler generates fastest code?
From: nick_john_pilch
Date: Sun, 03 Jul 1988 00:13
Date: Sun, 03 Jul 1988 00:13
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LSC 2.15 does not generate code that uses the 68020 or the 68881 math coprocessor chip directly. Floating point is done through software - Apple's SANE. SANE on a Mac II is smart enough to use the Math coprocessor itself but I imagine that there's a speedup when the 68881 can be called directly rather than going trough the overhead of SANE. MPW C can produce code for the Mac II. You can set compiler options to use the 68020 instruction set and make direct calls to the 68881. (SANE is Standard Apple Numerics Environment, I think) -NP
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!ubvax!lll-winken!uunet!portal!cup.portal.com!nick_john_pilch From: nick_john_pilch@cup.portal.com Newsgroups: comp.sys.mac Subject: Re: What C compiler generates fastest code? Message-ID: <7069@cup.portal.com> Date: 3 Jul 88 00:13:09 GMT References: <14105@shemp.CS.UCLA.EDU> Organization: The Portal System (TM) Lines: 9 XPortal-User-Id: 1.1001.4956