Re: 386 instructions

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Article #41370

#41370

From: Wm E Davidsen Jr
Date: Fri, 12 Jan 1990 20:17

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1288 bytes

In article <3114@plains.UUCP> harlow@plains.UUCP (Jay B. Harlow) writes:

| from my understanding 32-bit code under dos is a hair slower then under 
| unix (protected mode), ok on unix you have other tasks(maybe) running.

  I can't say for sure, but the speed of 32 bit code over 16 bit comde 
under DOS can be up to 2:1 faster for some things. Note "can be." It all
depends on what you're doing.

  I have some documentation which indicates that PKZIP runs in 32 bit
mode on a 386, and that there's an option to force it to run in 286
mode. I don't have any details other than that. Supposedly it make about
a 40% difference.
-- 
bill davidsen	(davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen)
            "Stupidity, like virtue, is its own reward" -me

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Message-ID: <2008@crdos1.crd.ge.COM>

Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!crdgw1!crdos1!davidsen

References:

<13346@garnet.BBN.COM> <580@watserv1.waterloo.edu> <6142@internal.Apple.COM> <8166@portia.Stanford.EDU> <3114@plains.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!crdgw1!crdos1!davidsen
From: davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 386 instructions
Message-ID: <2008@crdos1.crd.ge.COM>
Date: 12 Jan 90 20:17:42 GMT
References: <13346@garnet.BBN.COM> <580@watserv1.waterloo.edu> <6142@internal.Apple.COM> <8166@portia.Stanford.EDU> <3114@plains.UUCP>
Reply-To: davidsen@crdos1.crd.ge.com (bill davidsen)
Distribution: comp
Organization: GE Corp R&D Center, Schenectady NY
Lines: 16

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