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Article #5720

8087 fl. pt. emulator

#5720
From: gst
Date: Wed, 19 Feb 1986 20:53
21 lines
1477 bytes
A friend has asked me to inquire about an 8087 software emulator.
He is mainly curious about the emulator included with the Microsoft
C compiler, v. 3.0.  He has traced its ancestry to the Intel 8087
floating point emulator.  Apparently it was ported by Microsoft, so
that it works under MS-DOS, but there's no documentation, and Microsoft's
customer service folks have not been especially helpful.

Any help unravelling this mystery would be appreciated.

Oh, by the way, he is also interested in knowing whether anyone has
produced a commented dissassembly of the compiler's runtime startup
routine.  There is some interesting stuff going on relative to the
8087 at the very least.  I'm not sure whether this latter request is
legit, since the routine might be considered Microsoft proprietary.
Please use your own judgment on this one.

Thanks, as always, in advance.

-- 
	Gary Trujillo
	(harvard!talcott!gst)
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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!whuxl!whuxlm!akgua!gatech!seismo!harvard!talcott!gst
From: gst@talcott.UUCP
Newsgroups: net.micro.pc
Subject: 8087 fl. pt. emulator
Message-ID: <568@talcott.UUCP>
Date: Wed, 19-Feb-86 15:53:06 EST
Article-I.D.: talcott.568
Posted: Wed Feb 19 15:53:06 1986
Date-Received: Fri, 21-Feb-86 07:13:37 EST
Organization: Harvard Univ. Sociology Dept. Cambridge. MA
Lines: 21
Keywords: 8087, 80287, floating point, Microsoft