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Path: utzoo!watmath!clyde!akgua!mcnc!unc!howell
From: howell@unc.UUCP (William Howell)
Newsgroups: net.micro,net.micro.pc
Subject: 8087 - Is it working??
Message-ID: <7256@unc.UUCP>
Date: Mon, 14-May-84 11:07:53 EDT
Article-I.D.: unc.7256
Posted: Mon May 14 11:07:53 1984
Date-Received: Tue, 15-May-84 02:54:08 EDT
Organization: CS Dept., U. of N. Carolina at Chapel Hill
Lines: 20

I have an XT to which I just added the 8087 math coprocessor.  I have
been trying to run IBM's diagnostics to determine if the 8087 is
working correctly or not.

The diagnostics start up and report that an 8087 is present but I
believe that, that is just the result of looking at the dip switch
settings and not the result of looking at the processor itself.

Step 49 of the diagnostics is where it is suppose to check the 8087.
The manual says if the message "Math Coprocessor being tested" (or
something like that) stays on the screen for more than 10 seconds have
the system serviced.  Well, on mine that message does not show up at
all.

Has anyone experienced this?  Is there any sure fire way to know that
the 8087 is working correctly?

Thanks, Bill Howell  --  Dept. of Computer Science 
	University of North Carolina at Chapel Hill
 	howell@unc