Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.csd.uwm.edu!uakari.primate.wisc.edu!ames!amelia!izen
From: izen@amelia.nas.nasa.gov (Steven H. Izen)
Newsgroups: comp.unix.i386
Subject: 3167 and 387
Keywords: Weitek 3167, 80387, floating point
Message-ID: <3036@amelia.nas.nasa.gov>
Date: 29 Aug 89 21:29:07 GMT
Lines: 25

I have a Compaq Deskpro 386/20 which has both a 3167 and a 387 in it.  In order
to take advantage of the Weitek 3167 I have been using MicroWays's c and 
Fortran compilers.  However, the 1167 (used for the 3167) math libraries 
supplied by both ISC and MicroWay are incomplete.  In particular drand48 does
not appear in either version of libm1167.a.

	As a result, I have been looking for a way to use a subroutine which
uses the 387 for its floating point calculations while the calling routine uses
the 3167.  If I naively link two such subroutines together, I get a floating
point exception at run time.

Does anyone have any ideas?

I expect that this will also be a problem if I attempt to link any 3167
application to the Xlib routines provided by ISC, but I haven't tried that one
yet.  (Any ISC techies out there--Do you think it would be possible to obtain a
version of Xlib compiled to use the 3167?)

Thanx in advance.

Steve Izen
-- 
Steve Izen: {sun,decvax,uunet}!cwjcc!skybridge!izen386!steve
or steve%izen386.uucp@skybridge.scl.cwru.edu
or izen@cwru.cwru.edu