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Date:      Thu, 20 Dec 2007 20:39:50 +1100
From:      Peter Jeremy <peterjeremy@optushome.com.au>
To:        Carl Shapiro <carl.shapiro@gmail.com>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: critical floating point incompatibility
Message-ID:  <20071220093950.GA79196@server.vk2pj.dyndns.org>
In-Reply-To: <4dcb5abd0712192140w29fd39fh53b09fdd4d20e880@mail.gmail.com>
References:  <4dcb5abd0712192140w29fd39fh53b09fdd4d20e880@mail.gmail.com>

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On Wed, Dec 19, 2007 at 09:40:34PM -0800, Carl Shapiro wrote:
>The default setting of the x87 floating point control word on the i386
>port is 0x127F.  Among other things, this value sets the precision
>control to double precision.  The default setting of the x87 floating
>point control word on the AMD64 is 0x37F.
=2E..
>It seems clear that the right thing to do is to set the floating point
>environment to the i386 default for i386 binaries.  Is the current
>behavior intended?

I believe this is an oversight.  See the thread beginning
http://lists.freebsd.org/pipermail/freebsd-stable/2007-November/037947.html

--=20
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.

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