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Re: [Qemu-devel] [PATCH 03/20] softfloat: add floatx80 constants

From: Aurelien Jarno
Subject: Re: [Qemu-devel] [PATCH 03/20] softfloat: add floatx80 constants
Date: Wed, 20 Apr 2011 11:05:19 +0200
User-agent: Mutt/1.5.20 (2009-06-14)

On Tue, Apr 19, 2011 at 12:07:26PM +0100, Peter Maydell wrote:
> On 18 April 2011 21:59, Aurelien Jarno <address@hidden> wrote:
> > Add floatx80 constants similarly to float32 or float64.
> >
> > Signed-off-by: Aurelien Jarno <address@hidden>
> Reviewed-by: Peter Maydell <address@hidden>
> NB: I didn't actually check you got the ln2 value right :-)
> Also for x86 these constants are stored internally with a 66 bit
> mantissa and then rounded according to the current rounding mode,
> so strictly speaking using these values isn't always the right
> thing, but I think that's being overly picky for now.

Agreed, however it's probably something x86 specific, so that should be
handled in target-i386. That said except on old ARM Netwinder chips, 
only Intel is using floatx80.

Aurelien Jarno                          GPG: 1024D/F1BCDB73
address@hidden                 http://www.aurel32.net

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