Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 2 Jan 97 15:28:43 +0100
From:      cracauer@wavehh.hanse.de (Martin Cracauer)
To:        bde@zeta.ORG.AU
Cc:        freebsd-current@freebsd.org
Subject:   Re: i586-optimized copyin/out still broken
Message-ID:  <9701021428.AA25876@wavehh.hanse.de>
References:  <199612281235.XAA17631@godzilla.zeta.org.au>

next in thread | previous in thread | raw e-mail | index | archive | help
Bruce Evans wrote:

>>bde         96/12/28 04:18:46
>>
>>  Modified:    sys/i386/isa  npx.c
>>  Log:
>>  Disabled i586-optimized copyin and copyout again.  The fault handler
>>  is still broken - it doesn't restore the floating point state.
>>  
>>  2.2-BETA users should disable it using npx0 flags 0x04 the same as
>>  2.2-ALPHA users should have.
>>  
>>  Revision  Changes    Path
>>  1.35      +3 -1      src/sys/i386/isa/npx.c

>Already disabled in in 2.2 too.

Could this problem result in NaN being produced at wrong places.

I filled a PR (2142) about it, maybe it could be closed then.

Martin
-- 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Martin_Cracauer@wavehh.hanse.de http://cracauer.cons.org  Fax.: +4940 5228536
"As far as I'm concerned,  if something is so complicated that you can't ex-
 plain it in 10 seconds, then it's probably not worth knowing anyway"- Calvin



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?9701021428.AA25876>