From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HR7e1-0003Gi-CP for qemu-devel@nongnu.org; Tue, 13 Mar 2007 10:06:29 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HR7dz-0003Ei-NL for qemu-devel@nongnu.org; Tue, 13 Mar 2007 10:06:29 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HR7dz-0003EX-K0 for qemu-devel@nongnu.org; Tue, 13 Mar 2007 09:06:27 -0500 Received: from mtaout03-winn.ispmail.ntl.com ([81.103.221.49]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1HR7dC-0003EI-Mc for qemu-devel@nongnu.org; Tue, 13 Mar 2007 10:05:39 -0400 Received: from aamtaout01-winn.ispmail.ntl.com ([81.103.221.35]) by mtaout03-winn.ispmail.ntl.com with ESMTP id <20070313140537.CHLS1468.mtaout03-winn.ispmail.ntl.com@aamtaout01-winn.ispmail.ntl.com> for ; Tue, 13 Mar 2007 14:05:37 +0000 Received: from phoenix2.frop.org ([82.21.100.63]) by aamtaout01-winn.ispmail.ntl.com with ESMTP id <20070313140537.PDTU219.aamtaout01-winn.ispmail.ntl.com@phoenix2.frop.org> for ; Tue, 13 Mar 2007 14:05:37 +0000 From: Julian Seward Subject: Re: [Qemu-devel] SSE 'maxps' instruction bug? Date: Tue, 13 Mar 2007 14:03:06 +0000 References: <200703121450.41180.jseward@acm.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200703131403.06378.jseward@acm.org> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org > QEMU and Core 2 Duo disagree on the handling of NaNs it seems. > > http://courses.ece.uiuc.edu/ece390/books/labmanual/inst-ref-simd.html > - this implies that MAXPS should leave the NaNs alone, no idea how > normative that is though (and no IA32 manual at hand) Having looked at an IA32 manual I'd say the inst-ref-simd.html description agrees with it, so the Core 2 behaviour is what qemu should do. J