From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51808) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X4jyt-0000j7-Jj for qemu-devel@nongnu.org; Wed, 09 Jul 2014 00:59:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X4jyk-0003HM-32 for qemu-devel@nongnu.org; Wed, 09 Jul 2014 00:59:47 -0400 Received: from mail-qg0-x233.google.com ([2607:f8b0:400d:c04::233]:37695) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X4jyj-0003HI-UQ for qemu-devel@nongnu.org; Wed, 09 Jul 2014 00:59:38 -0400 Received: by mail-qg0-f51.google.com with SMTP id z60so5924360qgd.24 for ; Tue, 08 Jul 2014 21:59:37 -0700 (PDT) Sender: Richard Henderson Message-ID: <53BCCC35.7040804@twiddle.net> Date: Tue, 08 Jul 2014 21:59:33 -0700 From: Richard Henderson MIME-Version: 1.0 References: <53BAC8CC.9070301@twiddle.net> <20140708042037.GA18016@ZenIV.linux.org.uk> <53BB899C.30901@twiddle.net> <20140708065436.GB18016@ZenIV.linux.org.uk> <20140708071334.GA21956@ZenIV.linux.org.uk> <20140708161351.GC18016@ZenIV.linux.org.uk> <53BC3484.9050802@twiddle.net> <20140708190259.GE18016@ZenIV.linux.org.uk> <53BC40AA.4090707@twiddle.net> <20140708202015.GG18016@ZenIV.linux.org.uk> In-Reply-To: <20140708202015.GG18016@ZenIV.linux.org.uk> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Al Viro Cc: Peter Maydell , QEMU Developers On 07/08/2014 01:20 PM, Al Viro wrote: > Aha... So you've caught that one already... I've looked at your branch; > AFAICS, the only thing missing there is treating stores to FPCR.DNOD in > system mode as "not implemented" (which it is in the code as well as in > 21[0-3]64 hardware). Is it loaded and stored on 21264, or it is read-as-zero/write-ignore? Is UNDZ not required to be paired with DNOD? r~