From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IljZd-00044d-MG for qemu-devel@nongnu.org; Sat, 27 Oct 2007 07:11:25 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IljZc-00044D-A6 for qemu-devel@nongnu.org; Sat, 27 Oct 2007 07:11:25 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IljZc-00044A-4v for qemu-devel@nongnu.org; Sat, 27 Oct 2007 07:11:24 -0400 Received: from relay01.mx.bawue.net ([193.7.176.67]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IljZb-0005WW-PJ for qemu-devel@nongnu.org; Sat, 27 Oct 2007 07:11:23 -0400 Date: Sat, 27 Oct 2007 12:11:17 +0100 From: Thiemo Seufer Subject: Re: [Qemu-devel] qemu host-utils.c Message-ID: <20071027111116.GG29176@networkno.de> References: <471F1C7F.8060003@bellard.org> <1193222136.16781.229.camel@rapid> <20071024173726.GC6666@networkno.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Blue Swirl Cc: qemu-devel@nongnu.org Blue Swirl wrote: > On 10/24/07, Thiemo Seufer wrote: > > - SPARC and Alpha look like they will break on 32bit hosts, they should > > do multiplications the same way as the other 64bit targets. > > I can't see how Sparc would break: smul and umul perform 32x32->64 bit > multiplications, Sparc64 mulx does 64x64->64 bit multiplications. > There is no overflow detection. Ah, then it is ok. Thanks for the explanation. Thiemo