From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GVFVo-00049f-S9 for qemu-devel@nongnu.org; Wed, 04 Oct 2006 18:46:48 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GVFVm-000470-Fx for qemu-devel@nongnu.org; Wed, 04 Oct 2006 18:46:48 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GVFVm-00046x-AB for qemu-devel@nongnu.org; Wed, 04 Oct 2006 18:46:46 -0400 Received: from [80.237.130.132] (helo=mini003.webpack.hosteurope.de) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_3DES_EDE_CBC_SHA:24) (Exim 4.52) id 1GVFcI-0001F4-L6 for qemu-devel@nongnu.org; Wed, 04 Oct 2006 18:53:30 -0400 Message-ID: <452439D0.3060002@gmx.net> Date: Thu, 05 Oct 2006 00:46:40 +0200 From: Thorsten Zitterell MIME-Version: 1.0 Subject: Re: [Qemu-devel] ARM XScale extension References: <45242C63.7000306@gmx.net> <20061004215833.GA3602@xi.wantstofly.org> In-Reply-To: <20061004215833.GA3602@xi.wantstofly.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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 Hi, Lennert Buytenhek wrote: > On Wed, Oct 04, 2006 at 11:49:23PM +0200, Thorsten Zitterell wrote: > >> the attached file includes preliminary support for the Intel XScale CPU. > You don't seem to truncate acc0 to 40 bits? The DSP coprocessor in > non-iWMMXt xscale cores does truncate, and some future version of Linux > (2.6.20?) might use this as a test to determine whether the CPU we're > running on is iWMMXt-capable or not: I want to emulate the PXA255. Probably the best way to differentiate between both cases is to have a new feature like "ARM_FEATURE_IWMMXT" depending on the cpu id. -- Thorsten