From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JA49q-000857-13 for qemu-devel@nongnu.org; Wed, 02 Jan 2008 09:01:22 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JA49n-00084f-DY for qemu-devel@nongnu.org; Wed, 02 Jan 2008 09:01:21 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JA49n-00084a-7J for qemu-devel@nongnu.org; Wed, 02 Jan 2008 09:01:19 -0500 Received: from mail.codesourcery.com ([65.74.133.4]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1JA49m-0002Gm-Mn for qemu-devel@nongnu.org; Wed, 02 Jan 2008 09:01:18 -0500 From: Paul Brook Subject: Re: [Qemu-devel] [RFC] 64 bit i/o Date: Wed, 2 Jan 2008 14:01:12 +0000 References: <477B0507.90707@earthlink.net> In-Reply-To: <477B0507.90707@earthlink.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200801021401.13611.paul@codesourcery.com> 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 Cc: Robert Reif On Wednesday 02 January 2008, Robert Reif wrote: > Sparc32 has a 64 bit counter that should be read and written as 64 > bits but that isn't supported in QEMU. I did a quick hack to add > 64 bit i/o and converted sparc32 to use it and it seems to work. > I'm suppling the sparc changes to get comments on if this is worth > pursuing. Couldn't you just latch the value when one half is accessed? Paul