From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FOjIG-0002hM-Tj for qemu-devel@nongnu.org; Wed, 29 Mar 2006 17:37:37 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FOjIF-0002fg-0R for qemu-devel@nongnu.org; Wed, 29 Mar 2006 17:37:36 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FOjIE-0002fa-So for qemu-devel@nongnu.org; Wed, 29 Mar 2006 17:37:34 -0500 Received: from [81.29.64.88] (helo=mail.shareable.org) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1FOjKH-0001cf-4n for qemu-devel@nongnu.org; Wed, 29 Mar 2006 17:39:41 -0500 Date: Wed, 29 Mar 2006 23:37:24 +0100 From: Jamie Lokier Subject: Re: [Qemu-devel] Missing ARMv6 instructions? Message-ID: <20060329223724.GA28841@mail.shareable.org> References: <200603291539.12628.paul@codesourcery.com> <20060329203912.GA14514@mail.shareable.org> <200603292301.41791.paul@codesourcery.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200603292301.41791.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: Paul Brook Cc: qemu-devel@nongnu.org Paul Brook wrote: > Better would be to lobby ARM to allow open source emulators. > "I'd like to use ARM hardware for , but qemu doesn't support > ARMv7 so I'm thinking of using PowerPC instead" is a particularly good > argument ;-) I suspect ARM's business model - dependent wholly on licensing the ARM architecture in various forms - would make it very difficult for them to agree to that argument even if it would gain them one customer. It'll be interesting when someone develops a compiler that uses very detailed machine descriptions - with enough detail to describe an architecture well enough that the description can also be used (by a different program) to emulate it to a significant degree. They need good compilers to support the architrecture. But a very detailed machine description is also their business nightmare: the basis for software, and later hardware, implementations of their architecture. I wonder if people such as yourself will be able to contribute to the development of the machine description for such a compiler. -- Jamie