From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31111 invoked by alias); 25 Jul 2008 08:00:04 -0000 Received: (qmail 31038 invoked by uid 22791); 25 Jul 2008 08:00:02 -0000 X-Spam-Check-By: sourceware.org Received: from mail.idnet.net.uk (HELO mail.idnet.net.uk) (212.69.36.63) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 25 Jul 2008 07:59:36 +0000 Received: from [91.135.5.64] by mail.idnet.net.uk (GMS 15.00.3626/NU3963.00.7ca42f0c) with ESMTP id rqajnkba for gdb@sourceware.org; Fri, 25 Jul 2008 08:59:28 +0100 Subject: Re: Address spaces From: Jeremy Bennett Reply-To: jeremy.bennett@embecosm.com To: gdb@sourceware.org In-Reply-To: References: <200807240926.m6O9QLHh026249@d12av02.megacenter.de.ibm.com> <4888C0CE.8000502@codesourcery.com> Content-Type: text/plain Date: Fri, 25 Jul 2008 08:50:00 -0000 Message-Id: <1216972801.3530.218.camel@thomas> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 (2.22.3.1-1.fc9) Content-Transfer-Encoding: 7bit X-AuthenticatedSender: jeremy.bennett.embecosm.com@idnet.net.uk X-IsSubscribed: yes Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2008-07/txt/msg00266.txt.bz2 >>> Doug Evans wrote: >>> >>> Do you have some specific ideas in mind? Because I was assuming (and this >>> is good to be aware of) that there would not be more than one address space >>> associated with a process. (Instantly split I/D targets a la D10V come to >>> mind, although that was handled by distinguishing pointers from addresses.) This would be useful for architectures which have large numbers of configuration registers. These are not always mapped in the main address space. They could conveniently be represented in a separate address space. Examples include the OpenCores OpenRISC 1000 special purpose registers and the ARC 600/700 auxiliary address space. Jeremy Bennett -- Tel: +44 (1202) 416955 Cell: +44 (7970) 676050 SkypeID: jeremybennett Email: jeremy.bennett@embecosm.com Web: www.embecosm.com