From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51924) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fukkZ-0001t9-8Y for qemu-devel@nongnu.org; Tue, 28 Aug 2018 16:38:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fukkW-0001x1-0S for qemu-devel@nongnu.org; Tue, 28 Aug 2018 16:38:07 -0400 Received: from mail-eopbgr680129.outbound.protection.outlook.com ([40.107.68.129]:45124 helo=NAM04-BN3-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fukkV-0001vB-FD for qemu-devel@nongnu.org; Tue, 28 Aug 2018 16:38:03 -0400 From: Aleksandar Markovic Date: Tue, 28 Aug 2018 20:37:56 +0000 Message-ID: References: <20180828130041.26445-1-jancraig@amazon.com>, <20180828130041.26445-3-jancraig@amazon.com> , , , In-Reply-To: Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH v3 2/8] target/mips: Add all MXU opcodes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Janeczek, Craig" , "qemu-devel@nongnu.org" Cc: "aurelien@aurel32.net" > To clarify, if MXU is present (a cpu defined to have MXU instructions is = selected) we will never run any of the other special2 commands? That would = actually simplify the implementation. If presence of "special2_legacy" instructions and presence of MXU instructi= ons are mutually exclusive (and I believe they are (why would they occupy t= he same opcode space unless they exclude each other?), but at this time don= 't have enough CPU documentation materials to 100% confirm that), I think t= his is the way to go. Thanks, Aleksandar=