From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:37225) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ua1hi-0002X4-Tw for qemu-devel@nongnu.org; Wed, 08 May 2013 06:34:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Ua1hc-00057x-IE for qemu-devel@nongnu.org; Wed, 08 May 2013 06:34:34 -0400 References: <1368007612-1873-1-git-send-email-agraf@suse.de> <1368007612-1873-3-git-send-email-agraf@suse.de> <20130508102910.GQ5000@ohm.aurel32.net> From: Torbjorn Granlund Sender: tg@gmplib.org Date: Wed, 08 May 2013 12:34:26 +0200 In-Reply-To: <20130508102910.GQ5000@ohm.aurel32.net> (Aurelien Jarno's message of "Wed\, 8 May 2013 12\:29\:10 +0200") Message-ID: <861u9hoj4d.fsf@shell.gmplib.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH] PPC: Introduce 32bit only cmp ops List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Aurelien Jarno Cc: qemu-devel@nongnu.org, Torbjorn Granlund , qemu-ppc@nongnu.org, Alexander Graf , Richard Henderson Aurelien Jarno writes: You have to declare the L bit as invalid, so that trying to execute a 64-bit cmp* instruction on a 32-bit CPU causes an invalid instruction exception. =20=20 Don't people read what I write? I give up. Goodbye. --=20 Torbj=C3=B6rn