From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38130) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VMJGA-0001Nq-MX for qemu-devel@nongnu.org; Wed, 18 Sep 2013 11:01:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VMJG4-0003Nn-Mi for qemu-devel@nongnu.org; Wed, 18 Sep 2013 11:01:42 -0400 Received: from lhrrgout.huawei.com ([194.213.3.17]:29839) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VMJG4-0003Ng-DN for qemu-devel@nongnu.org; Wed, 18 Sep 2013 11:01:36 -0400 Message-ID: <5239C043.40100@huawei.com> Date: Wed, 18 Sep 2013 17:01:23 +0200 From: Claudio Fontana MIME-Version: 1.0 References: <1379195690-6509-1-git-send-email-rth@twiddle.net> <1379195690-6509-9-git-send-email-rth@twiddle.net> <5236C44C.7060405@huawei.com> <52372479.3080807@twiddle.net> <52381167.9020800@huawei.com> <52386D08.8090307@twiddle.net> <52396335.5010800@huawei.com> <5239BEA8.2080908@twiddle.net> In-Reply-To: <5239BEA8.2080908@twiddle.net> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v4 08/33] tcg-aarch64: Introduce tcg_fmt_Rdnm and tcg_fmt_Rdnm_lsl List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Richard Henderson Cc: peter.maydell@linaro.org, qemu-devel@nongnu.org On 18.09.2013 16:54, Richard Henderson wrote: > On 09/18/2013 01:24 AM, Claudio Fontana wrote: >> If you _really_ want to strip the right shift functionality away for some reason, could you state it? > > (1) It will never never ever be used. > > (2) I do not find + for LSR, - for LSL intuitive at all. > If we're to have them at all, better to pass that > separately from the shift count, an enumeration that > exactly maps to the "shift" field in the insn. > > (3) It will never never ever be used. You seem to feel strongly about it, and I don't, so lets indeed drop it then. C.