From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:48665) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gyIfR-0006f8-Aw for qemu-devel@nongnu.org; Mon, 25 Feb 2019 10:59:46 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gyIfQ-0004Ku-O3 for qemu-devel@nongnu.org; Mon, 25 Feb 2019 10:59:45 -0500 Received: from mail-pl1-x62d.google.com ([2607:f8b0:4864:20::62d]:33049) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gyIfQ-0004Jc-Dm for qemu-devel@nongnu.org; Mon, 25 Feb 2019 10:59:44 -0500 Received: by mail-pl1-x62d.google.com with SMTP id y10so4718281plp.0 for ; Mon, 25 Feb 2019 07:59:44 -0800 (PST) References: <20190225115552.7534-1-david@redhat.com> <20190225115552.7534-7-david@redhat.com> From: Richard Henderson Message-ID: <062d1997-7af7-d504-65bd-da191a091038@linaro.org> Date: Mon, 25 Feb 2019 07:59:40 -0800 MIME-Version: 1.0 In-Reply-To: <20190225115552.7534-7-david@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v1 6/7] s390x/tcg: Implement LOAD LENGTHENED short HFP to long HFP List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: David Hildenbrand , qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, Cornelia Huck , Thomas Huth , Richard Henderson On 2/25/19 3:55 AM, David Hildenbrand wrote: > Nice trick to load a 32 bit value into vector element 0 (32 bit element > size) from memory, zeroing out element1. The short HFP to long HFP > conversion really only is a shift. > > Signed-off-by: David Hildenbrand > --- > target/s390x/insn-data.def | 2 ++ > target/s390x/translate.c | 6 ++++++ > 2 files changed, 8 insertions(+) Reviewed-by: Richard Henderson r~