From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2178CC388F9 for ; Thu, 19 Nov 2020 22:28:10 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 908EB21D7A for ; Thu, 19 Nov 2020 22:28:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="MdLIPA3L" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 908EB21D7A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:45564 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kfsPQ-0004Aq-Bs for qemu-devel@archiver.kernel.org; Thu, 19 Nov 2020 17:28:08 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:57936) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kfsOP-00035U-CY for qemu-devel@nongnu.org; Thu, 19 Nov 2020 17:27:05 -0500 Received: from mail-pl1-x62f.google.com ([2607:f8b0:4864:20::62f]:34690) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kfsOJ-000650-R6 for qemu-devel@nongnu.org; Thu, 19 Nov 2020 17:27:05 -0500 Received: by mail-pl1-x62f.google.com with SMTP id l11so3775964plt.1 for ; Thu, 19 Nov 2020 14:26:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=+h80lgtTsW6rMfDFW/agJyMzJwmXtErIFTTufiRB92Y=; b=MdLIPA3LTPR9tnodIO0jW4IPCnoRvzNAOBrr9RI7tGz2YL5okJqAbvrl9Ut/s9lSgW DToq0mIfULPpNWSFBSJhZ5QrnNLkZZ+sLnc0pZhhuzlDhdCQURoTKR29bpg0KnQAvt1D eRQrw5zQMmqdabVUfaj3BD/bhmvcQ5JPLq1Ql4uZOL4HvQhb+2yolMHlnMh2jxXNaESy hR53mmNsQzGTS/rDJUGP9iyYo1BKRTiXIyC0G5OMynZ7y8IbRGX/HqUy8ElXhTJBg0YI m94OJdFiw9E8xIOhoAkwcQYHgVq0rxN3L13uv2Dwx67NxqONm5z6/x675DKVJWLChCtl cONw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=+h80lgtTsW6rMfDFW/agJyMzJwmXtErIFTTufiRB92Y=; b=A1+BZV9Ni8vE+p26q2LvilvUg89j9eyEwxtWLIZllhB6kVC97lmc3yzdXQOW57Fmc1 AloxLQ50xu1w9gzXQe+37qNmG+/C2BYN+475Q1bopSFy37vDBaVpwAbGMMq2RnaGATAJ UOHTUq9MWK5+8cpAhgQfgIZogAwwgEc0jOSVOgNTfUC2wVzWmg1wCuUHzO+R0G6UCKSk z96nRnbHhqURfbVwePUWTcPbNrKHplmUS8k/6Qa/DEOrBBosz2v5TkqKhjbOwR1EHc+f y6to3lgMzxGNGn4bjXpRdy08OcNFcucHyPniZS5lv9vKoMgwCPvp7h8iy9b7NGacyf84 pfiA== X-Gm-Message-State: AOAM532t1+x0stewlbXe8RnHfnyOAOHkb6KUDaR2ECneRWMqV8Sy8xel MStB23oRfsmKWuamRivqB9de0Q== X-Google-Smtp-Source: ABdhPJzY7M4AS45yNbNRLsX7Fl/b530IoHtU2jVrRkRJ9ph5lsDVEMfx3+8QUwaYw7lp09xcFlrfFA== X-Received: by 2002:a17:902:9a0c:b029:d6:c6a3:66f with SMTP id v12-20020a1709029a0cb02900d6c6a3066fmr10390992plp.52.1605824817537; Thu, 19 Nov 2020 14:26:57 -0800 (PST) Received: from [192.168.1.11] ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id x61sm818850pjj.4.2020.11.19.14.26.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Nov 2020 14:26:56 -0800 (PST) Subject: Re: [RFC 00/15] support subsets of bitmanip extension To: frank.chang@sifive.com, qemu-devel@nongnu.org, qemu-riscv@nongnu.org References: <20201118083044.13992-1-frank.chang@sifive.com> From: Richard Henderson Message-ID: <2546c25f-e60d-7fa4-9106-2de1ab619daf@linaro.org> Date: Thu, 19 Nov 2020 14:26:54 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201118083044.13992-1-frank.chang@sifive.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::62f; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 11/18/20 12:29 AM, frank.chang@sifive.com wrote: > This patchset implements RISC-V B-extension latest draft version > (2020.10.26) Zbb, Zbs and Zba subset instructions. With some additional instructions from Zbp, it seems. Although the document isn't completely coherent, with various instructions being present in multiple subsets, and some instructions w/ strike-out. The B extension requires more than these three, but I suppose turning it on with just these 3 subsets during development is ok. r~