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Mon, 23 Aug 2021 10:04:17 -0700 (PDT) Received: from [192.168.1.11] ([71.212.149.176]) by smtp.gmail.com with ESMTPSA id u10sm16390033pfg.168.2021.08.23.10.04.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Aug 2021 10:04:17 -0700 (PDT) Subject: Re: [PATCH v3 04/15] target/riscv: Remove the W-form instructions from Zbs To: Philipp Tomsich , qemu-devel@nongnu.org References: <20210823164038.2195113-1-philipp.tomsich@vrull.eu> <20210823164038.2195113-5-philipp.tomsich@vrull.eu> From: Richard Henderson Message-ID: Date: Mon, 23 Aug 2021 10:04:16 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210823164038.2195113-5-philipp.tomsich@vrull.eu> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::42a; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42a.google.com X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 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=-2.023, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Cc: Kito Cheng , Alistair Francis Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 8/23/21 9:40 AM, Philipp Tomsich wrote: > Zbs 1.0.0 (just as the 0.93 draft-B before) does no provide for W-form > instructions for Zbs (single-bit instructions). Remove them. > > Note that these instructions had already been removed for the 0.93 > version of the draft-B extenstion and have not been present in the > binutils patches circulating in January 2021. > > Signed-off-by: Philipp Tomsich > --- > > Changes in v3: > - Remove the W-form instructions from Zbs in a separate commit. > > target/riscv/insn32.decode | 7 ---- > target/riscv/insn_trans/trans_rvb.c.inc | 49 ------------------------- > 2 files changed, 56 deletions(-) Reviewed-by: Richard Henderson r~