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[88.29.107.144]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-421581111easm10757595e9.19.2024.06.05.00.57.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 05 Jun 2024 00:57:30 -0700 (PDT) Message-ID: <849a91fa-b3fe-4981-a7e3-e174179be26b@linaro.org> Date: Wed, 5 Jun 2024 09:57:28 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 19/37] target/sparc: Implement FPCMPEQ8, FPCMPNE8, FPCMPULE8, FPCMPUGT8 To: Richard Henderson , qemu-devel@nongnu.org Cc: mark.cave-ayland@ilande.co.uk References: <20240526194254.459395-1-richard.henderson@linaro.org> <20240526194254.459395-20-richard.henderson@linaro.org> Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20240526194254.459395-20-richard.henderson@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::336; envelope-from=philmd@linaro.org; helo=mail-wm1-x336.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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 26/5/24 21:42, Richard Henderson wrote: > Signed-off-by: Richard Henderson > --- > target/sparc/helper.h | 4 ++++ > target/sparc/insns.decode | 5 +++++ > target/sparc/translate.c | 9 +++++++++ > target/sparc/vis_helper.c | 40 +++++++++++++++++++++++++++++++++++++++ > 4 files changed, 58 insertions(+) > +uint64_t helper_fcmpeq8(uint64_t src1, uint64_t src2) > +{ > + uint64_t a = src1 ^ src2; > + uint64_t m = 0x7f7f7f7f7f7f7f7fULL; > + uint64_t c = ~(((a & m) + m) | a | m); > + > + /* a.......b.......c.......d.......e.......f.......g.......h....... */ > + c |= c << 7; > + /* ab......bc......cd......de......ef......fg......gh......h....... */ > + c |= c << 14; > + /* abcd....bcde....cdef....defg....efgh....fgh.....gh......h....... */ > + c |= c << 28; > + /* abcdefghbcdefgh.cdefgh..defgh...efgh....fgh.....gh......h....... */ > + return c >> 56; > +} Reviewed-by: Philippe Mathieu-Daudé