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[174.21.143.238]) by smtp.gmail.com with ESMTPSA id n22sm322765pjq.25.2020.07.13.12.26.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 13 Jul 2020 12:26:27 -0700 (PDT) Subject: Re: [RFC PATCH 5/8] fpu/softfloat: define brain floating-point types To: LIU Zhiwei , qemu-devel@nongnu.org References: <20200712234521.3972-1-zhiwei_liu@c-sky.com> <20200712234521.3972-6-zhiwei_liu@c-sky.com> From: Richard Henderson Message-ID: <1c090feb-0101-ce1a-af8e-2f7e45fd5053@linaro.org> Date: Mon, 13 Jul 2020 12:26:24 -0700 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: <20200712234521.3972-6-zhiwei_liu@c-sky.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::1041; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1041.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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 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: wenmeng_zhang@c-sky.com, alex.bennee@linaro.org, wxy194768@alibaba-inc.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 7/12/20 4:45 PM, LIU Zhiwei wrote: > Signed-off-by: LIU Zhiwei > --- > include/fpu/softfloat-types.h | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h > index 7680193ebc..8f8fdfeecf 100644 > --- a/include/fpu/softfloat-types.h > +++ b/include/fpu/softfloat-types.h > @@ -112,6 +112,14 @@ typedef struct { > #define make_float128(high_, low_) ((float128) { .high = high_, .low = low_ }) > #define make_float128_init(high_, low_) { .high = high_, .low = low_ } > > +/* > + * Software brain floating-point types > + */ > +typedef uint16_t bfloat16; > +#define bfloat16_val(x) (x) > +#define make_bfloat16(x) (x) > +#define const_bfloat16(x) (x) I do not like the val/make/const macros. I've been meaning to get them everywhere. The word "brain" is better translated as "neural-network" in english. r~