From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33440) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ej6Px-0000VM-8q for qemu-devel@nongnu.org; Tue, 06 Feb 2018 11:48:26 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ej6Pw-0004pq-Gr for qemu-devel@nongnu.org; Tue, 06 Feb 2018 11:48:25 -0500 Received: from mail-wm0-x244.google.com ([2a00:1450:400c:c09::244]:39879) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ej6Pw-0004o2-A7 for qemu-devel@nongnu.org; Tue, 06 Feb 2018 11:48:24 -0500 Received: by mail-wm0-x244.google.com with SMTP id b21so5127961wme.4 for ; Tue, 06 Feb 2018 08:48:24 -0800 (PST) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Tue, 6 Feb 2018 16:47:59 +0000 Message-Id: <20180206164815.10084-7-alex.bennee@linaro.org> In-Reply-To: <20180206164815.10084-1-alex.bennee@linaro.org> References: <20180206164815.10084-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v4 06/22] include/fpu/softfloat: implement float16_chs helper List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: richard.henderson@linaro.org, peter.maydell@linaro.org, laurent@vivier.eu, bharata@linux.vnet.ibm.com, andrew@andrewdutcher.com Cc: qemu-devel@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Aurelien Jarno Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson Reviewed-by: Peter Maydell --- include/fpu/softfloat.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h index 1d34f2c3eb..f75aa59100 100644 --- a/include/fpu/softfloat.h +++ b/include/fpu/softfloat.h @@ -272,6 +272,15 @@ static inline float16 float16_abs(float16 a) */ return make_float16(float16_val(a) & 0x7fff); } + +static inline float16 float16_chs(float16 a) +{ + /* Note that chs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float16(float16_val(a) ^ 0x8000); +} + /*---------------------------------------------------------------------------- | The pattern for a default generated half-precision NaN. *----------------------------------------------------------------------------*/ -- 2.15.1