From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33484) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ej6Py-0000We-Eh for qemu-devel@nongnu.org; Tue, 06 Feb 2018 11:48:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ej6Px-0004ro-Gp for qemu-devel@nongnu.org; Tue, 06 Feb 2018 11:48:26 -0500 Received: from mail-wm0-x242.google.com ([2a00:1450:400c:c09::242]:53519) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ej6Px-0004pn-8O for qemu-devel@nongnu.org; Tue, 06 Feb 2018 11:48:25 -0500 Received: by mail-wm0-x242.google.com with SMTP id t74so5035259wme.3 for ; Tue, 06 Feb 2018 08:48:25 -0800 (PST) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Tue, 6 Feb 2018 16:47:58 +0000 Message-Id: <20180206164815.10084-6-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 05/22] include/fpu/softfloat: implement float16_abs 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 This will be required when expanding the MINMAX() macro for 16 bit/half-precision operations. Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell --- include/fpu/softfloat.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h index f3b9008f78..1d34f2c3eb 100644 --- a/include/fpu/softfloat.h +++ b/include/fpu/softfloat.h @@ -265,6 +265,13 @@ static inline int float16_is_zero_or_denormal(float16 a) return (float16_val(a) & 0x7c00) == 0; } +static inline float16 float16_abs(float16 a) +{ + /* Note that abs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float16(float16_val(a) & 0x7fff); +} /*---------------------------------------------------------------------------- | The pattern for a default generated half-precision NaN. *----------------------------------------------------------------------------*/ -- 2.15.1