From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47266) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eiBef-0004V8-Et for qemu-devel@nongnu.org; Sat, 03 Feb 2018 23:11:50 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eiBee-0004qd-K9 for qemu-devel@nongnu.org; Sat, 03 Feb 2018 23:11:49 -0500 Received: from mail-pl0-x244.google.com ([2607:f8b0:400e:c01::244]:36507) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eiBee-0004qS-E7 for qemu-devel@nongnu.org; Sat, 03 Feb 2018 23:11:48 -0500 Received: by mail-pl0-x244.google.com with SMTP id v3so9363299plg.3 for ; Sat, 03 Feb 2018 20:11:48 -0800 (PST) From: Richard Henderson Date: Sat, 3 Feb 2018 20:11:17 -0800 Message-Id: <20180204041136.17525-6-richard.henderson@linaro.org> In-Reply-To: <20180204041136.17525-1-richard.henderson@linaro.org> References: <20180204041136.17525-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH 05/24] include/fpu/softfloat: implement float16_abs helper List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, alex.bennee@linaro.org, cota@braap.org, hsp.cat7@gmail.com From: Alex Bennée 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. *----------------------------------------------------------------------------*/ -- 2.14.3