From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59904) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bHAHS-0001Pm-Kc for qemu-devel@nongnu.org; Sun, 26 Jun 2016 09:39:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bHAHP-00037q-On for qemu-devel@nongnu.org; Sun, 26 Jun 2016 09:39:22 -0400 Received: from mailapp01.imgtec.com ([195.59.15.196]:38044) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bHAHP-00037m-IK for qemu-devel@nongnu.org; Sun, 26 Jun 2016 09:39:19 -0400 Received: from hhmail02.hh.imgtec.org (unknown [10.100.10.20]) by Forcepoint Email with ESMTPS id EF10BBB90D8B for ; Sun, 26 Jun 2016 14:39:14 +0100 (IST) From: Leon Alrae Date: Sun, 26 Jun 2016 14:38:35 +0100 Message-ID: <1466948322-27138-4-git-send-email-leon.alrae@imgtec.com> In-Reply-To: <1466948322-27138-1-git-send-email-leon.alrae@imgtec.com> References: <1466948322-27138-1-git-send-email-leon.alrae@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PULL 03/10] softfloat: For Mips only, correct default NaN values List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Aleksandar Markovic From: Aleksandar Markovic Only for Mips platform, and only for cases when snan_bit_is_one is 0, correct default NaN values (in their 16-, 32-, and 64-bit flavors). For more info, see [1], page 84, Table 6.3 "Value Supplied When a New Quiet NaN Is Created", and [2], page 52, Table 3.7 "Default NaN Encodings". [1] "MIPS Architecture For Programmers Volume II-A: The MIPS64 Instruction Set Reference Manual", Imagination Technologies LTD, Revision 6.04, November 13, 2015 [2] "MIPS Architecture for Programmers Volume IV-j: The MIPS32 SIMD Architecture Module", Imagination Technologies LTD, Revision 1.12, February 3, 2016 Signed-off-by: Aleksandar Markovic Reviewed-by: Leon Alrae Reviewed-by: Peter Maydell Signed-off-by: Leon Alrae --- fpu/softfloat-specialize.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/fpu/softfloat-specialize.h b/fpu/softfloat-specialize.h index 981d665..a1bcb46 100644 --- a/fpu/softfloat-specialize.h +++ b/fpu/softfloat-specialize.h @@ -97,7 +97,11 @@ float16 float16_default_nan(float_status *status) if (status->snan_bit_is_one) { return const_float16(0x7DFF); } else { +#if defined(TARGET_MIPS) + return const_float16(0x7E00); +#else return const_float16(0xFE00); +#endif } #endif } @@ -116,7 +120,11 @@ float32 float32_default_nan(float_status *status) if (status->snan_bit_is_one) { return const_float32(0x7FBFFFFF); } else { +#if defined(TARGET_MIPS) + return const_float32(0x7FC00000); +#else return const_float32(0xFFC00000); +#endif } #endif } @@ -135,7 +143,11 @@ float64 float64_default_nan(float_status *status) if (status->snan_bit_is_one) { return const_float64(LIT64(0x7FF7FFFFFFFFFFFF)); } else { +#if defined(TARGET_MIPS) + return const_float64(LIT64(0x7FF8000000000000)); +#else return const_float64(LIT64(0xFFF8000000000000)); +#endif } #endif } -- 2.7.4