3352b62beb
Floating point processing is not supported on ARM for UEFI. In order to support UEFI applications in AppPkg we use this library to provide the required functionality. Changes as compared to the NetBSD version: - Formatting changes (tabs to spaces, DOS line endings etc). - Disable exceptions as described in the float_raise() function. - Disable definition of 'Symbolic Boolean literals' in milieu.h. Source originally from: NetBSD project - Source: http://cvsweb.netbsd.org/bsdweb.cgi/?only_with_tag=MAIN - Licensing and Copyright: http://www.netbsd.org/about/redistribution.html Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Harry Liebel <Harry.Liebel@arm.com> Reviewed-by: Olivier Martin <Olivier.Martin@arm.com> Reviewed-by: Daryl McDaniel <edk2-lists@mc2research.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18116 6f19259b-4bc3-4df7-8a09-765794883524
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* $NetBSD: __aeabi_dcmpun.c,v 1.1 2013/04/16 10:37:39 matt Exp $ */
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/** @file
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*
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* Copyright (c) 2013 - 2014, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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/*
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* Written by Richard Earnshaw, 2003. This file is in the Public Domain.
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*/
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#include "softfloat-for-gcc.h"
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#include "milieu.h"
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#include "softfloat.h"
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: __aeabi_dcmpun.c,v 1.1 2013/04/16 10:37:39 matt Exp $");
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#endif /* LIBC_SCCS and not lint */
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int __aeabi_dcmpun(float64, float64);
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int
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__aeabi_dcmpun(float64 a, float64 b)
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{
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/*
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* The comparison is unordered if either input is a NaN.
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* Test for this by comparing each operand with itself.
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* We must perform both comparisons to correctly check for
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* signalling NaNs.
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*/
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return !float64_eq(a, a) || !float64_eq(b, b);
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}
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