1dbda2b4cf
In order to support software floating point in the context of DXE drivers etc, this factors out the core ARM softfloat support into a separate library. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19030 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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