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extF80M_isSignalingNaN.c
Go to the documentation of this file.
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/*============================================================================
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This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
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Package, Release 3e, by John R. Hauser.
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Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions, and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions, and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the University nor the names of its contributors may
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be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
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DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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=============================================================================*/
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#include <stdbool.h>
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#include <
stdint.h
>
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#include "platform.h"
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#include "softfloat.h"
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/*----------------------------------------------------------------------------
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*----------------------------------------------------------------------------*/
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bool
extF80M_isSignalingNaN
(
const
extFloat80_t
*aPtr )
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{
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const
struct
extFloat80M
*aSPtr;
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uint64_t
uiA0;
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aSPtr = (
const
struct
extFloat80M
*) aPtr;
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if
( (aSPtr->
signExp
& 0x7FFF) != 0x7FFF )
return
false
;
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uiA0 = aSPtr->
signif
;
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return
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! (uiA0 &
UINT64_C
( 0x4000000000000000 ))
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&& (uiA0 &
UINT64_C
( 0x3FFFFFFFFFFFFFFF));
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}
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extF80M_isSignalingNaN
bool extF80M_isSignalingNaN(const extFloat80_t *aPtr)
Definition
extF80M_isSignalingNaN.c:44
stdint.h
UINT64_C
#define UINT64_C(val)
Definition
stdint.h:284
uint64_t
unsigned __int64 uint64_t
Definition
stdint.h:136
extFloat80M
Definition
softfloat_types.h:63
extFloat80M::signif
uint64_t signif
Definition
softfloat_types.h:63
extFloat80M::signExp
uint16_t signExp
Definition
softfloat_types.h:63
libraries
softfloat
source
8086
extF80M_isSignalingNaN.c
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