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Editing: specialize.h

/*============================================================================

This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3e, by John R. Hauser.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
    this list of conditions, and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions, and the following disclaimer in the documentation
    and/or other materials provided with the distribution.

3. Neither the name of the University nor the names of its contributors may
    be used to endorse or promote products derived from this software without
    specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=============================================================================*/

#ifndef specialize_h
#define specialize_h 1

// #include <stdbool.h>
// #include <stdint.h>
#include "softfloat/primitiveTypes.h"
#include "softfloat.h"

/*----------------------------------------------------------------------------
| Default value for 'softfloat_detectTininess'.
*----------------------------------------------------------------------------*/
#define init_detectTininess softfloat_tininess_beforeRounding

/*----------------------------------------------------------------------------
| The values to return on conversions to 32-bit integer formats that raise an
| invalid exception.
*----------------------------------------------------------------------------*/
#define ui32_fromPosOverflow 0xFFFFFFFF
#define ui32_fromNegOverflow 0
#define ui32_fromNaN         0
#define i32_fromPosOverflow  0x7FFFFFFF
#define i32_fromNegOverflow  (-0x7FFFFFFF - 1)
#define i32_fromNaN          0

/*----------------------------------------------------------------------------
| The values to return on conversions to 64-bit integer formats that raise an
| invalid exception.
*----------------------------------------------------------------------------*/
#define ui64_fromPosOverflow UINT64_C( 0xFFFFFFFFFFFFFFFF )
#define ui64_fromNegOverflow 0
#define ui64_fromNaN         0
#define i64_fromPosOverflow  INT64_C( 0x7FFFFFFFFFFFFFFF )
#define i64_fromNegOverflow  (-INT64_C( 0x7FFFFFFFFFFFFFFF ) - 1)
#define i64_fromNaN          0

/*----------------------------------------------------------------------------
| "Common NaN" structure, used to transfer NaN representations from one format
| to another.
*----------------------------------------------------------------------------*/
struct commonNaN {
    bool sign;
#ifdef LITTLEENDIAN
    uint64_t v0, v64;
#else
    uint64_t v64, v0;
#endif
};

/*----------------------------------------------------------------------------
| The bit pattern for a default generated 32-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF32UI 0x7FC00000

/*----------------------------------------------------------------------------
| Returns true when 32-bit unsigned integer 'uiA' has the bit pattern of a
| 32-bit floating-point signaling NaN.
| Note:  This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF32UI( uiA ) ((((uiA) & 0x7FC00000) == 0x7F800000) && ((uiA) & 0x003FFFFF))

/*----------------------------------------------------------------------------
| Assuming 'uiA' has the bit pattern of a 32-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by 'zPtr'.  If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f32UIToCommonNaN( uint_fast32_t uiA, struct commonNaN *zPtr );

/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by 'aPtr' into a 32-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast32_t softfloat_commonNaNToF32UI( const struct commonNaN *aPtr );

/*----------------------------------------------------------------------------
| Interpreting 'uiA' and 'uiB' as the bit patterns of two 32-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result.  If either 'uiA' or 'uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast32_t
 softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB );

/*----------------------------------------------------------------------------
| The bit pattern for a default generated 64-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF64UI UINT64_C( 0x7FF8000000000000 )

/*----------------------------------------------------------------------------
| Returns true when 64-bit unsigned integer 'uiA' has the bit pattern of a
| 64-bit floating-point signaling NaN.
| Note:  This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF64UI( uiA ) ((((uiA) & UINT64_C( 0x7FF8000000000000 )) == UINT64_C( 0x7FF0000000000000 )) && ((uiA) & UINT64_C( 0x0007FFFFFFFFFFFF )))

/*----------------------------------------------------------------------------
| Assuming 'uiA' has the bit pattern of a 64-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by 'zPtr'.  If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f64UIToCommonNaN( uint_fast64_t uiA, struct commonNaN *zPtr );

/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by 'aPtr' into a 64-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast64_t softfloat_commonNaNToF64UI( const struct commonNaN *aPtr );

/*----------------------------------------------------------------------------
| Interpreting 'uiA' and 'uiB' as the bit patterns of two 64-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result.  If either 'uiA' or 'uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast64_t
 softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB );

#endif

Name	Type	Actions
internals.h	File
opt-GCC.h	File
platform.h	File
primitiveTypes.h	File
primitives.h	File
softfloat_types.h	File
specialize.h	File