mirror of
https://github.com/NVIDIA/open-gpu-kernel-modules.git
synced 2026-01-30 13:09:47 +00:00
168 lines
7.2 KiB
C
168 lines
7.2 KiB
C
|
|
/*============================================================================
|
|
|
|
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
|
|
Package, Release 3d, by John R. Hauser.
|
|
|
|
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
|
|
University of California. All rights reserved.
|
|
|
|
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.
|
|
|
|
=============================================================================*/
|
|
|
|
|
|
/*============================================================================
|
|
| Note: If SoftFloat is made available as a general library for programs to
|
|
| use, it is strongly recommended that a platform-specific version of this
|
|
| header, "softfloat.h", be created that folds in "softfloat_types.h" and that
|
|
| eliminates all dependencies on compile-time macros.
|
|
*============================================================================*/
|
|
|
|
|
|
#ifndef softfloat_h
|
|
#define softfloat_h 1
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include "softfloat_types.h"
|
|
|
|
#ifndef THREAD_LOCAL
|
|
#define THREAD_LOCAL
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| Software floating-point underflow tininess-detection mode.
|
|
*----------------------------------------------------------------------------*/
|
|
extern THREAD_LOCAL uint_fast8_t softfloat_detectTininess;
|
|
enum {
|
|
softfloat_tininess_beforeRounding = 0,
|
|
softfloat_tininess_afterRounding = 1
|
|
};
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| Software floating-point rounding mode. (Mode "odd" is supported only if
|
|
| SoftFloat is compiled with macro 'SOFTFLOAT_ROUND_ODD' defined.)
|
|
*----------------------------------------------------------------------------*/
|
|
extern THREAD_LOCAL uint_fast8_t softfloat_roundingMode;
|
|
enum {
|
|
softfloat_round_near_even = 0,
|
|
softfloat_round_minMag = 1,
|
|
softfloat_round_min = 2,
|
|
softfloat_round_max = 3,
|
|
softfloat_round_near_maxMag = 4,
|
|
softfloat_round_odd = 5
|
|
};
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| Software floating-point exception flags.
|
|
*----------------------------------------------------------------------------*/
|
|
extern THREAD_LOCAL uint_fast8_t softfloat_exceptionFlags;
|
|
enum {
|
|
softfloat_flag_inexact = 1,
|
|
softfloat_flag_underflow = 2,
|
|
softfloat_flag_overflow = 4,
|
|
softfloat_flag_infinite = 8,
|
|
softfloat_flag_invalid = 16
|
|
};
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| Routine to raise any or all of the software floating-point exception flags.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_raiseFlags( uint_fast8_t );
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| Integer-to-floating-point conversion routines.
|
|
*----------------------------------------------------------------------------*/
|
|
float32_t ui32_to_f32( uint32_t );
|
|
float64_t ui32_to_f64( uint32_t );
|
|
float32_t ui64_to_f32( uint64_t );
|
|
float64_t ui64_to_f64( uint64_t );
|
|
float32_t i32_to_f32( int32_t );
|
|
float64_t i32_to_f64( int32_t );
|
|
float32_t i64_to_f32( int64_t );
|
|
float64_t i64_to_f64( int64_t );
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| 32-bit (single-precision) floating-point operations.
|
|
*----------------------------------------------------------------------------*/
|
|
uint_fast32_t f32_to_ui32( float32_t, uint_fast8_t, bool );
|
|
uint_fast64_t f32_to_ui64( float32_t, uint_fast8_t, bool );
|
|
int_fast32_t f32_to_i32( float32_t, uint_fast8_t, bool );
|
|
int_fast64_t f32_to_i64( float32_t, uint_fast8_t, bool );
|
|
uint_fast32_t f32_to_ui32_r_minMag( float32_t, bool );
|
|
uint_fast64_t f32_to_ui64_r_minMag( float32_t, bool );
|
|
int_fast32_t f32_to_i32_r_minMag( float32_t, bool );
|
|
int_fast64_t f32_to_i64_r_minMag( float32_t, bool );
|
|
float16_t f32_to_f16( float32_t );
|
|
float64_t f32_to_f64( float32_t );
|
|
float32_t f32_roundToInt( float32_t, uint_fast8_t, bool );
|
|
float32_t f32_add( float32_t, float32_t );
|
|
float32_t f32_sub( float32_t, float32_t );
|
|
float32_t f32_mul( float32_t, float32_t );
|
|
float32_t f32_mulAdd( float32_t, float32_t, float32_t );
|
|
float32_t f32_div( float32_t, float32_t );
|
|
float32_t f32_rem( float32_t, float32_t );
|
|
float32_t f32_sqrt( float32_t );
|
|
bool f32_eq( float32_t, float32_t );
|
|
bool f32_le( float32_t, float32_t );
|
|
bool f32_lt( float32_t, float32_t );
|
|
bool f32_eq_signaling( float32_t, float32_t );
|
|
bool f32_le_quiet( float32_t, float32_t );
|
|
bool f32_lt_quiet( float32_t, float32_t );
|
|
bool f32_isSignalingNaN( float32_t );
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| 64-bit (double-precision) floating-point operations.
|
|
*----------------------------------------------------------------------------*/
|
|
uint_fast32_t f64_to_ui32( float64_t, uint_fast8_t, bool );
|
|
uint_fast64_t f64_to_ui64( float64_t, uint_fast8_t, bool );
|
|
int_fast32_t f64_to_i32( float64_t, uint_fast8_t, bool );
|
|
int_fast64_t f64_to_i64( float64_t, uint_fast8_t, bool );
|
|
uint_fast32_t f64_to_ui32_r_minMag( float64_t, bool );
|
|
uint_fast64_t f64_to_ui64_r_minMag( float64_t, bool );
|
|
int_fast32_t f64_to_i32_r_minMag( float64_t, bool );
|
|
int_fast64_t f64_to_i64_r_minMag( float64_t, bool );
|
|
float32_t f64_to_f32( float64_t );
|
|
float64_t f64_roundToInt( float64_t, uint_fast8_t, bool );
|
|
float64_t f64_add( float64_t, float64_t );
|
|
float64_t f64_sub( float64_t, float64_t );
|
|
float64_t f64_mul( float64_t, float64_t );
|
|
float64_t f64_mulAdd( float64_t, float64_t, float64_t );
|
|
float64_t f64_div( float64_t, float64_t );
|
|
float64_t f64_rem( float64_t, float64_t );
|
|
float64_t f64_sqrt( float64_t );
|
|
bool f64_eq( float64_t, float64_t );
|
|
bool f64_le( float64_t, float64_t );
|
|
bool f64_lt( float64_t, float64_t );
|
|
bool f64_eq_signaling( float64_t, float64_t );
|
|
bool f64_le_quiet( float64_t, float64_t );
|
|
bool f64_lt_quiet( float64_t, float64_t );
|
|
bool f64_isSignalingNaN( float64_t );
|
|
|
|
#endif
|
|
|