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142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/*============================================================================
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This C header 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, 2015, 2016, 2017 The Regents of the
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University of California. 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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#ifndef _SOFTFLOAT_EXTRA_H_
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#define _SOFTFLOAT_EXTRA_H_
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#include "config.h"
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#include "internals.h"
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// ======= float16 ======= //
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static __inline bool f16_sign(float16 a)
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{
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return signF16UI(a);
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}
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static __inline int8_t f16_exp(float16 a)
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{
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return expF16UI(a);
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}
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static __inline uint16_t f16_fraction(float16 a)
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{
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return fracF16UI(a);
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}
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static __inline float16 f16_denormal_to_zero(float16 a)
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{
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if (! expF16UI(a) && fracF16UI(a))
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return a & 0x8000;
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return a;
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}
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// ======= float32 ======= //
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static __inline bool f32_sign(float32 a)
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{
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return signF32UI(a);
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}
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static __inline int16_t f32_exp(float32 a)
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{
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return expF32UI(a);
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}
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static __inline uint32_t f32_fraction(float32 a)
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{
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return fracF32UI(a);
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}
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static __inline float32 f32_denormal_to_zero(float32 a)
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{
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if (! expF32UI(a) && fracF32UI(a))
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return a & 0x80000000;
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return a;
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}
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// ======= float64 ======= //
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static __inline bool f64_sign(float64 a)
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{
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return signF64UI(a);
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}
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static __inline int16_t f64_exp(float64 a)
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{
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return expF64UI(a);
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}
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static __inline uint64_t f64_fraction(float64 a)
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{
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return fracF64UI(a);
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}
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static __inline float64 f64_denormal_to_zero(float64 a)
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{
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if (! expF64UI(a) && fracF64UI(a))
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return a & ((uint64_t)(1) << 63);
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return a;
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}
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// ======= floatx80 ======= //
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#ifdef __cplusplus
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extern "C" {
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#endif
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static __inline bool extF80_isUnsupported(extFloat80_t a)
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{
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return ((a.signExp & 0x7FFF) && !(a.signif & BX_CONST64(0x8000000000000000)));
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}
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static __inline bool extF80_sign(extFloat80_t a)
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{
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return signExtF80UI64(a.signExp);
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}
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static __inline int16_t extF80_exp(extFloat80_t a)
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{
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return expExtF80UI64(a.signExp);
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}
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static __inline uint64_t extF80_fraction(extFloat80_t a)
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{
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return a.signif;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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