7c52865d1b
This changeset updates the external library to git revision 52b6190b4e. This update includes changes that fix compilation errors on old gcc versions and fixes to test a case that affect ICC.
95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
/*
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* Copyright (c) 2013, Andreas Sandberg
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* All rights reserved.
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*
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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
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FPBITS_H
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#define _FPBITS_H
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#include <stdint.h>
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#define FP80_FRAC_BITS 63
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#define FP80_INT_BIT 0x8000000000000000ULL
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#define FP80_QNAN_BIT 0x4000000000000000ULL
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#define FP80_FRAC_MASK 0x7fffffffffffffffULL
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#define FP80_EXP_MASK 0x7fff
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#define FP80_SIGN_BIT 0x8000
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#define FP80_EXP_BIAS 0x3fff
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#define FP80_EXP_SPECIAL 0x7fff
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#define FP80_FRAC_SNAN 0x3fffffffffffffffULL
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#define FP80_FRAC_QNAN 0x7fffffffffffffffULL
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#define FP80_FRAC_QNANI 0x4000000000000000ULL
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#define FP64_EXP_SHIFT 52
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#define FP64_FRAC_BITS 52
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#define FP64_SIGN_BIT 0x8000000000000000ULL
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#define FP64_EXP_MASK 0x7ff0000000000000ULL
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#define FP64_FRAC_MASK 0x000fffffffffffffULL
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#define FP64_EXP_BIAS 0x3ff
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#define FP64_EXP_SPECIAL 0x7ff
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#define FP64_FRAC_SNAN 0x0007ffffffffffffULL
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#define FP64_FRAC_QNAN 0x000fffffffffffffULL
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#define FP64_FRAC_QNANI 0x0008000000000000ULL
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#define BUILD_IFP64(sign, frac, exp) \
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((sign) ? FP64_SIGN_BIT : 0) | \
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(((uint64_t)(exp) << FP64_EXP_SHIFT) & FP64_EXP_MASK) | \
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((frac) & FP64_FRAC_MASK)
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#define BUILD_FP64(sign, frac, exp) \
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{ .bits = BUILD_IFP64(sign, frac, exp) }
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#define BUILD_FP80_SE(sign, exp) \
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((sign) ? FP80_SIGN_BIT : 0) | \
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((exp) & FP80_EXP_MASK)
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#define BUILD_FP80_FI(frac, exp) \
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((exp) ? FP80_INT_BIT : 0) | \
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((frac) & FP80_FRAC_MASK)
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#define BUILD_FP80(sign, frac, exp) \
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{ \
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.repr.se = BUILD_FP80_SE(sign, exp), \
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.repr.fi = BUILD_FP80_FI(frac, exp) \
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}
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#define FP80_FRAC(fp80) \
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(fp80.repr.fi & FP80_FRAC_MASK)
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#define FP80_EXP(fp80) \
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(fp80.repr.se & FP80_EXP_MASK)
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#define FP64_FRAC(fp64) \
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(fp64.bits & FP64_FRAC_MASK)
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#define FP64_EXP(fp80) \
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((fp64.bits & FP64_EXP_MASK) >> FP64_EXP_SHIFT)
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#endif
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