Upgrade to softfloat3e.
This should solve licensing problems as well.
This commit is contained in:
TC1995
280
src/cpu/softfloat3e/specialize.h
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280
src/cpu/softfloat3e/specialize.h
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/*============================================================================
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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, 2018 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 _SPECIALIZE_H_
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#define _SPECIALIZE_H_
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#include <stdbool.h>
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#include <stdint.h>
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#include "softfloat.h"
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/*----------------------------------------------------------------------------
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| The values to return on conversions to 32-bit integer formats that raise an
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| invalid exception.
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*----------------------------------------------------------------------------*/
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#define ui32_fromPosOverflow 0xFFFFFFFF
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#define ui32_fromNegOverflow 0xFFFFFFFF
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#define ui32_fromNaN 0xFFFFFFFF
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#define i32_fromPosOverflow (-0x7FFFFFFF - 1)
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#define i32_fromNegOverflow (-0x7FFFFFFF - 1)
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#define i32_fromNaN (-0x7FFFFFFF - 1)
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/*----------------------------------------------------------------------------
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| The values to return on conversions to 64-bit integer formats that raise an
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| invalid exception.
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*----------------------------------------------------------------------------*/
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#define ui64_fromPosOverflow UINT64_C(0xFFFFFFFFFFFFFFFF)
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#define ui64_fromNegOverflow UINT64_C(0xFFFFFFFFFFFFFFFF)
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#define ui64_fromNaN UINT64_C(0xFFFFFFFFFFFFFFFF)
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#define i64_fromPosOverflow (-INT64_C(0x7FFFFFFFFFFFFFFF) - 1)
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#define i64_fromNegOverflow (-INT64_C(0x7FFFFFFFFFFFFFFF) - 1)
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#define i64_fromNaN (-INT64_C(0x7FFFFFFFFFFFFFFF) - 1)
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/*----------------------------------------------------------------------------
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| "Common NaN" structure, used to transfer NaN representations from one format
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| to another.
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*----------------------------------------------------------------------------*/
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struct commonNaN {
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bool sign;
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uint64_t v0, v64;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*----------------------------------------------------------------------------
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| The bit pattern for a default generated 16-bit floating-point NaN.
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*----------------------------------------------------------------------------*/
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#define defaultNaNF16UI 0xFE00
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/*----------------------------------------------------------------------------
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| Returns true when 16-bit unsigned integer 'uiA' has the bit pattern of a
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| 16-bit floating-point signaling NaN.
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| Note: This macro evaluates its argument more than once.
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*----------------------------------------------------------------------------*/
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#define softfloat_isSigNaNF16UI(uiA) ((((uiA) & 0x7E00) == 0x7C00) && ((uiA) & 0x01FF))
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/*----------------------------------------------------------------------------
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| Assuming 'uiA' has the bit pattern of a 16-bit floating-point NaN, converts
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| this NaN to the common NaN form, and stores the resulting common NaN at the
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| location pointed to by 'zPtr'. If the NaN is a signaling NaN, the invalid
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| exception is raised.
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*----------------------------------------------------------------------------*/
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void softfloat_f16UIToCommonNaN(uint16_t uiA, struct commonNaN *zPtr, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| Converts the common NaN pointed to by 'aPtr' into a 16-bit floating-point
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| NaN, and returns the bit pattern of this value as an unsigned integer.
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*----------------------------------------------------------------------------*/
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uint16_t softfloat_commonNaNToF16UI(const struct commonNaN *aPtr);
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/*----------------------------------------------------------------------------
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| Interpreting 'uiA' and 'uiB' as the bit patterns of two 16-bit floating-
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| point values, at least one of which is a NaN, returns the bit pattern of
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| the combined NaN result. If either 'uiA' or 'uiB' has the pattern of a
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| signaling NaN, the invalid exception is raised.
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*----------------------------------------------------------------------------*/
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uint16_t
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softfloat_propagateNaNF16UI(uint16_t uiA, uint16_t uiB, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| The bit pattern for a default generated 32-bit floating-point NaN.
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*----------------------------------------------------------------------------*/
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#define defaultNaNF32UI 0xFFC00000
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/*----------------------------------------------------------------------------
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| Returns true when 32-bit unsigned integer 'uiA' has the bit pattern of a
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| 32-bit floating-point signaling NaN.
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| Note: This macro evaluates its argument more than once.
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*----------------------------------------------------------------------------*/
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#define softfloat_isSigNaNF32UI(uiA) ((((uiA) & 0x7FC00000) == 0x7F800000) && ((uiA) & 0x003FFFFF))
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/*----------------------------------------------------------------------------
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| Assuming 'uiA' has the bit pattern of a 32-bit floating-point NaN, converts
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| this NaN to the common NaN form, and stores the resulting common NaN at the
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| location pointed to by 'zPtr'. If the NaN is a signaling NaN, the invalid
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| exception is raised.
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*----------------------------------------------------------------------------*/
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void softfloat_f32UIToCommonNaN(uint32_t uiA, struct commonNaN *zPtr, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| Converts the common NaN pointed to by 'aPtr' into a 32-bit floating-point
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| NaN, and returns the bit pattern of this value as an unsigned integer.
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*----------------------------------------------------------------------------*/
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uint32_t softfloat_commonNaNToF32UI(const struct commonNaN *aPtr);
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/*----------------------------------------------------------------------------
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| Interpreting 'uiA' and 'uiB' as the bit patterns of two 32-bit floating-
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| point values, at least one of which is a NaN, returns the bit pattern of
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| the combined NaN result. If either 'uiA' or 'uiB' has the pattern of a
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| signaling NaN, the invalid exception is raised.
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*----------------------------------------------------------------------------*/
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uint32_t
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softfloat_propagateNaNF32UI(uint32_t uiA, uint32_t uiB, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| The bit pattern for a default generated 64-bit floating-point NaN.
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*----------------------------------------------------------------------------*/
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#define defaultNaNF64UI UINT64_C(0xFFF8000000000000)
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/*----------------------------------------------------------------------------
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| Returns true when 64-bit unsigned integer 'uiA' has the bit pattern of a
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| 64-bit floating-point signaling NaN.
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| Note: This macro evaluates its argument more than once.
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*----------------------------------------------------------------------------*/
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#define softfloat_isSigNaNF64UI(uiA) ((((uiA) & UINT64_C(0x7FF8000000000000)) == UINT64_C(0x7FF0000000000000)) && ((uiA) & UINT64_C(0x0007FFFFFFFFFFFF)))
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/*----------------------------------------------------------------------------
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| Assuming 'uiA' has the bit pattern of a 64-bit floating-point NaN, converts
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| this NaN to the common NaN form, and stores the resulting common NaN at the
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| location pointed to by 'zPtr'. If the NaN is a signaling NaN, the invalid
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| exception is raised.
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*----------------------------------------------------------------------------*/
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void softfloat_f64UIToCommonNaN(uint64_t uiA, struct commonNaN *zPtr, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| Converts the common NaN pointed to by 'aPtr' into a 64-bit floating-point
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| NaN, and returns the bit pattern of this value as an unsigned integer.
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*----------------------------------------------------------------------------*/
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uint64_t softfloat_commonNaNToF64UI(const struct commonNaN *aPtr);
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/*----------------------------------------------------------------------------
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| Interpreting 'uiA' and 'uiB' as the bit patterns of two 64-bit floating-
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| point values, at least one of which is a NaN, returns the bit pattern of
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| the combined NaN result. If either 'uiA' or 'uiB' has the pattern of a
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| signaling NaN, the invalid exception is raised.
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*----------------------------------------------------------------------------*/
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uint64_t
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softfloat_propagateNaNF64UI(uint64_t uiA, uint64_t uiB, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| The bit pattern for a default generated 80-bit extended floating-point NaN.
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*----------------------------------------------------------------------------*/
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#define defaultNaNExtF80UI64 0xFFFF
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#define defaultNaNExtF80UI0 UINT64_C(0xC000000000000000)
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/*----------------------------------------------------------------------------
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| Returns true when the 80-bit unsigned integer formed from concatenating
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| 16-bit 'uiA64' and 64-bit 'uiA0' has the bit pattern of an 80-bit extended
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| floating-point signaling NaN.
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| Note: This macro evaluates its arguments more than once.
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*----------------------------------------------------------------------------*/
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#define softfloat_isSigNaNExtF80UI(uiA64, uiA0) ((((uiA64) & 0x7FFF) == 0x7FFF) && ! ((uiA0) & UINT64_C(0x4000000000000000)) && ((uiA0) & UINT64_C(0x3FFFFFFFFFFFFFFF)))
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/*----------------------------------------------------------------------------
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| Assuming the unsigned integer formed from concatenating 'uiA64' and 'uiA0'
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| has the bit pattern of an 80-bit extended floating-point NaN, converts
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| this NaN to the common NaN form, and stores the resulting common NaN at the
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| location pointed to by 'zPtr'. If the NaN is a signaling NaN, the invalid
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| exception is raised.
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*----------------------------------------------------------------------------*/
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void softfloat_extF80UIToCommonNaN(uint16_t uiA64, uint64_t uiA0, struct commonNaN *zPtr, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| Converts the common NaN pointed to by 'aPtr' into an 80-bit extended
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| floating-point NaN, and returns the bit pattern of this value as an unsigned
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| integer.
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*----------------------------------------------------------------------------*/
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struct uint128 softfloat_commonNaNToExtF80UI(const struct commonNaN *aPtr);
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/*----------------------------------------------------------------------------
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| Interpreting the unsigned integer formed from concatenating 'uiA64' and
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| 'uiA0' as an 80-bit extended floating-point value, and likewise interpreting
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| the unsigned integer formed from concatenating 'uiB64' and 'uiB0' as another
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| 80-bit extended floating-point value, and assuming at least on of these
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| floating-point values is a NaN, returns the bit pattern of the combined NaN
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| result. If either original floating-point value is a signaling NaN, the
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| invalid exception is raised.
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*----------------------------------------------------------------------------*/
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extFloat80_t
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softfloat_propagateNaNExtF80UI(
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uint16_t uiA64,
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uint64_t uiA0,
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uint16_t uiB64,
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uint64_t uiB0,
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struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| The bit pattern for a default generated 128-bit floating-point NaN.
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*----------------------------------------------------------------------------*/
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#define defaultNaNF128UI64 UINT64_C(0xFFFF800000000000)
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#define defaultNaNF128UI0 UINT64_C(0)
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/*----------------------------------------------------------------------------
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| Returns true when the 128-bit unsigned integer formed from concatenating
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| 64-bit 'uiA64' and 64-bit 'uiA0' has the bit pattern of a 128-bit floating-
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| point signaling NaN.
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| Note: This macro evaluates its arguments more than once.
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*----------------------------------------------------------------------------*/
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#define softfloat_isSigNaNF128UI(uiA64, uiA0) ((((uiA64) & UINT64_C(0x7FFF800000000000)) == UINT64_C(0x7FFF000000000000)) && ((uiA0) || ((uiA64) & UINT64_C(0x00007FFFFFFFFFFF))))
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/*----------------------------------------------------------------------------
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| Assuming the unsigned integer formed from concatenating 'uiA64' and 'uiA0'
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| has the bit pattern of a 128-bit floating-point NaN, converts this NaN to
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| the common NaN form, and stores the resulting common NaN at the location
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| pointed to by 'zPtr'. If the NaN is a signaling NaN, the invalid exception
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| is raised.
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*----------------------------------------------------------------------------*/
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void softfloat_f128UIToCommonNaN(uint64_t uiA64, uint64_t uiA0, struct commonNaN *zPtr, struct softfloat_status_t *status);
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/*----------------------------------------------------------------------------
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| Converts the common NaN pointed to by 'aPtr' into a 128-bit floating-point
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| NaN, and returns the bit pattern of this value as an unsigned integer.
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*----------------------------------------------------------------------------*/
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struct uint128 softfloat_commonNaNToF128UI(const struct commonNaN *);
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/*----------------------------------------------------------------------------
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| Interpreting the unsigned integer formed from concatenating 'uiA64' and
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| 'uiA0' as a 128-bit floating-point value, and likewise interpreting the
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| unsigned integer formed from concatenating 'uiB64' and 'uiB0' as another
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| 128-bit floating-point value, and assuming at least on of these floating-
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| point values is a NaN, returns the bit pattern of the combined NaN result.
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| If either original floating-point value is a signaling NaN, the invalid
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| exception is raised.
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*----------------------------------------------------------------------------*/
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struct uint128
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softfloat_propagateNaNF128UI(
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uint64_t uiA64,
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uint64_t uiA0,
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uint64_t uiB64,
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uint64_t uiB0,
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struct softfloat_status_t *status
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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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