1031 lines
51 KiB
C
1031 lines
51 KiB
C
|
|
/*============================================================================
|
|
|
|
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
|
|
Package, Release 3e, 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.
|
|
|
|
=============================================================================*/
|
|
|
|
#ifndef primitives_h
|
|
#define primitives_h 1
|
|
|
|
#include "primitiveTypes.h"
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#ifndef softfloat_shortShiftRightJam64
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts 'a' right by the number of bits given in 'dist', which must be in
|
|
| the range 1 to 63. If any nonzero bits are shifted off, they are "jammed"
|
|
| into the least-significant bit of the shifted value by setting the least-
|
|
| significant bit to 1. This shifted-and-jammed value is returned.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
uint64_t softfloat_shortShiftRightJam64(uint64_t a, uint_fast8_t dist) { return a >> dist | ((a & (((uint_fast64_t)1 << dist) - 1)) != 0); }
|
|
#else
|
|
uint64_t softfloat_shortShiftRightJam64(uint64_t a, uint_fast8_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam32
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts 'a' right by the number of bits given in 'dist', which must not
|
|
| be zero. If any nonzero bits are shifted off, they are "jammed" into the
|
|
| least-significant bit of the shifted value by setting the least-significant
|
|
| bit to 1. This shifted-and-jammed value is returned.
|
|
| The value of 'dist' can be arbitrarily large. In particular, if 'dist' is
|
|
| greater than 32, the result will be either 0 or 1, depending on whether 'a'
|
|
| is zero or nonzero.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE uint32_t softfloat_shiftRightJam32(uint32_t a, uint_fast16_t dist) {
|
|
return (dist < 31) ? a >> dist | ((uint32_t)(a << (-dist & 31)) != 0) : (a != 0);
|
|
}
|
|
#else
|
|
uint32_t softfloat_shiftRightJam32(uint32_t a, uint_fast16_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam64
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts 'a' right by the number of bits given in 'dist', which must not
|
|
| be zero. If any nonzero bits are shifted off, they are "jammed" into the
|
|
| least-significant bit of the shifted value by setting the least-significant
|
|
| bit to 1. This shifted-and-jammed value is returned.
|
|
| The value of 'dist' can be arbitrarily large. In particular, if 'dist' is
|
|
| greater than 64, the result will be either 0 or 1, depending on whether 'a'
|
|
| is zero or nonzero.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (3 <= INLINE_LEVEL)
|
|
INLINE uint64_t softfloat_shiftRightJam64(uint64_t a, uint_fast32_t dist) {
|
|
return (dist < 63) ? a >> dist | ((uint64_t)(a << (-dist & 63)) != 0) : (a != 0);
|
|
}
|
|
#else
|
|
uint64_t softfloat_shiftRightJam64(uint64_t a, uint_fast32_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| A constant table that translates an 8-bit unsigned integer (the array index)
|
|
| into the number of leading 0 bits before the most-significant 1 of that
|
|
| integer. For integer zero (index 0), the corresponding table element is 8.
|
|
*----------------------------------------------------------------------------*/
|
|
extern const uint_least8_t softfloat_countLeadingZeros8[256];
|
|
|
|
#ifndef softfloat_countLeadingZeros16
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the number of leading 0 bits before the most-significant 1 bit of
|
|
| 'a'. If 'a' is zero, 16 is returned.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE uint_fast8_t softfloat_countLeadingZeros16(uint16_t a) {
|
|
uint_fast8_t count = 8;
|
|
if(0x100 <= a) {
|
|
count = 0;
|
|
a >>= 8;
|
|
}
|
|
count += softfloat_countLeadingZeros8[a];
|
|
return count;
|
|
}
|
|
#else
|
|
uint_fast8_t softfloat_countLeadingZeros16(uint16_t a);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_countLeadingZeros32
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the number of leading 0 bits before the most-significant 1 bit of
|
|
| 'a'. If 'a' is zero, 32 is returned.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (3 <= INLINE_LEVEL)
|
|
INLINE uint_fast8_t softfloat_countLeadingZeros32(uint32_t a) {
|
|
uint_fast8_t count = 0;
|
|
if(a < 0x10000) {
|
|
count = 16;
|
|
a <<= 16;
|
|
}
|
|
if(a < 0x1000000) {
|
|
count += 8;
|
|
a <<= 8;
|
|
}
|
|
count += softfloat_countLeadingZeros8[a >> 24];
|
|
return count;
|
|
}
|
|
#else
|
|
uint_fast8_t softfloat_countLeadingZeros32(uint32_t a);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_countLeadingZeros64
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the number of leading 0 bits before the most-significant 1 bit of
|
|
| 'a'. If 'a' is zero, 64 is returned.
|
|
*----------------------------------------------------------------------------*/
|
|
uint_fast8_t softfloat_countLeadingZeros64(uint64_t a);
|
|
#endif
|
|
|
|
extern const uint16_t softfloat_approxRecip_1k0s[16];
|
|
extern const uint16_t softfloat_approxRecip_1k1s[16];
|
|
|
|
#ifndef softfloat_approxRecip32_1
|
|
/*----------------------------------------------------------------------------
|
|
| Returns an approximation to the reciprocal of the number represented by 'a',
|
|
| where 'a' is interpreted as an unsigned fixed-point number with one integer
|
|
| bit and 31 fraction bits. The 'a' input must be "normalized", meaning that
|
|
| its most-significant bit (bit 31) must be 1. Thus, if A is the value of
|
|
| the fixed-point interpretation of 'a', then 1 <= A < 2. The returned value
|
|
| is interpreted as a pure unsigned fraction, having no integer bits and 32
|
|
| fraction bits. The approximation returned is never greater than the true
|
|
| reciprocal 1/A, and it differs from the true reciprocal by at most 2.006 ulp
|
|
| (units in the last place).
|
|
*----------------------------------------------------------------------------*/
|
|
#ifdef SOFTFLOAT_FAST_DIV64TO32
|
|
#define softfloat_approxRecip32_1(a) ((uint32_t)(UINT64_C(0x7FFFFFFFFFFFFFFF) / (uint32_t)(a)))
|
|
#else
|
|
uint32_t softfloat_approxRecip32_1(uint32_t a);
|
|
#endif
|
|
#endif
|
|
|
|
extern const uint16_t softfloat_approxRecipSqrt_1k0s[16];
|
|
extern const uint16_t softfloat_approxRecipSqrt_1k1s[16];
|
|
|
|
#ifndef softfloat_approxRecipSqrt32_1
|
|
/*----------------------------------------------------------------------------
|
|
| Returns an approximation to the reciprocal of the square root of the number
|
|
| represented by 'a', where 'a' is interpreted as an unsigned fixed-point
|
|
| number either with one integer bit and 31 fraction bits or with two integer
|
|
| bits and 30 fraction bits. The format of 'a' is determined by 'oddExpA',
|
|
| which must be either 0 or 1. If 'oddExpA' is 1, 'a' is interpreted as
|
|
| having one integer bit, and if 'oddExpA' is 0, 'a' is interpreted as having
|
|
| two integer bits. The 'a' input must be "normalized", meaning that its
|
|
| most-significant bit (bit 31) must be 1. Thus, if A is the value of the
|
|
| fixed-point interpretation of 'a', it follows that 1 <= A < 2 when 'oddExpA'
|
|
| is 1, and 2 <= A < 4 when 'oddExpA' is 0.
|
|
| The returned value is interpreted as a pure unsigned fraction, having
|
|
| no integer bits and 32 fraction bits. The approximation returned is never
|
|
| greater than the true reciprocal 1/sqrt(A), and it differs from the true
|
|
| reciprocal by at most 2.06 ulp (units in the last place). The approximation
|
|
| returned is also always within the range 0.5 to 1; thus, the most-
|
|
| significant bit of the result is always set.
|
|
*----------------------------------------------------------------------------*/
|
|
uint32_t softfloat_approxRecipSqrt32_1(unsigned int oddExpA, uint32_t a);
|
|
#endif
|
|
|
|
#ifdef SOFTFLOAT_FAST_INT64
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| The following functions are needed only when 'SOFTFLOAT_FAST_INT64' is
|
|
| defined.
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
#ifndef softfloat_eq128
|
|
/*----------------------------------------------------------------------------
|
|
| Returns true if the 128-bit unsigned integer formed by concatenating 'a64'
|
|
| and 'a0' is equal to the 128-bit unsigned integer formed by concatenating
|
|
| 'b64' and 'b0'.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (1 <= INLINE_LEVEL)
|
|
INLINE
|
|
bool softfloat_eq128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0) { return (a64 == b64) && (a0 == b0); }
|
|
#else
|
|
bool softfloat_eq128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_le128
|
|
/*----------------------------------------------------------------------------
|
|
| Returns true if the 128-bit unsigned integer formed by concatenating 'a64'
|
|
| and 'a0' is less than or equal to the 128-bit unsigned integer formed by
|
|
| concatenating 'b64' and 'b0'.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
bool softfloat_le128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0) { return (a64 < b64) || ((a64 == b64) && (a0 <= b0)); }
|
|
#else
|
|
bool softfloat_le128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_lt128
|
|
/*----------------------------------------------------------------------------
|
|
| Returns true if the 128-bit unsigned integer formed by concatenating 'a64'
|
|
| and 'a0' is less than the 128-bit unsigned integer formed by concatenating
|
|
| 'b64' and 'b0'.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
bool softfloat_lt128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0) { return (a64 < b64) || ((a64 == b64) && (a0 < b0)); }
|
|
#else
|
|
bool softfloat_lt128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftLeft128
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the 128 bits formed by concatenating 'a64' and 'a0' left by the
|
|
| number of bits given in 'dist', which must be in the range 1 to 63.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint128 softfloat_shortShiftLeft128(uint64_t a64, uint64_t a0, uint_fast8_t dist) {
|
|
struct uint128 z;
|
|
z.v64 = a64 << dist | a0 >> (-dist & 63);
|
|
z.v0 = a0 << dist;
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128 softfloat_shortShiftLeft128(uint64_t a64, uint64_t a0, uint_fast8_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRight128
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the 128 bits formed by concatenating 'a64' and 'a0' right by the
|
|
| number of bits given in 'dist', which must be in the range 1 to 63.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint128 softfloat_shortShiftRight128(uint64_t a64, uint64_t a0, uint_fast8_t dist) {
|
|
struct uint128 z;
|
|
z.v64 = a64 >> dist;
|
|
z.v0 = a64 << (-dist & 63) | a0 >> dist;
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128 softfloat_shortShiftRight128(uint64_t a64, uint64_t a0, uint_fast8_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRightJam64Extra
|
|
/*----------------------------------------------------------------------------
|
|
| This function is the same as 'softfloat_shiftRightJam64Extra' (below),
|
|
| except that 'dist' must be in the range 1 to 63.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint64_extra softfloat_shortShiftRightJam64Extra(uint64_t a, uint64_t extra, uint_fast8_t dist) {
|
|
struct uint64_extra z;
|
|
z.v = a >> dist;
|
|
z.extra = a << (-dist & 63) | (extra != 0);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint64_extra softfloat_shortShiftRightJam64Extra(uint64_t a, uint64_t extra, uint_fast8_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRightJam128
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the 128 bits formed by concatenating 'a64' and 'a0' right by the
|
|
| number of bits given in 'dist', which must be in the range 1 to 63. If any
|
|
| nonzero bits are shifted off, they are "jammed" into the least-significant
|
|
| bit of the shifted value by setting the least-significant bit to 1. This
|
|
| shifted-and-jammed value is returned.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (3 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint128 softfloat_shortShiftRightJam128(uint64_t a64, uint64_t a0, uint_fast8_t dist) {
|
|
uint_fast8_t negDist = -dist;
|
|
struct uint128 z;
|
|
z.v64 = a64 >> dist;
|
|
z.v0 = a64 << (negDist & 63) | a0 >> dist | ((uint64_t)(a0 << (negDist & 63)) != 0);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128 softfloat_shortShiftRightJam128(uint64_t a64, uint64_t a0, uint_fast8_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRightJam128Extra
|
|
/*----------------------------------------------------------------------------
|
|
| This function is the same as 'softfloat_shiftRightJam128Extra' (below),
|
|
| except that 'dist' must be in the range 1 to 63.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (3 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint128_extra softfloat_shortShiftRightJam128Extra(uint64_t a64, uint64_t a0, uint64_t extra, uint_fast8_t dist) {
|
|
uint_fast8_t negDist = -dist;
|
|
struct uint128_extra z;
|
|
z.v.v64 = a64 >> dist;
|
|
z.v.v0 = a64 << (negDist & 63) | a0 >> dist;
|
|
z.extra = a0 << (negDist & 63) | (extra != 0);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128_extra softfloat_shortShiftRightJam128Extra(uint64_t a64, uint64_t a0, uint64_t extra, uint_fast8_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam64Extra
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the 128 bits formed by concatenating 'a' and 'extra' right by 64
|
|
| _plus_ the number of bits given in 'dist', which must not be zero. This
|
|
| shifted value is at most 64 nonzero bits and is returned in the 'v' field
|
|
| of the 'struct uint64_extra' result. The 64-bit 'extra' field of the result
|
|
| contains a value formed as follows from the bits that were shifted off: The
|
|
| _last_ bit shifted off is the most-significant bit of the 'extra' field, and
|
|
| the other 63 bits of the 'extra' field are all zero if and only if _all_but_
|
|
| _the_last_ bits shifted off were all zero.
|
|
| (This function makes more sense if 'a' and 'extra' are considered to form
|
|
| an unsigned fixed-point number with binary point between 'a' and 'extra'.
|
|
| This fixed-point value is shifted right by the number of bits given in
|
|
| 'dist', and the integer part of this shifted value is returned in the 'v'
|
|
| field of the result. The fractional part of the shifted value is modified
|
|
| as described above and returned in the 'extra' field of the result.)
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (4 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint64_extra softfloat_shiftRightJam64Extra(uint64_t a, uint64_t extra, uint_fast32_t dist) {
|
|
struct uint64_extra z;
|
|
if(dist < 64) {
|
|
z.v = a >> dist;
|
|
z.extra = a << (-dist & 63);
|
|
} else {
|
|
z.v = 0;
|
|
z.extra = (dist == 64) ? a : (a != 0);
|
|
}
|
|
z.extra |= (extra != 0);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint64_extra softfloat_shiftRightJam64Extra(uint64_t a, uint64_t extra, uint_fast32_t dist);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam128
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the 128 bits formed by concatenating 'a64' and 'a0' right by the
|
|
| number of bits given in 'dist', which must not be zero. If any nonzero bits
|
|
| are shifted off, they are "jammed" into the least-significant bit of the
|
|
| shifted value by setting the least-significant bit to 1. This shifted-and-
|
|
| jammed value is returned.
|
|
| The value of 'dist' can be arbitrarily large. In particular, if 'dist' is
|
|
| greater than 128, the result will be either 0 or 1, depending on whether the
|
|
| original 128 bits are all zeros.
|
|
*----------------------------------------------------------------------------*/
|
|
struct uint128 softfloat_shiftRightJam128(uint64_t a64, uint64_t a0, uint_fast32_t dist);
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam128Extra
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the 192 bits formed by concatenating 'a64', 'a0', and 'extra' right
|
|
| by 64 _plus_ the number of bits given in 'dist', which must not be zero.
|
|
| This shifted value is at most 128 nonzero bits and is returned in the 'v'
|
|
| field of the 'struct uint128_extra' result. The 64-bit 'extra' field of the
|
|
| result contains a value formed as follows from the bits that were shifted
|
|
| off: The _last_ bit shifted off is the most-significant bit of the 'extra'
|
|
| field, and the other 63 bits of the 'extra' field are all zero if and only
|
|
| if _all_but_the_last_ bits shifted off were all zero.
|
|
| (This function makes more sense if 'a64', 'a0', and 'extra' are considered
|
|
| to form an unsigned fixed-point number with binary point between 'a0' and
|
|
| 'extra'. This fixed-point value is shifted right by the number of bits
|
|
| given in 'dist', and the integer part of this shifted value is returned
|
|
| in the 'v' field of the result. The fractional part of the shifted value
|
|
| is modified as described above and returned in the 'extra' field of the
|
|
| result.)
|
|
*----------------------------------------------------------------------------*/
|
|
struct uint128_extra softfloat_shiftRightJam128Extra(uint64_t a64, uint64_t a0, uint64_t extra, uint_fast32_t dist);
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam256M
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the 256-bit unsigned integer pointed to by 'aPtr' right by the number
|
|
| of bits given in 'dist', which must not be zero. If any nonzero bits are
|
|
| shifted off, they are "jammed" into the least-significant bit of the shifted
|
|
| value by setting the least-significant bit to 1. This shifted-and-jammed
|
|
| value is stored at the location pointed to by 'zPtr'. Each of 'aPtr' and
|
|
| 'zPtr' points to an array of four 64-bit elements that concatenate in the
|
|
| platform's normal endian order to form a 256-bit integer.
|
|
| The value of 'dist' can be arbitrarily large. In particular, if 'dist'
|
|
| is greater than 256, the stored result will be either 0 or 1, depending on
|
|
| whether the original 256 bits are all zeros.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_shiftRightJam256M(const uint64_t* aPtr, uint_fast32_t dist, uint64_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_add128
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the sum of the 128-bit integer formed by concatenating 'a64' and
|
|
| 'a0' and the 128-bit integer formed by concatenating 'b64' and 'b0'. The
|
|
| addition is modulo 2^128, so any carry out is lost.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint128 softfloat_add128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0) {
|
|
struct uint128 z;
|
|
z.v0 = a0 + b0;
|
|
z.v64 = a64 + b64 + (z.v0 < a0);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128 softfloat_add128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_add256M
|
|
/*----------------------------------------------------------------------------
|
|
| Adds the two 256-bit integers pointed to by 'aPtr' and 'bPtr'. The addition
|
|
| is modulo 2^256, so any carry out is lost. The sum is stored at the
|
|
| location pointed to by 'zPtr'. Each of 'aPtr', 'bPtr', and 'zPtr' points to
|
|
| an array of four 64-bit elements that concatenate in the platform's normal
|
|
| endian order to form a 256-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_add256M(const uint64_t* aPtr, const uint64_t* bPtr, uint64_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_sub128
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the difference of the 128-bit integer formed by concatenating 'a64'
|
|
| and 'a0' and the 128-bit integer formed by concatenating 'b64' and 'b0'.
|
|
| The subtraction is modulo 2^128, so any borrow out (carry out) is lost.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint128 softfloat_sub128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0) {
|
|
struct uint128 z;
|
|
z.v0 = a0 - b0;
|
|
z.v64 = a64 - b64;
|
|
z.v64 -= (a0 < b0);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128 softfloat_sub128(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_sub256M
|
|
/*----------------------------------------------------------------------------
|
|
| Subtracts the 256-bit integer pointed to by 'bPtr' from the 256-bit integer
|
|
| pointed to by 'aPtr'. The addition is modulo 2^256, so any borrow out
|
|
| (carry out) is lost. The difference is stored at the location pointed to
|
|
| by 'zPtr'. Each of 'aPtr', 'bPtr', and 'zPtr' points to an array of four
|
|
| 64-bit elements that concatenate in the platform's normal endian order to
|
|
| form a 256-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_sub256M(const uint64_t* aPtr, const uint64_t* bPtr, uint64_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_mul64ByShifted32To128
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the 128-bit product of 'a', 'b', and 2^32.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (3 <= INLINE_LEVEL)
|
|
INLINE struct uint128 softfloat_mul64ByShifted32To128(uint64_t a, uint32_t b) {
|
|
uint_fast64_t mid;
|
|
struct uint128 z;
|
|
mid = (uint_fast64_t)(uint32_t)a * b;
|
|
z.v0 = mid << 32;
|
|
z.v64 = (uint_fast64_t)(uint32_t)(a >> 32) * b + (mid >> 32);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128 softfloat_mul64ByShifted32To128(uint64_t a, uint32_t b);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_mul64To128
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the 128-bit product of 'a' and 'b'.
|
|
*----------------------------------------------------------------------------*/
|
|
struct uint128 softfloat_mul64To128(uint64_t a, uint64_t b);
|
|
#endif
|
|
|
|
#ifndef softfloat_mul128By32
|
|
/*----------------------------------------------------------------------------
|
|
| Returns the product of the 128-bit integer formed by concatenating 'a64' and
|
|
| 'a0', multiplied by 'b'. The multiplication is modulo 2^128; any overflow
|
|
| bits are discarded.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (4 <= INLINE_LEVEL)
|
|
INLINE
|
|
struct uint128 softfloat_mul128By32(uint64_t a64, uint64_t a0, uint32_t b) {
|
|
struct uint128 z;
|
|
uint_fast64_t mid;
|
|
uint_fast32_t carry;
|
|
z.v0 = a0 * b;
|
|
mid = (uint_fast64_t)(uint32_t)(a0 >> 32) * b;
|
|
carry = (uint32_t)((uint_fast32_t)(z.v0 >> 32) - (uint_fast32_t)mid);
|
|
z.v64 = a64 * b + (uint_fast32_t)((mid + carry) >> 32);
|
|
return z;
|
|
}
|
|
#else
|
|
struct uint128 softfloat_mul128By32(uint64_t a64, uint64_t a0, uint32_t b);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_mul128To256M
|
|
/*----------------------------------------------------------------------------
|
|
| Multiplies the 128-bit unsigned integer formed by concatenating 'a64' and
|
|
| 'a0' by the 128-bit unsigned integer formed by concatenating 'b64' and
|
|
| 'b0'. The 256-bit product is stored at the location pointed to by 'zPtr'.
|
|
| Argument 'zPtr' points to an array of four 64-bit elements that concatenate
|
|
| in the platform's normal endian order to form a 256-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_mul128To256M(uint64_t a64, uint64_t a0, uint64_t b64, uint64_t b0, uint64_t* zPtr);
|
|
#endif
|
|
|
|
#else
|
|
|
|
/*----------------------------------------------------------------------------
|
|
| The following functions are needed only when 'SOFTFLOAT_FAST_INT64' is not
|
|
| defined.
|
|
*----------------------------------------------------------------------------*/
|
|
|
|
#ifndef softfloat_compare96M
|
|
/*----------------------------------------------------------------------------
|
|
| Compares the two 96-bit unsigned integers pointed to by 'aPtr' and 'bPtr'.
|
|
| Returns -1 if the first integer (A) is less than the second (B); returns 0
|
|
| if the two integers are equal; and returns +1 if the first integer (A)
|
|
| is greater than the second (B). (The result is thus the signum of A - B.)
|
|
| Each of 'aPtr' and 'bPtr' points to an array of three 32-bit elements that
|
|
| concatenate in the platform's normal endian order to form a 96-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
int_fast8_t softfloat_compare96M(const uint32_t* aPtr, const uint32_t* bPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_compare128M
|
|
/*----------------------------------------------------------------------------
|
|
| Compares the two 128-bit unsigned integers pointed to by 'aPtr' and 'bPtr'.
|
|
| Returns -1 if the first integer (A) is less than the second (B); returns 0
|
|
| if the two integers are equal; and returns +1 if the first integer (A)
|
|
| is greater than the second (B). (The result is thus the signum of A - B.)
|
|
| Each of 'aPtr' and 'bPtr' points to an array of four 32-bit elements that
|
|
| concatenate in the platform's normal endian order to form a 128-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
int_fast8_t softfloat_compare128M(const uint32_t* aPtr, const uint32_t* bPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftLeft64To96M
|
|
/*----------------------------------------------------------------------------
|
|
| Extends 'a' to 96 bits and shifts the value left by the number of bits given
|
|
| in 'dist', which must be in the range 1 to 31. The result is stored at the
|
|
| location pointed to by 'zPtr'. Argument 'zPtr' points to an array of three
|
|
| 32-bit elements that concatenate in the platform's normal endian order to
|
|
| form a 96-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
|
|
INLINE
|
|
void softfloat_shortShiftLeft64To96M(uint64_t a, uint_fast8_t dist, uint32_t* zPtr) {
|
|
zPtr[indexWord(3, 0)] = (uint32_t)a << dist;
|
|
a >>= 32 - dist;
|
|
zPtr[indexWord(3, 2)] = a >> 32;
|
|
zPtr[indexWord(3, 1)] = a;
|
|
}
|
|
#else
|
|
void softfloat_shortShiftLeft64To96M(uint64_t a, uint_fast8_t dist, uint32_t* zPtr);
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftLeftM
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the N-bit unsigned integer pointed to by 'aPtr' left by the number
|
|
| of bits given in 'dist', where N = 'size_words' * 32. The value of 'dist'
|
|
| must be in the range 1 to 31. Any nonzero bits shifted off are lost. The
|
|
| shifted N-bit result is stored at the location pointed to by 'zPtr'. Each
|
|
| of 'aPtr' and 'zPtr' points to a 'size_words'-long array of 32-bit elements
|
|
| that concatenate in the platform's normal endian order to form an N-bit
|
|
| integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_shortShiftLeftM(uint_fast8_t size_words, const uint32_t* aPtr, uint_fast8_t dist, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftLeft96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shortShiftLeftM' with
|
|
| 'size_words' = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shortShiftLeft96M(aPtr, dist, zPtr) softfloat_shortShiftLeftM(3, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftLeft128M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shortShiftLeftM' with
|
|
| 'size_words' = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shortShiftLeft128M(aPtr, dist, zPtr) softfloat_shortShiftLeftM(4, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftLeft160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shortShiftLeftM' with
|
|
| 'size_words' = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shortShiftLeft160M(aPtr, dist, zPtr) softfloat_shortShiftLeftM(5, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftLeftM
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the N-bit unsigned integer pointed to by 'aPtr' left by the number
|
|
| of bits given in 'dist', where N = 'size_words' * 32. The value of 'dist'
|
|
| must not be zero. Any nonzero bits shifted off are lost. The shifted
|
|
| N-bit result is stored at the location pointed to by 'zPtr'. Each of 'aPtr'
|
|
| and 'zPtr' points to a 'size_words'-long array of 32-bit elements that
|
|
| concatenate in the platform's normal endian order to form an N-bit integer.
|
|
| The value of 'dist' can be arbitrarily large. In particular, if 'dist' is
|
|
| greater than N, the stored result will be 0.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_shiftLeftM(uint_fast8_t size_words, const uint32_t* aPtr, uint32_t dist, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftLeft96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shiftLeftM' with
|
|
| 'size_words' = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shiftLeft96M(aPtr, dist, zPtr) softfloat_shiftLeftM(3, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftLeft128M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shiftLeftM' with
|
|
| 'size_words' = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shiftLeft128M(aPtr, dist, zPtr) softfloat_shiftLeftM(4, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftLeft160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shiftLeftM' with
|
|
| 'size_words' = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shiftLeft160M(aPtr, dist, zPtr) softfloat_shiftLeftM(5, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRightM
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the N-bit unsigned integer pointed to by 'aPtr' right by the number
|
|
| of bits given in 'dist', where N = 'size_words' * 32. The value of 'dist'
|
|
| must be in the range 1 to 31. Any nonzero bits shifted off are lost. The
|
|
| shifted N-bit result is stored at the location pointed to by 'zPtr'. Each
|
|
| of 'aPtr' and 'zPtr' points to a 'size_words'-long array of 32-bit elements
|
|
| that concatenate in the platform's normal endian order to form an N-bit
|
|
| integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_shortShiftRightM(uint_fast8_t size_words, const uint32_t* aPtr, uint_fast8_t dist, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRight128M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shortShiftRightM' with
|
|
| 'size_words' = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shortShiftRight128M(aPtr, dist, zPtr) softfloat_shortShiftRightM(4, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRight160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shortShiftRightM' with
|
|
| 'size_words' = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shortShiftRight160M(aPtr, dist, zPtr) softfloat_shortShiftRightM(5, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRightJamM
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the N-bit unsigned integer pointed to by 'aPtr' right by the number
|
|
| of bits given in 'dist', where N = 'size_words' * 32. The value of 'dist'
|
|
| must be in the range 1 to 31. If any nonzero bits are shifted off, they are
|
|
| "jammed" into the least-significant bit of the shifted value by setting the
|
|
| least-significant bit to 1. This shifted-and-jammed N-bit result is stored
|
|
| at the location pointed to by 'zPtr'. Each of 'aPtr' and 'zPtr' points
|
|
| to a 'size_words'-long array of 32-bit elements that concatenate in the
|
|
| platform's normal endian order to form an N-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_shortShiftRightJamM(uint_fast8_t, const uint32_t*, uint_fast8_t, uint32_t*);
|
|
#endif
|
|
|
|
#ifndef softfloat_shortShiftRightJam160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shortShiftRightJamM' with
|
|
| 'size_words' = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shortShiftRightJam160M(aPtr, dist, zPtr) softfloat_shortShiftRightJamM(5, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightM
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the N-bit unsigned integer pointed to by 'aPtr' right by the number
|
|
| of bits given in 'dist', where N = 'size_words' * 32. The value of 'dist'
|
|
| must not be zero. Any nonzero bits shifted off are lost. The shifted
|
|
| N-bit result is stored at the location pointed to by 'zPtr'. Each of 'aPtr'
|
|
| and 'zPtr' points to a 'size_words'-long array of 32-bit elements that
|
|
| concatenate in the platform's normal endian order to form an N-bit integer.
|
|
| The value of 'dist' can be arbitrarily large. In particular, if 'dist' is
|
|
| greater than N, the stored result will be 0.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_shiftRightM(uint_fast8_t size_words, const uint32_t* aPtr, uint32_t dist, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRight96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shiftRightM' with
|
|
| 'size_words' = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shiftRight96M(aPtr, dist, zPtr) softfloat_shiftRightM(3, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJamM
|
|
/*----------------------------------------------------------------------------
|
|
| Shifts the N-bit unsigned integer pointed to by 'aPtr' right by the number
|
|
| of bits given in 'dist', where N = 'size_words' * 32. The value of 'dist'
|
|
| must not be zero. If any nonzero bits are shifted off, they are "jammed"
|
|
| into the least-significant bit of the shifted value by setting the least-
|
|
| significant bit to 1. This shifted-and-jammed N-bit result is stored
|
|
| at the location pointed to by 'zPtr'. Each of 'aPtr' and 'zPtr' points
|
|
| to a 'size_words'-long array of 32-bit elements that concatenate in the
|
|
| platform's normal endian order to form an N-bit integer.
|
|
| The value of 'dist' can be arbitrarily large. In particular, if 'dist'
|
|
| is greater than N, the stored result will be either 0 or 1, depending on
|
|
| whether the original N bits are all zeros.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_shiftRightJamM(uint_fast8_t size_words, const uint32_t* aPtr, uint32_t dist, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shiftRightJamM' with
|
|
| 'size_words' = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shiftRightJam96M(aPtr, dist, zPtr) softfloat_shiftRightJamM(3, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam128M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shiftRightJamM' with
|
|
| 'size_words' = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shiftRightJam128M(aPtr, dist, zPtr) softfloat_shiftRightJamM(4, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_shiftRightJam160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_shiftRightJamM' with
|
|
| 'size_words' = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_shiftRightJam160M(aPtr, dist, zPtr) softfloat_shiftRightJamM(5, aPtr, dist, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_addM
|
|
/*----------------------------------------------------------------------------
|
|
| Adds the two N-bit integers pointed to by 'aPtr' and 'bPtr', where N =
|
|
| 'size_words' * 32. The addition is modulo 2^N, so any carry out is lost.
|
|
| The N-bit sum is stored at the location pointed to by 'zPtr'. Each of
|
|
| 'aPtr', 'bPtr', and 'zPtr' points to a 'size_words'-long array of 32-bit
|
|
| elements that concatenate in the platform's normal endian order to form an
|
|
| N-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_addM(uint_fast8_t size_words, const uint32_t* aPtr, const uint32_t* bPtr, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_add96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_addM' with 'size_words'
|
|
| = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_add96M(aPtr, bPtr, zPtr) softfloat_addM(3, aPtr, bPtr, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_add128M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_addM' with 'size_words'
|
|
| = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_add128M(aPtr, bPtr, zPtr) softfloat_addM(4, aPtr, bPtr, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_add160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_addM' with 'size_words'
|
|
| = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_add160M(aPtr, bPtr, zPtr) softfloat_addM(5, aPtr, bPtr, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_addCarryM
|
|
/*----------------------------------------------------------------------------
|
|
| Adds the two N-bit unsigned integers pointed to by 'aPtr' and 'bPtr', where
|
|
| N = 'size_words' * 32, plus 'carry', which must be either 0 or 1. The N-bit
|
|
| sum (modulo 2^N) is stored at the location pointed to by 'zPtr', and any
|
|
| carry out is returned as the result. Each of 'aPtr', 'bPtr', and 'zPtr'
|
|
| points to a 'size_words'-long array of 32-bit elements that concatenate in
|
|
| the platform's normal endian order to form an N-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
uint_fast8_t softfloat_addCarryM(uint_fast8_t size_words, const uint32_t* aPtr, const uint32_t* bPtr, uint_fast8_t carry, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_addComplCarryM
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_addCarryM', except that
|
|
| the value of the unsigned integer pointed to by 'bPtr' is bit-wise completed
|
|
| before the addition.
|
|
*----------------------------------------------------------------------------*/
|
|
uint_fast8_t softfloat_addComplCarryM(uint_fast8_t size_words, const uint32_t* aPtr, const uint32_t* bPtr, uint_fast8_t carry,
|
|
uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_addComplCarry96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_addComplCarryM' with
|
|
| 'size_words' = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_addComplCarry96M(aPtr, bPtr, carry, zPtr) softfloat_addComplCarryM(3, aPtr, bPtr, carry, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_negXM
|
|
/*----------------------------------------------------------------------------
|
|
| Replaces the N-bit unsigned integer pointed to by 'zPtr' by the
|
|
| 2s-complement of itself, where N = 'size_words' * 32. Argument 'zPtr'
|
|
| points to a 'size_words'-long array of 32-bit elements that concatenate in
|
|
| the platform's normal endian order to form an N-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_negXM(uint_fast8_t size_words, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_negX96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_negXM' with 'size_words'
|
|
| = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_negX96M(zPtr) softfloat_negXM(3, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_negX128M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_negXM' with 'size_words'
|
|
| = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_negX128M(zPtr) softfloat_negXM(4, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_negX160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_negXM' with 'size_words'
|
|
| = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_negX160M(zPtr) softfloat_negXM(5, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_negX256M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_negXM' with 'size_words'
|
|
| = 8 (N = 256).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_negX256M(zPtr) softfloat_negXM(8, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_sub1XM
|
|
/*----------------------------------------------------------------------------
|
|
| Subtracts 1 from the N-bit integer pointed to by 'zPtr', where N =
|
|
| 'size_words' * 32. The subtraction is modulo 2^N, so any borrow out (carry
|
|
| out) is lost. Argument 'zPtr' points to a 'size_words'-long array of 32-bit
|
|
| elements that concatenate in the platform's normal endian order to form an
|
|
| N-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_sub1XM(uint_fast8_t size_words, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_sub1X96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_sub1XM' with 'size_words'
|
|
| = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_sub1X96M(zPtr) softfloat_sub1XM(3, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_sub1X160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_sub1XM' with 'size_words'
|
|
| = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_sub1X160M(zPtr) softfloat_sub1XM(5, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_subM
|
|
/*----------------------------------------------------------------------------
|
|
| Subtracts the two N-bit integers pointed to by 'aPtr' and 'bPtr', where N =
|
|
| 'size_words' * 32. The subtraction is modulo 2^N, so any borrow out (carry
|
|
| out) is lost. The N-bit difference is stored at the location pointed to by
|
|
| 'zPtr'. Each of 'aPtr', 'bPtr', and 'zPtr' points to a 'size_words'-long
|
|
| array of 32-bit elements that concatenate in the platform's normal endian
|
|
| order to form an N-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_subM(uint_fast8_t size_words, const uint32_t* aPtr, const uint32_t* bPtr, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_sub96M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_subM' with 'size_words'
|
|
| = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_sub96M(aPtr, bPtr, zPtr) softfloat_subM(3, aPtr, bPtr, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_sub128M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_subM' with 'size_words'
|
|
| = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_sub128M(aPtr, bPtr, zPtr) softfloat_subM(4, aPtr, bPtr, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_sub160M
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_subM' with 'size_words'
|
|
| = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_sub160M(aPtr, bPtr, zPtr) softfloat_subM(5, aPtr, bPtr, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_mul64To128M
|
|
/*----------------------------------------------------------------------------
|
|
| Multiplies 'a' and 'b' and stores the 128-bit product at the location
|
|
| pointed to by 'zPtr'. Argument 'zPtr' points to an array of four 32-bit
|
|
| elements that concatenate in the platform's normal endian order to form a
|
|
| 128-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_mul64To128M(uint64_t a, uint64_t b, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_mul128MTo256M
|
|
/*----------------------------------------------------------------------------
|
|
| Multiplies the two 128-bit unsigned integers pointed to by 'aPtr' and
|
|
| 'bPtr', and stores the 256-bit product at the location pointed to by 'zPtr'.
|
|
| Each of 'aPtr' and 'bPtr' points to an array of four 32-bit elements that
|
|
| concatenate in the platform's normal endian order to form a 128-bit integer.
|
|
| Argument 'zPtr' points to an array of eight 32-bit elements that concatenate
|
|
| to form a 256-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_mul128MTo256M(const uint32_t* aPtr, const uint32_t* bPtr, uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_remStepMBy32
|
|
/*----------------------------------------------------------------------------
|
|
| Performs a "remainder reduction step" as follows: Arguments 'remPtr' and
|
|
| 'bPtr' both point to N-bit unsigned integers, where N = 'size_words' * 32.
|
|
| Defining R and B as the values of those integers, the expression (R<<'dist')
|
|
| - B * q is computed modulo 2^N, and the N-bit result is stored at the
|
|
| location pointed to by 'zPtr'. Each of 'remPtr', 'bPtr', and 'zPtr' points
|
|
| to a 'size_words'-long array of 32-bit elements that concatenate in the
|
|
| platform's normal endian order to form an N-bit integer.
|
|
*----------------------------------------------------------------------------*/
|
|
void softfloat_remStepMBy32(uint_fast8_t size_words, const uint32_t* remPtr, uint_fast8_t dist, const uint32_t* bPtr, uint32_t q,
|
|
uint32_t* zPtr);
|
|
#endif
|
|
|
|
#ifndef softfloat_remStep96MBy32
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_remStepMBy32' with
|
|
| 'size_words' = 3 (N = 96).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_remStep96MBy32(remPtr, dist, bPtr, q, zPtr) softfloat_remStepMBy32(3, remPtr, dist, bPtr, q, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_remStep128MBy32
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_remStepMBy32' with
|
|
| 'size_words' = 4 (N = 128).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_remStep128MBy32(remPtr, dist, bPtr, q, zPtr) softfloat_remStepMBy32(4, remPtr, dist, bPtr, q, zPtr)
|
|
#endif
|
|
|
|
#ifndef softfloat_remStep160MBy32
|
|
/*----------------------------------------------------------------------------
|
|
| This function or macro is the same as 'softfloat_remStepMBy32' with
|
|
| 'size_words' = 5 (N = 160).
|
|
*----------------------------------------------------------------------------*/
|
|
#define softfloat_remStep160MBy32(remPtr, dist, bPtr, q, zPtr) softfloat_remStepMBy32(5, remPtr, dist, bPtr, q, zPtr)
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|