60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*
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* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _PICO_DOUBLE_H
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#define _PICO_DOUBLE_H
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#include <math.h>
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#include "pico/types.h"
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#include "pico/bootrom/sf_table.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \file double.h
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* \defgroup pico_double pico_double
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*
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* Optimized double-precision floating point functions
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*
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* (Replacement) optimized implementations are provided of the following compiler built-ins
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* and math library functions:
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*
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* - __aeabi_dadd, __aeabi_ddiv, __aeabi_dmul, __aeabi_drsub, __aeabi_dsub, __aeabi_cdcmpeq, __aeabi_cdrcmple, __aeabi_cdcmple, __aeabi_dcmpeq, __aeabi_dcmplt, __aeabi_dcmple, __aeabi_dcmpge, __aeabi_dcmpgt, __aeabi_dcmpun, __aeabi_i2d, __aeabi_l2d, __aeabi_ui2d, __aeabi_ul2d, __aeabi_d2iz, __aeabi_d2lz, __aeabi_d2uiz, __aeabi_d2ulz, __aeabi_d2f
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* - sqrt, cos, sin, tan, atan2, exp, log, ldexp, copysign, trunc, floor, ceil, round, asin, acos, atan, sinh, cosh, tanh, asinh, acosh, atanh, exp2, log2, exp10, log10, pow,, hypot, cbrt, fmod, drem, remainder, remquo, expm1, log1p, fma
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* - powint, sincos (GNU extensions)
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*
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* The following additional optimized functions are also provided:
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*
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* - fix2double, ufix2double, fix642double, ufix642double, double2fix, double2ufix, double2fix64, double2ufix64, double2int, double2int64, double2int_z, double2int64_z
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*/
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double fix2double(int32_t m, int e);
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double ufix2double(uint32_t m, int e);
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double fix642double(int64_t m, int e);
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double ufix642double(uint64_t m, int e);
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// These methods round towards -Infinity.
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int32_t double2fix(double f, int e);
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uint32_t double2ufix(double f, int e);
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int64_t double2fix64(double f, int e);
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uint64_t double2ufix64(double f, int e);
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int32_t double2int(double f);
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int64_t double2int64(double f);
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// These methods round towards 0.
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int32_t double2int_z(double f);
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int64_t double2int64_z(double f);
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double exp10(double x);
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void sincos(double x, double *sinx, double *cosx);
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double powint(double x, int y);
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#ifdef __cplusplus
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}
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#endif
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#endif |