| /* |
| * Copyright (c) 2020 Raspberry Pi (Trading) Ltd. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #ifndef _PICO_DOUBLE_H |
| #define _PICO_DOUBLE_H |
| |
| #include <math.h> |
| #include "pico.h" |
| #include "pico/bootrom/sf_table.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** \file double.h |
| * \defgroup pico_double pico_double |
| * |
| * \brief Optimized double-precision floating point functions |
| * |
| * (Replacement) optimized implementations are provided of the following compiler built-ins |
| * and math library functions: |
| * |
| * - __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 |
| * - 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 |
| * - powint, sincos (GNU extensions) |
| * |
| * The following additional optimized functions are also provided: |
| * |
| * - int2double, uint2double, int642double, uint642double, fix2double, ufix2double, fix642double, ufix642double |
| * - double2fix, double2ufix, double2fix64, double2ufix64, double2int, double2uint, double2int64, double2uint64, double2int_z, double2int64_z, |
| * - exp10, sincos, powint |
| * |
| * On RP2350 the following additional functions are available; the _fast methods are faster but do not round correctly" |
| * |
| * - ddiv_fast, sqrt_fast |
| */ |
| |
| double int2double(int32_t i); |
| double uint2double(uint32_t u); |
| double int642double(int64_t i); |
| double uint642double(uint64_t u); |
| double fix2double(int32_t m, int e); |
| double ufix2double(uint32_t m, int e); |
| double fix642double(int64_t m, int e); |
| double ufix642double(uint64_t m, int e); |
| |
| // These methods round towards -Infinity. |
| int32_t double2fix(double d, int e); |
| uint32_t double2ufix(double d, int e); |
| int64_t double2fix64(double d, int e); |
| uint64_t double2ufix64(double d, int e); |
| int32_t double2int(double d); |
| uint32_t double2uint(double d); |
| int64_t double2int64(double d); |
| uint64_t double2uint64(double d); |
| |
| // These methods round towards 0. |
| int32_t double2int_z(double d); |
| int64_t double2int64_z(double d); |
| |
| double exp10(double x); |
| void sincos(double x, double *sinx, double *cosx); |
| double powint(double x, int y); |
| |
| #if !PICO_RP2040 |
| double ddiv_fast(double n, double d); |
| double sqrt_fast(double d); |
| double mla(double x, double y, double z); // note this is not fused |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |
| |
