| /****************************************************************************** | |
| * @file fast_math_functions_f16.h | |
| * @brief Public header file for CMSIS DSP Library | |
| * @version V1.10.0 | |
| * @date 08 July 2021 | |
| * Target Processor: Cortex-M and Cortex-A cores | |
| ******************************************************************************/ | |
| /* | |
| * Copyright (c) 2010-2020 Arm Limited or its affiliates. All rights reserved. | |
| * | |
| * SPDX-License-Identifier: Apache-2.0 | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the License); you may | |
| * not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an AS IS BASIS, WITHOUT | |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License. | |
| */ | |
| /* For sqrt_f32 */ | |
| extern "C" | |
| { | |
| /** | |
| * @addtogroup SQRT | |
| * @{ | |
| */ | |
| /** | |
| @brief Floating-point square root function. | |
| @param[in] in input value | |
| @param[out] pOut square root of input value | |
| @return execution status | |
| - \ref ARM_MATH_SUCCESS : input value is positive | |
| - \ref ARM_MATH_ARGUMENT_ERROR : input value is negative; *pOut is set to 0 | |
| */ | |
| __STATIC_FORCEINLINE arm_status arm_sqrt_f16( | |
| float16_t in, | |
| float16_t * pOut) | |
| { | |
| float32_t r; | |
| arm_status status; | |
| status=arm_sqrt_f32((float32_t)in,&r); | |
| *pOut=(float16_t)r; | |
| return(status); | |
| } | |
| /** | |
| @} end of SQRT group | |
| */ | |
| /** | |
| @brief Floating-point vector of log values. | |
| @param[in] pSrc points to the input vector | |
| @param[out] pDst points to the output vector | |
| @param[in] blockSize number of samples in each vector | |
| @return none | |
| */ | |
| void arm_vlog_f16( | |
| const float16_t * pSrc, | |
| float16_t * pDst, | |
| uint32_t blockSize); | |
| /** | |
| @brief Floating-point vector of exp values. | |
| @param[in] pSrc points to the input vector | |
| @param[out] pDst points to the output vector | |
| @param[in] blockSize number of samples in each vector | |
| @return none | |
| */ | |
| void arm_vexp_f16( | |
| const float16_t * pSrc, | |
| float16_t * pDst, | |
| uint32_t blockSize); | |
| /** | |
| @brief Floating-point vector of inverse values. | |
| @param[in] pSrc points to the input vector | |
| @param[out] pDst points to the output vector | |
| @param[in] blockSize number of samples in each vector | |
| @return none | |
| */ | |
| void arm_vinverse_f16( | |
| const float16_t * pSrc, | |
| float16_t * pDst, | |
| uint32_t blockSize); | |
| /** | |
| @brief Arc tangent in radian of y/x using sign of x and y to determine right quadrant. | |
| @param[in] y y coordinate | |
| @param[in] x x coordinate | |
| @param[out] result Result | |
| @return error status. | |
| */ | |
| arm_status arm_atan2_f16(float16_t y,float16_t x,float16_t *result); | |
| } | |