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126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
/******************************************************************************
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* @file fast_math_functions_f16.h
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* @brief Public header file for CMSIS DSP Library
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* @version V1.10.0
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* @date 08 July 2021
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* Target Processor: Cortex-M and Cortex-A cores
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******************************************************************************/
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/*
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* Copyright (c) 2010-2020 Arm Limited or its affiliates. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _FAST_MATH_FUNCTIONS_F16_H_
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#define _FAST_MATH_FUNCTIONS_F16_H_
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#include "arm_math_types_f16.h"
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#include "arm_math_memory.h"
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#include "dsp/none.h"
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#include "dsp/utils.h"
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/* For sqrt_f32 */
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#include "dsp/fast_math_functions.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#if defined(ARM_FLOAT16_SUPPORTED)
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/**
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* @addtogroup SQRT
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* @{
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*/
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/**
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@brief Floating-point square root function.
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@param[in] in input value
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@param[out] pOut square root of input value
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@return execution status
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- \ref ARM_MATH_SUCCESS : input value is positive
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- \ref ARM_MATH_ARGUMENT_ERROR : input value is negative; *pOut is set to 0
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*/
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__STATIC_FORCEINLINE arm_status arm_sqrt_f16(
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float16_t in,
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float16_t * pOut)
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{
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float32_t r;
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arm_status status;
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status=arm_sqrt_f32((float32_t)in,&r);
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*pOut=(float16_t)r;
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return(status);
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}
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/**
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@} end of SQRT group
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*/
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/**
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@brief Floating-point vector of log values.
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@param[in] pSrc points to the input vector
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@param[out] pDst points to the output vector
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@param[in] blockSize number of samples in each vector
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@return none
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*/
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void arm_vlog_f16(
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const float16_t * pSrc,
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float16_t * pDst,
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uint32_t blockSize);
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/**
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@brief Floating-point vector of exp values.
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@param[in] pSrc points to the input vector
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@param[out] pDst points to the output vector
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@param[in] blockSize number of samples in each vector
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@return none
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*/
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void arm_vexp_f16(
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const float16_t * pSrc,
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float16_t * pDst,
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uint32_t blockSize);
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/**
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@brief Floating-point vector of inverse values.
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@param[in] pSrc points to the input vector
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@param[out] pDst points to the output vector
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@param[in] blockSize number of samples in each vector
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@return none
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*/
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void arm_vinverse_f16(
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const float16_t * pSrc,
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float16_t * pDst,
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uint32_t blockSize);
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/**
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@brief Arc tangent in radian of y/x using sign of x and y to determine right quadrant.
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@param[in] y y coordinate
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@param[in] x x coordinate
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@param[out] result Result
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@return error status.
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*/
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arm_status arm_atan2_f16(float16_t y,float16_t x,float16_t *result);
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#endif /*defined(ARM_FLOAT16_SUPPORTED)*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* ifndef _FAST_MATH_FUNCTIONS_F16_H_ */
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