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/******************************************************************************
* @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.
*/
#ifndef _FAST_MATH_FUNCTIONS_F16_H_
#define _FAST_MATH_FUNCTIONS_F16_H_
#include "arm_math_types_f16.h"
#include "arm_math_memory.h"
#include "dsp/none.h"
#include "dsp/utils.h"
/* For sqrt_f32 */
#include "dsp/fast_math_functions.h"
#ifdef __cplusplus
extern "C"
{
#endif
#if defined(ARM_FLOAT16_SUPPORTED)
/**
* @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);
#endif /*defined(ARM_FLOAT16_SUPPORTED)*/
#ifdef __cplusplus
}
#endif
#endif /* ifndef _FAST_MATH_FUNCTIONS_F16_H_ */
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