/* ----------------------------------------------------------------------
 * Project:      CMSIS DSP Library
 * Title:        arm_vlog_f64.c
 * Description:  Fast vectorized log
 *
 * $Date:        10 August 2022
 * $Revision:    V1.10.1
 *
 * Target Processor: Cortex-M and Cortex-A cores
 * -------------------------------------------------------------------- */
/*
 * Copyright (C) 2010-2021 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.
 */

#include "dsp/fast_math_functions.h"
#include "arm_common_tables.h"
#if defined(ARM_MATH_NEON)
#include "arm_vec_math.h"
#endif

void arm_vexp_f64(
  const float64_t * pSrc,
        float64_t * pDst,
        uint32_t blockSize)
{
   uint32_t blkCnt;
#if defined(ARM_MATH_NEON)
 
  
  float64x2_t src;
  float64x2_t dst;

  blkCnt = blockSize >> 1U;

  while (blkCnt > 0U)
  {
     src = vld1q_f64(pSrc);
     dst = vexpq_f64(src);
     vst1q_f64(pDst, dst);

     pSrc += 2;
     pDst += 2;

     blkCnt--;
  }
  
  blkCnt = blockSize & 1;
#else
   blkCnt = blockSize;
#endif
   while (blkCnt > 0U)
   {
      /* C = log(A) */
     
  
      /* Calculate log and store result in destination buffer. */
      *pDst++ = exp(*pSrc++);
  
      /* Decrement loop counter */
      blkCnt--;
   }
}