133 lines
2.9 KiB
C
133 lines
2.9 KiB
C
|
/* ----------------------------------------------------------------------
|
||
|
|
* Project: CMSIS DSP Library
|
||
|
|
* Title: arm_copy_q7.c
|
||
|
|
* Description: Copies the elements of a Q7 vector
|
||
|
|
*
|
||
|
|
* $Date: 23 April 2021
|
||
|
|
* $Revision: V1.9.0
|
||
|
|
*
|
||
|
|
* 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/support_functions.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
@ingroup groupSupport
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
@addtogroup copy
|
||
|
|
@{
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
@brief Copies the elements of a Q7 vector.
|
||
|
|
@param[in] pSrc points to input vector
|
||
|
|
@param[out] pDst points to output vector
|
||
|
|
@param[in] blockSize number of samples in each vector
|
||
|
|
@return none
|
||
|
|
*/
|
||
|
|
#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
|
||
|
|
void arm_copy_q7(
|
||
|
|
const q7_t * pSrc,
|
||
|
|
q7_t * pDst,
|
||
|
|
uint32_t blockSize)
|
||
|
|
{
|
||
|
|
|
||
|
|
uint32_t blkCnt;
|
||
|
|
|
||
|
|
blkCnt = blockSize >> 4;
|
||
|
|
while (blkCnt > 0U)
|
||
|
|
{
|
||
|
|
|
||
|
|
vstrbq_s8(pDst,vldrbq_s8(pSrc));
|
||
|
|
/*
|
||
|
|
* Decrement the blockSize loop counter
|
||
|
|
* Advance vector source and destination pointers
|
||
|
|
*/
|
||
|
|
pSrc += 16;
|
||
|
|
pDst += 16;
|
||
|
|
blkCnt --;
|
||
|
|
}
|
||
|
|
|
||
|
|
blkCnt = blockSize & 0xF;
|
||
|
|
while (blkCnt > 0U)
|
||
|
|
{
|
||
|
|
/* C = A */
|
||
|
|
|
||
|
|
/* Copy and store result in destination buffer */
|
||
|
|
*pDst++ = *pSrc++;
|
||
|
|
|
||
|
|
/* Decrement loop counter */
|
||
|
|
blkCnt--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
void arm_copy_q7(
|
||
|
|
const q7_t * pSrc,
|
||
|
|
q7_t * pDst,
|
||
|
|
uint32_t blockSize)
|
||
|
|
{
|
||
|
|
uint32_t blkCnt; /* Loop counter */
|
||
|
|
|
||
|
|
#if defined (ARM_MATH_LOOPUNROLL)
|
||
|
|
|
||
|
|
/* Loop unrolling: Compute 4 outputs at a time */
|
||
|
|
blkCnt = blockSize >> 2U;
|
||
|
|
|
||
|
|
while (blkCnt > 0U)
|
||
|
|
{
|
||
|
|
/* C = A */
|
||
|
|
|
||
|
|
/* read 4 samples at a time */
|
||
|
|
write_q7x4_ia (&pDst, read_q7x4_ia (&pSrc));
|
||
|
|
|
||
|
|
/* Decrement loop counter */
|
||
|
|
blkCnt--;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Loop unrolling: Compute remaining outputs */
|
||
|
|
blkCnt = blockSize % 0x4U;
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
/* Initialize blkCnt with number of samples */
|
||
|
|
blkCnt = blockSize;
|
||
|
|
|
||
|
|
#endif /* #if defined (ARM_MATH_LOOPUNROLL) */
|
||
|
|
|
||
|
|
while (blkCnt > 0U)
|
||
|
|
{
|
||
|
|
/* C = A */
|
||
|
|
|
||
|
|
/* Copy and store result in destination buffer */
|
||
|
|
*pDst++ = *pSrc++;
|
||
|
|
|
||
|
|
/* Decrement loop counter */
|
||
|
|
blkCnt--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif /* defined(ARM_MATH_MVEI) */
|
||
|
|
|
||
|
|
/**
|
||
|
|
@} end of BasicCopy group
|
||
|
|
*/
|