File size: 3,131 Bytes
25ade36 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | #include "edge-impulse-sdk/dsp/config.hpp"
#if EIDSP_LOAD_CMSIS_DSP_SOURCES
/* ----------------------------------------------------------------------
* 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 "edge-impulse-sdk/CMSIS/DSP/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
*/
#endif // EIDSP_LOAD_CMSIS_DSP_SOURCES
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