/github/workspace/src/SupportFunctions/kernels/plp_copy_i32s_rv32im.c

Functions

	Name
void	plp_copy_i32s_rv32im(int32_t restrict pSrc, int32_t restrict pDst, uint32_t blockSize) Copies the elements of a 32-bit integer vector for RV32IM extension.

Functions Documentation

function plp_copy_i32s_rv32im

void plp_copy_i32s_rv32im(
    int32_t *__restrict__ pSrc,
    int32_t *__restrict__ pDst,
    uint32_t blockSize
)

Copies the elements of a 32-bit integer vector for RV32IM extension.

Parameters:

• pSrc points to input vector
• pDst points to output vector
• blockSize number of samples in each vector

Return: none

Source code

/* ----------------------------------------------------------------------
 * Project:      PULP DSP Library
 * Title:        plp_copy_i32s_rv32im.c
 * Description:  Copies the elements of a 32-bit integer vector for RV32IM
 *
 * $Date:        02. June 2019
 * $Revision:    V0
 *
 * Target Processor: PULP cores
 * -------------------------------------------------------------------- */
/*
 * Copyright (C) 2019 ETH Zurich and University of Bologna.
 *
 * Author: Xiaying Wang, ETH Zurich
 *
 * 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.
 *
 * Notice: project inspired by ARM CMSIS DSP and parts of source code
 * ported and adopted for RISC-V PULP platform from ARM CMSIS DSP
 * released under Copyright (C) 2010-2019 ARM Limited or its affiliates
 * with Apache-2.0.
 */

#include "plp_math.h"

void plp_copy_i32s_rv32im(int32_t *__restrict__ pSrc,
                          int32_t *__restrict__ pDst,
                          uint32_t blockSize) {

    uint32_t blkCnt, tmpBS; /* Loop counter and temporal blockSize */

#if defined(PLP_MATH_LOOPUNROLL)

    tmpBS = (blockSize >> 2);

    for (blkCnt = 0; blkCnt < tmpBS; blkCnt++) {

        /* Copy and store result in destination buffer */
        *pDst++ = *pSrc++;
        *pDst++ = *pSrc++;
        *pDst++ = *pSrc++;
        *pDst++ = *pSrc++;
    }

    tmpBS = (blockSize % 4U);

    for (blkCnt = 0; blkCnt < tmpBS; blkCnt++) {
        *pDst++ = *pSrc++;
    }

#else

    for (blkCnt = 0; blkCnt < blockSize; blkCnt++) {
        *pDst++ = *pSrc++;
    }

#endif // PLP_MATH_LOOPUNROLL
}

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Updated on 2023-03-01 at 16:16:33 +0000