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Functions

Name
void plp_sub_i32s_xpulpv2(const int32_t * pSrcA, const int32_t * pSrcB, int32_t * pDst, uint32_t blockSize)
vector substraction for 32-bit integers on XpulpV2

Defines

Name
BASIC_VERSION

Functions Documentation

function plp_sub_i32s_xpulpv2

void plp_sub_i32s_xpulpv2(
    const int32_t * pSrcA,
    const int32_t * pSrcB,
    int32_t * pDst,
    uint32_t blockSize
)

vector substraction for 32-bit integers on XpulpV2

Parameters:

  • pSrcA points to the first input vector
  • pSrcB points to the second input vector
  • pDst points to the output vector
  • blockSize number of samples in each vector

Return: none

Macros Documentation

define BASIC_VERSION

#define BASIC_VERSION

Source code

/* =====================================================================
 * Project:      PULP DSP Library
 * Title:        plp_sub_i32s_xpulpv2.c
 * Description:  32-bit integer vector subtraction for XPULPV2
 *
 * $Date:        17 Mar 2021
 * $Revision:    V0
 *
 * Target Processor: PULP cores
 * ===================================================================== */
/*
 * Copyright (C) 2020 ETH Zurich and Ubiversity of Bologna. All rights reserved.
 *
 * Author: Tibor Schneider, 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.
 */

#include "plp_math.h"

void plp_sub_i32s_xpulpv2(const int32_t * pSrcA, const int32_t * pSrcB, int32_t * pDst, uint32_t blockSize) {

#define BASIC_VERSION // if used don't forget to also use the undefine at end of file
#ifdef BASIC_VERSION

    uint32_t blkCnt = blockSize;

while (blkCnt > 0U)
  {
    /* C = A - B */

    /* Subtract and store result in destination buffer. */
    *pDst++ = (*pSrcA++) - (*pSrcB++);

    /* Decrement loop counter */
    blkCnt--;
  }

#else

    // TODO: Hackathon

#endif
#undef BASIC_VERSION
}

Updated on 2023-03-01 at 16:16:32 +0000