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Functions

Name
void plp_cmplx_mult_real_q32(const int32_t restrict pSrcCmplx, const int32_t restrict pSrcReal, int32_t *restrict pDst, uint32_t deciPoint, uint32_t numSamples)
32-bit fixed-point complex-by-real multiplication.

Functions Documentation

function plp_cmplx_mult_real_q32

void plp_cmplx_mult_real_q32(
    const int32_t *__restrict__ pSrcCmplx,
    const int32_t *__restrict__ pSrcReal,
    int32_t *__restrict__ pDst,
    uint32_t deciPoint,
    uint32_t numSamples
)

32-bit fixed-point complex-by-real multiplication.

Parameters:

  • pSrcCmplx points to complex input vector
  • pSrcReal points to real input vector
  • pCmplxDst points to complex output vector
  • deciPoint decimal point for right shift
  • numSamples number of samples in each vector

Return: none

Glue code for complex multiplied with real of 32-bit fixed-point vectors.

Source code

/* =====================================================================
 * Project:      PULP DSP Library
 * Title:        plp_cmplx_mult_real_q32.c
 * Description:  32-bit fixed-point complex by real multiplication
 *
 * $Date:        29. Jun 2020
 * $Revision:    V0
 *
 * Target Processor: PULP cores
 * ===================================================================== */
/*
 * Copyright (C) 2019 ETH Zurich and University of Bologna.
 *
 * Author: Hanna Mueller, 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_cmplx_mult_real_q32(const int32_t *__restrict__ pSrcCmplx,
                             const int32_t *__restrict__ pSrcReal,
                             int32_t *__restrict__ pDst,
                             uint32_t deciPoint,
                             uint32_t numSamples) {

    if (hal_cluster_id() == ARCHI_FC_CID) {
        plp_cmplx_mult_real_q32_rv32im(pSrcCmplx, pSrcReal, pDst, deciPoint, numSamples);
    } else {
        plp_cmplx_mult_real_q32_xpulpv2(pSrcCmplx, pSrcReal, pDst, deciPoint, numSamples);
    }
}

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