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/github/workspace/src/MatrixFunctionsStride/mat_scale_stride/kernels/plp_mat_scale_stride_i32s_rv32im.c

Functions

Name
void plp_mat_scale_stride_i32s_rv32im(const int32_t restrict pSrc, uint32_t M, uint32_t N, uint32_t strideSrc, uint32_t strideDst, int32_t scaleFactor, int32_t shift, int32_t restrict pDst)
strided matrix scale of 32-bit integer matrices kernel for RV32IM extension.

Defines

Name
BASIC_VERSION

Functions Documentation

function plp_mat_scale_stride_i32s_rv32im

void plp_mat_scale_stride_i32s_rv32im(
    const int32_t *__restrict__ pSrc,
    uint32_t M,
    uint32_t N,
    uint32_t strideSrc,
    uint32_t strideDst,
    int32_t scaleFactor,
    int32_t shift,
    int32_t *__restrict__ pDst
)

strided matrix scale of 32-bit integer matrices kernel for RV32IM extension.

Parameters:

  • pSrc Points to the input matrix
  • M Height of both matrices
  • N Width of both matrices
  • strideSrc Stride of input matrix (elements between each row)
  • strideDst Stride of output matrix (elements between each row)
  • scaleFactor Factor to mulitply all elements before shifting
  • shift Amount to shift each element
  • pDst Points to the output matrix

Return: none

strided matrix scale of a 32-bit integer matrices for RV32IM extension.

Macros Documentation

define BASIC_VERSION

#define BASIC_VERSION

Source code

/* =====================================================================
 * Project:      PULP DSP Library
 * Title:        plp_mat_scale_stride_i32s_rv32im.c
 * Description:  32-bit strided matrix scale kernel for RV32IM
 *
 * $Date:        6. July 2020
 * $Revision:    V0
 *
 * Target Processor: PULP cores
 * ===================================================================== */
/*
 * Copyright (C) 2020 ETH Zurich and University of Bologna.
 *
 * 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_mat_scale_stride_i32s_rv32im(const int32_t *__restrict__ pSrc,
                                      uint32_t M,
                                      uint32_t N,
                                      uint32_t strideSrc,
                                      uint32_t strideDst,
                                      int32_t scaleFactor,
                                      int32_t shift,
                                      int32_t *__restrict__ pDst) {

#define BASIC_VERSION // if used don' forget to also use undefine at end of file
#ifdef BASIC_VERSION

    for (int m = 0; m < M; m++) {
        for (int n = 0; n < N; n++) {
            int32_t val = ((int32_t)pSrc[m * strideSrc + n]) * ((int32_t)scaleFactor);
            pDst[m * strideDst + n] = (int32_t)(val >> shift);
        }
    }

#else

    // TODO: Hackathon

#endif
#undef BASIC_VERSION
}

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