/github/workspace/src/FastMathFunctions/plp_sqrt_q16.c

Functions

	Name
void	plp_sqrt_q16(const int16_t restrict pSrc, const uint32_t fracBits, int16_t restrict pRes) Glue code for square root of a 16-bit fixed point number.

Functions Documentation

function plp_sqrt_q16

void plp_sqrt_q16(
    const int16_t *__restrict__ pSrc,
    const uint32_t fracBits,
    int16_t *__restrict__ pRes
)

Glue code for square root of a 16-bit fixed point number.

Parameters:

• pSrc points to the input vector
• pRes Square root returned here

Return: none

Source code

/* =====================================================================
 * Project:      PULP DSP Library
 * Title:        plp_sqrt_q16.c
 * Description:  Calculates the square root of a 16-Bit input number
 *
 * $Date:        30.06.2020
 *
 * Target Processor: PULP cores
 * ===================================================================== */
/*
 * Copyright (C) 2020 ETH Zurich and University of Bologna.
 *
 * Author: Moritz Scherer, 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_sqrt_q16(const int16_t *__restrict__ pSrc,
                  const uint32_t fracBits,
                  int16_t *__restrict__ pRes) {

    if (hal_cluster_id() == ARCHI_FC_CID) {
        plp_sqrt_q16s_rv32im(pSrc, fracBits, pRes);
    } else {
        plp_sqrt_q16s_xpulpv2(pSrc, fracBits, pRes);
    }
}

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