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/*
* Copyright (C) 2022 Arm Limited or its affiliates.
*
* 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.
*/
/* ----------------------------------------------------------------------
* Project: CMSIS NN Library
* Title: arm_elementwise_add_s16
* Description: Elementwise add
*
* $Date: 14 Februari 2022
* $Revision: V.1.0.0
*
* Target Processor: Cortex-M CPUs
*
* -------------------------------------------------------------------- */
#include "arm_nnfunctions.h"
#include "arm_nnsupportfunctions.h"
/**
* @ingroup groupNN
*/
/**
* @addtogroup BasicMath
* @{
*/
/*
* s16 elementwise add
*
* Refer header file for details.
*
*/
/* Note: __SHIFT is expected to be <=0 */
arm_status arm_elementwise_add_s16(const int16_t *input_1_vect,
const int16_t *input_2_vect,
const int32_t input_1_offset,
const int32_t input_1_mult,
const int32_t input_1_shift,
const int32_t input_2_offset,
const int32_t input_2_mult,
const int32_t input_2_shift,
const int32_t left_shift,
int16_t *output,
const int32_t out_offset,
const int32_t out_mult,
const int32_t out_shift,
const int32_t out_activation_min,
const int32_t out_activation_max,
const int32_t block_size)
{
(void)input_1_offset;
(void)input_2_offset;
(void)out_offset;
int32_t loop_count;
int32_t input_1;
int32_t input_2;
int32_t sum;
loop_count = block_size;
while (loop_count > 0)
{
/* C = A + B */
input_1 = *input_1_vect++ << left_shift;
input_2 = *input_2_vect++ << left_shift;
input_1 = arm_nn_requantize(input_1, input_1_mult, input_1_shift);
input_2 = arm_nn_requantize(input_2, input_2_mult, input_2_shift);
sum = input_1 + input_2;
sum = arm_nn_requantize(sum, out_mult, out_shift);
sum = MAX(sum, out_activation_min);
sum = MIN(sum, out_activation_max);
*output++ = (int16_t)sum;
/* Decrement loop counter */
loop_count--;
}
return (ARM_MATH_SUCCESS);
}
/**
* @} end of BasicMath group
*/
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