| /* | |
| * SPDX-FileCopyrightText: Copyright 2010-2019, 2022 Arm Limited and/or its affiliates <open-source-office@arm.com> | |
| * | |
| * 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_softmax_with_batch_q7.c | |
| * Description: Q7 softmax function | |
| * | |
| * $Date: 4 Aug 2022 | |
| * $Revision: V.1.0.2 | |
| * | |
| * Target Processor: Cortex-M and Cortex-A cores | |
| * | |
| * -------------------------------------------------------------------- */ | |
| /** | |
| * @ingroup groupNN | |
| */ | |
| /** | |
| * @addtogroup Softmax | |
| * @{ | |
| */ | |
| /* | |
| * Q7 softmax function with batch parameter | |
| * | |
| * details | |
| * | |
| * Here, instead of typical natural logarithm e based softmax, we use | |
| * 2-based softmax here, i.e.,: | |
| * | |
| * y_i = 2^(x_i) / sum(2^x_j) | |
| * | |
| * The relative output will be different here. | |
| * But mathematically, the gradient will be the same | |
| * with a log(2) scaling factor. | |
| * | |
| */ | |
| void arm_softmax_with_batch_q7(const q7_t *vec_in, const uint16_t nb_batches, const uint16_t dim_vec, q7_t *p_out) | |
| { | |
| for (int i = 0; i < nb_batches; i++) | |
| { | |
| arm_softmax_q7(vec_in, dim_vec, p_out); | |
| vec_in += dim_vec; | |
| p_out += dim_vec; | |
| } | |
| } | |
| /** | |
| * @} end of Softmax group | |
| */ | |