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| author | jaseg <git-bigdata-wsl-arch@jaseg.de> | 2020-05-03 19:53:02 +0200 |
|---|---|---|
| committer | jaseg <git-bigdata-wsl-arch@jaseg.de> | 2020-05-03 19:53:02 +0200 |
| commit | 2628932a40d769d8d0180ba6fed1e7b9b2718982 (patch) | |
| tree | ea485897653003d01cd16e2b506f69363928fafa /Blink/Drivers/CMSIS/NN/Source/ActivationFunctions/arm_nn_activations_q15.c | |
| parent | 972da3c0fd449dd6153edaf3c56e0c50d16b726b (diff) | |
| download | minikbd-2628932a40d769d8d0180ba6fed1e7b9b2718982.tar.gz minikbd-2628932a40d769d8d0180ba6fed1e7b9b2718982.tar.bz2 minikbd-2628932a40d769d8d0180ba6fed1e7b9b2718982.zip | |
minkbd: repo restructure
Diffstat (limited to 'Blink/Drivers/CMSIS/NN/Source/ActivationFunctions/arm_nn_activations_q15.c')
| -rw-r--r-- | Blink/Drivers/CMSIS/NN/Source/ActivationFunctions/arm_nn_activations_q15.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/Blink/Drivers/CMSIS/NN/Source/ActivationFunctions/arm_nn_activations_q15.c b/Blink/Drivers/CMSIS/NN/Source/ActivationFunctions/arm_nn_activations_q15.c deleted file mode 100644 index fd447e5..0000000 --- a/Blink/Drivers/CMSIS/NN/Source/ActivationFunctions/arm_nn_activations_q15.c +++ /dev/null @@ -1,101 +0,0 @@ -/*
- * Copyright (C) 2010-2018 Arm Limited or its affiliates. All rights reserved.
- *
- * 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_nn_activations_q15.c
- * Description: Q15 neural network activation function using direct table look-up
- *
- * $Date: 17. January 2018
- * $Revision: V.1.0.0
- *
- * Target Processor: Cortex-M cores
- *
- * -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-#include "arm_common_tables.h"
-#include "arm_nnfunctions.h"
-
-/**
- * @ingroup groupNN
- */
-
-/**
- * @addtogroup Acti
- * @{
- */
-
- /**
- * @brief Q15 neural network activation function using direct table look-up
- * @param[in,out] data pointer to input
- * @param[in] size number of elements
- * @param[in] int_width bit-width of the integer part, assume to be smaller than 3
- * @param[in] type type of activation functions
- * @return none.
- *
- * @details
- *
- * This is the direct table look-up approach.
- *
- * Assume here the integer part of the fixed-point is <= 3.
- * More than 3 just not making much sense, makes no difference with
- * saturation followed by any of these activation functions.
- */
-
-void arm_nn_activations_direct_q15(q15_t * data, uint16_t size, uint16_t int_width, arm_nn_activation_type type)
-{
- uint16_t i = size;
- q15_t *pIn = data;
- q15_t *pOut = data;
- uint16_t shift_size = 8 + 3 - int_width;
- uint32_t bit_mask = 0x7FF >> int_width;
- uint32_t full_frac = bit_mask + 1;
- const q15_t *lookup_table;
-
- switch (type)
- {
- case ARM_SIGMOID:
- lookup_table = sigmoidTable_q15;
- break;
- case ARM_TANH:
- default:
- lookup_table = tanhTable_q15;
- break;
- }
-
- while (i)
- {
- q15_t out;
- q15_t in = *pIn++;
- q15_t frac = (uint32_t) in & bit_mask;
- q15_t value = lookup_table[__USAT(in >> shift_size, 8)];
- q15_t value2 = lookup_table[__USAT(1 + (in >> shift_size), 8)];
-
- /* doing the interpolation here for better accuracy */
- out = ((q31_t) (full_frac - frac) * value + (q31_t) value2 * frac) >> shift_size;
-
- *pOut++ = out;
- i--;
- }
-
-}
-
-/**
- * @} end of Acti group
- */
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