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Drivers/CMSIS/NN/Source/ActivationFunctions/arm_relu6_s8.c

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+/*
+ * Copyright (C) 2010-2019 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_relu6_s8.c
+ * Description:  Basic s8 version of ReLU6
+ *
+ * $Date:        09. October 2020
+ * $Revision:    V.1.0.1
+ *
+ * Target Processor:  Cortex-M cores
+ *
+ * -------------------------------------------------------------------- */
+
+#include "arm_nnfunctions.h"
+#include "arm_nnsupportfunctions.h"
+
+/**
+ *  @ingroup groupNN
+ */
+
+/**
+ * @addtogroup Acti
+ * @{
+ */
+
+/*
+ *  Basic ReLU6 function
+ *
+ * Refer to header file for details.
+ *
+ */
+
+void arm_relu6_s8(q7_t *data, uint16_t size)
+{
+    int32_t i;
+
+    for (i = 0; i < size; i++)
+    {
+        int32_t ip = data[i];
+
+        ip = MAX(ip, 0);
+        data[i] = MIN(ip, 6);
+    }
+}
+
+/**
+ * @} end of Acti group
+ */