Rolling 20220526

code/components/esp-nn/src/activation_functions/esp_nn_relu_ansi.c

@@ -0,0 +1,30 @@
+// Copyright 2020-2021 Espressif Systems (Shanghai) PTE LTD
+//
+// 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
+//
+//     http://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.
+
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <common_functions.h>
+
+void esp_nn_relu6_s8_ansi(int8_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);
+    }
+}