1 files changed, 75 insertions, 0 deletions
diff --git a/Drivers/CMSIS/NN/Source/ConcatenationFunctions/arm_concatenation_s8_z.c b/Drivers/CMSIS/NN/Source/ConcatenationFunctions/arm_concatenation_s8_z.c
new file mode 100644
index 0000000..3bd84f2
--- /dev/null
+++ b/Drivers/CMSIS/NN/Source/ConcatenationFunctions/arm_concatenation_s8_z.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2010-2021 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_concatenation_s8_z.c
+ * Description:  s8 version of concatenation along the Z axis
+ *
+ * $Date:        October 2019
+ * $Revision:    V.1.0.0
+ *
+ * Target Processor:  Cortex-M cores
+ *
+ * -------------------------------------------------------------------- */
+
+#include "arm_nnfunctions.h"
+#include "arm_nnsupportfunctions.h"
+
+/**
+ *  @ingroup groupNN
+ */
+
+/**
+ * @addtogroup Concatenation
+ * @{
+ */
+
+/*
+ *  s8 version of concatenation along the Z axis
+ *
+ * Refer to header file for details.
+ *
+ */
+void arm_concatenation_s8_z(const int8_t *input,
+                            const uint16_t input_x,
+                            const uint16_t input_y,
+                            const uint16_t input_z,
+                            const uint16_t input_w,
+                            int8_t *output,
+                            const uint16_t output_z,
+                            const uint32_t offset_z)
+{
+    const uint32_t input_copy_size = input_x * input_y * input_z;
+    const uint32_t output_stride = input_x * input_y * output_z;
+
+    output += offset_z * (input_x * input_y);
+
+    uint32_t i;
+
+    for (i = 0; i < input_w; ++i)
+    {
+        arm_memcpy_q7(output, input, input_copy_size);
+        input += input_copy_size;
+        output += output_stride;
+    }
+}
+
+/**
+ * @} end of Concatenation group
+ */