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Signed-off-by: Robert Winkler <rwinkler@antmicro.com>

Author: rw1nkler

compat/sphinxcontrib_verilog_diagrams/__init__.py

@@ -1,11 +1,11 @@
+import warnings
 import sphinxcontrib_hdl_diagrams
 
 def setup(app):
-    print("")
-    print("WARNING:")
-    print("  sphinxcontrib-verilog-diagram extension is depreciated!")
-    print("  Please use sphinxcontrib-hdl-diagrams instead:")
-    print("  https://github.com/SymbiFlow/sphinxcontrib-hdl-diagrams")
-    print("")
+    deprecation_msg = """
+    sphinxcontrib-verilog-diagram extension is depreciated!
+    Please use sphinxcontrib-hdl-diagrams instead:
+    https://github.com/SymbiFlow/sphinxcontrib-hdl-diagrams"""
+    warnings.warn(deprecation_msg, DeprecationWarning)
 
     return sphinxcontrib_hdl_diagrams.setup(app)

docs/code/nmigen/counter.py

@@ -1,3 +1,20 @@
+# Copyright (C) 2020  The SymbiFlow Authors.
+#
+# 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
+#
+#     https://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.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
 from nmigen import *
 from nmigen.back import rtlil