diff --git a/system/ucode.txt b/system/ucode.txt
index c5ec9dc..a530d21 100644
--- a/system/ucode.txt
+++ b/system/ucode.txt
@@ -1,3 +1,21 @@
+/* ucode.txt - The contents of the microcode rom for the 9086 cpu
+
+   This file is part of the 9086 project.
+
+   Copyright (c) 2023 Efthymios Kritikos
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 //a1f: ALU 1 operation (function)
 //    000:ALU_OP_ADD
diff --git a/system/ucode_header.v b/system/ucode_header.v
index bcb098e..d36a08f 100644
--- a/system/ucode_header.v
+++ b/system/ucode_header.v
@@ -1,3 +1,22 @@
+/* ucode_header.v - Labels and global information useful to modules interfacing with the microcode
+
+   This file is part of the 9086 project.
+
+   Copyright (c) 2023 Efthymios Kritikos
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
 `define UCODE_ADDR_BITS 5
 `define UCODE_DATA_BITS 32
 `define UCODE_SIZE 4