Add GPLv3 license

1 files changed, 16 insertions, 0 deletions

diff --git a/src/isa/mod.rs b/src/isa/mod.rs
index b7ac405..b2961ce 100644
--- a/src/isa/mod.rs
+++ b/src/isa/mod.rs
@@ -1,3 +1,19 @@
+// Copyright 2015 David Li
+// This file is part of rustv.
+
+// rustv 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.
+
+// rustv 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 rustv.  If not, see <http://www.gnu.org/licenses/>.
+
 pub mod opcodes;
 pub mod funct3;
 pub mod funct7;