1 files changed, 2 insertions, 0 deletions
diff --git a/src/cpu.rs b/src/cpu.rs
index b009160..8437d10 100644
--- a/src/cpu.rs
+++ b/src/cpu.rs
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
 //! Implementation of the MOS 6502 CPU.
 
 use bitflags::bitflags;