Clarify a comment.

diff --git a/none/tests/s390x/disasm-test/opcode.c b/none/tests/s390x/disasm-test/opcode.c
index 3623e8ecb4fdcae618e9ef9e551d49cb29b0bea6..12af90f6a71c4dc0f87ea53d8413b515824cc16d 100644 (file)
--- a/none/tests/s390x/disasm-test/opcode.c
+++ b/none/tests/s390x/disasm-test/opcode.c
@@ -118,7 +118,7 @@
 */
 
 /* List of all supported opcodes in the order as defined in
-   Principles of Operations. */
+   Principles of Operations -- Fourteenth Edition (May, 2022). */
 
 static const char *opcodes[] = {
    // Chapter 7:  General Instructions