1 files changed, 4 insertions, 7 deletions
diff --git a/instruction.h b/instruction.h
index 5a268d3..8d9c366 100644
--- a/instruction.h
+++ b/instruction.h
@@ -34,13 +34,10 @@ struct r_type {
 	 * Some R-Type instructions embed a small immediate value in the
 	 * low-order bits of OPX.
 	 */
-	union {
-		uint16_t opx11:11;
-		struct {
-			uint8_t imm5:5;
-			uint8_t opx6:6;
-		} __packed;
-	} opx;
+	struct {
+		uint8_t imm5:5;
+		uint8_t opx6:6;
+	} __packed;
 	uint8_t c:5;
 	uint8_t b:5;
 	uint8_t a:5;