diff --git a/src/instructions.h b/src/instructions.h
index 27b1682..0bc589c 100644
--- a/src/instructions.h
+++ b/src/instructions.h
@@ -79,7 +79,23 @@ enum INSTRUCTIONS{
     NEGC_R_R,
     SUB_R_R,
     SUBC_R_R,
-    SUBV_R_R
+    SUBV_R_R,
+
+    //Logic Operation Instructions
+    AND_R_R,
+    AND_B_R,
+    ANDB_B_R0GBR,
+    NOT_R_R,
+    OR_R_R,
+    OR_B_R,
+    ORB_B_R0GBR,
+    TASB_aR,
+    TST_R_R,
+    TST_B_R,
+    TSTB_B_R0GBR,
+    XOR_R_R,
+    XOR_B_R,
+    XORB_B_R0GBR
 
 };