diff --git a/src/arch/x86/isa/insts/general_purpose/logical.py b/src/arch/x86/isa/insts/general_purpose/logical.py
index c57d306dc5..c618ce4d7b 100644
--- a/src/arch/x86/isa/insts/general_purpose/logical.py
+++ b/src/arch/x86/isa/insts/general_purpose/logical.py
@@ -340,4 +340,21 @@ def macroop NOT_P
     xor t2, t2, t1
     st t2, seg, riprel, disp
 };
+
+def macroop NOT_LOCKED_M
+{
+    limm t1, -1
+    ldstl t2, seg, sib, disp
+    xor t2, t2, t1
+    stul t2, seg, sib, disp
+};
+
+def macroop NOT_LOCKED_P
+{
+    limm t1, -1
+    rdip t7
+    ldstl t2, seg, riprel, disp
+    xor t2, t2, t1
+    stul t2, seg, riprel, disp
+};
 '''