From 750f5a0a67ccbce9b11c8ad308863be87ce89fbc Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 19 Apr 2009 04:56:20 -0700
Subject: X86: Implement a locking version of XOR.

---
 src/arch/x86/isa/insts/general_purpose/logical.py | 32 +++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'src/arch/x86')

diff --git a/src/arch/x86/isa/insts/general_purpose/logical.py b/src/arch/x86/isa/insts/general_purpose/logical.py
index 97b09fb01..c57d306dc 100644
--- a/src/arch/x86/isa/insts/general_purpose/logical.py
+++ b/src/arch/x86/isa/insts/general_purpose/logical.py
@@ -170,6 +170,23 @@ def macroop XOR_P_I
     st t1, seg, riprel, disp
 };
 
+def macroop XOR_LOCKED_M_I
+{
+    limm t2, imm
+    ldstl t1, seg, sib, disp
+    xor t1, t1, t2, flags=(OF,SF,ZF,PF,CF)
+    stul t1, seg, sib, disp
+};
+
+def macroop XOR_LOCKED_P_I
+{
+    limm t2, imm
+    rdip t7
+    ldstl t1, seg, riprel, disp
+    xor t1, t1, t2, flags=(OF,SF,ZF,PF,CF)
+    stul t1, seg, riprel, disp
+};
+
 def macroop XOR_M_R
 {
     ldst t1, seg, sib, disp
@@ -185,6 +202,21 @@ def macroop XOR_P_R
     st t1, seg, riprel, disp
 };
 
+def macroop XOR_LOCKED_M_R
+{
+    ldstl t1, seg, sib, disp
+    xor t1, t1, reg, flags=(OF,SF,ZF,PF,CF)
+    stul t1, seg, sib, disp
+};
+
+def macroop XOR_LOCKED_P_R
+{
+    rdip t7
+    ldstl t1, seg, riprel, disp
+    xor t1, t1, reg, flags=(OF,SF,ZF,PF,CF)
+    stul t1, seg, riprel, disp
+};
+
 def macroop XOR_R_M
 {
     ld t1, seg, sib, disp
-- 
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