X86: Implement a locking version of XCHG.

2009-04-19 04:56:22 -07:00 · 2009-04-19 04:56:22 -07:00 · b8f81c62a2
parent 750f5a0a67
commit b8f81c62a2
1 changed files with 15 additions and 0 deletions
--- a/src/arch/x86/isa/insts/general_purpose/data_transfer/xchg.py
+++ b/src/arch/x86/isa/insts/general_purpose/data_transfer/xchg.py
@ -95,4 +95,19 @@ def macroop XCHG_P_R
    st reg, seg, riprel, disp
    mov reg, reg, t1
 };
+
+def macroop XCHG_LOCKED_M_R
+{
+    ldstl t1, seg, sib, disp
+    stul reg, seg, sib, disp
+    mov reg, reg, t1
+};
+
+def macroop XCHG_LOCKED_P_R
+{
+    rdip t7
+    ldstl t1, seg, riprel, disp
+    stul reg, seg, riprel, disp
+    mov reg, reg, t1
+};
 '''