diff -r 09745e0c3dd9 -r cce762dec606 src/arch/x86/insts/microop.hh
--- a/src/arch/x86/insts/microop.hh	Fri Sep 02 17:04:00 2011 -0700
+++ b/src/arch/x86/insts/microop.hh	Sun Sep 04 03:29:23 2011 -0700
@@ -100,7 +100,13 @@
             X86ISA::X86StaticInst(mnem, _machInst, __opClass),
             instMnem(_instMnem)
         {
-            flags |= setFlags;
+            const int ChunkSize = sizeof(unsigned long);
+            const int Chunks = sizeof(setFlags) / ChunkSize;
+
+            for (int i = 0; i < Chunks; i++) {
+                unsigned shift = i * ChunkSize * 8;
+                flags |= (std::bitset<NumFlags>(setFlags >> shift) << shift);
+            }
         }
 
         std::string generateDisassembly(Addr pc,