diff -r b08f96e894b7 -r 924c1754da48 build_opts/X86_FS
--- a/build_opts/X86_FS	Mon Jul 11 04:55:13 2011 -0700
+++ b/build_opts/X86_FS	Mon Jul 11 05:11:36 2011 -0700
@@ -1,4 +1,4 @@
 TARGET_ISA = 'x86'
-CPU_MODELS = 'AtomicSimpleCPU,TimingSimpleCPU'
+CPU_MODELS = 'AtomicSimpleCPU,O3CPU,TimingSimpleCPU'
 FULL_SYSTEM = 1
 PROTOCOL = 'MI_example'