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-rw-r--r--src/arch/x86/isa/formats/unknown.isa3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/arch/x86/isa/formats/unknown.isa b/src/arch/x86/isa/formats/unknown.isa
index 9b283b5d7..11751e861 100644
--- a/src/arch/x86/isa/formats/unknown.isa
+++ b/src/arch/x86/isa/formats/unknown.isa
@@ -77,8 +77,7 @@ output exec {{
Fault Unknown::execute(%(CPU_exec_context)s *xc,
Trace::InstRecord *traceData) const
{
- warn("No instructions are implemented for X86!\n");
- return NoFault;
+ return new InvalidOpcode();
}
}};