From 8b9b85e92cde81ef9eb0cf6595be59c96fd13f97 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Mon, 15 Nov 2010 19:37:03 -0800
Subject: O3: Make O3 support variably lengthed instructions.

---
 src/arch/power/predecoder.hh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/arch/power')

diff --git a/src/arch/power/predecoder.hh b/src/arch/power/predecoder.hh
index b1f2b6e38..431c5d1b7 100644
--- a/src/arch/power/predecoder.hh
+++ b/src/arch/power/predecoder.hh
@@ -51,10 +51,11 @@ class Predecoder
 
     // The extended machine instruction being generated
     ExtMachInst emi;
+    bool emiIsReady;
 
   public:
     Predecoder(ThreadContext * _tc)
-        : tc(_tc)
+        : tc(_tc), emiIsReady(false)
     {
     }
 
@@ -78,6 +79,7 @@ class Predecoder
     void
     reset()
     {
+        emiIsReady = false;
     }
 
     // Use this to give data to the predecoder. This should be used
@@ -86,6 +88,7 @@ class Predecoder
     moreBytes(const PCState &pc, Addr fetchPC, MachInst inst)
     {
         emi = inst;
+        emiIsReady = true;
     }
 
     // Use this to give data to the predecoder. This should be used
@@ -105,13 +108,14 @@ class Predecoder
     bool
     extMachInstReady()
     {
-        return true;
+        return emiIsReady;
     }
 
     // This returns a constant reference to the ExtMachInst to avoid a copy
     const ExtMachInst &
     getExtMachInst(PCState &pcState)
     {
+        emiIsReady = false;
         return emi;
     }
 };
-- 
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