From 9a96ebf368cace048654186ae1ff8b4fb6672bb7 Mon Sep 17 00:00:00 2001
From: Kevin Lim <ktlim@umich.edu>
Date: Thu, 11 May 2006 14:12:34 -0400
Subject: [PATCH] Separate out result being ready and the instruction being
 complete.

--HG--
extra : convert_revision : 9f17af114bf639f8fb61896e49fa714932c081d7
---
 cpu/base_dyn_inst.cc |  1 +
 cpu/base_dyn_inst.hh | 41 +++++++++++++++++++++++++++++++++++++++--
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/cpu/base_dyn_inst.cc b/cpu/base_dyn_inst.cc
index 6ce9b4455..7ab760ae3 100644
--- a/cpu/base_dyn_inst.cc
+++ b/cpu/base_dyn_inst.cc
@@ -101,6 +101,7 @@ BaseDynInst<Impl>::initVars()
     readyRegs = 0;
 
     completed = false;
+    resultReady = false;
     canIssue = false;
     issued = false;
     executed = false;
diff --git a/cpu/base_dyn_inst.hh b/cpu/base_dyn_inst.hh
index ecad6ad64..18978142d 100644
--- a/cpu/base_dyn_inst.hh
+++ b/cpu/base_dyn_inst.hh
@@ -117,6 +117,11 @@ class BaseDynInst : public FastAlloc, public RefCounted
     Fault write(T data, Addr addr, unsigned flags,
                         uint64_t *res);
 
+    // @todo: Probably should not have this function in the DynInst.
+    template <class T>
+    bool snoop(MemReqPtr &req, T &data)
+    { return cpu->snoop(req, data); }
+
     void prefetch(Addr addr, unsigned flags);
     void writeHint(Addr addr, int size, unsigned flags);
     Fault copySrcTranslate(Addr src);
@@ -139,6 +144,9 @@ class BaseDynInst : public FastAlloc, public RefCounted
     /** Is the instruction completed. */
     bool completed;
 
+    /** Is the instruction's result ready. */
+    bool resultReady;
+
     /** Can this instruction issue. */
     bool canIssue;
 
@@ -187,7 +195,7 @@ class BaseDynInst : public FastAlloc, public RefCounted
     /** Pointer to the FullCPU object. */
     FullCPU *cpu;
 
-    /** Pointer to the exec context.  Will not exist in the final version. */
+    /** Pointer to the exec context. */
     ImplState *thread;
 
     /** The kind of fault this instruction has generated. */
@@ -353,6 +361,7 @@ class BaseDynInst : public FastAlloc, public RefCounted
     bool isWriteBarrier() const { return staticInst->isWriteBarrier(); }
     bool isNonSpeculative() const { return staticInst->isNonSpeculative(); }
     bool isQuiesce() const { return staticInst->isQuiesce(); }
+    bool isUnverifiable() const { return staticInst->isUnverifiable(); }
 
     /** Temporarily sets this instruction as a serialize before instruction. */
     void setSerializeBefore() { serializeBefore = true; }
@@ -423,6 +432,26 @@ class BaseDynInst : public FastAlloc, public RefCounted
     /** Returns the result of a floating point (double) instruction. */
     double readDoubleResult() { return instResult.dbl; }
 
+    void setIntReg(const StaticInst *si, int idx, uint64_t val)
+    {
+        instResult.integer = val;
+    }
+
+    void setFloatRegSingle(const StaticInst *si, int idx, float val)
+    {
+        instResult.fp = val;
+    }
+
+    void setFloatRegDouble(const StaticInst *si, int idx, double val)
+    {
+        instResult.dbl = val;
+    }
+
+    void setFloatRegInt(const StaticInst *si, int idx, uint64_t val)
+    {
+        instResult.integer = val;
+    }
+
     //Push to .cc file.
     /** Records that one of the source registers is ready. */
     void markSrcRegReady();
@@ -444,6 +473,10 @@ class BaseDynInst : public FastAlloc, public RefCounted
     /** Returns whether or not this instruction is completed. */
     bool isCompleted() const { return completed; }
 
+    void setResultReady() { resultReady = true; }
+
+    bool isResultReady() const { return resultReady; }
+
     /** Sets this instruction as ready to issue. */
     void setCanIssue() { canIssue = true; }
 
@@ -540,7 +573,11 @@ class BaseDynInst : public FastAlloc, public RefCounted
     const Addr readPC() const { return PC; }
 
     /** Set the next PC of this instruction (its actual target). */
-    void setNextPC(uint64_t val) { nextPC = val; }
+    void setNextPC(uint64_t val)
+    {
+        nextPC = val;
+//        instResult.integer = val;
+    }
 
     void setASID(short addr_space_id) { asid = addr_space_id; }
 
-- 
2.30.2