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-rw-r--r--src/cpu/o3/fetch.hh17
1 files changed, 8 insertions, 9 deletions
diff --git a/src/cpu/o3/fetch.hh b/src/cpu/o3/fetch.hh
index bb0057e7c..7645a226c 100644
--- a/src/cpu/o3/fetch.hh
+++ b/src/cpu/o3/fetch.hh
@@ -227,7 +227,7 @@ class DefaultFetch
* @param next_NPC Used for ISAs which use delay slots.
* @return Whether or not a branch was predicted as taken.
*/
- bool lookupAndUpdateNextPC(DynInstPtr &inst, Addr &next_PC, Addr &next_NPC);
+ bool lookupAndUpdateNextPC(DynInstPtr &inst, Addr &next_PC, Addr &next_NPC, Addr &next_MicroPC);
/**
* Fetches the cache line that contains fetch_PC. Returns any
@@ -242,12 +242,14 @@ class DefaultFetch
bool fetchCacheLine(Addr fetch_PC, Fault &ret_fault, unsigned tid);
/** Squashes a specific thread and resets the PC. */
- inline void doSquash(const Addr &new_PC, const Addr &new_NPC, unsigned tid);
+ inline void doSquash(const Addr &new_PC, const Addr &new_NPC,
+ const Addr &new_MicroPC, unsigned tid);
/** Squashes a specific thread and resets the PC. Also tells the CPU to
* remove any instructions between fetch and decode that should be sqaushed.
*/
void squashFromDecode(const Addr &new_PC, const Addr &new_NPC,
+ const Addr &new_MicroPC,
const InstSeqNum &seq_num, unsigned tid);
/** Checks if a thread is stalled. */
@@ -263,6 +265,7 @@ class DefaultFetch
* squash should be the commit stage.
*/
void squash(const Addr &new_PC, const Addr &new_NPC,
+ const Addr &new_MicroPC,
const InstSeqNum &seq_num, unsigned tid);
/** Ticks the fetch stage, processing all inputs signals and fetching
@@ -346,16 +349,12 @@ class DefaultFetch
/** Per-thread fetch PC. */
Addr PC[Impl::MaxThreads];
+ /** Per-thread fetch micro PC. */
+ Addr microPC[Impl::MaxThreads];
+
/** Per-thread next PC. */
Addr nextPC[Impl::MaxThreads];
- /** Per-thread next Next PC.
- * This is not a real register but is used for
- * architectures that use a branch-delay slot.
- * (such as MIPS or Sparc)
- */
- Addr nextNPC[Impl::MaxThreads];
-
/** Memory request used to access cache. */
RequestPtr memReq[Impl::MaxThreads];