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authorKorey Sewell <ksewell@umich.edu>2006-08-31 20:51:30 -0400
committerKorey Sewell <ksewell@umich.edu>2006-08-31 20:51:30 -0400
commit82862e0e15fbb55e022823d5ea5cc8470e330c22 (patch)
treeb1c2184d5fe9d5b38cf494365d368c11a99acdd1 /src/cpu/o3/decode_impl.hh
parenta8a7ce2b886ca2571f9470a48a4f12302f9cc830 (diff)
downloadgem5-82862e0e15fbb55e022823d5ea5cc8470e330c22.tar.xz
add ISA_HAS_DELAY_SLOT directive instead of "#if THE_ISA == ALPHA_ISA" throughout CPU models
src/arch/alpha/isa_traits.hh: src/arch/mips/isa_traits.hh: src/arch/sparc/isa_traits.hh: define 'ISA_HAS_DELAY_SLOT' src/cpu/base_dyn_inst.hh: src/cpu/o3/bpred_unit_impl.hh: src/cpu/o3/commit_impl.hh: src/cpu/o3/cpu.cc: src/cpu/o3/cpu.hh: src/cpu/o3/decode_impl.hh: src/cpu/o3/fetch_impl.hh: src/cpu/o3/iew_impl.hh: src/cpu/o3/inst_queue_impl.hh: src/cpu/o3/rename_impl.hh: src/cpu/simple/base.cc: use ISA_HAS_DELAY_SLOT instead of THE_ISA == ALPHA_ISA --HG-- extra : convert_revision : 24c7460d9391e8d443c9fe08e17c331ae8e9c36a
Diffstat (limited to 'src/cpu/o3/decode_impl.hh')
-rw-r--r--src/cpu/o3/decode_impl.hh18
1 files changed, 9 insertions, 9 deletions
diff --git a/src/cpu/o3/decode_impl.hh b/src/cpu/o3/decode_impl.hh
index 160845378..80b6cc4c9 100644
--- a/src/cpu/o3/decode_impl.hh
+++ b/src/cpu/o3/decode_impl.hh
@@ -282,12 +282,7 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
toFetch->decodeInfo[tid].doneSeqNum = inst->seqNum;
toFetch->decodeInfo[tid].squash = true;
toFetch->decodeInfo[tid].nextPC = inst->branchTarget();
-#if THE_ISA == ALPHA_ISA
- toFetch->decodeInfo[tid].branchTaken =
- inst->readNextPC() != (inst->readPC() + sizeof(TheISA::MachInst));
-
- InstSeqNum squash_seq_num = inst->seqNum;
-#else
+#if ISA_HAS_DELAY_SLOT
toFetch->decodeInfo[tid].branchTaken = inst->readNextNPC() !=
(inst->readNextPC() + sizeof(TheISA::MachInst));
@@ -295,6 +290,11 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
squashAfterDelaySlot[tid] = false;
InstSeqNum squash_seq_num = bdelayDoneSeqNum[tid];
+#else
+ toFetch->decodeInfo[tid].branchTaken =
+ inst->readNextPC() != (inst->readPC() + sizeof(TheISA::MachInst));
+
+ InstSeqNum squash_seq_num = inst->seqNum;
#endif
// Might have to tell fetch to unblock.
@@ -317,7 +317,7 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
// insts in them.
while (!insts[tid].empty()) {
-#if THE_ISA != ALPHA_ISA
+#if ISA_HAS_DELAY_SLOT
if (insts[tid].front()->seqNum <= squash_seq_num) {
DPRINTF(Decode, "[tid:%i]: Cannot remove incoming decode "
"instructions before delay slot [sn:%i]. %i insts"
@@ -331,7 +331,7 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
while (!skidBuffer[tid].empty()) {
-#if THE_ISA != ALPHA_ISA
+#if ISA_HAS_DELAY_SLOT
if (skidBuffer[tid].front()->seqNum <= squash_seq_num) {
DPRINTF(Decode, "[tid:%i]: Cannot remove skidBuffer "
"instructions before delay slot [sn:%i]. %i insts"
@@ -765,7 +765,7 @@ DefaultDecode<Impl>::decodeInsts(unsigned tid)
// Might want to set some sort of boolean and just do
// a check at the end
-#if THE_ISA == ALPHA_ISA
+#if !ISA_HAS_DELAY_SLOT
squash(inst, inst->threadNumber);
inst->setPredTarg(inst->branchTarget());
break;