diff options
Diffstat (limited to 'cpu/beta_cpu/btb.cc')
| -rw-r--r-- | cpu/beta_cpu/btb.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/cpu/beta_cpu/btb.cc b/cpu/beta_cpu/btb.cc index b49f30482..bceaa66d1 100644 --- a/cpu/beta_cpu/btb.cc +++ b/cpu/beta_cpu/btb.cc @@ -50,6 +50,8 @@ DefaultBTB::valid(const Addr &inst_PC) Addr inst_tag = getTag(inst_PC); + assert(btb_idx < numEntries); + if (btb[btb_idx].valid && inst_tag == btb[btb_idx].tag) { return true; } else { @@ -67,6 +69,8 @@ DefaultBTB::lookup(const Addr &inst_PC) Addr inst_tag = getTag(inst_PC); + assert(btb_idx < numEntries); + if (btb[btb_idx].valid && inst_tag == btb[btb_idx].tag) { return btb[btb_idx].target; } else { @@ -79,6 +83,8 @@ DefaultBTB::update(const Addr &inst_PC, const Addr &target) { unsigned btb_idx = getIndex(inst_PC); + assert(btb_idx < numEntries); + btb[btb_idx].valid = true; btb[btb_idx].target = target; btb[btb_idx].tag = getTag(inst_PC); |