diff options
Diffstat (limited to 'src/sim')
| -rw-r--r-- | src/sim/if.cc | 4 | ||||
| -rw-r--r-- | src/sim/mm.cc | 10 |
2 files changed, 9 insertions, 5 deletions
diff --git a/src/sim/if.cc b/src/sim/if.cc index 85fb27f..4ab7f3e 100644 --- a/src/sim/if.cc +++ b/src/sim/if.cc @@ -26,10 +26,12 @@ InstrDTO *IF::advance(Response p) void IF::advance_helper() { Response r; + int i; signed int bits; if (this->curr_instr == nullptr) { - r = this->storage->read_word(this->id, this->pc, bits); + i = this->storage->read_word(this, this->pc, bits); + r = i ? OK : STALLED; if (r == OK) { this->curr_instr = new InstrDTO(); this->curr_instr->set_instr_bits(bits); diff --git a/src/sim/mm.cc b/src/sim/mm.cc index 07a362b..a9a60c2 100644 --- a/src/sim/mm.cc +++ b/src/sim/mm.cc @@ -9,11 +9,12 @@ MM::MM(Stage *stage) : Stage(stage) { this->id = MEM; } void MM::advance_helper() { signed int data; + int i; switch (this->curr_instr->get_mnemonic()) { case LOAD: - this->status = this->storage->read_word( - this->id, this->curr_instr->get_s1(), data); + i = this->storage->read_word(this, this->curr_instr->get_s1(), data); + this->status = i ? OK : STALLED; if (this->status == OK) { this->curr_instr->set_s1(data); } else @@ -22,8 +23,9 @@ void MM::advance_helper() case STORE: // TODO signed issues, we aren't wrapping addresses - this->status = this->storage->write_word( - this->id, this->curr_instr->get_s2(), this->curr_instr->get_s1()); + i = this->storage->write_word( + this, this->curr_instr->get_s2(), this->curr_instr->get_s1()); + this->status = i ? OK : STALLED; if (this->status != OK) { this->status = STALLED; } |