diff options
Diffstat (limited to 'src/sim/mm.cc')
| -rw-r--r-- | src/sim/mm.cc | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/sim/mm.cc b/src/sim/mm.cc index 2b73207..cd85056 100644 --- a/src/sim/mm.cc +++ b/src/sim/mm.cc @@ -6,4 +6,24 @@ MM::MM(Stage *stage) : Stage(stage) { this->id = MEM; } -void MM::advance_helper() {} +void MM::advance_helper() { + Response r; + signed int data; + if(this->curr_instr){ + if (this->curr_instr->get_mnemonic() == LOAD) { + r = this->storage->read_word(this->id, this->curr_instr->get_s1(), data); + if(r == OK){ + this->status = OK; + this->curr_instr->set_s2(data); + } + } else if (this->curr_instr->get_mnemonic() == STORE) { + r = this->storage->write_word(this->id, this->curr_instr->get_s2(), this->curr_instr->get_s1()); + if(r == OK){ + this->status = OK; + } + } else { + // Mem has no work so just forward the instruction to WB + this->status = OK; + } + } +} |