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#include "mm.h"
#include "accessor.h"
#include "instrDTO.h"
#include "response.h"
#include "stage.h"
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:
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
this->status = STALLED;
break;
case PUSH:
case STORE:
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;
}
break;
case POP:
i = this->storage->read_word(this, this->curr_instr->get_s3(), data);
this->status = i ? OK : STALLED;
if (this->status == OK) {
this->curr_instr->set_s3(data);
} else
this->status = STALLED;
break;
default:
this->status = OK;
}
}
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