1 files changed, 62 insertions, 0 deletions
diff --git a/src/mm.cc b/src/mm.cc
new file mode 100644
index 0000000..ac77433
--- /dev/null
+++ b/src/mm.cc
@@ -0,0 +1,62 @@
+// Simulator for the RISC-V[ECTOR] mini-ISA
+// Copyright (C) 2025 Siddarth Suresh
+// Copyright (C) 2025 bdunahu
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "mm.h"
+#include "instrDTO.h"
+#include "response.h"
+#include "stage.h"
+
+void MM::advance_helper()
+{
+	signed int data;
+	int i;
+
+	switch (this->curr_instr->mnemonic) {
+	case LOAD:
+		i = this->storage->read_word(
+			this, this->curr_instr->operands.integer.slot_one, data);
+		this->status = i ? OK : STALLED;
+		if (this->status == OK) {
+			this->curr_instr->operands.integer.slot_one = data;
+		} else
+			this->status = STALLED;
+		break;
+
+	case PUSH:
+	case STORE:
+		i = this->storage->write_word(
+			this, this->curr_instr->operands.integer.slot_two,
+			this->curr_instr->operands.integer.slot_one);
+		this->status = i ? OK : STALLED;
+		if (this->status != OK) {
+			this->status = STALLED;
+		}
+		break;
+
+	case POP:
+		i = this->storage->read_word(this, this->curr_instr->operands.integer.slot_three, data);
+		this->status = i ? OK : STALLED;
+		if (this->status == OK) {
+			this->curr_instr->operands.integer.slot_three = data;
+		} else
+			this->status = STALLED;
+		break;
+
+	default:
+		this->status = OK;
+	}
+}