From baacedcc858d8d4857282cc7fb1881a11048a5bc Mon Sep 17 00:00:00 2001 From: bd Date: Tue, 22 Apr 2025 20:55:05 -0400 Subject: Remove subfolders --- src/mm.cc | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/mm.cc (limited to 'src/mm.cc') diff --git a/src/mm.cc b/src/mm.cc new file mode 100644 index 0000000..3df1578 --- /dev/null +++ b/src/mm.cc @@ -0,0 +1,60 @@ +// 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 . + +#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->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; + } +} -- cgit v1.2.3