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// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
* QtMips - MIPS 32-bit Architecture Subset Simulator
*
* Implemented to support following courses:
*
* B35APO - Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b35apo
*
* B4M35PAP - Advanced Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
*
* Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
* Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
******************************************************************************/
#include "tst_machine.h"
#include "instruction.h"
using namespace machine;
// Test that we are correctly encoding instructions in constructor
void MachineTests::instruction() {
QCOMPARE(Instruction(0x0), Instruction());
QCOMPARE(Instruction(0x4432146), Instruction(1, 2, 3, 4, 5, 6));
QCOMPARE(Instruction(0x4430004), Instruction(1, 2, 3, 4));
QCOMPARE(Instruction(0x4000002), Instruction(1, 2));
}
// Test that we are correctly decoding instruction fields
void MachineTests::instruction_access() {
Instruction i(0xffffffff);
QCOMPARE(i.data(), (std::uint32_t) 0xffffffff);
QCOMPARE(i.opcode(), (std::uint8_t) 0x3f);
QCOMPARE(i.rs(), (std::uint8_t) 0x1f);
QCOMPARE(i.rt(), (std::uint8_t) 0x1f);
QCOMPARE(i.rd(), (std::uint8_t) 0x1f);
QCOMPARE(i.shamt(), (std::uint8_t) 0x1f);
QCOMPARE(i.funct(), (std::uint8_t) 0x3f);
QCOMPARE(i.immediate(), (std::uint16_t) 0xffff);
QCOMPARE(i.address(), (std::uint32_t) 0x3ffffff);
}
// TODO test to_str
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