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#include "mainwindow.h"
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) {
machine = nullptr;
corescene = nullptr;
settings = new QSettings("CTU", "QtMips");
ui = new Ui::MainWindow();
ui->setupUi(this);
setWindowTitle("QtMips");
// Prepare empty core view
coreview = new CoreView(this);
this->setCentralWidget(coreview);
// Create/prepare other widgets
ndialog = new NewDialog(this, settings);
registers = new RegistersDock(this);
registers->hide();
program = new ProgramDock(this);
program->hide();
memory = new MemoryDock(this);
memory->hide();
// Execution speed actions
speed_group = new QActionGroup(this);
speed_group->addAction(ui->ips1);
speed_group->addAction(ui->ips5);
speed_group->addAction(ui->ips10);
speed_group->addAction(ui->ipsUnlimited);
ui->ips1->setChecked(true);
// Connect signals from menu
connect(ui->actionExit, SIGNAL(triggered(bool)), this, SLOT(close()));
connect(ui->actionNew, SIGNAL(triggered(bool)), this, SLOT(new_machine()));
connect(ui->actionReload, SIGNAL(triggered(bool)), this, SLOT(machine_reload()));
connect(ui->actionRegisters, SIGNAL(triggered(bool)), this, SLOT(show_registers()));
connect(ui->actionProgram_memory, SIGNAL(triggered(bool)), this, SLOT(show_program()));
connect(ui->actionMemory, SIGNAL(triggered(bool)), this, SLOT(show_memory()));
connect(ui->ips1, SIGNAL(toggled(bool)), this, SLOT(set_speed()));
connect(ui->ips5, SIGNAL(toggled(bool)), this, SLOT(set_speed()));
connect(ui->ips10, SIGNAL(toggled(bool)), this, SLOT(set_speed()));
connect(ui->ipsUnlimited, SIGNAL(toggled(bool)), this, SLOT(set_speed()));
// Restore application state from settings
restoreState(settings->value("windowState").toByteArray());
restoreGeometry(settings->value("windowGeometry").toByteArray());
}
MainWindow::~MainWindow() {
settings->sync();
delete settings;
if (corescene != nullptr)
delete corescene;
if (coreview != nullptr)
delete coreview;
delete ndialog;
delete registers;
delete program;
delete memory;
delete ui;
if (machine != nullptr)
delete machine;
}
void MainWindow::start() {
this->show();
ndialog->show();
}
void MainWindow::create_core(const machine::MachineConfig &config) {
// Create machine
machine::QtMipsMachine *new_machine = new machine::QtMipsMachine(&config);
// Remove old machine
if (machine != nullptr)
delete machine;
machine = new_machine;
// Create machine view
if (corescene != nullptr)
delete corescene;
if (config.pipelined()) {
corescene = new CoreViewScenePipelined(coreview, machine);
} else {
corescene = new CoreViewSceneSimple(coreview, machine);
}
coreview->setScene(corescene);
set_speed(); // Update machine speed to current settings
// Connect machine signals and slots
connect(ui->actionRun, SIGNAL(triggered(bool)), machine, SLOT(play()));
connect(ui->actionPause, SIGNAL(triggered(bool)), machine, SLOT(pause()));
connect(ui->actionStep, SIGNAL(triggered(bool)), machine, SLOT(step()));
connect(ui->actionRestart, SIGNAL(triggered(bool)), machine, SLOT(restart()));
connect(machine, SIGNAL(status_change(machine::QtMipsMachine::Status)), this, SLOT(machine_status(machine::QtMipsMachine::Status)));
connect(machine, SIGNAL(program_exit()), this, SLOT(machine_exit()));
connect(machine, SIGNAL(program_trap(machine::QtMipsException&)), this, SLOT(machine_trap(machine::QtMipsException&)));
// Connect scene signals to actions
connect(corescene, SIGNAL(request_registers()), this, SLOT(show_registers()));
connect(corescene, SIGNAL(request_program_memory()), this, SLOT(show_program()));
connect(corescene, SIGNAL(request_data_memory()), this, SLOT(show_memory()));
// Setup docks
registers->setup(machine);
program->setup(machine);
// Set status to ready
machine_status(machine::QtMipsMachine::ST_READY);
}
bool MainWindow::configured() {
return (machine != nullptr);
}
void MainWindow::new_machine() {
ndialog->show();
}
void MainWindow::machine_reload() {
machine::MachineConfig cnf(&machine->config()); // We have to make local copy as create_core will delete current machine
try {
create_core(cnf);
} catch (const machine::QtMipsExceptionInput &e) {
QMessageBox msg(this);
msg.setText(e.msg(false));
msg.setIcon(QMessageBox::Critical);
msg.setDetailedText(e.msg(true));
msg.setWindowTitle("Error while initializing new machine");
msg.exec();
}
}
#define SHOW_HANDLER(NAME) void MainWindow::show_##NAME() { \
show_dockwidget(NAME); \
} \
SHOW_HANDLER(registers)
SHOW_HANDLER(program)
SHOW_HANDLER(memory)
#undef SHOW_HANDLER
void MainWindow::set_speed() {
if (machine == nullptr)
return; // just ignore
if (ui->ips1->isChecked())
machine->set_speed(1000);
else if (ui->ips5->isChecked())
machine->set_speed(500);
else if (ui->ips10->isChecked())
machine->set_speed(100);
else
machine->set_speed(0);
}
void MainWindow::closeEvent(QCloseEvent *event __attribute__((unused))) {
settings->setValue("windowGeometry", saveGeometry());
settings->setValue("windowState", saveState());
settings->sync();
}
void MainWindow::show_dockwidget(QDockWidget *dw) {
if (dw->isHidden()) {
dw->show();
addDockWidget(Qt::RightDockWidgetArea, dw);
} else {
dw->raise();
dw->setFocus();
}
}
void MainWindow::machine_status(enum machine::QtMipsMachine::Status st) {
QString status;
switch (st) {
case machine::QtMipsMachine::ST_READY:
ui->actionPause->setEnabled(false);
ui->actionRun->setEnabled(true);
ui->actionStep->setEnabled(true);
status = "Ready";
break;
case machine::QtMipsMachine::ST_RUNNING:
ui->actionPause->setEnabled(true);
ui->actionRun->setEnabled(false);
ui->actionStep->setEnabled(false);
status = "Running";
break;
case machine::QtMipsMachine::ST_BUSY:
// Busy is not interesting (in such case we should just be running
return;
case machine::QtMipsMachine::ST_EXIT:
// machine_exit is called so we disable controls in that
status = "Exited";
break;
case machine::QtMipsMachine::ST_TRAPPED:
// machine_trap is called so we disable controls in that
status = "Trapped";
break;
default:
status = "Unknown";
break;
}
ui->statusBar->showMessage(status);
}
void MainWindow::machine_exit() {
ui->actionPause->setEnabled(false);
ui->actionRun->setEnabled(false);
ui->actionStep->setEnabled(false);
}
void MainWindow::machine_trap(machine::QtMipsException &e) {
machine_exit();
QMessageBox msg(this);
msg.setText(e.msg(false));
msg.setIcon(QMessageBox::Critical);
msg.setDetailedText(e.msg(true));
msg.setWindowTitle("Machine trapped");
msg.exec();
}
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