1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
#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 GraphicsView(this);
this->setCentralWidget(coreview);
// Create/prepare other widgets
ndialog = new NewDialog(this, settings);
registers = new RegistersDock(this);
registers->hide();
program = new ProgramDock(this, settings);
program->hide();
memory = new MemoryDock(this, settings);
memory->hide();
cache_program = new CacheDock(this, "Program");
cache_program->hide();
cache_data = new CacheDock(this, "Data");
cache_data->hide();
// Execution speed actions
speed_group = new QActionGroup(this);
speed_group->addAction(ui->ips1);
speed_group->addAction(ui->ips2);
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->actionProgram_Cache, SIGNAL(triggered(bool)), this, SLOT(show_cache_program()));
connect(ui->actionData_Cache, SIGNAL(triggered(bool)), this, SLOT(show_cache_data()));
connect(ui->ips1, SIGNAL(toggled(bool)), this, SLOT(set_speed()));
connect(ui->ips2, 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() {
if (corescene != nullptr)
delete corescene;
if (coreview != nullptr)
delete coreview;
delete ndialog;
delete registers;
delete program;
delete memory;
delete cache_program;
delete cache_data;
delete ui;
if (machine != nullptr)
delete machine;
settings->sync();
delete settings;
}
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(machine);
} else {
corescene = new CoreViewSceneSimple(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()));
connect(corescene, SIGNAL(request_jump_to_program_counter(std::uint32_t)), program, SLOT(jump_to_pc(std::uint32_t)));
connect(corescene, SIGNAL(request_cache_program()), this, SLOT(show_cache_program()));
connect(corescene, SIGNAL(request_cache_data()), this, SLOT(show_cache_data()));
// Setup docks
registers->setup(machine);
program->setup(machine);
memory->setup(machine);
cache_program->setup(machine->cache_program());
cache_data->setup(machine->cache_data());
// 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)
SHOW_HANDLER(cache_program)
SHOW_HANDLER(cache_data)
#undef SHOW_HANDLER
void MainWindow::set_speed() {
if (machine == nullptr)
return; // just ignore
if (ui->ips1->isChecked())
machine->set_speed(1000);
else if (ui->ips2->isChecked())
machine->set_speed(500);
else if (ui->ips5->isChecked())
machine->set_speed(200);
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();
}
|
