Allow movement from a register value to a memory value

src/memoryviewerwidget.cpp

@@ -30,6 +30,8 @@ MemoryViewerWidget::MemoryViewerWidget(QWidget *parent)
           [=] { setEnabled(true); });
   connect(ProcessorHandler::get(), &ProcessorHandler::procStateChangedNonRun,
           this, [=] { this->updateView(); });
+  connect(ProcessorHandler::get(), &ProcessorHandler::memoryFocusAddressChanged,
+          this, &MemoryViewerWidget::setCentralAddress);
 }
 
 MemoryViewerWidget::~MemoryViewerWidget() { delete m_ui; }

src/processorhandler.h

@@ -185,6 +185,10 @@ class ProcessorHandler : public QObject {
   /// Returns true if the simulator is currently in "run" mode.
   static bool isRunning() { return get()->_isRunning(); }
 
+  static void setMemoryFocusAddress(AInt address) {
+    emit get()->memoryFocusAddressChanged(address);
+  }
+
   /**
    * @brief run
    * Asynchronously runs the current processor. During this, the processor will
@@ -249,6 +253,10 @@ class ProcessorHandler : public QObject {
   void procStateChangedNonRun(); // processorReset | processorReversed |
                                  // processorClockedNonRun
 
+  // Emitted whenever the global memory focus address for the application should
+  // change.
+  void memoryFocusAddressChanged(AInt address);
+
 private slots:
   /**
    * @brief syscallTrap

src/registerwidget.cpp

@@ -70,10 +70,6 @@ void RegisterWidget::showContextMenu(const QPoint &pos) {
   // If the register is not read only, add "set register value" action.
   if (m_model->flags(index) & Qt::ItemIsEditable) {
     menu.addAction("Set register value", [&]() {
-      // A dialog which says "Register value"
-      // A text field which is pre-filled with the current value of the register
-      // A button which says "Set"
-      // A button which says "Cancel"
       QInputDialog dialog(this);
       dialog.setWindowTitle("Set register value");
       dialog.setLabelText("Register value");
@@ -88,6 +84,16 @@ void RegisterWidget::showContextMenu(const QPoint &pos) {
     });
   }
 
+  auto goToAddressAction = QAction("Go to address");
+  goToAddressAction.setToolTip("Make all memory viewers move to the address "
+                               "contained in the selected register");
+  connect(&goToAddressAction, &QAction::triggered, [&]() {
+    const auto address = m_model->data(index, Qt::EditRole).toULongLong();
+    ProcessorHandler::setMemoryFocusAddress(address);
+  });
+  menu.addAction(&goToAddressAction);
+  menu.setToolTipsVisible(true);
+
   menu.exec(m_ui->registerView->viewport()->mapToGlobal(pos));
 }