Remove debug symbol save call from load symbols function so that live file edits are not overwriten. Added a save debug symbols debugger menu action so that this can be explicitly performed. Fixes issue #642.

src/debugsymboltable.cpp

@@ -756,7 +756,6 @@ int debugSymbolTable_t::loadGameSymbols(void)
 {
 	int nPages, pageSize, romSize = 0x10000;
 
-	this->save();
 	this->clear();
 
 	if ( GameInfo != nullptr )

src/drivers/Qt/ConsoleDebugger.cpp

@@ -879,6 +879,16 @@ QMenuBar *ConsoleDebugger::buildMenuBar(void)
 
 	symMenu->addAction(act);
 
+	// Symbols -> Save
+	act = new QAction(tr("&Save"), this);
+	//act->setShortcut(QKeySequence( tr("F7") ) );
+	act->setStatusTip(tr("&Save"));
+	//act->setCheckable(true);
+	//act->setChecked( break_on_unlogged_data );
+	connect( act, SIGNAL(triggered(void)), this, SLOT(saveSymbolsCB(void)) );
+
+	symMenu->addAction(act);
+
 	symMenu->addSeparator();
 
 	// Symbols -> Symbolic Debug
@@ -2935,6 +2945,13 @@ void ConsoleDebugger::reloadSymbolsCB(void)
 	FCEU_WRAPPER_UNLOCK();
 }
 //----------------------------------------------------------------------------
+void ConsoleDebugger::saveSymbolsCB(void)
+{
+	FCEU_WRAPPER_LOCK();
+	debugSymbolTable.save();
+	FCEU_WRAPPER_UNLOCK();
+}
+//----------------------------------------------------------------------------
 void ConsoleDebugger::pcSetPlaceTop(void)
 {
 	asmView->setPC_placement( 0 );

src/drivers/Qt/ConsoleDebugger.h

@@ -632,6 +632,7 @@ class ConsoleDebugger : public QDialog
 		void resizeToMinimumSizeHint(void);
 		void resetCountersCB (void);
 		void reloadSymbolsCB(void);
+		void saveSymbolsCB(void);
 		void displayByteCodesCB(bool value);
 		void displayTraceDataCB(bool value);
 		void displayROMoffsetCB(bool value);