save state handling for entering and leaving the debugger modified.

src/common/RewindManager.cxx

@@ -29,6 +29,7 @@ RewindManager::RewindManager(OSystem& system, StateManager& statemgr)
   : myOSystem(system),
     myStateManager(statemgr),
     myIsNTSC(true) // TODO
+    // TODO: current is not valid
 {
 }
 
@@ -42,6 +43,7 @@ bool RewindManager::addState(const string& message)
     compressStates();
 
   RewindState& state = myStateList.addFirst();
+  // TODO: addFirst() must set current() to the just added element
   Serializer& s = state.data;
 
   s.reset();  // rewind Serializer internal buffers
@@ -60,7 +62,9 @@ bool RewindManager::rewindState()
   if(!myStateList.empty())
   {
     // TODO: get state previous to the current state instead of first()
-    RewindState& state = myStateList.first();
+    // RewindState& state = myStateList.current();
+    // myStateList.prev(); // moves current to the previous (older) element
+    RewindState& state = myStateList.first(); // TOOD: remove
     Serializer& s = state.data;
     string message = getMessage(state);
 
@@ -71,8 +75,8 @@ bool RewindManager::rewindState()
     // Show message indicating the rewind state
     myOSystem.frameBuffer().showMessage(message);
 
-    // TODO: Do NOT remove state (TODO later somewhere else: stop emulation)
-    myStateList.removeFirst();
+    // TODO: Do NOT remove state (TODO later somewhere else: stop emulation)    
+    myStateList.removeFirst(); // TODO: delete this
 
     return true;
   }

src/common/RewindManager.hxx

@@ -49,7 +49,7 @@ class RewindManager
     */
     bool rewindState();
 
-    /** 
+    /**
       Unwind one level of the state list, and display the message associated
       with that state.
     */

src/debugger/Debugger.cxx

@@ -528,10 +528,7 @@ void Debugger::setStartState()
   // Lock the bus each time the debugger is entered, so we don't disturb anything
   lockBankswitchState();
 
-  // If rewinding is not enabled, always start the debugger with a clean list
   RewindManager& r = myOSystem.state().rewindManager();
-  if(myOSystem.state().mode() == StateManager::Mode::Off)
-    r.clear();
   myDialog->rewindButton().setEnabled(!r.atLast());
   myDialog->unwindButton().setEnabled(!r.atFirst());
 
@@ -548,6 +545,9 @@ void Debugger::setQuitState()
   // Bus must be unlocked for normal operation when leaving debugger mode
   unlockBankswitchState();
 
+  // Save state when leaving the debugger
+  saveOldState("exit debugger");
+
   // execute one instruction on quit. If we're
   // sitting at a breakpoint/trap, this will get us past it.
   // Somehow this feels like a hack to me, but I don't know why