Ensure the speed is reset every time the mode might change.

So we avoid that the next adaptive clock is way off.

Signed-off-by: Andrea Odetti <mariofutire@gmail.com>

source/frontends/sdl/sdlframe.cpp

@@ -565,7 +565,6 @@ namespace sa2
       case MODE_RUNNING:
         DebugExitDebugger();
         SoundCore_SetFade(FADE_IN);
-        mySpeed.reset();
         break;
       case MODE_DEBUG:
         DebugBegin();
@@ -577,6 +576,7 @@ namespace sa2
         break;
       }
       FrameRefreshStatus(DRAW_TITLE);
+      mySpeed.reset();
     }
   }