* clean up code

* working-ish run/pause/reset
* proper closing/cleanup
* ability to run BIOS alone

src/NDS.cpp

@@ -328,6 +328,14 @@ void LoadROM(const char* path, bool direct)
 
     if (NDSCart::LoadROM(path, direct))
         Running = true;
+    else
+        printf("Failed to load ROM %s\n", path);
+}
+
+void LoadBIOS()
+{
+    Reset();
+    Running = true;
 }