Full savestating to memory

include/audio.h

@@ -135,6 +135,13 @@ typedef struct {
 
 } audio_context;
 
+typedef struct {
+    audio_context ctx; 
+} audio_state;
+
+void audio_save_state(audio_state*);
+void audio_load_state(const audio_state*);
+
 void audio_init();
 void audio_tick();
 void audio_period_tick();