working on audio buffer stuff

include/audio.h

@@ -117,6 +117,11 @@ typedef struct {
     float right_history[384];
     u32 right_index;
 
+    u8 sq1_sample_val;
+    u32 sq1_write_index;
+    u32 sq1_read_index;
+    u8 sq1_audio_buffer[4096];
+
 } audio_context;
 
 void audio_init();