Add skeleton classes for 5 major pipeline stages

1 files changed, 8 insertions, 0 deletions

diff --git a/inc/stage.h b/inc/stage.h
index 769818c..494f3d3 100644
--- a/inc/stage.h
+++ b/inc/stage.h
@@ -1,13 +1,21 @@
 #ifndef STAGE_H
 #define STAGE_H
 #include "definitions.h"
+#include "response.h"
 #include "storage.h"
 #include <array>
 
 class Stage
 {
   public:
+	Stage(Stage *next);
 	virtual ~Stage() = default;
+	/**
+	 * Advances this stage by a single clock cycle.
+	 * @return a response, indicating whether this pipeline stage is stalled,
+	 * busy, or done.
+	 */
+	virtual Response advance() = 0;
 
   protected:
 	/**