1 files changed, 51 insertions, 0 deletions
diff --git a/src/intersim/arbiter.hpp b/src/intersim/arbiter.hpp
new file mode 100644
index 0000000..23b5232
--- /dev/null
+++ b/src/intersim/arbiter.hpp
@@ -0,0 +1,51 @@
+#ifndef _ARBITER_HPP_
+#define _ARBITER_HPP_
+
+#include <list>
+
+#include "module.hpp"
+#include "config_utils.hpp"
+
+class Arbiter : public Module {
+protected:
+   const int _inputs;
+
+   struct sRequest {
+      int in;
+      int label;
+      int pri;
+   };
+
+   list<sRequest> _requests;
+
+   int _match;
+
+public:
+   Arbiter( const Configuration &,
+            Module *parent, const string& name,
+            int inputs );
+   virtual ~Arbiter( );
+
+   void Clear( );
+
+   void AddRequest( int in, int label = 0, int pri = 0 );
+   void RemoveRequest( int in, int label = 0 );
+
+   virtual void Arbitrate( ) = 0;
+
+   int Match( ) const;
+};
+
+class PriorityArbiter : public Arbiter {
+   int _rr_ptr;
+
+public:
+   PriorityArbiter( const Configuration &config,
+                    Module *parent, const string& name,
+                    int inputs );
+   ~PriorityArbiter( );
+
+   void Arbitrate( );
+};
+
+#endif