--- /dev/null
+package edu.berkeley.slipway;
+
+import edu.berkeley.obits.*;
+import org.ibex.util.Log;
+import java.io.*;
+import java.util.*;
+import gnu.io.*;
+
+public abstract class Board {
+
+ public abstract void reset();
+ public abstract void boot(Reader r) throws Exception;
+ public abstract InputStream getInputStream();
+ public abstract OutputStream getOutputStream();
+
+}