anchor.diff:  endinterface
   
   interface RingIndication;
  -   method Action setResult(Bit#(1) cmd, Bit#(3) regist, Bit#(32) addr);
  -   method Action getResult(Bit#(1) cmd, Bit#(3) regist, Bit#(32) addr);
  +   method Action setResult(Bit#(1) cmd, Bit#(3) regist, Bit#(64) addr);
  +   method Action getResult(Bit#(1) cmd, Bit#(3) regist, Bit#(64) addr);
      method Action completion(Bit#(32) command, Bit#(32) tag);
   endinterface
   
  
positive.code: import NopEngine::*;
  
  interface RingRequest;
     method Action set(Bit#(1) cmd, Bit#(3) regist, Bit#(32) addr);
     method Action get(Bit#(1) cmd, Bit#(3) regist);
     method Action hwenable(Bit#(1) en);
     method Action doCommandIndirect(Bit#(64) addr);
  
negative.code:       	 $display("doCommandImmediate %h", data);
        endmethod
  
        method Action set(Bit#(1) _cmd, Bit#(3) regist, Bit#(64) addr);
  	 if (_cmd == 0)
  	    cmdRing.configifc.set(regist, truncate(addr));
  	 else
  	    statusRing.configifc.set(regist, truncate(addr));
  	 indication.setResult(_cmd, regist, addr);
        endmethod
     
        method Action get(Bit#(1) _cmd, Bit#(3) regist);
  	 if (_cmd == 0)
  	    indication.getResult(0, regist, 
  	       zeroextend(cmdRing.configifc.get(regist)));
  	 else
  	    indication.getResult(0, regist, 
  	       zeroextend(statusRing.configifc.get(regist)));
        endmethod
  
        method Action hwenable(Bit#(1) en);
  