anchor.diff:  
   	 if (statusRing.notFull() && echoEngine.response.notEmpty())
   	    seq
  -	       $display("responseArbiter echoEngine completion");
  -	       $display("status write handle=%d address=%h burst=%h tag=%h",
  +	       //$display("responseArbiter echoEngine completion");
  +	       //$display("status write handle=%d address=%h burst=%h tag=%h",
   		  statusRing.memhandle, statusRing.bufferfirst, 8, statusTag);
   	       status_write_chan.writeReq.put(
   		  DmaRequest{handle: statusRing.memhandle, 
  
positive.code: 	       seq
  	       if (cmdRing.bufferfirst != cmdRing.bufferlast) 
  		  seq
  		     $display ("cmdFetch handle=%h address=%h burst=%h tag=%h", cmdRing.memhandle, cmdRing.bufferlast, 8, cmdFetchTag);
  		     cmd_read_chan.readReq.put(
  			DmaRequest{handle: cmdRing.memhandle,
  			   address: cmdRing.bufferlast, burstLen: 8, tag: cmdFetchTag});
  
negative.code:       while(True) seq
  	 if (statusRing.notFull() && copyEngine.response.notEmpty())
  	    seq
  	       //$display("responseArbiter copyEngine completion");
  	       //$display("status write handle=%d address=%h burst=%h tag=%h",
  		  statusRing.memhandle, statusRing.bufferfirst, 8, statusTag);
  	       status_write_chan.writeReq.put(
  		  DmaRequest{handle: statusRing.memhandle, 
  