anchor.diff:  endinterface
   
   interface RingBufferConfig;
  -   method Action set(Bit#(3) regist, Bit#(DmaOffsetSize) addr);
  -   method Bit#(DmaOffsetSize) get(Bit#(3) regist);
  +   method Action set(Bit#(3) regist, Bit#(64) addr);
  +   method Bit#(64) get(Bit#(3) regist);
   endinterface
   
   
  
positive.code:       else renable <= (addr[0] != 0);
     endmethod
     
     method Bit#(DmaOffsetSize) get(Bit#(3) regist);
        if (regist == 0) return (zeroExtend(rbufferbase));
        else if (regist == 1) return (zeroExtend(rbufferend));
        else if (regist == 2) return (zeroExtend(rbufferfirst));
  
negative.code:    Reg#(Bool) renable <- mkReg(False);
     
     interface RingBufferConfig configifc;
     method Action set(Bit#(3) regist, Bit#(64) addr);
        if (regist == 0) rbufferbase <= truncate(addr);
        else if (regist == 1) rbufferend <= truncate(addr);
        else if (regist == 2) rbufferfirst <= truncate(addr);
  