anchor.diff:        
      endinterface
   
  -
   endmodule
positive.code:    function Bit#(14) get_n(Vector#(14, DiffOut) v);
        return(pack(map(foo_n, v)));
     endfunction
     
  
     
     interface FMComms1DACPins pins;
        
  
negative.code:    
     for (Integer i = 0; i < 14; i = i + 1)
        dac_out[i] <- mkxOBUFDS(dac_ddr_data[i]);
     
     rule senddown_gb;
        outfifo.deq();
  