module coeff_rom (input clock, input [2:0] addr, output reg [15:0] data);

   always @(posedge clock)
     case (addr)
       3'd0 : data <= #1 -16'd49;
       3'd1 : data <= #1 16'd165;
       3'd2 : data <= #1 -16'd412;
       3'd3 : data <= #1 16'd873;
       3'd4 : data <= #1 -16'd1681;
       3'd5 : data <= #1 16'd3135;
       3'd6 : data <= #1 -16'd6282;
       3'd7 : data <= #1 16'd20628;
     endcase // case(addr)
      
endmodule // coeff_rom