module heron_ctrl(
  state,
  ready,
  ram_wr_en,
  ram_rd_en,
  alu_mode,
  alu_set_z,
  alu_set_c,
  alu_set_s,
  k0_to_b,
  k1_to_b,
  alu_to_b,
  a_to_adr,
  a_to_i,
  a_to_old_x,
  a_to_s,
  a_to_x,
  b_to_adr,
  din_to_a,
  div_to_b_shift_1,
  i_to_a,
  old_x_to_b,
  s_to_b,
  s_to_b_shift_1,
  x_to_a,
  x_to_b_shifted);

  input [3:0] state;

  output ready;
  output ram_wr_en;
  output ram_rd_en;
  output rom_rd_en;
  output alu_mode;

  always @(state) begin
  end

endmodule