package typedef_pkg;
  typedef enum logic [1:0] {
    ADD  = 2'b00,
    MULT = 2'b01,
    OR   = 2'b10,
    AND  = 2'b11
  } operation_t;

  typedef logic [7:0] operand_t;
  typedef logic [15:0] result_t;
endpackage : typedef_pkg