rom.sv

// Control Memory (Read-only)
// CSE140L
module rom(
  input [4:0] addr, 		// pointer
  output logic [22:0] data);		// data out
    
  logic  [22:0] mem[17:0];	// memory core
    
    initial begin
// Microcode ROM preloaded with Roberston's multiplication algorithm
            mem[00] = 23'b00000001000000000000011;
            mem[01] = 23'b00000010000000000001100;
            mem[02] = 23'b00000011000001100000000;
            mem[03] = 23'b00101100000000000000000;
            mem[04] = 23'b01000110000000000000000;
            mem[05] = 23'b00000110000010100100000;
            mem[06] = 23'b01101001000000000000000;
            mem[07] = 23'b00001000001000000000000;
            mem[08] = 23'b10001010000000000000000;
            mem[09] = 23'b00001010001100000000000;
            mem[10] = 23'b00001011010001101010000;
            mem[11] = 23'b10000011000000000000000;
            mem[12] = 23'b01001110000000000000000;
            mem[13] = 23'b00001110000000100100000;
            mem[14] = 23'b00001111001000000000000;
            mem[15] = 23'b00010000000001101010000;
            mem[16] = 23'b00010001100000010001000;
            mem[17] = 23'b10010001000000000000000;
        end

// fill in the guts
//   out = mem(addr)
always_comb begin
    data = mem[addr];
end
endmodule