mealy_ooo_seq.v

module mealy_ooo(clk,rst,inp,out);
    
    input clk, rst, inp;
    output out;

    reg[1:0] state;
    reg out;

    always @(posedge clk, posedge rst)

    begin
    if(rst)
        begin
            state <= 2'b00;
            out <= 0;
        end
    else
        begin
            case(state)
            2'b00:
                begin
                    if(inp)
                        begin
                            state <= 2'b00;
                            out <= 0;
                        end
                    else
                        begin
                            state <= 2'b01;
                            out <=0;
                        end
                end
            2'b01:
                begin
                    if(inp)
                        begin
                            state <= 2'b00;
                            out <= 0;
                        end
                    else
                        begin
                            state <= 2'b10;
                            out <= 0;
                        end
                end
            2'b10:
                begin
                    if(inp)
                        begin
                            state <= 2'b00;
                            out <= 0;
                        end
                    else
                        begin
                            state <= 2'b10;
                            out <= 1;
                        end
                    end
            default: 
                begin
                    state <= 2'b00;
                    out <= 	0;
                end
            endcase
        end
        end
endmodule
		


module fsm_testbench;

    reg  clk, rst, inp;
    wire out;
    wire[1:0] state;
    reg[15:0] sequence;
    integer i;

    mealy_ooo dut( clk, rst, inp, out);

    initial
    begin
    $dumpfile("vcd/Mealy000Sequence.vcd");
    $dumpvars(0,fsm_testbench);
    $monitor("State = ", state, " Input = ", inp, ", Output = ", out);
    
        clk = 0;
        rst = 1;
        sequence = 16'b0101011101111000;
        #5 rst = 0;

        for( i = 0; i <= 15; i = i + 1)
        begin
            inp = sequence[i];
            #2 clk = 1;
            #2 clk = 0;
            
        end
    
    end
endmodule