ESY1A_B_Seminararbeiten/4-bit-counter-myhdl/counter_4bit.v

// File: counter_4bit.v
// Generated by MyHDL 0.11
// Date: Mon Jun  7 19:39:23 2021


`timescale 1ns/10ps

module counter_4bit (
    clk,
    rst,
    data,
    updown,
    load,
    data_out
);


input clk;
input rst;
input [3:0] data;
input updown;
input load;
output [3:0] data_out;
reg [3:0] data_out;




always @(posedge clk) begin: COUNTER_4BIT_CYCLE
    if (rst) begin
        data_out <= 0;
    end
    else if (load) begin
        data_out <= data;
    end
    else begin
        if (updown) begin
            data_out <= (data_out + 1);
        end
        else begin
            data_out <= (data_out - 1);
        end
    end
end

endmodule