Subversion Repositories s80186

// Copyright Jamie Iles, 2017

//

// This file is part of s80x86.

//

// s80x86 is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// s80x86 is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with s80x86.  If not, see .

module Counter #(parameter count_width = 0,

                 parameter count_max = 255)

                (input logic clk,

                 input logic reset,

                 output logic [count_width - 1:0] count);

reg [count_width - 1:0] count_reg;

always @(posedge clk) begin

        if (reset)

                count_reg <= 0;

        else if (count_reg != count_max[count_width - 1:0])

                count_reg <= count_reg + 1'b1;

end

assign count = count_reg;

endmodule