module RAM #(
    parameter WIDTH = 8,
    parameter SIZE  = 128,
    parameter INIT_FILENAME = ""
) (
    input                    clock,
    input                    reset,
    input                    clock_en,
    input                    write_en,
    input [$clog2(SIZE)-1:0] addr,
    input        [WIDTH-1:0] din,
    output reg   [WIDTH-1:0] dout
);

    reg [WIDTH-1:0] ram[SIZE-1:0], dout;
    
    integer i;
    initial begin
        if(INIT_FILENAME == "")
            for(i = 0; i < SIZE; i=i+1) ram[i] = 0;
        else
            $readmemb(INIT_FILENAME, ram);
    end
    
    always @(posedge clock) begin
        if(clock_en) begin
            dout <= reset ? 0 : ram[addr];
            if(write_en)
                ram[addr] <= din;
        end
    end

endmodule