Subversion Repositories priority_encoder

`timescale 1us / 100 ps

module testbench();

parameter WIDTH=128;

reg [(WIDTH-1):0] in_vect;

wire [(WIDTH-1):0] in_data;

assign in_data = in_vect;

wire [6:0] out_data;

wire [(WIDTH-1):0] in_data_wbs; //with bit scan

bitscan #(.WIDTH(128)) bs0(.in(in_data), .out(in_data_wbs));

prio_encoder #(.LINES(128)) pe0(.in(in_data), .out(out_data));

integer i;

initial

begin

    $dumpfile("bench.vcd");

    $dumpvars(0,testbench);

    $display("starting testbench!!!!");

        in_vect <= 128'd0;

                #10;

        in_vect <= 128'd1;

        i <= 1;

        repeat (WIDTH) begin

                #10;

                in_vect <= in_vect << 1;

                i <= i + 1;

                //$display("i=", i, i % 4);

        end

    $display("finished OK!");

end

endmodule