Subversion Repositories ft816float

module DDBCDToBin_tb();

reg rst;
reg clk;
reg [15:0] adr;
reg [171:0] bcd;
reg [7:0] count;

wire [127:0] bin;

integer outfile;

initial begin
        rst = 1'b0;
        clk = 1'b0;
        adr = 0;
        bcd = $urandom(1);
        #20 rst = 1;
        #50 rst = 0;
        #10000000  $fclose(outfile);
        #10 $finish;
end

always #5
        clk = ~clk;

genvar g;
generate begin : gRand
        for (g = 0; g < 172; g = g + 4) begin
                always @(posedge clk) begin
                        if (count==2)
                                bcd[g+3:g] <= $urandom() % 10;
                end
        end
end
endgenerate

always @(posedge clk)
if (rst) begin
        adr <= 0;
        count <= 0;
end
else
begin
  if (adr==0) begin
    outfile = $fopen("d:/cores2022/rf6809/rtl/dfpu/test_bench/DDBinToBCD_tvo.txt", "wb");
    $fwrite(outfile, " ------ bin ------  ------ bcd ------  \n");
  end
        count <= count + 1;
        if (count > 140)
                count <= 1'd1;
        if (adr==2) begin
                bcd <= 172'h010;
        end
        if (adr==3) begin
                bcd <= 172'h0100;
        end
        if (adr==4) begin
                bcd <= 172'h12345678;
        end
        if (count==140) begin
        $fwrite(outfile, "%h\t%h\n", bin, bcd);
                adr <= adr + 1;
        end
end

//fpMulnr #(64) u1 (clk, 1'b1, a, b, o, rm);//, sign_exe, inf, overflow, underflow);
DDBCDToBin #(128) u6 (
        .rst(rst),
  .clk(clk),
  .ld(count==3),
  .bcd(bcd),
  .bin(bin)
);

endmodule