initial commit for open source NoC IP

rtl/util/commoncell/src/Basic/dv/CountOne_tb.v

@@ -0,0 +1,59 @@
+module CountOne_tb;
+
+  // Parameters
+  localparam int unsigned InputWidth = 8;
+  localparam int unsigned CountWidth = $clog2(InputWidth + 1);
+
+  // Ports
+  reg  [InputWidth-1:0] bits_i;
+  wire [CountWidth-1:0] cnt_o;
+
+  CountOne #(
+      .InputWidth(InputWidth)
+  ) u_CountOne (
+      .bits_i(bits_i),
+      .cnt_o (cnt_o)
+  );
+
+  function automatic [CountWidth-1:0] GlodenModel;
+    input bit [InputWidth-1:0] in;
+    bit [CountWidth-1:0] sum;
+    begin
+      sum = 0;
+      for (int i = 0; i < InputWidth; i++) begin
+        sum = sum + in[i];
+      end
+      GlodenModel = sum;
+    end
+  endfunction
+
+`ifdef DUMPON
+  initial begin : GEN_WAVEFORM
+    $fsdbDumpfile("CountOne_tb.fsdb");
+    $fsdbDumpvars(0, CountOne_tb);
+    $fsdbDumpvars("+mda");
+    $fsdbDumpvars("+all");
+    $fsdbDumpon();
+  end
+`endif
+
+  initial begin : RANDOM_TEST
+    begin
+      repeat (10000) begin : GEN_CASE
+        bits_i = $urandom_range(0, InputWidth - 1);
+        #100;
+        NOT_EQUAL :
+        assert (cnt_o == GlodenModel(bits_i))
+        else begin
+          $error("Input[%b], Output[%d], Gloden[%d]\n", bits_i, cnt_o, GlodenModel(bits_i));
+          break;
+        end
+      end
+      #100;
+      $fatal("PASS\n");
+      $finish;
+    end
+  end
+
+
+endmodule