init

code/v11_simple_coverage.sv

@@ -0,0 +1,56 @@
+module simple_coverage();
+
+   logic [7:0] data;
+   logic [7:0] addr;
+   logic       par;
+   logic       rw;
+   logic       en;
+
+   // covergroup
+   covergroup memory @ (posedge en);
+      option.per_instance = 1;
+      address : coverpoint addr {
+         bins low  = {0,50};
+         bins med  = {51,150};
+         bins high = {151,255};
+      }
+      parity : coverpoint par {
+         bins even = {0};
+         bins odd  = {1};
+      }
+      read_write : coverpoint rw {
+         bins read = {0};
+         bins write = {1};
+      }
+   endgroup
+
+   // instance of covergroup
+   memory mem = new();
+
+   // drive stimulus
+   task drive (input [7:0] a, input [7:0] d, input r);
+      #5;
+      en   <= 1;
+      addr <= a;
+      rw   <= r;
+      data <= d;
+      par  <= ^d;
+      #5;
+      en   <= 0;
+      rw   <= 0;
+      data <= 0;
+      par  <= 0;
+      addr <= 0;
+      rw   <= 0;
+   endtask
+
+   // stimulus generation
+   initial begin
+      en = 0;
+      repeat (10) begin
+         drive ($random, $random, $random);
+      end
+      #10 $finish;
+   end
+
+endmodule : simple_coverage