refactor: simplify project structure

hw/spinal/projectname/MyTopLevelSim.scala

@@ -0,0 +1,31 @@
+package projectname
+
+import spinal.core._
+import spinal.core.sim._
+
+object MyTopLevelSim extends App {
+  Config.sim.compile(MyTopLevel()).doSim { dut =>
+    // Fork a process to generate the reset and the clock on the dut
+    dut.clockDomain.forkStimulus(period = 10)
+
+    var modelState = 0
+    for (idx <- 0 to 99) {
+      // Drive the dut inputs with random values
+      dut.io.cond0.randomize()
+      dut.io.cond1.randomize()
+
+      // Wait a rising edge on the clock
+      dut.clockDomain.waitRisingEdge()
+
+      // Check that the dut values match with the reference model ones
+      val modelFlag = modelState == 0 || dut.io.cond1.toBoolean
+      assert(dut.io.state.toInt == modelState)
+      assert(dut.io.flag.toBoolean == modelFlag)
+
+      // Update the reference model value
+      if (dut.io.cond0.toBoolean) {
+        modelState = (modelState + 1) & 0xff
+      }
+    }
+  }
+}