private void AddSymbol(ulong ip)
        {
            SimSymbol symbol = SimCPU.FindSymbol(ip);

            if (symbol != null)
            {
                treeView1.Nodes.Add(new CallStackEntry(symbol, ip, true));
            }
            else
            {
                treeView1.Nodes.Add(new CallStackEntry(ip, true));
            }
        }
 public CallStackEntry(SimSymbol simSymbol, ulong address, bool display32)
     : this(simSymbol.Name, address, display32)
 {
     SimSymbol = simSymbol;
 }