public override void Execute(EnumJavaOpCode opCode, object operand)
{
JavaInstruction instruction = _javaInstructionTable.GetInstruction(opCode);
instruction.SetOperands(operand);
System.Diagnostics.Debug.WriteLine(instruction.ToString());
}
public JavaInstruction(char opcode, string mnemonic, string description, object operand)
{
_op_code = (EnumJavaOpCode)opcode;
_mnemonic = mnemonic;
_description = description;
_operand = operand;
}
public JavaInstruction GetInstruction(EnumJavaOpCode opCode)
{
JavaInstruction result = null;
_table.TryGetValue((int)opCode, out result);
result = result.Clone();
if (result == null)
{
throw new NullReferenceException("No instruction exists");
}
return(result);
}
//private static volatile AbstractInterpreter _executor = null;
//private static readonly object _obj = new Object();
#endregion
#region public method
/////<summary>
///// Use the singleton pattern to create a unique object in the runtime
/////<summary>
//public static AbstractInterpreter GetInstance()
//{
// if(_executor == null)
// {
// lock(_obj)
// {
// if(_executor == null)
// {
// _executor = GetExecutor();
// }
// }
// }
// return _executor;
//}
#endregion
#region public abstract methods
/// <summary>
/// 执行Java指令
/// </summary>
/// <param name="instruction"></param>
public abstract void Execute(EnumJavaOpCode opcode, object operand);
