public static EXECUTION_RESULT?DUP(ref ExecutionStack stack)
{
if (!stack.Any())
{
return(EXECUTION_RESULT.INVALID_STACK);
}
var item = stack.Pop();
stack.Push(item, item);
return(null);
}
public static EXECUTION_RESULT?VERIFY(ref ExecutionStack stack)
{
if (!stack.Any())
{
return(EXECUTION_RESULT.INVALID_STACK);
}
else if (!stack.PopBool())
{
return(EXECUTION_RESULT.FAILURE);
}
else
{
return(null);
}
}