>Rotating both bytes together like that is a common technique, and I've seen >it used frequently, but it's almost always better to use a routine to shift >out eight bits at a time I won't presume to argue with you (my degree is in biology and I'm sure you know more about what you're talking about than I do), but I would like to know why you make this argument. What difference does it make? -Matt "DOS Computers manufactured by companies such as IBM, Compaq, Tandy, and millions of others are by far the most popular, with about 70 million machines in use wordwide. Macintosh fans, on the other hand, may note that cockroaches are far more numerous than humans, and that numbers alone do not denote a higher life form."