Code:
~ Bitwise NOT
So it's a Bitwise NOT then (well I've never heard of that one before, I'll get straight on it)

And not:

If you don't want MicroCode Studio to interpret a control sequence, but rather send it as normal characters, then just use the tilda symbol (~) in front of the $ or # symbol. For example, letter ~#9712345 would be sent as letter #9712345.
Like I thought it was. I can be almost dangerous with my assumptions sometimes

Dave