Problem with formula node

[LVCoder]

Hi,

I am using LabVIEW 2012 and there seems to be a problem with the formula node. The output of a simple not operation is not correct.

I have a U8 input whose value is 255. I apply a not operation(a = ~a;) and value returned by the formula node is also 255.

Is it a bug in the node or is there some other way to compute bitwise NOT?

Thanks,

Ritesh

[crossrulz · Accepted solution]

You need to use the Exclusive OR function.  So what you really need is:

a = a^0xFF

 EDIT:  Digging some more, it is called a "bit complement".  I would consider this a bug.  I'm seeing the same with 2011.