Ok, this might seem a little A-retentive, but is there an official naming convention for inverted pin names... For an example: I am working with an ISD 2560P chip. Alot of the pin names have lines over them (To indicate that they are active low and not high). Is there a special way to note this if your naming a pin? Like if I want to say:

OVR Var PortB.0 ' Over flow pin


That works, but does not clearly show that OVR is actually supposed to be negated (active low).

what I really want to do is:

___
OVR Var PortB.0 ' Over flow pin.


However I see no way to include the overline in the variable name.