Hi Steve,

I do not know a register but a bit variable works.


Here is an example.

Code:
TRISA = 0
TRISB = 0

Test  var bit
Relay var PORTB.0
Test  = 0
relay = 0

start:

        toggle relay    'This is an I/O.
        toggle test     'This is a variable.
        pause 1000

goto start


end

Did you mean something else?