Hi again Darrel,

I think we crossed wires somewhere. I'm not toggling a port register, I toggled one bit inside a ram register, assigned by PBP (Mode var Bit). The 0-1-0-1 was the bit variable result displayed via the LCD routine, nothing to do with a port at all other than I use a pin to make the bit value toggle once...

Does that change your response to toggling a RAM variable ?

Anyway. If you don't use Toggle to swap a ram 'bit variable' value from 0 to 1 and vice versa, how would you do it in minimal code ?
Martin