I have an existing small PIC project that produces an output on one pin
based on the high bit of a register. In order to save an external
inverter, I'd like to also output the complement on another pin. For the
sake of argument let's say it is an oscillator that blinks an LED or
drives a transducer.

The target is a 16F627A and any pins are fair game, but glitches are not
OK to the two pins, so no math or rotates directly on the ports.

It is OK to do anything to any of the other pins.

It is OK for there to be a little latency, and either port A or port B
is OK. Or even both ports, though I don't see how that could get any
faster.

Here's the fastest thing I could come up with:

 movlw 0x55
 btfss bigreg,7
 movlw 0xAA
 movwf PORTA

This is almost fast enough, if I could shave an instruction off one of
the two conditions it would be enough for me.

Any suggestions?

Thanks, Bob

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