On Wed, Jul 29, 2009 at 1:26 PM, M.L.<m@lkeng.net> wrote:
> On Wed, Jul 29, 2009 at 12:56 PM, Steve Smith<xygax@blueyonder.co.uk> wrote:
>> best I can do is 5... Anybody got any better ideas I am trying to get a one
>> chip solution in the smallest possible space and it needs a comparator
>>
>
> movlw output_bit
> xorwf gpio,f
> btfss gpio,input_pin
> goto $-2
>
> --
> Martin K.
>

Will probably make a read/modify/write problem I believe.
possibly add a nop between xorwf and btfss. Will still be fewer
cycles. Remember that a goto is 2 cycles not 1.

Other variations are possible. The better solution is to use a PIC
with interrupts and a timer, or more than one PIC.

--
Martin K.
-- 
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