> Using MPLAB with the simulator, I find that if I am WATCHing PORTA,
> when a command of "bsf  PORTA,RA0" is executed it does not cause PORTA
> to change in the watch window.  It would be nice if it did, but I
> figured that watching LATA would let me see the latched bits, so no
> problem.
>
> However....the following code, running with the simulator, will set the
> watched LATA to a value of 4.  I think it should be a value of 7.  (I
> feel absolutely certain that someone will gleefully shout RFTM! on
> this, but I have read the Fine Manual and don't see it.)  This is with
> an 18F452, if that makes any difference.
>
>       .
>       .
>       clrf  PORTA
>       bsf  PORTA,RA0
>       bsf  PORTA,RA1
>       bsf  PORTA,RA2
>       .
>       .

I'm guessing you have RA0 and RA1 set as inputs.  Are the two low bits of
TRISA set?


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