> IIRC on these chips, you can write to the port and it will not reset
> the IOC internal latch values (internal latch not GPIF interupt flag
> or whatever). However, BSF, BCF, ANDWF, etc are all read-modify-write
> instructions that will cause a "read" and reset the IOC latches. So
> you would have to use MOVWF to update your pins without messing up the
> IOC.

I just doublechecked the data sheet - 12F629 is the same as with the older
chips - either a read or a write to the port will reset it, so if you get
a change as you're writing to the port, you'll miss it.

Cheerful regards,

Bob

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