On Fri, Jan 30, 2009 at 2:48 AM, Stefano Vanzo <pics@vanzo.it> wrote:
> I have two 16bits because DATA_PORT is 16 bit. I want to know if
> data8bit ends up in the lowwer part of DATA_PORT and does not effect the
> two high nibbles.
>
> DATA_PORT |= data8bit & 0x00f0;
>
> --
> Regards
>
> Stephen

Yes, it will end up in the lower part of DATA_PORT. But remember that
if you & anything with 00 (the upper part), the result is always 0.


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