Clyde Smith-Stubbs <PICLIST@MITVMA.MIT.EDU> wrote:

> "Andrew Warren" <fastfwd@ix.netcom.com> wrote:
>
> > Nope.  The high byte of the PC isn't DIRECTLY readable; PCLATH, a
> > readable/writable register that shadows the high byte of the PC,
> > exists for precisely this reason.
>
> Ummm.. bad choice of words there, Andy. It could confuse some
> people
>
> ....
>
> The important thing to remember is that PCLATH is *never* updated
> when the PC changes for any reason - the term "shadow" can be taken
> to imply that it provides a way to find the value of the high byte
> of the PC, which it doesn't, only to set it.

    Thanks for clarifying my statement, Clyde... You're right;
    reading over it now, I see that the word "shadow" was completely
    wrong.

    -Andy

Andrew Warren - fastfwd@ix.netcom.com
Fast Forward Engineering, Vista, California
http://www.geocities.com/SiliconValley/2499