On Wed, 19 Jun 2002 10:57:23 -0700, Brendan Moran wrote:

>Hang on, here, I'm not going over a page boundary, just over a 256 word
>boundary
>
> The 16F87x datasheet has this entry for GOTO
>
>Syntax: [ label ] GOTO k
>Operands: 0 =3D< k =3D< 2047
>Operation: k -> PC<10:0>
>PCLATH<4:3> -> PC<12:11>
>Status Affected: None
>Description: GOTO is an unconditional branch.
>The eleven-bit immediate value is
>loaded into PC bits <10:0>. The
>upper bits of PC are loaded from
>PCLATH<4:3>. GOTO is a twocycle
>instruction.
>
>
>I'm having a problem with bit 8 of the PC or, PCLATH <0>.  According to =
that
>entry, PCLATH <2:0> adjust themselves when a goto or call is used.
>

No, it says that PCLATH <2:0> aren't used in the GOTO or CALL
instruction and that only the page bits <4:3> are.=20

You're reading something into the description that just isn't there.
It doesn't say anything about bits PCLATH <2:0> adjusting themselves.


Regards, Bob

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body