For switchin page i recommend the next step:
1. Put your principal routine in page 0
2. In the other pages put only rutines that you can call from page 0
3. For call one routine from a page different of page 0 do the next...

EXAMPLE FOR ROUTINE IN PAGE 2 CALL FROM PAGE 0
 bsf  STATUS,PA1
 call rutine
 bcf STATUS,PA1
.
.
.
PAGE 2
rutine
.
.
return

Regards
Francisco Armenta
"CUTTLER!" wrote:

> Ok, I am new to the PIC line and I am looking for an answer to a basic PIC que
stion...
>
> I am using the PIC16C57. (Kewwl) and the question has to do with the bank swit
ching and sub routines.
>
> Q.  I have basically put the sub routines into the first bank with a little bi
t of code and now the code is spilling over into the second bank.  Do I have to
basically copy the subroutines into the second bank or can I access the subs fro
m the second bank (Presetting the upper bits of course) and still have it return
 correctly without worrying about the upper bits?
>
> The book that I have doesn't really go into that much detail.
> Personally I think that this is the weakest feature of this micro....
>
> Carl Bright (CMC) Communications Mfg. Co.
> cpbright@ionet.net
> www.ionet.net/~cpbright
> Leave a message and I will be paged
> automatically

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