Excuse me for the dubble posting. Se below for my humble attempt at your
problem.

Stig

> Hi there ...
>
> I have to implement several lookup tables of 256 values.
>
> I split the tables in parts of 128 values bit have a page select problem
> ... program crashes ...
>
> does anyone has an example program or can explain me more in detail how
> i can do this ?
>
> here is a part of my soft:
>
> LUT.ASM
> ************************************************************************
> *********************
>         org     0xC00
>
> LUT1
>         addwf   PCL,f
>
>         retlw   0x000
>
>         ...     128 values
>
>
>         org     0xD00
>
> LUT2
>         addwf   PCL,f
>
>         retlw   0x008
>
>         ...     128 values
>
>
>         org     0xE00
>
> LUT3
>         addwf   PCL,f
>
>         retlw   0x010
>
>         ...     128 values
>
>
> I now access the table by doing:
>
> ;       bsf     STATUS,RP0

Why do you set RP0? PCLATH is in both bank0 and bank1.


> ;       movlw   0x00D
> ;       movwf   PCLATH
> ;
> ;       bcf     STATUS,RP0
> ;       movfw   GOVALUE

I think you want to use movf here.


> ;
> ;       bsf     STATUS,RP0
> ;       call    LUT2
> ;       movlw   0x000
> ;       movwf   PCLATH

Are you sure that 0x000 is the actual location of adress of pclath? Remember
that your table takes up the first 256 spaces or so... Try this instead:

        movf    high    $
        movwf   PCLATH



> ;
> ;       bcf     STATUS,RP0
> ;       movwf   RETURNVALUE
>
>
> Thanks in advance !
>
> And happy PICing
>
> Bart
>