Jinx wrote:
> But this adds W to PCL and returns immediately to 00xx, not
> to 01E8
>
> 01E2         movwf   devno
>                   call    bitnum
> 01E8         movwf   temp
> 01EA         bra    cp_num
>
> 0204  bitnum
>                   addwf   pcl
>                   retlw    0x01
>                   retlw    0x02
>                   etc
>
> ===============================
>
> The problem is obviously (?) something to do with the high part
> of PCL,

I think you've got it.  There is nothing wrong with RETLW.  It's never
getting to that instruction.  The problem is that PCLATH and PCLATU are
not set properly and the ADDWF PCL therefore jumps to an unexpected
location instead of into the table as you intended.

As has been said many times before, ADDWF PCL type lookup tables are a bad
idea unless you really really need the code space or cycles.


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