Trying to implement methods from AN556 I found few interesting things:
1. Code in example5 - should take care of both table location and page
boundary crossing. For controllers with over 2K of memory (I am working
with 16C63) it's nesessary to set PCLATH[3] if table is located on
page1. Code takes care of this. But, what they don't mention (as well as
16Cxx datasheet)is that you have to clear PCLATH[3] when return from
table read to page 0.
2. It looks like instruction addwf PCL in table read gives correct
location in table for the given offset. But instruction movwf PCL (as in
example 5) reads data for (offset - 1). And if offset=0, it will loop on
instruction movwf PCL forever.
Am I missing something ?

gennadyp@javs.com