Hi, Still new at this PIC stuff, and trying to think of a way to implement tables in a PIC. BTW, I'm experimenting with a 16F872 if that makes a diff. What I'm thinking is that I can put in a bunch of EQU's and reference those in the code. However, if I wanted to change those values to=20 a different set of EQU's later, I'm not sure how to do this. My only thought so far was to use as much user register locations as=20 there are table entries and pre-populate them with the first table, then do the same for the second. I can have the code reference the specific locations of the first table, but not sure how to have it look = for the second table instead. The trigger to switch tables could be from an external switch or something in the code itself, that's not important. Thanks, -Neil. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics