Serial EEPROM

Hi

I've searched the forum for hours but can't find an answer to my question.

I'm working with a 18F97J60 and a 24FC256 serial eeprom using PBP and MPASM.The eeprom holds a database of 64 bytes per record and up to 12 fields per record. The fields can be string arrays, bytes, word or longs. Of course I always know where the fields are in the record. I am using assy lang I2C read/write routines and everything works fine.

When I want to update the 12 fields I must read each one into a properly sized variable, update the variables, then write them back. This is 12 reads and 12 writes each record update. It is slow and generates a lot of code.

What I would like to do is make a single read into aTmp[64]. Let's say that I have a long variable named lVar and its value is stored in bytes aTmp[23]...[26]. I can find out where aTmp is located with the GetAddress macro. Here's the kicker: I would like lVar mapped to the aTmp memory location + 23. Then I can just do something like lVar=lVar+1 and save aTmp. 1 read, 1 write and no unpacking/repacking.

This seems like a lot to wish for but it would sure be nice to clean up this code. Thanks in advance for any ideas.