Time to move this issue to some C/C++ mail-list, perhaps ?

>Any idea why my modification of the C++ code didn't work?

Hopefully not.
Just mayhaps to [EE]:
IMHO, of course.

This  is (possibly :-) ) a general discussion about mapping using tables or
otherwise to transform an N>8 bit address value sparsely populated data
range into an 8 bit address space. As such it is microprocessor relevant
even if not especially PIC. Any implementation difficulties, whether in
assembler or eg C, but especially in a HLL art liable to reflect a
misunderstanding of what is being done and so are liable to be instructive.
(difficulties in assembler are more liable  to be difficulties with the
language ;-) ).


        Russell McMahon

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