* src/pic/gen.c (popGetExternal): simplified, mark symbol as used,
(call_libraryfunc): retrieve/create symbol and mark as used,
(genFunction): mark defined functions as non-extern and add again
to code memmap for later output
* src/pic/glue.c (emitPseudoStack): put into own subroutine,
(pic14printLocals): reworked for new symbol emission,
(emitIfNew,pic14_constructAbsMap,emitIvalLabel,emitIvals,emitInitVal,
showAllMemmaps): reworked symbol output using dbufs, added handling
of string literals (still incomplete),
(picglue): removed symbol emission, moved into showAllMemmaps,
(emitSymbolSet): new workhorse for symbol output,
(pic14emitMaps,pic14printPublics,pic14printExterns): commented out,
git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4607
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