debug		debug stuff
forth		the forth system
list		the list implementation
mem		memory allocation stuf
packet		the packet memory manager
type		the type handling and conversion system
symbol		symbol implementation, with namespaces for forth, types, classes, ...


code generation for image processing
------------------------------------

image processing code is organized as:
imageproc.c		main image processing code (image iterators and operation dispatch)
imageproc.h		main header declaring the operations struct
<PLATFORM>_op.h		platform dependent inline functions
<PLATFORM>_iter.h	platform dependent plane iterators

the platform dependent .h files are assembled to c code in the following way:

using bin/gen_opdb.pl
imageproc.h -> operations.db

using bin/gen_opfile.pl
operations.db, <PLATFORM>_[op|iter].h -> imageproc_<PLATFORM>.c

using bin/gen_wordsimage.pl
operations.db, imageproc.h -> words_image.c