Up to parent directory^Forth Words contains a description of the ^Forth to C translation model which is accurate as far as it goes, but not entirely up to date. We're working on it.
How to do a translation is a start on documentation for running the translator and compiling a translation. The translator itself is expected to work with pfe version 0.32.9x or later, pretty much regardless of host. The compilation details, especially options for using registers, do depend on the host, and have been tested on only three systems.
^Forth translator for pfe
C source output
scripts for building single pfe modules
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Files in this directory under the GNU LGPL typically have a POLITENESS request.