Return stack. Used as normal return stack, but also for the following other purposes:
Interception frames placed by CATCH.
Input nesting state information.
Control parameters for DO LOOPs.
R12
Pointer to AForth's variable space, including user variables, such as BASE, TIB and STATE.
R11
Data stack pointer.
R10
Reserved for future expansion.
R0-R9 are used by the kernel words and are also available for use in AFIF files or similar.
AForth Fast Include Format (AFIF) _____________________________________________
AForth release 0.70 and above features a special file format for fast loading of Forth word definitions. This format is especially well-suited for libraries and interfacing with machine code.
AFIF files also provide dynamic linking, such that an AFIF file can call routines or extract information from previously loaded AFIF files in addition to export information to subsequently loaded AFIF files.
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AFIF File Format
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Docs on AFIF ends here. Next release will elaborate!