Couplement Forth is a small and experimental STC (Subroutine-Threaded Code) Forth system under development for ZX Spectrum, with a BASIC file interface easy to adapt to any DOS.
Home page and repository:
Home page: http://programandala.net/en.program.couplement_forth.html
Fossil repository: http://fossil.programandala.net/couplement_forth
GitHub mirror: http://github.com/programandala-net/couplement-forth
Couplement Forth was forked on 2014-12-30 from ForthCoupe, an abandoned project based on John A. Avis' SamForth .
“Couplement” resembles first to the SAM Coupé origin of this Forth system, and the combination of the original source with the ZX Spectrum operating system; and second, it resembles to the file interface combination with BASIC.
Besides, I found the following quote in the “couplement” entry of The Collaborative International Dictionary of English v.0.48 [gcide], which was definitive for choosing the name:
And forth together rode, a goodly couplement.
Couplement Forth is usable, but many common words and are still missing, and there’s no disk support yet: the only input is the keyboard.
A Git repository was created on 2016-03-12 from the development backups, in order to make future development easier and preserve the evolution of the code. On 2020-12-06 the Git repository was converted to a Fossil repository, keeping GitHub as a mirror.
Most ideas noted for Couplement Forth have already been implemented in Solo Forth, a DTC (Direct-Threaded Code) Forth system under active development for ZX Spectrum 128 with G+DOS, +3DOS or TR-DOS, with a huge library.
Couplement Forth will evolve slowly, as a test system to try and benchmark a subroutine-threaded Forth in the Z80 processor.
A Makefile is provided. The only requirement is the
Pasmo assembler. Do make and a TAP file
will be created in the <bin> directory.