---

Sin Forth

Sin Forth is a Forth compiler, written in Gforth, to be used on GNU/Linux in order to create Z80 machine code programs for ZX Spectrum and compatible.

Main features:

• The compiler adds to the target program only the necessary words. Each word is written in its own library file.
• The object code is subroutine threaded (STC). This makes it possible to combine Forth code and Z80 assembly without limitations.
• Therefore, the compiled words are assembly routines, and they compile calls to their address.
• The data stack is pointed by the IX Z80 register.
• The compiler builds a TAP file ready to be loaded into a ZX Spectrum emulator. Maybe future versions will build also disk images for several disk operating systems.
• The compiler will include part of the Galope library and part of the Solo Forth library.

The project is developed in a Mercurial repository, with a mirror in GitHub.

Related pages

Abersoft Forth Disassembled

Disassembled and commented code of ZX Spectrum's Abersoft Forth, with the tools that were written to obtain it.

Afera

Library for Abersoft Forth.

Couplement Forth

A subroutine-threaded Forth for ZX Spectrum.

DZX-Forth

A Forth for ZX Spectrum +3e.

Solo Forth

A disk-based Forth system for ZX Spectrum 128, for cross-development of ZX Spectrum programs.