Open Source Forth Software

colorForth is, in Chuck Moore's own words: "A dialect of Forth that uses color to replace punctuation. Includes its own operating system. Produces extremely compact programs. Instant compile from pre-parsed source."

Win32Forth is ANS compatible, Forth language application development system with many tools; Interactive console, integrated extensible debugger, a GUI file editor, hypertext rendering, hyperlinked source files. VIEW <word-name> to explore the many files

Mops is a full-featured, object-oriented stand-alone programming language for Mac OS X. Its interactive development environment provides for fluid and productive programming by allowing quick testing and modification of small code segments.

Forpost is an embeddable, interpreted stack-based(Forth-like) language which has simple, compact and effective implementation in ANSI C. Main features: heterogeneous arrays, higher-order functions, program/data equivalence.

Evolved from Win32Forth 6.01. Code runs ten times faster on older cpu's. Absolute addressing makes the VM simple to understand. Five stacks and demos showing why modern Forths need at least 4, and preferably 5 stacks to be viable in today's computer

apForth is Another Portable Forth implementation started as pForth fork.

Buggy C language implementation of my BIF 6809 variant of fig-FORTH. May be interesting to programmers with C background who want to understand the high-level version of the low-level of FORTH. Those requiring a functioning FORTH should look elsewhere. (The releases are usually out of date. Best to browse the code repository and download the latest snapshot.) There is now a basic how-to to get you started in the [wiki]. (The OSDN mirror at http://sourceforge.jp/projects/bif-c/ is becoming inaccessible.)

Everything related to forth programming that has been discussed on the comp.lang.forth usenet newsgroup. The site is dedicated towards improving portability between forth implementations, providing surveys, example implementations, and library modules.

Use Ed's DX-Forth to compile this. You can cross-compile this game on any UNIX system using Joseph Allen's CP/M emulator. It requires VT52 compatible terminal to display correctly. Tested on CP/M Plus running on ZX Spectrum +3 (+3e), ZX Spectrum Next and Amstrad CPC6128. ********** Compatibility note for ZX Spectrum +3 (+3e): make sure SET24X80 is started (e.g. from PROFILE.SUB) before running this game. Compatibility note for Amstrad CPC: make sure 'SETKEYS KEYS.WP' is started (e.g. from PROFILE.SUB) before running this game, otherwise Escape key will not work as expected. **********

This functions library for DX-Forth offers similar capabilities as the Turbo Pascal GSX library and the `cpm-libgsx` C library. Two example Forth programs are also provided for the demonstration purposes.

This is simple Light Cycles imitation written in Forth. Comparing to original game, the carts are moving in waves rather than straight lines. It should compile with DXForth and xplgraph library on DOS and CP/ M systems. For CP/M version of xplgraph library look for my other project: https://sourceforge.net/projects/xplgraph-cpmgsx-dxforth

guiForth is a customized version of pForth that provides bindings to the FLTK library. The initial goal is to create a software development system for the Agenda VR3 PDA, but guiForth should be portable to any platform that has FLTK.

See Wiki for usage and more details.

OS for embedded and mobile devices based on tiny byte-code interpreter and FORTH language compiler (into platform-independent byte-code). In other word its smallest programming language realization works on any type computer with any OS

See Wiki for usage and more details. Originally, xplgraph.scr library for DXForth was written to work on DOS systems only enabling point-and-plot graphics on VGA-compatible graphics devices. DXForth port to the 8-bit CP/M operating system lacked similar capability. The aim of this project is to provide an replacement of the original xplgraph.scr library, exposing roughly the same API, enabling graphics in DXForth running under CP/M. This library is written using DXForth's inline assembly (with all of its cryptic syntax) and uses CP/M's GSX interface. Using this interface enables graphical output to either local screen or remote devices connected through a serial port (like Tektronix 4010 text-and-graphics terminal emulator running on PC). Limitations: - No colors, no shades of gray. Color 0 is blank, others are mapped to solid pixels. - No READPIX function. - PALETTE, SETPAL and SOUNDX are dummy.