Open Source Forth Software

Mecrisp - A family of optimising native code Forth implementations for MSP430, ARM Cortex M, RISC-V RV32IM(C), MIPS M4K and FPGAs.

Thinking Forth captures the philosophy of the language to show users how to write more readable, better maintainable applications. This project makes the book available in electronic form (LaTeX and PDF).

ANS Forth for Win32 and Linux/x86 (used to compile the following SF projects: acWEB, acFTP, acFreeProxy, acSMTP, Forth-Script)

Snd is a sound editor.

4tH is a Forth compiler with a little difference. Instead of the standard Forth engine it features a conventional compiler. 4tH is a very small compiler that can create bytecode, C-embeddable bytecode, standalone executables, but also works fine as a scripting language. It supports about 95% of the ANS Forth CORE wordset and features conditional compilation, pipes, files, assertions, forward declarations, enumerations, structures, suspended execution, recursion, include files, etc. It comes with an RPN calculator, BASIC interpreter, line editor, preprocessor, compiler, decompiler, C-source generator, a virtual machine, and a multitasking environment.

The Portable Forth Environment implements the ANSI Forth Standard, it is fully written in C, the newer version has a module concept, and it is fully multithreaded. Autoconf used. Tested in embedded environments.

FlashForth is a standalone Forth system for the Microchip PIC 18, 24, 30, 33 and the Atmel Atmega series of microcontrollers. A Forth system with interpreter, compiler, assembler and multitasker is provided.

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

VolksForth is a 16bit Forth System with the goal to produce a manageable Forthsystem for computer systems with restricted system resources.

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."

amforth is an extendable command interpreter running on AVR ATmega and TI MSP430 microcontrollers. The Risc-V and ARM architectures are ascending. Turnkey actions for IoT workloads are possible as well. The command language is close to the Forth 2012 standard.

Unofficial user documentation for the Mecrisp-Stellaris Forth programming language on ARM Cortex-M microprocessors. Includes a index, search function, projects, pictures and Youtube video links. This Documentation is designed for Forth Beginners.

MinForth V3.4 is a classic Forth system with command-line interface. Development resource requirements are minimal. A source text editor and a C compiler are sufficient. By design no toolchain is required to adapt or rebuild MinForth. A complete rebuild takes only few seconds. Current sources are for Windows and Linux (32-bit or 64-bit). MinForth primitive definitions are written in mixed Forth and C language and are transpiled to pure C code. Main but not exclusive application for the transpiler is to build the MinForth V3.4 high-level Forth compiler. MinForth V3.4 is widely conformant to the Forth-2012 draft standard and passes the usual test suites. Feedback and bug reports are welcome per - Usenet forum https://groups.google.com/forum/#!forum/comp.lang.forth - email to minforth@gmx.net

Tachyon was originally developed for the Parallax Propeller 8-core MCU because I need to do more and faster, and within the the limited memory, in order to produce firmware for my commercial embedded hardware products. When the much vaunted successor, the P2 was introduced, then Tachyon was upgraded and also built into the P2 ROM as TAQOZ. Source code can be sent or pasted from the PC terminal at high speed (921,600 default) without any terminal delays and compiled into RAM ready for backup into SD or Flash. TAQOZ RELOADED, the full version of Tachyon for the P2 can be booted from SD cards or Flash and has all the tools needed to develop and test code interactively on the target MCU. Please browse the wiki pages for howtos and information on all matters regarding Tachyon/TAQOZ and the P1 and P2. There's even a Tachyon layer that runs on Mecrisp on the RP2040 too.

Ficl is a lightweight, embeddable scripting language designed to be incorporated into other programs, including memory constrained embedded systems. Ficl conforms to the 1994 ANSI Standard for Forth, and provides several useful extensions including object oriented programming that can wrap compiled code and hardware interfaces. Unlike Lua or Python, Ficl acts as a component of your system - you feed it stuff to do, it does the stuff, and comes back to you for more. You can export compiled code to Ficl, execute Ficl code from your compiled code, or interact. Your choice. Ficl includes a simple but capable object model that can wrap existing data structures. Applications include scripting, hardware bring-up, rapid prototyping, and system extensions.

FTH provides running stand alone Forth scripts like Ruby etc. and using Forth as an extension language to your application.

Forth compiler for the Compiled Virtual Machine

bigFORTH is a native code Forth for x86 processors. MINOS is a portable GUI library for X11 and Win32, written in object oriented Forth, and includes the form editor Theseus.

Re-live this classic story as an interactive 3D real-time action/adventure. Lead one of the world's greatest warriors, Achilles, through an almost never ending maze of encounters. All significant themes of the epic poem are explored. You'll discover the substance of heroism as well as the concepts of glory and honor by attempting to control the consuming rage within Achilles. Minimum requirements: JSR-184(Mobile 3D Graphics), CLDC 1.1, MIDP 2.0 Java/J2ME device with 1.5 megabytes of heap space

acWEB is an OpenSource replacement for MS IIS and other proprietary WEB servers for Windows. Unlike IIS, acWEB is not affected by viruses like CodeRed, Nimda, etc :).

A 21 Century Boot system for the Tandy Color Computer series of 1980's computers. The aim is to create a unified, scriptable boot system for both new and old storage devices * THIS PROJECT HAS BEEN MOVED TO: https://code.google.com/p/legsforth/

A lightweight, portable, event-based HTTP server written in Forth

DieRoller is a PalmOS application for gamers, written in Quartus Forth. It allows you to roll up to 8 multi-sided dice, and display the roll results as well as the sum. DieRoller is freeware, and Quartus Forth source code is included. In order to work

F- is an ANSish Forth that uses a VM generator to compile Forth into C-based VM suitable for living in a C-based (or assembly or HDL) microcontroller project. The VM supplies 32-bit math, I/O, multitasking and debugger in a ROM footprint as small as 4kB.

Libraries and frameworks for efficient and scalable concurrency in Forth.