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RetroForth

RetroForth is a modern, pragmatic Forth drawing influence from many sources. It clean, elegant, tiny, easy to grasp, and adaptable to many tasks.

It's not a traditional Forth. Drawing influence from colorForth, it uses prefixes to guide the compiler. From Joy and Factor, it uses quotations (anonymous, nestable functions) and combinators (functions that operate on functions) for much of the stack and flow control. It also adds vocabularies for working with strings, arrays, and other data types. Source files are written in Unu, allowing for simple, literate sources.

The source and documentation are distributed under the ISC license.

Community

#retro on irc.libera.chat

#retro:libera.chat (Matrix)

IRC Logs

Bug Reports

Overview

RetroForth runs on Nga, a tiny virtual machine emulating a MISC style processor. Implementations of this are included in 65c816 Assembly, C, C++, C#, JavaScript, Nim, Pascal, Python, Rust, Swift, and Retro.