Difference between revisions of "4tH"

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Latest revision as of 20:56, 16 August 2018

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Forth compiler with a conventional compiler instead of the standard Forth engine

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, line editor, preprocessor, compiler, decompiler, C-source generator, a virtual machine, and a multitasking environment.


User guide available in HTML format from http://www.xs4all.nl/%7Ethebeez/4tH/4tHmanual.pdf

Related Projects



Verified by

Verified on


Verified by

Janet Casey

Verified on

30 June 2005

Leaders and contributors


Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,SupportHomepagehttp://groups.google.nl/group/4th-compiler

Software prerequisites

This entry (in part or in whole) was last reviewed on 1 February 2010.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.