1: Gforth is a fast and portable implementation of the ANS Forth
2: language. It works nicely with the Emacs editor, offers some nice
3: features such as input completion and history, backtraces, a
4: decompiler and a powerful locals facility, and it even has a
5: manual. Gforth combines traditional implementation techniques with
6: newer techniques for portability and performance: its inner
7: interpreter is direct threaded with several optimizations, but you can
8: also use a traditional-style indirect threaded interpreter. Gforth is
9: distributed under the GNU General Public license (see COPYING).
11: Gforth runs under GNU, BSD, and similar systems, MS Windows, MacOS X,
12: OS/2, and DOS and should not be hard to port to other systems
13: supported by GCC. This version has been tested successfully on the
14: following platforms:
32: Read INSTALL for installation instructions from source, or INSTALL.DOS
33: for DOS, Windows, and OS/2 from source, or INSTALL.BINDIST if you have
34: a binary package distributed as .tar.gz or .zip file. If you received
35: a self-installing executable, just run it and follow the instructions.
37: To start the system, just say `gforth' (after installing it).
39: You can find new versions of Gforth at ftp://ftp.gnu.org/gnu/gforth/
40: and its mirrors or at
46: The latter site also contains binary distributions of Gforth for some
47: popular platforms.
49: If you want to work on Gforth, mail me. Tasks to be done can be found
50: in ToDo; but if you would like to do something not mentioned there,
51: it's ok, too. In any case, we would like to hear what you are
52: doing. The most important tasks IMO are the missing ANS Forth words,
53: the documentation and the foreign language interface for C.
55: On popular request, here are the meanings of unusual file extensions:
57: *.fs Forth stream source file (include with "include <file>" from within
58: gforth, or start with "gforth <file1> <file2> ...")
59: *.fi Forth image files (start with "gforth -i <image file>")
60: *.fb Forth blocks file (load with "use <block file> 1 load")
61: *.i C include files
62: *.ds documenation source
63: *TAGS etags files
65: A number of Forth source files are included in this package that are
66: not necessary for building Gforth. Not all of them are mentioned in
67: the rest of the documentation, so here's a short overview:
70: code.fs random.fs more.fs ansi.fs colorize.fs
71: oof.fs oofsampl.fs objects.fs blocked.fb tasker.fs
74: ans-report.fs etags.fs glosgen.fs filedump.fs
77: tt.fs sokoban.fs
79: Test programs (for testing Forth systems):
83: bubble.fs siev.fs matrix.fs fib.fs
85: ANS Forth implementations of Gforth extensions:
86: compat/*.fs other.fs
88: For discussions about Gforth, use the Usenet newsgroup
89: comp.lang.forth. If you prefer not to post on Usenet, there is also a
90: mailing list: GForth@ChaosSolutions.org. To subscribe, send a mail to
91: firstname.lastname@example.org@ChaosSolutions.org with:
93: subscribe GForth
95: as the first and only line within the message body. Submit bug
96: reports through
100: (whether you post them or not).
102: - anton
106: Copyright (C) 1995,1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc.
108: This file is part of Gforth.
110: Gforth is free software; you can redistribute it and/or
111: modify it under the terms of the GNU General Public License
112: as published by the Free Software Foundation; either version 2
113: of the License, or (at your option) any later version.
115: This program is distributed in the hope that it will be useful,
116: but WITHOUT ANY WARRANTY; without even the implied warranty of
117: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
118: GNU General Public License for more details.
120: You should have received a copy of the GNU General Public License
121: along with this program; if not, write to the Free Software
122: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.