Gourt > Computers > Programming > Languages > Befunge
Befunge is a stack-based, reflective, esoteric fungeoid programming language. It differs from conventional languages in that programs are arranged on a two-dimensional grid. "Arrow" instructions direct the control flow to the left, right, up or down, and loops are constructed by sending the control flow in a circle.
History
The language was originally created by Chris Pressey in 1993 as an attempt to devise a language which is as hard to compile as humanly possible — note that the
p command allows for self-modifying code. Nevertheless, a number of compilers have subsequently been written. A number of extensions to the original "Befunge-93" specification also exist, including Funge-98, which extends the concept to an arbitrary number of dimensions and can be multithreaded, with multiple instruction pointers operating simultaneously on the same space. Befunge-extensions and variants are called Fungeoids or just Funges.
The Befunge-93 specification restricts each valid program to a grid of 80 instructions horizontally by 25 instructions vertically. Program execution which exceeds these limits "wraps around" to a corresponding point on the other side of the grid; a Befunge program is in this manner topologically equivalent to a torus. Since a Befunge-93 program can only have a single stack and its storage array is bounded, the Befunge-93 language is, unlike most machine languages, not Turing-complete. The later Funge-98 specification provides Turing-completeness by removing the size restrictions on the program; rather than wrapping around at a fixed limit, the movement of a Funge-98 instruction pointer follows a model dubbed "Lahey-space" after its originator, Chris Lahey. In this model, the grid behaves like a torus of finite size with respect to wrapping, while still allowing itself to be extended indefinitely.
More on [ Befunge ]
Intercal :: Languages
Procedural :: Interpreted
Obfuscated :: Languages
Procedural :: Languages
Reflective :: Languages
nai submits 9B of Befunge for echo, ranking #15 (5555pts).
mircbot (mircbot) Wed, 23 Dec 2009 06:59:44 -0000
nai submits 9B of Befunge for echo, ranking #15 (5555pts).
Befunge ã¯ããã°ã©ãã³ã°è¨èªã®ä¸ã¤ãæç¶ãåãã¹ã¿ãã¯åã§ãèªå·±å¤æ´çãªè¨èªã§ããã "Befunge - Wikipedia" http://tinyurl.com/y9489pz
Iori_o (æ©ç°ä¼ç¹(Iori ONDA)) Tue, 22 Dec 2009 16:03:42 -0000
Befunge はプログラミング言語の一つ。手続き型、スタック型で、自己変更的な言語である。 "Befunge - Wikipedia" http://tinyurl.com/y9489pz
RT @beoplejp: new track "befunge" & "false" on myspace, http://www.myspace.com/beople
dagshenma (ä¼è¯ãçºç·) Tue, 22 Dec 2009 08:22:18 -0000
RT @beoplejp: new track "befunge" & "false" on myspace, http://www.myspace.com/beople
new track "befunge" & "false" on myspace, http://www.myspace.com/beople
beoplejp (beople) Tue, 22 Dec 2009 07:11:46 -0000
new track "befunge" & "false" on myspace, http://www.myspace.com/beople
nai submits 4B of Befunge for ultimate problem, ranking #11 (10000pts).
mircbot (mircbot) Tue, 22 Dec 2009 04:23:12 -0000
nai submits 4B of Befunge for ultimate problem, ranking #11 (10000pts).
nai submits 5B of Befunge for ultimate problem, ranking #16 (8000pts).
mircbot (mircbot) Tue, 22 Dec 2009 04:06:35 -0000
nai submits 5B of Befunge for ultimate problem, ranking #16 (8000pts).
Program - Three-line chunk of source code written by Tim Gilbert.
Befunge CPAN Module - Official Perl extension for interpreting Befunge.
500
Cat's Eye Technologies' Befunge-93 - The official web site for the Befunge-93 programming language; maintained by Chris Pressey, the creator of Befunge.
Dictionary of Programming Languages Befunge Page - Brief language fact sheet, complete with links to conceptually related languages.
Dufflebunk's - Two Funge implementations. JavaScript Funge: Funge-98 in JavaScript. Object-Oriented Funge.
Meta Description: [ Dufflebunk's site about Funge, object oriented Funge, and various other projects by Dufflebunk. ]
Funge-98 Final Specification - The official specification for the 1998 revision to Befunge-93.
404
Mooz's Befunge Programs - A number of programs written in and related to Befunge. Includes an interpreter for the TI-86 calculator and an example of how to do floating point division in Befunge.
Ninety-Nine Bottles of Beer - Befunge version of the infamous beer song program.
Tim's Befunge Compiler - This pseudo-compiler will create an ANSI C program from a Befunge-93 source file. Programs can still be self-modifying even after they are compiled.
VSync's Funge Stuff - Features a portable Befunge-93 pseudocompiler and several other compilers and interpreters. Demonstrates how to use Befunge as a CGI scripting language.
500
Wierd - Absolutely sick Befunge-descendant language.
Yabi93 - Yet Another Befunge93 Interpreter, for the esoteric programming language, coded in Java 1.5, uses Swing for graphical interface. YABI supports a multilanguage GUI.
ZBefunge - A Befunge-93 interpreter written in Inform, and runnable on just about anything.
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