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William Patterson's DOS port of the classic Intercal-to-C compiler coauthored by Eric S. Raymond.
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Specification clarifications, implementation notes regarding the C-Intercal compiler, and literature references for those interested in background information on COME FROM and friends.
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Idiom's catalog of free compilers and interpreters mentions Intercal.
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This was author's first exercise in INTERCAL programming. It counts down from 500 all the way down to one. It's that simple!
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Short introduction to Intercal, detailing Intercal's distinctivenesses in comparison to other languages.
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Urban Nilsson's collection of INTERCAL programs.
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Surprisingly readable chunk of C-Intercal-only source code written by Clemens Meier.
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Original specification.
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Unofficial Intercal language homepage, maintained by C-Intercal implementor Eric S. Raymond. Documentation, implementations, papers, and tools.
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Featuring a ROT-13 routine and a short link list.
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Features the original specification and a sample source code collection. Links to several compilers and to other Intercal-related sites.
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Compiled from the original specification and from the comments and clarifications by Howell and Raymond.
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Article and site, non-fiction, and journalism indexes.
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Intercal source code by Louis Howell.
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Malcolm Ryan's proposed standard for Threaded Intercal, version 0.2.
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Using Intercal in Perl.