1911 lines
50 KiB
HTML
1911 lines
50 KiB
HTML
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<title>Build Your Own Lisp Machine · Learn Lisp The Hard Way</title>
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<meta name="author" content=""the Phoeron" Colin J.E. Lupton">
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<ul class="summary">
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<li class="header">LEARN LISP THE HARD WAY</li>
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<li class="chapter " data-level="1.1" data-path="./">
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Second Draft (in-progress)
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CHANGELOG
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<li class="chapter " data-level="1.3" data-path="TODO.html">
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TODO
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<li class="header">PREFACE</li>
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TANSTAAFL
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</a>
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</li>
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<li class="chapter " data-level="2.2" data-path="preface-part-two.html">
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<a href="preface-part-two.html">
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The Hard Way is Easier
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</a>
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</li>
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<li class="chapter " data-level="2.3" data-path="preface-part-three.html">
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Who Is This Book For?
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</a>
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</li>
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<li class="chapter " data-level="2.4" data-path="introduction.html">
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<a href="introduction.html">
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Lisp: A Future History
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</a>
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</li>
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<li class="chapter " data-level="2.5" data-path="acknowledgements.html">
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<a href="acknowledgements.html">
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Acknowledgements
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</a>
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</li>
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<li class="header">PART ONE</li>
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<li class="chapter " data-level="3.1" data-path="1-0-0-overview.html">
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<a href="1-0-0-overview.html">
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Grokking Lisp
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.1.1" data-path="1-01-00-lisp-bootcamp.html">
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<a href="1-01-00-lisp-bootcamp.html">
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Common Lisp Bootcamp
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.1.1.1" data-path="1-01-01-syntax-overview.html">
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<a href="1-01-01-syntax-overview.html">
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Syntax Overview in 5 Minutes
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</a>
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</li>
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<li class="chapter " data-level="3.1.1.2" data-path="1-01-02-repl.html">
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<a href="1-01-02-repl.html">
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The REPL
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</a>
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</li>
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<li class="chapter " data-level="3.1.1.3" data-path="1-01-03-expressions.html">
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<a href="1-01-03-expressions.html">
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Expressions, Parentheses, and Return Values
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</a>
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</li>
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<li class="chapter " data-level="3.1.1.4" data-path="1-01-04-lists-cons-cells.html">
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<a href="1-01-04-lists-cons-cells.html">
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Lists, Cons-Cells, and Memory
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</a>
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</li>
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<li class="chapter " data-level="3.1.1.5" data-path="1-01-05-symbols.html">
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<a href="1-01-05-symbols.html">
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Symbols and Namespaces
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</a>
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</li>
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<li class="chapter " data-level="3.1.1.6" data-path="1-01-06-prefix-notation.html">
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<a href="1-01-06-prefix-notation.html">
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Prefix Notation
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</a>
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</li>
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<li class="chapter " data-level="3.1.1.7" data-path="1-01-07-style-guide.html">
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<a href="1-01-07-style-guide.html">
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Common Lisp Style Guide
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</a>
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</li>
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<li class="chapter " data-level="3.1.1.8" data-path="1-01-08-configuration.html">
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<a href="1-01-08-configuration.html">
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Configuring Your Development Environment
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.1.2" data-path="1-02-00-input-output.html">
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<a href="1-02-00-input-output.html">
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Printing, Streams, and Strings
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.1.2.1" data-path="1-02-01-strings.html">
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<a href="1-02-01-strings.html">
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Strings
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.2" data-path="1-02-02-more-strings.html">
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<a href="1-02-02-more-strings.html">
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More Strings
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.3" data-path="1-02-03-unicode.html">
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<a href="1-02-03-unicode.html">
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Unicode and Strings
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.4" data-path="1-02-04-chars.html">
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<a href="1-02-04-chars.html">
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Characters
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.5" data-path="1-02-05-more-chars.html">
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<a href="1-02-05-more-chars.html">
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More Characters
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.6" data-path="1-02-06-char-codes.html">
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<a href="1-02-06-char-codes.html">
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Character Codes
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.7" data-path="1-02-07-strings-from-chars.html">
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<a href="1-02-07-strings-from-chars.html">
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Strings from Chars
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.8" data-path="1-02-08-printing.html">
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<a href="1-02-08-printing.html">
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Printing
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.9" data-path="1-02-09-more-printing.html">
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<a href="1-02-09-more-printing.html">
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More Printing
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.10" data-path="1-02-10-prin1.html">
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<a href="1-02-10-prin1.html">
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Printing With prin1
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.11" data-path="1-02-11-princ.html">
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<a href="1-02-11-princ.html">
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Printing With princ
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.12" data-path="1-02-12-format.html">
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<a href="1-02-12-format.html">
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A Brief Introduction to Format
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.13" data-path="1-02-13-more-format.html">
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<a href="1-02-13-more-format.html">
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A Little Bit More on Format
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.14" data-path="1-02-14-pathnames.html">
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<a href="1-02-14-pathnames.html">
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Pathnames
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.15" data-path="1-02-15-streams.html">
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<a href="1-02-15-streams.html">
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Streams
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.16" data-path="1-02-16-file-streams.html">
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<a href="1-02-16-file-streams.html">
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File Streams
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.17" data-path="1-02-17-binary-streams.html">
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<a href="1-02-17-binary-streams.html">
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Binary Streams
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.18" data-path="1-02-18-prompting-users.html">
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<a href="1-02-18-prompting-users.html">
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Prompting Users
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</a>
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</li>
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<li class="chapter " data-level="3.1.2.19" data-path="1-02-19-pretty-printing.html">
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<a href="1-02-19-pretty-printing.html">
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Pretty-Printing
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.1.3" data-path="1-03-0-getting-input-from-users.html">
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<a href="1-03-0-getting-input-from-users.html">
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Extra Credit: Getting Input from Users
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</a>
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</li>
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<li class="chapter " data-level="3.1.4" data-path="1-04-0-lists.html">
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<a href="1-04-0-lists.html">
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Lists and List-Operations
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</a>
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</li>
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<li class="chapter " data-level="3.1.5" data-path="1-05-0-lookups-trees.html">
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<a href="1-05-0-lookups-trees.html">
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Extra Credit: Look-up Lists and Trees
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</a>
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</li>
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<li class="chapter " data-level="3.1.6" data-path="1-06-0-math.html">
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<a href="1-06-0-math.html">
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Numbers and Math
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.1.6.1" data-path="1-06-01-integers.html">
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<a href="1-06-01-integers.html">
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Integers
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</a>
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</li>
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<li class="chapter " data-level="3.1.6.2" data-path="1-06-02-more-integers.html">
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<a href="1-06-02-more-integers.html">
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More Integers
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</a>
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</li>
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<li class="chapter " data-level="3.1.6.3" data-path="1-06-03-hexadecimal-notation.html">
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<a href="1-06-03-hexadecimal-notation.html">
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Hexadecimal Integer Notation
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</a>
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</li>
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<li class="chapter " data-level="3.1.6.4" data-path="1-06-04-octal-notation.html">
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<a href="1-06-04-octal-notation.html">
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Octal Integer Notation
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</a>
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</li>
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<li class="chapter " data-level="3.1.6.5" data-path="1-06-05-binary-notation.html">
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<a href="1-06-05-binary-notation.html">
|
|
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|
|
Binary Integer Notation
|
|
|
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</a>
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</li>
|
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<li class="chapter " data-level="3.1.6.6" data-path="1-06-06-ratios.html">
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|
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|
<a href="1-06-06-ratios.html">
|
|
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|
|
|
Ratios and Rational Numbers
|
|
|
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</a>
|
|
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|
|
|
|
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</li>
|
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|
<li class="chapter " data-level="3.1.6.7" data-path="1-06-07-floating-point.html">
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|
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<a href="1-06-07-floating-point.html">
|
|
|
|
|
|
Floating-point Numbers
|
|
|
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</a>
|
|
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|
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|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.8" data-path="1-06-08-constants.html">
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<a href="1-06-08-constants.html">
|
|
|
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|
|
Numeric Constants
|
|
|
|
</a>
|
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|
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|
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</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.9" data-path="1-06-09-complex-numbers.html">
|
|
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<a href="1-06-09-complex-numbers.html">
|
|
|
|
|
|
Complex Numbers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.10" data-path="1-06-10-arithmetic.html">
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|
|
<a href="1-06-10-arithmetic.html">
|
|
|
|
|
|
Arithmetic
|
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|
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</a>
|
|
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|
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</li>
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|
|
<li class="chapter " data-level="3.1.6.11" data-path="1-06-11-more-arithmetic.html">
|
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|
<a href="1-06-11-more-arithmetic.html">
|
|
|
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|
|
More Arithmetic
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|
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</a>
|
|
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|
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</li>
|
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|
|
<li class="chapter " data-level="3.1.6.12" data-path="1-06-12-even-more-arithmetic.html">
|
|
|
|
<a href="1-06-12-even-more-arithmetic.html">
|
|
|
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|
|
Even More Arithmetic
|
|
|
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</a>
|
|
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|
|
|
|
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</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.13" data-path="1-06-13-exponents.html">
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|
<a href="1-06-13-exponents.html">
|
|
|
|
|
|
Exponents
|
|
|
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</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.14" data-path="1-06-14-logarithms.html">
|
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|
<a href="1-06-14-logarithms.html">
|
|
|
|
|
|
Logarithms
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.15" data-path="1-06-15-trigonometry.html">
|
|
|
|
<a href="1-06-15-trigonometry.html">
|
|
|
|
|
|
Trigonometry
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.16" data-path="1-06-16-psuedorandom-numbers.html">
|
|
|
|
<a href="1-06-16-psuedorandom-numbers.html">
|
|
|
|
|
|
Pseudo-Random Numbers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.7" data-path="1-07-0-arrays.html">
|
|
|
|
<a href="1-07-0-arrays.html">
|
|
|
|
|
|
Extra Credit: Arrays and Vectors
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.8" data-path="1-08-0-variables.html">
|
|
|
|
<a href="1-08-0-variables.html">
|
|
|
|
|
|
Variables, Parameters, and Constants
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.9" data-path="1-09-0-closures.html">
|
|
|
|
<a href="1-09-0-closures.html">
|
|
|
|
|
|
Extra Credit: Closures
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.10" data-path="1-10-0-functions.html">
|
|
|
|
<a href="1-10-0-functions.html">
|
|
|
|
|
|
Functions and Macros
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.11" data-path="1-11-0-text-adventure.html">
|
|
|
|
<a href="1-11-0-text-adventure.html">
|
|
|
|
|
|
Extra Credit: A Simple Text Adventure
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.12" data-path="1-12-0-namespaces.html">
|
|
|
|
<a href="1-12-0-namespaces.html">
|
|
|
|
|
|
Namespaces, Symbols, Packages, and Systems
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.13" data-path="1-13-0-simple-web-app.html">
|
|
|
|
<a href="1-13-0-simple-web-app.html">
|
|
|
|
|
|
Extra Credit: A Simple Web Application
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.14" data-path="1-14-0-conditionals.html">
|
|
|
|
<a href="1-14-0-conditionals.html">
|
|
|
|
|
|
Conditionals
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.15" data-path="1-15-0-command-line-utility.html">
|
|
|
|
<a href="1-15-0-command-line-utility.html">
|
|
|
|
|
|
Extra Credit: Command-Line Utilities
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.16" data-path="1-16-0-map-loop.html">
|
|
|
|
<a href="1-16-0-map-loop.html">
|
|
|
|
|
|
Mapping and Looping
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.17" data-path="1-17-0-iterate.html">
|
|
|
|
<a href="1-17-0-iterate.html">
|
|
|
|
|
|
Extra Credit: Revisiting Loops with Iterate
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.18" data-path="1-18-0-format.html">
|
|
|
|
<a href="1-18-0-format.html">
|
|
|
|
|
|
Format Strings
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.19" data-path="1-19-0-dsl.html">
|
|
|
|
<a href="1-19-0-dsl.html">
|
|
|
|
|
|
Extra Credit: Domain Specific Languages
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.20" data-path="1-20-0-review.html">
|
|
|
|
<a href="1-20-0-review.html">
|
|
|
|
|
|
Part One in Review
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">PART TWO</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="4.1" data-path="2-0-0-overview.html">
|
|
|
|
<a href="2-0-0-overview.html">
|
|
|
|
|
|
The Suffusion of Blue
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.1.1" data-path="2-01-0-programming-paradigms.html">
|
|
|
|
<a href="2-01-0-programming-paradigms.html">
|
|
|
|
|
|
Programming Paradigms
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.2" data-path="2-02-0-regex.html">
|
|
|
|
<a href="2-02-0-regex.html">
|
|
|
|
|
|
Extra Credit: Regular Expressions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.3" data-path="2-03-0-objects-control.html">
|
|
|
|
<a href="2-03-0-objects-control.html">
|
|
|
|
|
|
Objects and Control Structures
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.4" data-path="2-04-0-data-persistence.html">
|
|
|
|
<a href="2-04-0-data-persistence.html">
|
|
|
|
|
|
Extra Credit: Persistence and Databases
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.5" data-path="2-05-0-extended-types.html">
|
|
|
|
<a href="2-05-0-extended-types.html">
|
|
|
|
|
|
Extended Types
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.6" data-path="2-06-0-threads-memos-parallel.html">
|
|
|
|
<a href="2-06-0-threads-memos-parallel.html">
|
|
|
|
|
|
Extra Credit: Concurrency and Memoization
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.7" data-path="2-07-0-logic-and-more-math.html">
|
|
|
|
<a href="2-07-0-logic-and-more-math.html">
|
|
|
|
|
|
Logic and Advanced Math
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.8" data-path="2-08-0-number-theory.html">
|
|
|
|
<a href="2-08-0-number-theory.html">
|
|
|
|
|
|
Extra Credit: Number Theory
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.9" data-path="2-09-0-binary-octets-bits.html">
|
|
|
|
<a href="2-09-0-binary-octets-bits.html">
|
|
|
|
|
|
Binary Streams, Octet-Vectors, and Bit-Vectors
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.10" data-path="2-10-0-improved-text-adventure-engine.html">
|
|
|
|
<a href="2-10-0-improved-text-adventure-engine.html">
|
|
|
|
|
|
Extra Credit: An Improved Text Adventure Engine
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.11" data-path="2-11-0-conditions.html">
|
|
|
|
<a href="2-11-0-conditions.html">
|
|
|
|
|
|
Conditions and Error Handling
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.12" data-path="2-12-0-2d-game.html">
|
|
|
|
<a href="2-12-0-2d-game.html">
|
|
|
|
|
|
Extra Credit: Write a 2D Game
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.13" data-path="2-13-0-compiler.html">
|
|
|
|
<a href="2-13-0-compiler.html">
|
|
|
|
|
|
The Compiler
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.14" data-path="2-14-0-tree-shaker.html">
|
|
|
|
<a href="2-14-0-tree-shaker.html">
|
|
|
|
|
|
Extra Credit: Write a Tree-Shaker
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.15" data-path="2-15-0-docs-and-inspection.html">
|
|
|
|
<a href="2-15-0-docs-and-inspection.html">
|
|
|
|
|
|
Documentation and Inspection
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.16" data-path="2-16-0-foreign-libs.html">
|
|
|
|
<a href="2-16-0-foreign-libs.html">
|
|
|
|
|
|
Extra Credit: Foreign Libraries in Lisp
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.17" data-path="2-17-0-debugging-testing.html">
|
|
|
|
<a href="2-17-0-debugging-testing.html">
|
|
|
|
|
|
Debugging and Unit Testing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.18" data-path="2-18-0-ffi.html">
|
|
|
|
<a href="2-18-0-ffi.html">
|
|
|
|
|
|
Extra Credit: Write a Foreign Function Interface
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.19" data-path="2-19-0-essential-libs.html">
|
|
|
|
<a href="2-19-0-essential-libs.html">
|
|
|
|
|
|
Essential Lisp Libraries
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.20" data-path="2-20-0-packaging-libs.html">
|
|
|
|
<a href="2-20-0-packaging-libs.html">
|
|
|
|
|
|
Extra Credit: Packaging Lisp Libraries
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.21" data-path="2-21-0-review.html">
|
|
|
|
<a href="2-21-0-review.html">
|
|
|
|
|
|
Detailed Syntax Review
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">PART THREE</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="5.1" data-path="3-00-00-overview.html">
|
|
|
|
<a href="3-00-00-overview.html">
|
|
|
|
|
|
Lisp So(u)rcery
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.1.1" data-path="3-01-00-web-apps.html">
|
|
|
|
<a href="3-01-00-web-apps.html">
|
|
|
|
|
|
Real-world Web Apps
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.2" data-path="3-02-00-typesetting.html">
|
|
|
|
<a href="3-02-00-typesetting.html">
|
|
|
|
|
|
Typesetting
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.3" data-path="3-03-00-mobile.html">
|
|
|
|
<a href="3-03-00-mobile.html">
|
|
|
|
|
|
Native Mobile Applications
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.4" data-path="3-04-00-gui.html">
|
|
|
|
<a href="3-04-00-gui.html">
|
|
|
|
|
|
Cross-platform Desktop Applications
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.5" data-path="3-05-00-system-utils.html">
|
|
|
|
<a href="3-05-00-system-utils.html">
|
|
|
|
|
|
Drivers, Daemons, and System-Utilities
|
|
|
|
</a>
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<!-- Title -->
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<h1>
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<a href="index.html" >Build Your Own Lisp Machine</a>
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<h1 id="chapter-322">Chapter 3.22</h1>
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<h2 id="build-your-own-lisp-machine">Build Your Own Lisp Machine</h2>
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<blockquote>
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<p>"Revolution is an art that I pursue rather than a goal I expect to achieve. Nor is this a source of dismay; a lost cause can be as spiritually satisfying as a victory."</p>
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<footer>Robert A. Heinlein, <em>The Moon Is a Harsh Mistress</em></footer>
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</blockquote>
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<p><strong>Note:</strong> <em>the exercises in this chapter will require specialized hardware components to complete, and due to the prohibitive cost and lack of availability for some readers, it should be considered optional</em>.</p>
|
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<p>Few topics capture the imagination of budding Lisp Hackers more than the legendary Lisp Machines of the 70s and 80s---the first personal workstations in a world of time-shared, multi-user mainframes, with a fully integrated and interactive hardware and software environment, that seemed to offer unrivaled competitive-edge for the team that could afford them. Unfortunately, with the rise of IBM-Compatible Personal Computers, available at a fraction of the cost, the highly specialized and costly Lisp Machines were the first casualties of the AI Winter. But the dream of the Lisp Machine has never died.</p>
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<p>Back in the 80s, there were a significant number of competing architectures, the various Lisp Machine chipsets being only a small number of them; but over the past 30 years, there has been a significant push by Intel to be the dominant architecture through a process of generalization---by developing a processor architecture that was more generally useful to multiple platforms and purposes, instead of being specialized, they were able to cater to more users and rapidly seize control of the largest market share---even going so far as to partner with Apple, to unify the underlying, previously competing architectures of Macintosh and IBM-Compatible PCs.</p>
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<p>But over the past decade, there has been a shift back towards specialized hardware, heavily prompted by the Internet-of-Things movement and the surprising success of mobile devices and smartphones. These days, reprogrammable hardware is available for little more than a full professional workstation, and once a chipset design has been tested extensively on an FPGA-based board, it can be ported to an ASIC design for microfabrication by a host of companies with competitive rates. These days, pretty much anyone can design, test, and implement a custom computer architecture, and get their design built and shipped to their front door as a big wafer. In one sense, it's a little silly, since this plethora of home-built architectures means more and more platforms exist, for which there is no compatible software or compilers---but combined with a sensible use of an existing standard instruction set, it does make for a powerful toolchain for the home inventor.</p>
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<p>As we have already covered in previous chapters, it's common knowledge that Lisp can be defined in Lisp---so it stands to reason to also implement the architecture of a Lisp Machine in Lisp, that can be output to the synthesizable Verilog code that will be written to the FPGA or used to fabricate an ASIC. And by implementing the core constructs of the language as the machine language of a Lisp Machine, you eliminate one of the most troublesome aspects of compiler design and optimization.</p>
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<p>This chapter will contain a review of available FPGA-based boards and ASIC manufacturers; a brief primer on synthesizable Verilog, and a DSL for producing Verilog/VHDL from Common Lisp source-code; and a schema for a 64-bit Lisp Machine. As an extra credit exercise, we will modify an existing Common Lisp implementation to run directly on this Lisp Machine and use it as the basis for a LispOS for your new Lisp Machine.</p>
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<h3 id="exercise-3221">Exercise 3.22.1</h3>
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<p><strong>Hardware Prototyping and Fabrication</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-3222">Exercise 3.22.2</h3>
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<p><strong>Field Programmable Gate Arrays</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-3223">Exercise 3.22.3</h3>
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<p><strong>Application-Specific Integrated Circuits</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-3224">Exercise 3.22.4</h3>
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<p><strong>Prototyping CPUs</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-3225">Exercise 3.22.5</h3>
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<p><strong>Synthesizable Verilog</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-3226">Exercise 3.22.6</h3>
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<p><strong>More Synthesizable Verilog</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-3227">Exercise 3.22.7</h3>
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<p><strong>Even More Synthesizable Verilog</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-3228">Exercise 3.22.8</h3>
|
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<p><strong>Generating Verilog/VHDL from Common Lisp</strong></p>
|
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="project-3229">Project 3.22.9</h3>
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<p><strong>A DSL for Verilog/VHDL</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-32210">Exercise 3.22.10</h3>
|
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<p><strong>Hardware Support for Common Lisp's Special Forms</strong></p>
|
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-32211">Exercise 3.22.11</h3>
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<p><strong>The Lisp Machine's Memory Model</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="exercise-32212">Exercise 3.22.12</h3>
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<p><strong>A 64-Bit Lisp Machine Architecture</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="project-32213">Project 3.22.13</h3>
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<p><strong>Common Lisp for the Lisp Machine</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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<h3 id="project-32214">Project 3.22.14</h3>
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<p><strong>Porting the LispOS to the Lisp Machine Architecture</strong></p>
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<pre><code class="lang-lisp">
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</code></pre>
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