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<!DOCTYPE html>
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<html>
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<head>
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<title>Liz's L-Program Compiler</title>
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<link rel="stylesheet" type="text/css" href=
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"codemirror/codemirror.css">
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<link rel="stylesheet" type="text/css" href="css/styles.css">
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</head>
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<body>
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<div class="container">
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<h1>Liz's L-Program Compiler</h1>
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<p><i>Developed for Kulyukin's CS5000</i></p>
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<hr>
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<div class="source-container">
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<div class="textarea-container">
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<h3>L Source</h3>
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<textarea id=
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"instructions">// 0. primitive instructions only
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// 1. labels match the regex [A-E](:digit:)+.
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// 2. variables are initialized to zero and match
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// (Y | (X|Z)(:digit:)+).
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// 3. instructions must be delimited by a newline.
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// 4. anything following the comment token "//" up to a
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// newline are ignored.
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// 5. by default, a computation that takes more than 500_000
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// "procedures", it will be halted.
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// 6. the implicit exit label "E1" exists; thus to exit
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// prematurely, "GOTO E1".
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// 7. input your initial snapshot in the "variables" map
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// on the Program in the compiled JS output
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// 8. for a more detailed view on the grammar, it's at
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// /godel/grammar.peg
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// THIS PROGRAM COMPUTES X1 + X2
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// Y <- X1
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[ A1 ] IF X1 != 0 GOTO A2
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GOTO B1
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[ A2 ] X1 <- X1 - 1
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Y <- Y + 1
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GOTO A1
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// Z1 <- X2
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[ B1 ] IF X2 != 0 GOTO B2
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GOTO C1
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[ B2 ] X2 <- X2 - 1
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Z1 <- Z1 + 1
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GOTO B1
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// Y <- Y + Z1
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[ C1 ] IF Z1 != 0 GOTO C2
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GOTO E1
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[ C2 ] Z1 <- Z1 - 1
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Y <- Y + 1
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GOTO C1</textarea>
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<div>
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<button id="compile">Compile</button> <button id=
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"copy">Copy</button>
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</div>
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<div>
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<span style="margin-left: 0.5rem" id=
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"compile_status"></span>
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</div>
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</div>
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<div class="textarea-container">
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<h3>Compiled JS</h3>
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<textarea id="compiled"></textarea>
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<div>
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<button id="eval">Eval</button>
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</div>
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<div>
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<span style="margin-left: 0.5rem" id=
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"eval_status"></span>
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</div>
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</div>
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</div>
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<div class="textarea-container">
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<h3>Godel</h3>
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<p>Sequence:</p>
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<pre id="godel_sequence"></pre>
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<div>
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<p>Number: <button id="godel_number_comp" style=
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"display: none">Compute (this might take a
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while)</button></p>
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</div>
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<pre id="godel_number"></pre>
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</div>
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</div>
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<script src="codemirror/codemirror.js"></script>
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<script src="js-beautify/js-beautify.js"></script>
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<script src="js/observable.js"></script>
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<script src="js/parser.js"></script>
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<script src="js/compiler.js"></script>
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<script src="js/main.js"></script>
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</body>
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</html>
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