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<head>
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<title>Veneer Template</title>
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<h1><a href="../index.html">
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<img src="../docs-assets/Inform.png" height=72">
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</a></h1>
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<ul><li><a href="../index.html">home</a></li>
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</ul><h2>Compiler</h2><ul>
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<li><a href="../inform7n.html">inform7</a></li>
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</ul><h2>Related Projects</h2><ul>
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<main role="main">
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<!--Weave of 'Veneer Template' generated by Inweb-->
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../extensions.html">Kits</a></li><li><a href="index.html">Architecture16Kit</a></li><li><b>Veneer Template</b></li></ul></div>
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<p class="purpose">Veneer code for use by the Inform 6 compiler with the Z-machine target.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>These functions have strange-looking names special to the Inform 6 compiler,
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which uses them to replace its default "veneer" functions. If we're compiling
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to something other than Inform 6, though, they are just strangely-named functions,
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and do no harm.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax">[ </span><span class="identifier-syntax">Unsigned__Compare</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> </span><span class="identifier-syntax">y</span><span class="plain-syntax"> </span><span class="identifier-syntax">u</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">je</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> </span><span class="identifier-syntax">y</span><span class="plain-syntax"> ?</span><span class="reserved-syntax">rfalse</span><span class="plain-syntax">; </span><span class="comment-syntax">i.e., return 0</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">jl</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> ?</span><span class="identifier-syntax">XNegative</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="comment-syntax">So here x >= 0 and x ~= y</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">jl</span><span class="plain-syntax"> </span><span class="identifier-syntax">y</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> ?</span><span class="identifier-syntax">XPosYNeg</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="comment-syntax">Here x >=0, y >= 0, x ~= y</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">jg</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> </span><span class="identifier-syntax">y</span><span class="plain-syntax"> ?</span><span class="reserved-syntax">rtrue</span><span class="plain-syntax">; </span><span class="comment-syntax">i.e., return 1</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">ret</span><span class="plain-syntax"> -1;</span>
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<span class="plain-syntax"> .</span><span class="identifier-syntax">XPosYNeg</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="comment-syntax">Here x >= 0, y < 0, x ~= y</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">ret</span><span class="plain-syntax"> -1;</span>
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<span class="plain-syntax"> .</span><span class="identifier-syntax">XNegative</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">jl</span><span class="plain-syntax"> </span><span class="identifier-syntax">y</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> ?~</span><span class="reserved-syntax">rtrue</span><span class="plain-syntax">; </span><span class="comment-syntax">if x < 0, y >= 0, return 1</span>
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<span class="plain-syntax"> </span><span class="comment-syntax">Here x < 0, y < 0, x ~= y</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">jg</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><span class="plain-syntax"> </span><span class="identifier-syntax">y</span><span class="plain-syntax"> ?</span><span class="reserved-syntax">rtrue</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">ret</span><span class="plain-syntax"> -1;</span>
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<span class="plain-syntax">];</span>
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<span class="plain-syntax">[ </span><span class="identifier-syntax">RT__ChLDW</span><span class="plain-syntax"> </span><span class="identifier-syntax">base</span><span class="plain-syntax"> </span><span class="identifier-syntax">offset</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">loadw</span><span class="plain-syntax"> </span><span class="identifier-syntax">base</span><span class="plain-syntax"> </span><span class="identifier-syntax">offset</span><span class="plain-syntax"> -> </span><span class="identifier-syntax">sp</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> @</span><span class="identifier-syntax">ret</span><span class="plain-syntax"> </span><span class="identifier-syntax">sp</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">];</span>
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</pre>
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