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<title>Using as: As Sections</title>
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<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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Next: <a href="Sub_002dSections.html#Sub_002dSections" accesskey="n" rel="next">Sub-Sections</a>, Previous: <a href="Ld-Sections.html#Ld-Sections" accesskey="p" rel="prev">Ld Sections</a>, Up: <a href="Sections.html#Sections" accesskey="u" rel="up">Sections</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
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<a name="Assembler-Internal-Sections"></a>
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<h3 class="section">4.3 Assembler Internal Sections</h3>
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<a name="index-internal-assembler-sections"></a>
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<a name="index-sections-in-messages_002c-internal"></a>
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<p>These sections are meant only for the internal use of <code>as</code>. They
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have no meaning at run-time. You do not really need to know about these
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sections for most purposes; but they can be mentioned in <code>as</code>
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warning messages, so it might be helpful to have an idea of their
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meanings to <code>as</code>. These sections are used to permit the
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value of every expression in your assembly language program to be a
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section-relative address.
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</p>
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<dl compact="compact">
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<dd><a name="index-assembler-internal-logic-error"></a>
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</dd>
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<dt><b>ASSEMBLER-INTERNAL-LOGIC-ERROR!</b></dt>
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<dd><p>An internal assembler logic error has been found. This means there is a
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bug in the assembler.
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</p>
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<a name="index-expr-_0028internal-section_0029"></a>
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</dd>
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<dt><b>expr section</b></dt>
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<dd><p>The assembler stores complex expression internally as combinations of
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symbols. When it needs to represent an expression as a symbol, it puts
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it in the expr section.
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</p></dd>
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</dl>
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