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<h3 class="section">4.3 Assembler Internal Sections</h3>
<p><a name="index-internal-assembler-sections-200"></a><a name="index-sections-in-messages_002c-internal-201"></a>These sections are meant only for the internal use of <span class="command">as</span>. They
have no meaning at run-time. You do not really need to know about these
sections for most purposes; but they can be mentioned in <span class="command">as</span>
warning messages, so it might be helpful to have an idea of their
meanings to <span class="command">as</span>. These sections are used to permit the
value of every expression in your assembly language program to be a
section-relative address.
<a name="index-assembler-internal-logic-error-202"></a>
<dl><dt><b>ASSEMBLER-INTERNAL-LOGIC-ERROR!</b><dd>An internal assembler logic error has been found. This means there is a
bug in the assembler.
<p><a name="index-expr-_0028internal-section_0029-203"></a><br><dt><b>expr section</b><dd>The assembler stores complex expression internally as combinations of
symbols. When it needs to represent an expression as a symbol, it puts
it in the expr section.
<!-- FIXME item debug -->
<!-- FIXME item transfer[t] vector preload -->
<!-- FIXME item transfer[t] vector postload -->
<!-- FIXME item register -->
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