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<a name="Syntax-1"></a>
<h2 class="chapter">3 Syntax</h2>

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<a name="index-syntax_002c-machine_002dindependent"></a>
<p>This chapter describes the machine-independent syntax allowed in a
source file.  <code>as</code> syntax is similar to what many other
assemblers use; it is inspired by the BSD 4.2
assembler, except that <code>as</code> does not assemble Vax bit-fields.
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