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<title>Using as: RX-Directives</title>
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Next: <a href="RX_002dFloat.html#RX_002dFloat" accesskey="n" rel="next">RX-Float</a>, Previous: <a href="RX_002dModifiers.html#RX_002dModifiers" accesskey="p" rel="prev">RX-Modifiers</a>, Up: <a href="RX_002dDependent.html#RX_002dDependent" accesskey="u" rel="up">RX-Dependent</a> &nbsp; [<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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<a name="Assembler-Directives-6"></a>
<h4 class="subsection">9.36.3 Assembler Directives</h4>
<a name="index-assembler-directives_002c-RX"></a>
<a name="index-RX-assembler-directives"></a>
<p>The RX version of <code>as</code> has the following specific
assembler directives:
</p>
<dl compact="compact">
<dt><code>.3byte</code></dt>
<dd><a name="index-assembler-directive-_002e3byte_002c-RX"></a>
<a name="index-RX-assembler-directive-_002e3byte"></a>
<p>Inserts a 3-byte value into the output file at the current location.
</p>
</dd>
<dt><code>.fetchalign</code></dt>
<dd><a name="index-assembler-directive-_002efetchalign_002c-RX"></a>
<a name="index-RX-assembler-directive-_002efetchalign"></a>
<p>If the next opcode following this directive spans a fetch line
boundary (8 byte boundary), the opcode is aligned to that boundary.
If the next opcode does not span a fetch line, this directive has no
effect. Note that one or more labels may be between this directive
and the opcode; those labels are aligned as well. Any inserted bytes
due to alignment will form a NOP opcode.
</p>
</dd>
</dl>
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