104 lines
4.6 KiB
HTML
104 lines
4.6 KiB
HTML
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<title>Using the GNU Compiler Collection (GCC): M32R/D Variable Attributes</title>
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Next: <a href="MeP-Variable-Attributes.html#MeP-Variable-Attributes" accesskey="n" rel="next">MeP Variable Attributes</a>, Previous: <a href="IA_002d64-Variable-Attributes.html#IA_002d64-Variable-Attributes" accesskey="p" rel="prev">IA-64 Variable Attributes</a>, Up: <a href="Variable-Attributes.html#Variable-Attributes" accesskey="u" rel="up">Variable Attributes</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<a name="M32R_002fD-Variable-Attributes-1"></a>
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<h4 class="subsection">6.32.6 M32R/D Variable Attributes</h4>
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<p>One attribute is currently defined for the M32R/D.
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</p>
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<dl compact="compact">
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<dt><code>model (<var>model-name</var>)</code></dt>
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<dd><a name="index-model_002dname-variable-attribute_002c-M32R_002fD"></a>
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<a name="index-variable-addressability-on-the-M32R_002fD"></a>
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<p>Use this attribute on the M32R/D to set the addressability of an object.
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The identifier <var>model-name</var> is one of <code>small</code>, <code>medium</code>,
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or <code>large</code>, representing each of the code models.
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</p>
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<p>Small model objects live in the lower 16MB of memory (so that their
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addresses can be loaded with the <code>ld24</code> instruction).
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</p>
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<p>Medium and large model objects may live anywhere in the 32-bit address space
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(the compiler generates <code>seth/add3</code> instructions to load their
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addresses).
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</p></dd>
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</dl>
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