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- <h4 class="subsection">6.62.3 M32C Pragmas</h4>
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- <dt><code>GCC memregs <var>number</var></code></dt>
- <dd><a name="index-pragma_002c-memregs"></a>
- <p>Overrides the command-line option <code>-memregs=</code> for the current
- file. Use with care! This pragma must be before any function in the
- file, and mixing different memregs values in different objects may
- make them incompatible. This pragma is useful when a
- performance-critical function uses a memreg for temporary values,
- as it may allow you to reduce the number of memregs used.
- </p>
- </dd>
- <dt><code>ADDRESS <var>name</var> <var>address</var></code></dt>
- <dd><a name="index-pragma_002c-address"></a>
- <p>For any declared symbols matching <var>name</var>, this does three things
- to that symbol: it forces the symbol to be located at the given
- address (a number), it forces the symbol to be volatile, and it
- changes the symbol’s scope to be static. This pragma exists for
- compatibility with other compilers, but note that the common
- <code>1234H</code> numeric syntax is not supported (use <code>0x1234</code>
- instead). Example:
- </p>
- <div class="smallexample">
- <pre class="smallexample">#pragma ADDRESS port3 0x103
- char port3;
- </pre></div>
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