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  68. <h4 class="subsection">6.62.3 M32C Pragmas</h4>
  69. <dl compact="compact">
  70. <dt><code>GCC memregs <var>number</var></code></dt>
  71. <dd><a name="index-pragma_002c-memregs"></a>
  72. <p>Overrides the command-line option <code>-memregs=</code> for the current
  73. file. Use with care! This pragma must be before any function in the
  74. file, and mixing different memregs values in different objects may
  75. make them incompatible. This pragma is useful when a
  76. performance-critical function uses a memreg for temporary values,
  77. as it may allow you to reduce the number of memregs used.
  78. </p>
  79. </dd>
  80. <dt><code>ADDRESS <var>name</var> <var>address</var></code></dt>
  81. <dd><a name="index-pragma_002c-address"></a>
  82. <p>For any declared symbols matching <var>name</var>, this does three things
  83. to that symbol: it forces the symbol to be located at the given
  84. address (a number), it forces the symbol to be volatile, and it
  85. changes the symbol&rsquo;s scope to be static. This pragma exists for
  86. compatibility with other compilers, but note that the common
  87. <code>1234H</code> numeric syntax is not supported (use <code>0x1234</code>
  88. instead). Example:
  89. </p>
  90. <div class="smallexample">
  91. <pre class="smallexample">#pragma ADDRESS port3 0x103
  92. char port3;
  93. </pre></div>
  94. </dd>
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