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- <h4 class="subsection">6.34.5 H8/300 Variable Attributes</h4>
-
- <p>These variable attributes are available for H8/300 targets:
- </p>
- <dl compact="compact">
- <dt><code>eightbit_data</code></dt>
- <dd><a name="index-eightbit_005fdata-variable-attribute_002c-H8_002f300"></a>
- <a name="index-eight_002dbit-data-on-the-H8_002f300_002c-H8_002f300H_002c-and-H8S"></a>
- <p>Use this attribute on the H8/300, H8/300H, and H8S to indicate that the specified
- variable should be placed into the eight-bit data section.
- The compiler generates more efficient code for certain operations
- on data in the eight-bit data area. Note the eight-bit data area is limited to
- 256 bytes of data.
- </p>
- <p>You must use GAS and GLD from GNU binutils version 2.7 or later for
- this attribute to work correctly.
- </p>
- </dd>
- <dt><code>tiny_data</code></dt>
- <dd><a name="index-tiny_005fdata-variable-attribute_002c-H8_002f300"></a>
- <a name="index-tiny-data-section-on-the-H8_002f300H-and-H8S"></a>
- <p>Use this attribute on the H8/300H and H8S to indicate that the specified
- variable should be placed into the tiny data section.
- The compiler generates more efficient code for loads and stores
- on data in the tiny data section. Note the tiny data area is limited to
- slightly under 32KB of data.
- </p>
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