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  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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  3. <!-- This file documents the GNU Assembler "as".
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  15. <title>Blackfin Directives (Using as)</title>
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  23. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
  24. <link href="Blackfin_002dDependent.html#Blackfin_002dDependent" rel="up" title="Blackfin-Dependent">
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  56. <a name="Blackfin-Directives"></a>
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  58. <p>
  59. Previous: <a href="Blackfin-Syntax.html#Blackfin-Syntax" accesskey="p" rel="prev">Blackfin Syntax</a>, Up: <a href="Blackfin_002dDependent.html#Blackfin_002dDependent" accesskey="u" rel="up">Blackfin-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>
  60. </div>
  61. <hr>
  62. <a name="Directives"></a>
  63. <h4 class="subsection">9.6.3 Directives</h4>
  64. <a name="index-Blackfin-directives"></a>
  65. <a name="index-directives_002c-Blackfin"></a>
  66. <p>The following directives are provided for compatibility with the VDSP assembler.
  67. </p>
  68. <dl compact="compact">
  69. <dt><code>.byte2</code></dt>
  70. <dd><p>Initializes a two byte data object.
  71. </p>
  72. <p>This maps to the <code>.short</code> directive.
  73. </p></dd>
  74. <dt><code>.byte4</code></dt>
  75. <dd><p>Initializes a four byte data object.
  76. </p>
  77. <p>This maps to the <code>.int</code> directive.
  78. </p></dd>
  79. <dt><code>.db</code></dt>
  80. <dd><p>Initializes a single byte data object.
  81. </p>
  82. <p>This directive is a synonym for <code>.byte</code>.
  83. </p></dd>
  84. <dt><code>.dw</code></dt>
  85. <dd><p>Initializes a two byte data object.
  86. </p>
  87. <p>This directive is a synonym for <code>.byte2</code>.
  88. </p></dd>
  89. <dt><code>.dd</code></dt>
  90. <dd><p>Initializes a four byte data object.
  91. </p>
  92. <p>This directive is a synonym for <code>.byte4</code>.
  93. </p></dd>
  94. <dt><code>.var</code></dt>
  95. <dd><p>Define and initialize a 32 bit data object.
  96. </p></dd>
  97. </dl>
  98. </body>
  99. </html>