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2byte.html 4.0KB

3 vuotta sitten
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  62. <a name="g_t_002e2byte-expression-_005b_002c-expression_005d_002a"></a>
  63. <h3 class="section">7.110 <code>.2byte <var>expression</var> [, <var>expression</var>]*</code></h3>
  64. <a name="index-2byte-directive"></a>
  65. <a name="index-two_002dbyte-integer"></a>
  66. <a name="index-integer_002c-2_002dbyte"></a>
  67. <p>This directive expects zero or more expressions, separated by commas. If there
  68. are no expressions then the directive does nothing. Otherwise each expression
  69. is evaluated in turn and placed in the next two bytes of the current output
  70. section, using the endian model of the target. If an expression will not fit
  71. in two bytes, a warning message is displayed and the least significant two
  72. bytes of the expression&rsquo;s value are used. If an expression cannot be evaluated
  73. at assembly time then relocations will be generated in order to compute the
  74. value at link time.
  75. </p>
  76. <p>This directive does not apply any alignment before or after inserting the
  77. values. As a result of this, if relocations are generated, they may be
  78. different from those used for inserting values with a guaranteed alignment.
  79. </p>
  80. <p>This directive is only available for ELF targets,
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