Fill.html 4.2 KB

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  63. <a name="g_t_002efill-repeat-_002c-size-_002c-value"></a>
  64. <h3 class="section">7.33 <code>.fill <var>repeat</var> , <var>size</var> , <var>value</var></code></h3>
  65. <a name="index-fill-directive"></a>
  66. <a name="index-writing-patterns-in-memory"></a>
  67. <a name="index-patterns_002c-writing-in-memory"></a>
  68. <p><var>repeat</var>, <var>size</var> and <var>value</var> are absolute expressions.
  69. This emits <var>repeat</var> copies of <var>size</var> bytes. <var>Repeat</var>
  70. may be zero or more. <var>Size</var> may be zero or more, but if it is
  71. more than 8, then it is deemed to have the value 8, compatible with
  72. other people&rsquo;s assemblers. The contents of each <var>repeat</var> bytes
  73. is taken from an 8-byte number. The highest order 4 bytes are
  74. zero. The lowest order 4 bytes are <var>value</var> rendered in the
  75. byte-order of an integer on the computer <code>as</code> is assembling for.
  76. Each <var>size</var> bytes in a repetition is taken from the lowest order
  77. <var>size</var> bytes of this number. Again, this bizarre behavior is
  78. compatible with other people&rsquo;s assemblers.
  79. </p>
  80. <p><var>size</var> and <var>value</var> are optional.
  81. If the second comma and <var>value</var> are absent, <var>value</var> is
  82. assumed zero. If the first comma and following tokens are absent,
  83. <var>size</var> is assumed to be 1.
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