Du kannst nicht mehr als 25 Themen auswählen Themen müssen entweder mit einem Buchstaben oder einer Ziffer beginnen. Sie können Bindestriche („-“) enthalten und bis zu 35 Zeichen lang sein.

M68K_002dDirectives.html 4.9KB

vor 3 Jahren
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125
  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  2. <html>
  3. <!-- This file documents the GNU Assembler "as".
  4. Copyright (C) 1991-2020 Free Software Foundation, Inc.
  5. Permission is granted to copy, distribute and/or modify this document
  6. under the terms of the GNU Free Documentation License, Version 1.3
  7. or any later version published by the Free Software Foundation;
  8. with no Invariant Sections, with no Front-Cover Texts, and with no
  9. Back-Cover Texts. A copy of the license is included in the
  10. section entitled "GNU Free Documentation License".
  11. -->
  12. <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
  13. <head>
  14. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  15. <title>M68K-Directives (Using as)</title>
  16. <meta name="description" content="M68K-Directives (Using as)">
  17. <meta name="keywords" content="M68K-Directives (Using as)">
  18. <meta name="resource-type" content="document">
  19. <meta name="distribution" content="global">
  20. <meta name="Generator" content="makeinfo">
  21. <link href="index.html#Top" rel="start" title="Top">
  22. <link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
  23. <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
  24. <link href="M68K_002dDependent.html#M68K_002dDependent" rel="up" title="M68K-Dependent">
  25. <link href="M68K_002dopcodes.html#M68K_002dopcodes" rel="next" title="M68K-opcodes">
  26. <link href="M68K_002dFloat.html#M68K_002dFloat" rel="prev" title="M68K-Float">
  27. <style type="text/css">
  28. <!--
  29. a.summary-letter {text-decoration: none}
  30. blockquote.indentedblock {margin-right: 0em}
  31. blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
  32. blockquote.smallquotation {font-size: smaller}
  33. div.display {margin-left: 3.2em}
  34. div.example {margin-left: 3.2em}
  35. div.lisp {margin-left: 3.2em}
  36. div.smalldisplay {margin-left: 3.2em}
  37. div.smallexample {margin-left: 3.2em}
  38. div.smalllisp {margin-left: 3.2em}
  39. kbd {font-style: oblique}
  40. pre.display {font-family: inherit}
  41. pre.format {font-family: inherit}
  42. pre.menu-comment {font-family: serif}
  43. pre.menu-preformatted {font-family: serif}
  44. pre.smalldisplay {font-family: inherit; font-size: smaller}
  45. pre.smallexample {font-size: smaller}
  46. pre.smallformat {font-family: inherit; font-size: smaller}
  47. pre.smalllisp {font-size: smaller}
  48. span.nolinebreak {white-space: nowrap}
  49. span.roman {font-family: initial; font-weight: normal}
  50. span.sansserif {font-family: sans-serif; font-weight: normal}
  51. ul.no-bullet {list-style: none}
  52. -->
  53. </style>
  54. </head>
  55. <body lang="en">
  56. <a name="M68K_002dDirectives"></a>
  57. <div class="header">
  58. <p>
  59. Next: <a href="M68K_002dopcodes.html#M68K_002dopcodes" accesskey="n" rel="next">M68K-opcodes</a>, Previous: <a href="M68K_002dFloat.html#M68K_002dFloat" accesskey="p" rel="prev">M68K-Float</a>, Up: <a href="M68K_002dDependent.html#M68K_002dDependent" accesskey="u" rel="up">M68K-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="g_t680x0-Machine-Directives"></a>
  63. <h4 class="subsection">9.22.5 680x0 Machine Directives</h4>
  64. <a name="index-M680x0-directives"></a>
  65. <a name="index-directives_002c-M680x0"></a>
  66. <p>In order to be compatible with the Sun assembler the 680x0 assembler
  67. understands the following directives.
  68. </p>
  69. <dl compact="compact">
  70. <dd><a name="index-data1-directive_002c-M680x0"></a>
  71. </dd>
  72. <dt><code>.data1</code></dt>
  73. <dd><p>This directive is identical to a <code>.data 1</code> directive.
  74. </p>
  75. <a name="index-data2-directive_002c-M680x0"></a>
  76. </dd>
  77. <dt><code>.data2</code></dt>
  78. <dd><p>This directive is identical to a <code>.data 2</code> directive.
  79. </p>
  80. <a name="index-even-directive_002c-M680x0"></a>
  81. </dd>
  82. <dt><code>.even</code></dt>
  83. <dd><p>This directive is a special case of the <code>.align</code> directive; it
  84. aligns the output to an even byte boundary.
  85. </p>
  86. <a name="index-skip-directive_002c-M680x0"></a>
  87. </dd>
  88. <dt><code>.skip</code></dt>
  89. <dd><p>This directive is identical to a <code>.space</code> directive.
  90. </p>
  91. <a name="index-arch-directive_002c-M680x0"></a>
  92. </dd>
  93. <dt><code>.arch <var>name</var></code></dt>
  94. <dd><p>Select the target architecture and extension features. Valid values
  95. for <var>name</var> are the same as for the <samp>-march</samp> command-line
  96. option. This directive cannot be specified after
  97. any instructions have been assembled. If it is given multiple times,
  98. or in conjunction with the <samp>-march</samp> option, all uses must be for
  99. the same architecture and extension set.
  100. </p>
  101. <a name="index-cpu-directive_002c-M680x0"></a>
  102. </dd>
  103. <dt><code>.cpu <var>name</var></code></dt>
  104. <dd><p>Select the target cpu. Valid values
  105. for <var>name</var> are the same as for the <samp>-mcpu</samp> command-line
  106. option. This directive cannot be specified after
  107. any instructions have been assembled. If it is given multiple times,
  108. or in conjunction with the <samp>-mopt</samp> option, all uses must be for
  109. the same cpu.
  110. </p>
  111. </dd>
  112. </dl>
  113. </body>
  114. </html>