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| <title>Using as: Z8000 Directives</title> |
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| Next: <a href="Z8000-Opcodes.html#Z8000-Opcodes" accesskey="n" rel="next">Z8000 Opcodes</a>, Previous: <a href="Z8000-Syntax.html#Z8000-Syntax" accesskey="p" rel="prev">Z8000 Syntax</a>, Up: <a href="Z8000_002dDependent.html#Z8000_002dDependent" accesskey="u" rel="up">Z8000-Dependent</a> [<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> |
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| <a name="Assembler-Directives-for-the-Z8000"></a> |
| <h4 class="subsection">9.48.3 Assembler Directives for the Z8000</h4> |
| |
| <a name="index-Z8000-directives"></a> |
| <a name="index-directives_002c-Z8000"></a> |
| <p>The Z8000 port of as includes additional assembler directives, |
| for compatibility with other Z8000 assemblers. These do not begin with |
| ‘<samp>.</samp>’ (unlike the ordinary as directives). |
| </p> |
| <dl compact="compact"> |
| <dd><a name="index-segm"></a> |
| </dd> |
| <dt><code>segm</code></dt> |
| <dd><a name="index-_002ez8001"></a> |
| </dd> |
| <dt><code>.z8001</code></dt> |
| <dd><p>Generate code for the segmented Z8001. |
| </p> |
| <a name="index-unsegm"></a> |
| </dd> |
| <dt><code>unsegm</code></dt> |
| <dd><a name="index-_002ez8002"></a> |
| </dd> |
| <dt><code>.z8002</code></dt> |
| <dd><p>Generate code for the unsegmented Z8002. |
| </p> |
| <a name="index-name"></a> |
| </dd> |
| <dt><code>name</code></dt> |
| <dd><p>Synonym for <code>.file</code> |
| </p> |
| <a name="index-global"></a> |
| </dd> |
| <dt><code>global</code></dt> |
| <dd><p>Synonym for <code>.global</code> |
| </p> |
| <a name="index-wval"></a> |
| </dd> |
| <dt><code>wval</code></dt> |
| <dd><p>Synonym for <code>.word</code> |
| </p> |
| <a name="index-lval"></a> |
| </dd> |
| <dt><code>lval</code></dt> |
| <dd><p>Synonym for <code>.long</code> |
| </p> |
| <a name="index-bval"></a> |
| </dd> |
| <dt><code>bval</code></dt> |
| <dd><p>Synonym for <code>.byte</code> |
| </p> |
| <a name="index-sval"></a> |
| </dd> |
| <dt><code>sval</code></dt> |
| <dd><p>Assemble a string. <code>sval</code> expects one string literal, delimited by |
| single quotes. It assembles each byte of the string into consecutive |
| addresses. You can use the escape sequence ‘<samp>%<var>xx</var></samp>’ (where |
| <var>xx</var> represents a two-digit hexadecimal number) to represent the |
| character whose <small>ASCII</small> value is <var>xx</var>. Use this feature to |
| describe single quote and other characters that may not appear in string |
| literals as themselves. For example, the C statement ‘<samp>char *a = "he said \"it's 50% off\"";</samp>’<!-- /@w --> is represented in Z8000 assembly language |
| (shown with the assembler output in hex at the left) as |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">68652073 sval 'he said %22it%27s 50%25 off%22%00' |
| 61696420 |
| 22697427 |
| 73203530 |
| 25206F66 |
| 662200 |
| </pre></div> |
| |
| <a name="index-rsect"></a> |
| </dd> |
| <dt><code>rsect</code></dt> |
| <dd><p>synonym for <code>.section</code> |
| </p> |
| <a name="index-block"></a> |
| </dd> |
| <dt><code>block</code></dt> |
| <dd><p>synonym for <code>.space</code> |
| </p> |
| <a name="index-even"></a> |
| </dd> |
| <dt><code>even</code></dt> |
| <dd><p>special case of <code>.align</code>; aligns output to even byte boundary. |
| </p></dd> |
| </dl> |
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