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| <h5 class="subsubsection">9.7.4.4 Assembler Directives</h5> |
| |
| <p><a name="index-assembler-directives_002c-CRIS-733"></a><a name="index-pseudo_002dops_002c-CRIS-734"></a><a name="index-CRIS-assembler-directives-735"></a><a name="index-CRIS-pseudo_002dops-736"></a> |
| There are a few CRIS-specific pseudo-directives in addition to |
| the generic ones. See <a href="Pseudo-Ops.html#Pseudo-Ops">Pseudo Ops</a>. Constants emitted by |
| pseudo-directives are in little-endian order for CRIS. There is |
| no support for floating-point-specific directives for CRIS. |
| |
| <dl> |
| <dt><code>.dword EXPRESSIONS</code><dd><a name="index-assembler-directive-_002edword_002c-CRIS-737"></a><a name="index-pseudo_002dop-_002edword_002c-CRIS-738"></a><a name="index-CRIS-assembler-directive-_002edword-739"></a><a name="index-CRIS-pseudo_002dop-_002edword-740"></a> |
| The <code>.dword</code> directive is a synonym for <code>.int</code>, |
| expecting zero or more EXPRESSIONS, separated by commas. For |
| each expression, a 32-bit little-endian constant is emitted. |
| |
| <br><dt><code>.syntax ARGUMENT</code><dd><a name="index-assembler-directive-_002esyntax_002c-CRIS-741"></a><a name="index-pseudo_002dop-_002esyntax_002c-CRIS-742"></a><a name="index-CRIS-assembler-directive-_002esyntax-743"></a><a name="index-CRIS-pseudo_002dop-_002esyntax-744"></a>The <code>.syntax</code> directive takes as <var>ARGUMENT</var> one of the |
| following case-sensitive choices. |
| |
| <dl> |
| <dt><code>no_register_prefix</code><dd> |
| The <code>.syntax no_register_prefix</code> <a name="crisnous"></a>directive |
| makes a ‘<samp><span class="samp">$</span></samp>’ character prefix on all registers optional. It |
| overrides a previous setting, including the corresponding effect |
| of the option <samp><span class="option">--no-underscore</span></samp>. If this directive is |
| used when ordinary symbols do not have a ‘<samp><span class="samp">_</span></samp>’ character |
| prefix, care must be taken to avoid ambiguities whether an |
| operand is a register or a symbol; using symbols with names the |
| same as general or special registers then invoke undefined |
| behavior. |
| |
| <br><dt><code>register_prefix</code><dd> |
| This directive makes a ‘<samp><span class="samp">$</span></samp>’ character prefix on all |
| registers mandatory. It overrides a previous setting, including |
| the corresponding effect of the option <samp><span class="option">--underscore</span></samp>. |
| |
| <br><dt><code>leading_underscore</code><dd> |
| This is an assertion directive, emitting an error if the |
| <samp><span class="option">--no-underscore</span></samp> option is in effect. |
| |
| <br><dt><code>no_leading_underscore</code><dd> |
| This is the opposite of the <code>.syntax leading_underscore</code> |
| directive and emits an error if the option <samp><span class="option">--underscore</span></samp> |
| is in effect. |
| </dl> |
| |
| <br><dt><code>.arch ARGUMENT</code><dd><a name="index-assembler-directive-_002earch_002c-CRIS-745"></a><a name="index-pseudo_002dop-_002earch_002c-CRIS-746"></a><a name="index-CRIS-assembler-directive-_002earch-747"></a><a name="index-CRIS-pseudo_002dop-_002earch-748"></a>This is an assertion directive, giving an error if the specified |
| <var>ARGUMENT</var> is not the same as the specified or default value |
| for the <samp><span class="option">--march=</span><var>architecture</var></samp> option |
| (see <a href="march_002doption.html#march_002doption">march-option</a>). |
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