| <html lang="en"> |
| <head> |
| <title>CRIS-Pseudos - Using as</title> |
| <meta http-equiv="Content-Type" content="text/html"> |
| <meta name="description" content="Using as"> |
| <meta name="generator" content="makeinfo 4.13"> |
| <link title="Top" rel="start" href="index.html#Top"> |
| <link rel="up" href="CRIS_002dSyntax.html#CRIS_002dSyntax" title="CRIS-Syntax"> |
| <link rel="prev" href="CRIS_002dRegs.html#CRIS_002dRegs" title="CRIS-Regs"> |
| <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> |
| <!-- |
| This file documents the GNU Assembler "as". |
| |
| Copyright (C) 1991-2019 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 |
| or any later version published by the Free Software Foundation; |
| with no Invariant Sections, with no Front-Cover Texts, and with no |
| Back-Cover Texts. A copy of the license is included in the |
| section entitled ``GNU Free Documentation License''. |
| |
| --> |
| <meta http-equiv="Content-Style-Type" content="text/css"> |
| <style type="text/css"><!-- |
| pre.display { font-family:inherit } |
| pre.format { font-family:inherit } |
| pre.smalldisplay { font-family:inherit; font-size:smaller } |
| pre.smallformat { font-family:inherit; font-size:smaller } |
| pre.smallexample { font-size:smaller } |
| pre.smalllisp { font-size:smaller } |
| span.sc { font-variant:small-caps } |
| span.roman { font-family:serif; font-weight:normal; } |
| span.sansserif { font-family:sans-serif; font-weight:normal; } |
| --></style> |
| </head> |
| <body> |
| <div class="node"> |
| <a name="CRIS-Pseudos"></a> |
| <a name="CRIS_002dPseudos"></a> |
| <p> |
| Previous: <a rel="previous" accesskey="p" href="CRIS_002dRegs.html#CRIS_002dRegs">CRIS-Regs</a>, |
| Up: <a rel="up" accesskey="u" href="CRIS_002dSyntax.html#CRIS_002dSyntax">CRIS-Syntax</a> |
| <hr> |
| </div> |
| |
| <h5 class="subsubsection">9.9.4.4 Assembler Directives</h5> |
| |
| <p><a name="index-assembler-directives_002c-CRIS-916"></a><a name="index-pseudo_002dops_002c-CRIS-917"></a><a name="index-CRIS-assembler-directives-918"></a><a name="index-CRIS-pseudo_002dops-919"></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-920"></a><a name="index-pseudo_002dop-_002edword_002c-CRIS-921"></a><a name="index-CRIS-assembler-directive-_002edword-922"></a><a name="index-CRIS-pseudo_002dop-_002edword-923"></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-924"></a><a name="index-pseudo_002dop-_002esyntax_002c-CRIS-925"></a><a name="index-CRIS-assembler-directive-_002esyntax-926"></a><a name="index-CRIS-pseudo_002dop-_002esyntax-927"></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-928"></a><a name="index-pseudo_002dop-_002earch_002c-CRIS-929"></a><a name="index-CRIS-assembler-directive-_002earch-930"></a><a name="index-CRIS-pseudo_002dop-_002earch-931"></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>). |
| |
| <!-- If you compare with md_pseudo_table, you see that we don't --> |
| <!-- document ".file" and ".loc" here. This is because we're just --> |
| <!-- wrapping the corresponding ELF function and emitting an error for --> |
| <!-- a.out. --> |
| </dl> |
| |
| <!-- Copyright (C) 2012-2019 Free Software Foundation, Inc. --> |
| <!-- This is part of the GAS manual. --> |
| <!-- For copying conditions, see the file as.texinfo. --> |
| <!-- man end --> |
| </body></html> |
| |
