<html lang="en">
<head>
<title>Blackfin Built-in Functions - Using the GNU Compiler Collection (GCC)</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="Using the GNU Compiler Collection (GCC)">
<meta name="generator" content="makeinfo 4.13">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Target-Builtins.html#Target-Builtins" title="Target Builtins">
<link rel="prev" href="ARM-NEON-Intrinsics.html#ARM-NEON-Intrinsics" title="ARM NEON Intrinsics">
<link rel="next" href="FR_002dV-Built_002din-Functions.html#FR_002dV-Built_002din-Functions" title="FR-V Built-in Functions">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<!--
Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
2008 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 1.2 or
any later version published by the Free Software Foundation; with the
Invariant Sections being ``Funding Free Software'', the Front-Cover
Texts being (a) (see below), and with the Back-Cover Texts being (b)
(see below).  A copy of the license is included in the section entitled
``GNU Free Documentation License''.

(a) The FSF's Front-Cover Text is:

     A GNU Manual

(b) The FSF's Back-Cover Text is:

     You have freedom to copy and modify this GNU Manual, like GNU
     software.  Copies published by the Free Software Foundation raise
     funds for GNU development.-->
<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>
<link rel="stylesheet" type="text/css" href="../cs.css">
</head>
<body>
<div class="node">
<a name="Blackfin-Built-in-Functions"></a>
<a name="Blackfin-Built_002din-Functions"></a>
<p>
Next:&nbsp;<a rel="next" accesskey="n" href="FR_002dV-Built_002din-Functions.html#FR_002dV-Built_002din-Functions">FR-V Built-in Functions</a>,
Previous:&nbsp;<a rel="previous" accesskey="p" href="ARM-NEON-Intrinsics.html#ARM-NEON-Intrinsics">ARM NEON Intrinsics</a>,
Up:&nbsp;<a rel="up" accesskey="u" href="Target-Builtins.html#Target-Builtins">Target Builtins</a>
<hr>
</div>

<h4 class="subsection">6.52.4 Blackfin Built-in Functions</h4>

<p>Currently, there are two Blackfin-specific built-in functions.  These are
used for generating <code>CSYNC</code> and <code>SSYNC</code> machine insns without
using inline assembly; by using these built-in functions the compiler can
automatically add workarounds for hardware errata involving these
instructions.  These functions are named as follows:

<pre class="smallexample">     void __builtin_bfin_csync (void)
     void __builtin_bfin_ssync (void)
</pre>
 </body></html>