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14<h1 align="left">OS_GetIrqCheckFlag <IMG src="../../image/NTR.gif" align="middle"><IMG src="../../image/TWL.gif" align="middle"></h1>
15<h2>Syntax</h2>
16
17<dl>
18  <dd>
19<CODE>#include &lt;nitro/os.h&gt;</CODE><BR> <BR> <CODE>volatile OSIrqMask OS_GetIrqCheckFlag( void );</CODE></dd>
20</dl><h2>Arguments</h2>
21<P>None.</P>
22<h2>Return Values</h2>
23<P>An IRQ interrupt check flag.</P>
24<H2>Description</H2>
25<P>Gets an IRQ check flag. These flags are normally set by the IRQ interrupt handler. For information on the types of flags, see <A href="OS_SetIrqCheckFlag.html"><code>OS_SetIrqCheckFlag</code></a>.
26</P>
27<h2>See Also</h2>
28<p><A href="OS_SetIrqCheckFlag.html"><CODE>OS_SetIrqCheckFlag</CODE></A><BR> <a href="OS_ClearIrqCheckFlag.html"><CODE>OS_ClearIrqCheckFlag</CODE></a></p>
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30<h2>Internal Operation</h2>
31<p>In the ARM9, the predetermined location <code>DTCM_END - 8</code> in DTCM is designated as the check flag region. This function operates on this region. In the ARM7, the predetermined location of the ARM7 WRAM (highest address: 8) is designated as the check flag region. The function operates on this region.</p>
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33<H2>Revision History</H2>
34<P>
352008/03/21 Added volatile as a return value type.<br> 2005/03/08 Standardized how the term &quot;interrupt&quot; is written in Japanese.<br> 2004/04/06 Initial version.</P>
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