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14<h1 align="left">CP_SaveContext <img src="../image/NTR.gif"align="middle"><img src="../image/TWL.gif" align="middle"></H1>
15<H2>Syntax</H2>
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17<dl>
18  <dd>
19  <CODE>#include &lt;nitro/cp.h&gt;</CODE><BR>
20  </dd>
21  <dd><CODE>void CP_SaveContext( CPContext* context );</CODE></dd>
22</dl>
23
24<h2>Arguments</h2>
25<p>Pointer to the region where the divider, square root calculator context will be stored.</p>
26
27<h2>Return Values</h2>
28<p>None.</p>
29
30<H2>Description</H2>
31<P>This function stores the status (context) for the current divider and square root calculator in a specified structure.</P>
32<P>
33The <CODE><A href="CP_RestoreContext.html">CP_RestoreContext</A></CODE> function can be used to restore the saved context.<BR>When you use a divider or square root calculator inside an interrupt, save the divider and square root calculator contexts prior to their use by these functions.</P>
34<P>
35During thread switch, the context are also automatically switched. Therefore, there is no need for this function to explicitly run a save process.</P>
36
37<BLOCKQUOTE style="background-color : #eeeeee;">
38<B>Example</B> Using a divider/square root calculator inside an interrupt<BR>
39<P><CODE>void intr_func( void ) <BR> {<BR> CPContext context;<BR> <BR> CP_SaveContext( &amp;context );<BR> CP_SetDiv32_32( 1000, 5 );<BR> CP_WaitDiv();<BR> result = CP_GetDivResult();<BR> CP_RestoreContext( &amp;context );<BR> }</CODE></P>
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42
43<h2>See Also</h2>
44<p><CODE><A href="CP_RestoreContext.html">CP_RestoreContext</A>, <A href="div/CP_SetDiv.html">CP_SetDiv*</A>, <A href="sqrt/CP_SetSqrt.html">CP_SetSqrt*</A></CODE></p>
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46<H2>Revision History</H2>
47<P>2006/08/09 Added sample code segment.<br> 2004/05/06 Initial version.</P>
48<hr><p>CONFIDENTIAL</p></body>
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