sdk/1.0/docs/man/mul24.xml

<?xml version="1.0" encoding="UTF-8"?>
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<refentry>
    <refentryinfo>
        <keywordset>
            <keyword>                            
                mul24
            </keyword>
        </keywordset>
    </refentryinfo>

    <refmeta>                                    
        <refentrytitle>mul24</refentrytitle>

        <refmiscinfo>
            <copyright>
                <year>2007-2009</year>
                <holder>The Khronos Group Inc. 
 Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are furnished to do so, subject to
the condition that this copyright notice and permission notice shall be included
in all copies or substantial portions of the Materials.</holder>
            </copyright>
        </refmiscinfo>
        <manvolnum>2</manvolnum>
    </refmeta>

<!-- ================================ SYNOPSIS -->
	

    <refnamediv id="mul24">             
        <refname>mul24</refname>

        <refpurpose>
Fast integer function to multiply 24-bit integer values.
        </refpurpose>
    </refnamediv>

	<refsynopsisdiv xmlns:xlink="http://www.w3.org/1999/xlink"><title></title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>
                    gentype
                    <function>                  
                        mul24
                    </function>
                </funcdef>
				<paramdef>gentype<parameter>x</parameter></paramdef>
				<paramdef>gentype<parameter>y</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>     
	</refsynopsisdiv>	
		
	
<!-- ================================ DESCRIPTION  -->
<!-- Use <function /> to refer ONLY to the function that this page describes. All other functions should use <citerefentry /><refentrytitle /> to make it a link. Use <varname /> for parameters. Use <constant /> for constants (or anything to be set in monospace, non-bold type.-->

    <refsect1 id="description"><title>Description</title>
        <para>
			<function>mul24</function> multiplies two 24-bit integer values <varname>x</varname> and <varname>y</varname>. <varname>x</varname> and <varname>y</varname>
are 32-bit integers but only the low 24-bits are used to perform the multiplication. <function>mul24</function> should only be used when values in <varname>x</varname> and <varname>y</varname> are in the range [-2<superscript>23</superscript>, 2<superscript>23</superscript>-1] if <varname>x</varname> and <varname>y</varname> are signed integers and in the range [0, 2<superscript>24</superscript>-1] if <varname>x</varname> and <varname>y</varname> are unsigned integers. If <varname>x</varname> and <varname>y</varname> are not in this range, the multiplication result is implementation-defined.
		</para>	
    </refsect1>

<!-- ================================ NOTES  -->

    <refsect1 id="notes"><title>Notes</title>
        <para>
			Fast integer functions can be used for optimizing performance of kernels. We use the generic type name <type>gentype</type> to indicate that the function can take <type>int</type>, <type>int2</type>, <type>int4</type>, <type>int8</type>, <type>int16</type>, <type>uint</type>, <type>uint2</type>, <type>uint4</type>, <type>uint8</type>, or <type>uint16</type> as the type for the arguments.
        </para>
    </refsect1>

<!-- ================================ EXAMPLE  -->
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    <refsect2 id="example1">
        <title>
            Example
        </title>

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                        </entry>
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<!-- ================================ SPECIFICATION  -->
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    <refsect1 id="specification"><title>Specification</title>
        <para>
            <imageobject>
                <imagedata fileref="pdficon_small1.gif" format="gif" />
            </imageobject>
                                                 
            <olink uri="integerFunctions">OpenCL Specification</olink>
        </para>
    </refsect1>


<!-- ================================ ALSO SEE  -->

    <refsect1 id="seealso"><title>Also see</title>
        <para>
            <citerefentry href="integerFunctions"><refentrytitle>Integer Functions</refentrytitle></citerefentry> 
        </para>
    </refsect1>



<!-- ============================== COPYRIGHT -->
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    <refsect3 id="Copyright"><title></title>
		<imageobject>
                <imagedata fileref="KhronosLogo.jpg" format="jpg" />
        </imageobject>
		<para />
    </refsect3>

</refentry>