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  25. <title>Alpha Built-in Functions (Using the GNU Compiler Collection (GCC))</title>

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  35. <link href="Target-Builtins.html#Target-Builtins" rel="up" title="Target Builtins">

  36. <link href="Altera-Nios-II-Built_002din-Functions.html#Altera-Nios-II-Built_002din-Functions" rel="next" title="Altera Nios II Built-in Functions">

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  70. <a name="Alpha-Built_002din-Functions"></a>

  71. <div class="header">

  72. <p>

  73. Next: <a href="Altera-Nios-II-Built_002din-Functions.html#Altera-Nios-II-Built_002din-Functions" accesskey="n" rel="next">Altera Nios II Built-in Functions</a>, Previous: <a href="AArch64-Built_002din-Functions.html#AArch64-Built_002din-Functions" accesskey="p" rel="prev">AArch64 Built-in Functions</a>, Up: <a href="Target-Builtins.html#Target-Builtins" accesskey="u" rel="up">Target Builtins</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>

  74. </div>

  75. <hr>

  76. <a name="Alpha-Built_002din-Functions-1"></a>

  77. <h4 class="subsection">6.60.2 Alpha Built-in Functions</h4>

  78. 

  79. <p>These built-in functions are available for the Alpha family of

  80. processors, depending on the command-line switches used.

  81. </p>

  82. <p>The following built-in functions are always available.  They

  83. all generate the machine instruction that is part of the name.

  84. </p>

  85. <div class="smallexample">

  86. <pre class="smallexample">long __builtin_alpha_implver (void)

  87. long __builtin_alpha_rpcc (void)

  88. long __builtin_alpha_amask (long)

  89. long __builtin_alpha_cmpbge (long, long)

  90. long __builtin_alpha_extbl (long, long)

  91. long __builtin_alpha_extwl (long, long)

  92. long __builtin_alpha_extll (long, long)

  93. long __builtin_alpha_extql (long, long)

  94. long __builtin_alpha_extwh (long, long)

  95. long __builtin_alpha_extlh (long, long)

  96. long __builtin_alpha_extqh (long, long)

  97. long __builtin_alpha_insbl (long, long)

  98. long __builtin_alpha_inswl (long, long)

  99. long __builtin_alpha_insll (long, long)

  100. long __builtin_alpha_insql (long, long)

  101. long __builtin_alpha_inswh (long, long)

  102. long __builtin_alpha_inslh (long, long)

  103. long __builtin_alpha_insqh (long, long)

  104. long __builtin_alpha_mskbl (long, long)

  105. long __builtin_alpha_mskwl (long, long)

  106. long __builtin_alpha_mskll (long, long)

  107. long __builtin_alpha_mskql (long, long)

  108. long __builtin_alpha_mskwh (long, long)

  109. long __builtin_alpha_msklh (long, long)

  110. long __builtin_alpha_mskqh (long, long)

  111. long __builtin_alpha_umulh (long, long)

  112. long __builtin_alpha_zap (long, long)

  113. long __builtin_alpha_zapnot (long, long)

  114. </pre></div>

  115. 

  116. <p>The following built-in functions are always with <samp>-mmax</samp>

  117. or <samp>-mcpu=<var>cpu</var></samp> where <var>cpu</var> is <code>pca56</code> or

  118. later.  They all generate the machine instruction that is part

  119. of the name.

  120. </p>

  121. <div class="smallexample">

  122. <pre class="smallexample">long __builtin_alpha_pklb (long)

  123. long __builtin_alpha_pkwb (long)

  124. long __builtin_alpha_unpkbl (long)

  125. long __builtin_alpha_unpkbw (long)

  126. long __builtin_alpha_minub8 (long, long)

  127. long __builtin_alpha_minsb8 (long, long)

  128. long __builtin_alpha_minuw4 (long, long)

  129. long __builtin_alpha_minsw4 (long, long)

  130. long __builtin_alpha_maxub8 (long, long)

  131. long __builtin_alpha_maxsb8 (long, long)

  132. long __builtin_alpha_maxuw4 (long, long)

  133. long __builtin_alpha_maxsw4 (long, long)

  134. long __builtin_alpha_perr (long, long)

  135. </pre></div>

  136. 

  137. <p>The following built-in functions are always with <samp>-mcix</samp>

  138. or <samp>-mcpu=<var>cpu</var></samp> where <var>cpu</var> is <code>ev67</code> or

  139. later.  They all generate the machine instruction that is part

  140. of the name.

  141. </p>

  142. <div class="smallexample">

  143. <pre class="smallexample">long __builtin_alpha_cttz (long)

  144. long __builtin_alpha_ctlz (long)

  145. long __builtin_alpha_ctpop (long)

  146. </pre></div>

  147. 

  148. <p>The following built-in functions are available on systems that use the OSF/1

  149. PALcode.  Normally they invoke the <code>rduniq</code> and <code>wruniq</code>

  150. PAL calls, but when invoked with <samp>-mtls-kernel</samp>, they invoke

  151. <code>rdval</code> and <code>wrval</code>.

  152. </p>

  153. <div class="smallexample">

  154. <pre class="smallexample">void *__builtin_thread_pointer (void)

  155. void __builtin_set_thread_pointer (void *)

  156. </pre></div>

  157. 

  158. <hr>

  159. <div class="header">

  160. <p>

  161. Next: <a href="Altera-Nios-II-Built_002din-Functions.html#Altera-Nios-II-Built_002din-Functions" accesskey="n" rel="next">Altera Nios II Built-in Functions</a>, Previous: <a href="AArch64-Built_002din-Functions.html#AArch64-Built_002din-Functions" accesskey="p" rel="prev">AArch64 Built-in Functions</a>, Up: <a href="Target-Builtins.html#Target-Builtins" accesskey="u" rel="up">Target Builtins</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>

  162. </div>

  163. 

  164. 

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