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diff --git a/devdocs/gcc~13/altera-nios-ii-built-in-functions.html b/devdocs/gcc~13/altera-nios-ii-built-in-functions.html new file mode 100644 index 00000000..8c8d0095 --- /dev/null +++ b/devdocs/gcc~13/altera-nios-ii-built-in-functions.html @@ -0,0 +1,84 @@ +<div class="subsection-level-extent" id="Altera-Nios-II-Built-in-Functions"> <div class="nav-panel"> <p> Next: <a href="arc-built-in-functions" accesskey="n" rel="next">ARC Built-in Functions</a>, Previous: <a href="alpha-built-in-functions" accesskey="p" rel="prev">Alpha Built-in Functions</a>, Up: <a href="target-builtins" accesskey="u" rel="up">Built-in Functions Specific to Particular Target Machines</a> [<a href="index#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="indices" title="Index" rel="index">Index</a>]</p> </div> <h1 class="subsection" id="Altera-Nios-II-Built-in-Functions-1"><span>6.60.3 Altera Nios II Built-in Functions<a class="copiable-link" href="#Altera-Nios-II-Built-in-Functions-1"> ΒΆ</a></span></h1> <p>These built-in functions are available for the Altera Nios II family of processors. </p> <p>The following built-in functions are always available. They all generate the machine instruction that is part of the name. </p> <div class="example"> <pre class="example-preformatted" data-language="cpp">int __builtin_ldbio (volatile const void *); +int __builtin_ldbuio (volatile const void *); +int __builtin_ldhio (volatile const void *); +int __builtin_ldhuio (volatile const void *); +int __builtin_ldwio (volatile const void *); +void __builtin_stbio (volatile void *, int); +void __builtin_sthio (volatile void *, int); +void __builtin_stwio (volatile void *, int); +void __builtin_sync (void); +int __builtin_rdctl (int); +int __builtin_rdprs (int, int); +void __builtin_wrctl (int, int); +void __builtin_flushd (volatile void *); +void __builtin_flushda (volatile void *); +int __builtin_wrpie (int); +void __builtin_eni (int); +int __builtin_ldex (volatile const void *); +int __builtin_stex (volatile void *, int); +int __builtin_ldsex (volatile const void *); +int __builtin_stsex (volatile void *, int);</pre> +</div> <p>The following built-in functions are always available. They all generate a Nios II Custom Instruction. The name of the function represents the types that the function takes and returns. The letter before the <code class="code">n</code> is the return type or void if absent. The <code class="code">n</code> represents the first parameter to all the custom instructions, the custom instruction number. The two letters after the <code class="code">n</code> represent the up to two parameters to the function. </p> <p>The letters represent the following data types: </p> +<dl class="table"> <dt><code class="code"><no letter></code></dt> <dd> +<p><code class="code">void</code> for return type and no parameter for parameter types. </p> </dd> <dt><code class="code">i</code></dt> <dd> +<p><code class="code">int</code> for return type and parameter type </p> </dd> <dt><code class="code">f</code></dt> <dd> +<p><code class="code">float</code> for return type and parameter type </p> </dd> <dt><code class="code">p</code></dt> <dd> +<p><code class="code">void *</code> for return type and parameter type </p> </dd> </dl> <p>And the function names are: </p> +<div class="example"> <pre class="example-preformatted" data-language="cpp">void __builtin_custom_n (void); +void __builtin_custom_ni (int); +void __builtin_custom_nf (float); +void __builtin_custom_np (void *); +void __builtin_custom_nii (int, int); +void __builtin_custom_nif (int, float); +void __builtin_custom_nip (int, void *); +void __builtin_custom_nfi (float, int); +void __builtin_custom_nff (float, float); +void __builtin_custom_nfp (float, void *); +void __builtin_custom_npi (void *, int); +void __builtin_custom_npf (void *, float); +void __builtin_custom_npp (void *, void *); +int __builtin_custom_in (void); +int __builtin_custom_ini (int); +int __builtin_custom_inf (float); +int __builtin_custom_inp (void *); +int __builtin_custom_inii (int, int); +int __builtin_custom_inif (int, float); +int __builtin_custom_inip (int, void *); +int __builtin_custom_infi (float, int); +int __builtin_custom_inff (float, float); +int __builtin_custom_infp (float, void *); +int __builtin_custom_inpi (void *, int); +int __builtin_custom_inpf (void *, float); +int __builtin_custom_inpp (void *, void *); +float __builtin_custom_fn (void); +float __builtin_custom_fni (int); +float __builtin_custom_fnf (float); +float __builtin_custom_fnp (void *); +float __builtin_custom_fnii (int, int); +float __builtin_custom_fnif (int, float); +float __builtin_custom_fnip (int, void *); +float __builtin_custom_fnfi (float, int); +float __builtin_custom_fnff (float, float); +float __builtin_custom_fnfp (float, void *); +float __builtin_custom_fnpi (void *, int); +float __builtin_custom_fnpf (void *, float); +float __builtin_custom_fnpp (void *, void *); +void * __builtin_custom_pn (void); +void * __builtin_custom_pni (int); +void * __builtin_custom_pnf (float); +void * __builtin_custom_pnp (void *); +void * __builtin_custom_pnii (int, int); +void * __builtin_custom_pnif (int, float); +void * __builtin_custom_pnip (int, void *); +void * __builtin_custom_pnfi (float, int); +void * __builtin_custom_pnff (float, float); +void * __builtin_custom_pnfp (float, void *); +void * __builtin_custom_pnpi (void *, int); +void * __builtin_custom_pnpf (void *, float); +void * __builtin_custom_pnpp (void *, void *);</pre> +</div> </div> <div class="nav-panel"> <p> Next: <a href="arc-built-in-functions">ARC Built-in Functions</a>, Previous: <a href="alpha-built-in-functions">Alpha Built-in Functions</a>, Up: <a href="target-builtins">Built-in Functions Specific to Particular Target Machines</a> [<a href="index#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="indices" title="Index" rel="index">Index</a>]</p> </div><div class="_attribution"> + <p class="_attribution-p"> + © Free Software Foundation<br>Licensed under the GNU Free Documentation License, Version 1.3.<br> + <a href="https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/Altera-Nios-II-Built-in-Functions.html" class="_attribution-link">https://gcc.gnu.org/onlinedocs/gcc-13.1.0/gcc/Altera-Nios-II-Built-in-Functions.html</a> + </p> +</div> |