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<h4 class="subsection">6.58.15 Other MIPS Built-in Functions</h4>
<p>GCC provides other MIPS-specific built-in functions:
<dl>
<dt><code>void __builtin_mips_cache (int </code><var>op</var><code>, const volatile void *</code><var>addr</var><code>)</code><dd>Insert a ‘<samp><span class="samp">cache</span></samp>’ instruction with operands <var>op</var> and <var>addr</var>.
GCC defines the preprocessor macro <code>___GCC_HAVE_BUILTIN_MIPS_CACHE</code>
when this function is available.
<br><dt><code>unsigned int __builtin_mips_get_fcsr (void)</code><dt><code>void __builtin_mips_set_fcsr (unsigned int </code><var>value</var><code>)</code><dd>Get and set the contents of the floating-point control and status register
(FPU control register 31). These functions are only available in hard-float
code but can be called in both MIPS16 and non-MIPS16 contexts.
<p><code>__builtin_mips_set_fcsr</code> can be used to change any bit of the
register except the condition codes, which GCC assumes are preserved.
</dl>
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