GCC provides other MIPS-specific built-in functions:
void __builtin_mips_cache (int op, const volatile void *addr)___GCC_HAVE_BUILTIN_MIPS_CACHE
when this function is available.
unsigned int __builtin_mips_get_fcsr (void)void __builtin_mips_set_fcsr (unsigned int value)__builtin_mips_set_fcsr can be used to change any bit of the
register except the condition codes, which GCC assumes are preserved.