AArch64 Built-in Functions (Using the GNU Compiler Collection (GCC))

#### 7.13.1 AArch64 Built-in Functions ¶

These built-in functions are available for the AArch64 family of processors.

    unsigned int __builtin_aarch64_get_fpcr ();
    void __builtin_aarch64_set_fpcr (unsigned int);
    unsigned int __builtin_aarch64_get_fpsr ();
    void __builtin_aarch64_set_fpsr (unsigned int);

    unsigned long long __builtin_aarch64_get_fpcr64 ();
    void __builtin_aarch64_set_fpcr64 (unsigned long long);
    unsigned long long __builtin_aarch64_get_fpsr64 ();
    void __builtin_aarch64_set_fpsr64 (unsigned long long);