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- #include <fenv.h>
- #include <unistd.h>
- int
- fedisableexcept (int excepts)
- {
- unsigned short int new_exc, old_exc;
-
- __asm__ ("fstcw %0" : "=m" (*&new_exc));
- old_exc = (~new_exc) & FE_ALL_EXCEPT;
- excepts &= FE_ALL_EXCEPT;
- new_exc |= excepts;
- __asm__ ("fldcw %0" : : "m" (*&new_exc));
- #if 0
-
- if ((GLRO(dl_hwcap) & HWCAP_I386_XMM) != 0)
- {
- unsigned int xnew_exc;
-
- __asm__ ("stmxcsr %0" : "=m" (*&xnew_exc));
- xnew_exc |= excepts << 7;
- __asm__ ("ldmxcsr %0" : : "m" (*&xnew_exc));
- }
- #endif
- return old_exc;
- }
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