/* Next: overflow. */
if (excepts & FE_OVERFLOW)
{
- /* We cannot raise the overflow exception without also setting the
- inexact flag. Restore it after the operation, unless it should
- be set anyway. */
long double d = LDBL_MAX;
- fexcept_t fpsr;
- __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
- __asm__ __volatile__ ("fmul%.x %0,%0" : "=f" (d) : "0" (d));
- if (!((excepts | fpsr) & FE_INEXACT))
- {
- __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
- fpsr &= ~FE_INEXACT;
- __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
- }
- else
- __asm__ ("fnop");
+ __asm__ __volatile__ ("fmul%.x %0,%0; fnop" : "=f" (d) : "0" (d));
}
/* Next: underflow. */
if (excepts & FE_UNDERFLOW)
{
- /* We cannot raise the underflow exception without also setting the
- inexact flag. Restore it after the operation, unless it should
- be set anyway. */
long double d = -LDBL_MAX;
- fexcept_t fpsr;
- __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
- __asm__ __volatile__ ("fetox%.x %0" : "=f" (d) : "0" (d));
- if (!((excepts | fpsr) & FE_INEXACT))
- {
- __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
- fpsr &= ~FE_INEXACT;
- __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
- }
- else
- __asm__ ("fnop");
+ __asm__ __volatile__ ("fetox%.x %0; fnop" : "=f" (d) : "0" (d));
}
/* Last: inexact. */