7 __asm__ ("fsqrt; fnstsw %%ax": "=t"(ux.f), "=a"(fpsr) : "0"(x));
8 if ((ux.i.m & 0x7ff) != 0x400)
10 /* Rounding to double would have encountered an exact halfway case.
11 Adjust mantissa downwards if fsqrt rounded up, else upwards.
12 (result of fsqrt could not have been exact) */
13 ux.i.m ^= (fpsr & 0x200) + 0x300;