diff options
Diffstat (limited to 'sysdeps/i386/i686')
| -rw-r--r-- | sysdeps/i386/i686/fpu/e_logl.S | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/i386/i686/fpu/e_logl.S b/sysdeps/i386/i686/fpu/e_logl.S index 8a86222b13..a0d1107dc0 100644 --- a/sysdeps/i386/i686/fpu/e_logl.S +++ b/sysdeps/i386/i686/fpu/e_logl.S @@ -46,7 +46,13 @@ ENTRY(__ieee754_logl) fcomip %st(1) // |x-1| : x-1 : x : log(2) fstp %st(0) // x-1 : x : log(2) jc 2f - fstp %st(1) // x-1 : log(2) + fxam + fnstsw + andb $0x45, %ah + cmpb $0x40, %ah + jne 4f + fabs // log(1) is +0 in all rounding modes. +4: fstp %st(1) // x-1 : log(2) fyl2xp1 // log(x) ret |