diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/e_sqrtf.c')
-rw-r--r-- | sysdeps/x86_64/fpu/e_sqrtf.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/e_sqrtf.c b/sysdeps/x86_64/fpu/e_sqrtf.c new file mode 100644 index 0000000000..f7801f05d2 --- /dev/null +++ b/sysdeps/x86_64/fpu/e_sqrtf.c @@ -0,0 +1,30 @@ +/* Square root of floating point number. + Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <math_private.h> + +float +__ieee754_sqrtf (float x) +{ + float res; + + asm ("sqrtss %0, %1" : "=x" (res) : "x" (x)); + + return res; +} |