sysdeps/libm-i387/s_ceill.S

   1 /*
   2  * Written by J.T. Conklin <jtc@netbsd.org>.
   3  * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
   4  * Public domain.
   5  */
   6
   7 #include <machine/asm.h>
   8
   9 RCSID("$NetBSD: $")
  10
  11 ENTRY(__ceill)
  12         pushl   %ebp
  13         movl    %esp,%ebp
  14         subl    $8,%esp
  15
  16         fstcw   -4(%ebp)                /* store fpu control word */
  17         movw    -4(%ebp),%dx
  18         orw     $0x0800,%dx             /* round towards +oo */
  19         andw    $0xfbff,%dx
  20         movw    %dx,-8(%ebp)
  21         fldcw   -8(%ebp)                /* load modfied control word */
  22
  23         fldt    8(%ebp);                /* round */
  24         frndint
  25
  26         fldcw   -4(%ebp)                /* restore original control word */
  27
  28         leave
  29         ret
  30 weak_alias (__ceill, ceill)