sysdeps/hppa/fpu/fegetenv.c

   1 /* Store current floating-point environment.
   2    Copyright (C) 2000 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by David Huggins-Daines <dhd@debian.org>, 2000
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <fenv.h>
  22 #include <string.h>
  23
  24 int
  25 fegetenv (fenv_t *envp)
  26 {
  27   unsigned long long buf[4], *bufptr = buf;
  28
  29   __asm__ (
  30            "fstd,ma %%fr0,8(%1) \n\t"
  31            "fldd -8(%1),%%fr0   \n\t"
  32            : "=m" (buf), "+r" (bufptr) : : "%r0");
  33   memcpy(envp, buf, sizeof (*envp));
  34   return 0;
  35 }