| /* Set current rounding direction. |
| Copyright (C) 1999, 2000, 2005, 2007 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999. |
| |
| 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 <fenv.h> |
| |
| int |
| fesetround (int round) |
| { |
| fenv_t fpsr; |
| |
| if (round & ~3) |
| return 1; |
| |
| /* Get the current state. */ |
| __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); |
| |
| /* Set the relevant bits. */ |
| fpsr = (fpsr & ~(3UL << 10)) | ((fenv_t) round << 10); |
| |
| /* Put the new state in effect. */ |
| __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory"); |
| |
| return 0; |
| } |
| libm_hidden_def (fesetround) |
