/* Store current floating-point environment. Copyright (C) 1997,1999,2000,2001,2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. 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, see <http://www.gnu.org/licenses/>. */ #include <fenv.h> int fegetenv (fenv_t *envp) { __asm__ ("fnstenv %0" : "=m" (*envp)); /* And load it right back since the processor changes the mask. Intel thought this opcode to be used in interrupt handlers which would block all exceptions. */ __asm__ ("fldenv %0" : : "m" (*envp)); /* Success. */ return 0; }