diff options
Diffstat (limited to 'sysdeps/i386/fpu/feenablxcpt.c')
-rw-r--r-- | sysdeps/i386/fpu/feenablxcpt.c | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/sysdeps/i386/fpu/feenablxcpt.c b/sysdeps/i386/fpu/feenablxcpt.c deleted file mode 100644 index f1c42d7c27..0000000000 --- a/sysdeps/i386/fpu/feenablxcpt.c +++ /dev/null @@ -1,54 +0,0 @@ -/* Enable floating-point exceptions. - Copyright (C) 1999-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Jaeger <aj@suse.de>, 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, see - <http://www.gnu.org/licenses/>. */ - -#include <fenv.h> -#include <unistd.h> -#include <ldsodefs.h> -#include <dl-procinfo.h> - -int -feenableexcept (int excepts) -{ - unsigned short int new_exc; - unsigned short int old_exc; - - /* Get the current control word. */ - __asm__ ("fstcw %0" : "=m" (*&new_exc)); - - excepts &= FE_ALL_EXCEPT; - old_exc = (~new_exc) & FE_ALL_EXCEPT; - - new_exc &= ~excepts; - __asm__ ("fldcw %0" : : "m" (*&new_exc)); - - /* If the CPU supports SSE we set the MXCSR as well. */ - if (HAS_CPU_FEATURE (SSE)) - { - unsigned int xnew_exc; - - /* Get the current control word. */ - __asm__ ("stmxcsr %0" : "=m" (*&xnew_exc)); - - xnew_exc &= ~(excepts << 7); - - __asm__ ("ldmxcsr %0" : : "m" (*&xnew_exc)); - } - - return old_exc; -} |