diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/feenablxcpt.c')
-rw-r--r-- | sysdeps/x86_64/fpu/feenablxcpt.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/sysdeps/x86_64/fpu/feenablxcpt.c b/sysdeps/x86_64/fpu/feenablxcpt.c deleted file mode 100644 index 0985d71a00..0000000000 --- a/sysdeps/x86_64/fpu/feenablxcpt.c +++ /dev/null @@ -1,46 +0,0 @@ -/* Enable floating-point exceptions. - Copyright (C) 2001-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Jaeger <aj@suse.de>, 2001. - - 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 -feenableexcept (int excepts) -{ - unsigned short int new_exc, old_exc; - unsigned int new; - - excepts &= FE_ALL_EXCEPT; - - /* Get the current control word of the x87 FPU. */ - __asm__ ("fstcw %0" : "=m" (*&new_exc)); - - old_exc = (~new_exc) & FE_ALL_EXCEPT; - - new_exc &= ~excepts; - __asm__ ("fldcw %0" : : "m" (*&new_exc)); - - /* And now the same for the SSE MXCSR register. */ - __asm__ ("stmxcsr %0" : "=m" (*&new)); - - /* The SSE exception masks are shifted by 7 bits. */ - new &= ~(excepts << 7); - __asm__ ("ldmxcsr %0" : : "m" (*&new)); - - return old_exc; -} |