From cd290faab1b1ca66f22e42c67792170e6d6db69c Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 17 Aug 2000 18:45:58 +0000 Subject: [PATCH] Alpha feenableexcept implementation. --- sysdeps/alpha/fpu/feenablxcpt.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 sysdeps/alpha/fpu/feenablxcpt.c diff --git a/sysdeps/alpha/fpu/feenablxcpt.c b/sysdeps/alpha/fpu/feenablxcpt.c new file mode 100644 index 0000000..d2b0f2e --- /dev/null +++ b/sysdeps/alpha/fpu/feenablxcpt.c @@ -0,0 +1,36 @@ +/* Enable floating-point exceptions. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek , 2000. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include + +int +feenableexcept (int excepts) +{ + unsigned long int new_exc, old_exc; + + new_exc = __ieee_get_fp_control (); + + old_exc = (new_exc << 16) & FE_ALL_EXCEPT; + new_exc |= (excepts & FE_ALL_EXCEPT) >> 16; + + __ieee_set_fp_control (new_exc); + + return old_exc; +} -- 2.7.4