Alpha fedisableexcept implementaton.

sysdeps/alpha/fpu/fedisblxcpt.c

@@ -0,0 +1,36 @@
+/* Disable floating-point exceptions.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 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 <fenv.h>
+
+int
+fedisableexcept (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;
+}