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Diffstat (limited to 'sysdeps/ia64/fpu/fsetexcptflg.c')
-rw-r--r--sysdeps/ia64/fpu/fsetexcptflg.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/ia64/fpu/fsetexcptflg.c b/sysdeps/ia64/fpu/fsetexcptflg.c
new file mode 100644
index 0000000000..5e040416d4
--- /dev/null
+++ b/sysdeps/ia64/fpu/fsetexcptflg.c
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+/* Set floating-point environment exception handling.
+   Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999.
+
+   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>
+#include <math.h>
+
+int
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  fenv_t fpsr;
+
+  /* Get the current exception state.  */
+  __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
+
+  /* Get the reverse bits so we can enable the exceptions flagged
+     rather than disable them.  */
+  excepts ^= FE_ALL_EXCEPT;
+
+  /* Set all the bits that were called for.  */
+  fpsr = (fpsr & ~FE_ALL_EXCEPT) | (*flagp & excepts & FE_ALL_EXCEPT);
+
+  /* And store it back.  */
+  __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory");
+
+  /* Success.  */
+  return 0;
+}