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-rw-r--r--sysdeps/ia64/fpu/feholdexcpt.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/sysdeps/ia64/fpu/feholdexcpt.c b/sysdeps/ia64/fpu/feholdexcpt.c
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+++ b/sysdeps/ia64/fpu/feholdexcpt.c
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+/* Store current floating-point environment and clear exceptions.
+ Copyright (C) 1997-2014 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 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
+feholdexcept (fenv_t *envp)
+{
+ fenv_t fpsr;
+ /* Save the current state. */
+ __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
+ *envp = fpsr;
+
+ /* Set the trap disable bits. */
+ fpsr |= FE_ALL_EXCEPT;
+
+ /* And clear the exception bits. */
+ fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13);
+
+ __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr));
+
+ /* Success. */
+ return 0;
+}
+libm_hidden_def (feholdexcept)