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-rw-r--r--libm/metag/fclrexcpt.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/libm/metag/fclrexcpt.c b/libm/metag/fclrexcpt.c
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+++ b/libm/metag/fclrexcpt.c
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+/* Clear given exceptions in current floating-point environment.
+ Copyright (C) 2013 Imagination Technologies Ltd.
+ This file is part of the GNU C Library.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <fenv.h>
+#include <unistd.h>
+
+#include "internal.h"
+
+int
+feclearexcept (int excepts)
+{
+ unsigned int temp;
+
+ /* Get the current exceptions. */
+ __asm__ ("MOV %0,TXDEFR" : "=r" (temp));
+
+ /* Mask out unsupported bits/exceptions. */
+ excepts &= FE_ALL_EXCEPT;
+
+ excepts <<= 16;
+
+ temp &= ~excepts;
+
+ metag_set_fpu_flags(temp);
+
+ /* Success. */
+ return 0;
+}