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-rw-r--r--libm/or1k/fclrexcpt.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/libm/or1k/fclrexcpt.c b/libm/or1k/fclrexcpt.c
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index 000000000..ecb327d72
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+++ b/libm/or1k/fclrexcpt.c
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+/* Clear given exceptions in current floating-point environment.
+ OpenRISC version.
+ Copyright (C) 2024-2025 Free Software Foundation, Inc.
+
+ 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+feclearexcept (int excepts)
+{
+ fpu_control_t cw;
+ fpu_control_t cw_new;
+
+ /* Mask out unsupported bits/exceptions. */
+ excepts &= FE_ALL_EXCEPT;
+
+ /* Read the complete control word. */
+ _FPU_GETCW (cw);
+
+ cw_new = cw & ~excepts;
+
+ /* Put the new data in effect. */
+ if (cw != cw_new)
+ _FPU_SETCW (cw_new);
+
+ /* Success. */
+ return 0;
+}