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Diffstat (limited to 'libm/m68k/fsetexcptflg.c')
-rw-r--r--libm/m68k/fsetexcptflg.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/libm/m68k/fsetexcptflg.c b/libm/m68k/fsetexcptflg.c
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+/* Set floating-point environment exception handling.
+ Copyright (C) 1997-2025 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 <math.h>
+
+int
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+ fexcept_t fpsr;
+
+ /* Get the current status register. */
+ __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+ /* Install the new exception bits in the Accrued Exception Byte. */
+ fpsr &= ~(excepts & FE_ALL_EXCEPT);
+ fpsr |= *flagp & excepts & FE_ALL_EXCEPT;
+
+ /* Store the new status register. */
+ __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+
+ /* Success. */
+ return 0;
+}