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-rw-r--r--sysdeps/s390/fpu/fsetexcptflg.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/s390/fpu/fsetexcptflg.c b/sysdeps/s390/fpu/fsetexcptflg.c
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+/* Set floating-point environment exception handling.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
+
+ 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_libc.h>
+#include <math.h>
+#include <fpu_control.h>
+
+int
+fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+ fexcept_t temp,newexcepts;
+
+ /* Get the current environment. We have to do this since we cannot
+ separately set the status word. */
+ _FPU_GETCW (temp);
+ /* Install the new exception bits in the Accrued Exception Byte. */
+ excepts = excepts & FE_ALL_EXCEPT;
+ newexcepts = (excepts << FPC_DXC_SHIFT) | (excepts << FPC_FLAGS_SHIFT);
+ temp &= ~newexcepts;
+ temp |= *flagp & newexcepts;
+
+ /* Store the new status word (along with the rest of the environment.
+ Possibly new exceptions are set but they won't get executed unless
+ the next floating-point instruction. */
+ _FPU_SETCW (temp);
+
+ /* Success. */
+ return 0;
+}