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authorBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-01-19 15:23:14 +0000
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-01-19 15:23:14 +0000
commitbce5bba7a01fb090f67fec5f79218c505c841af3 (patch)
treee7d7dfc12cae1f1474800071fbc4633fa509ef6e /libm/i386/fgetexcptflg.c
parentd22976dd5e16e8719abd5c542e17427eeece7ff6 (diff)
- add C99 floating point environment, rounding and exception handling functions
for i386. UCLIBC_HAS_FENV
Diffstat (limited to 'libm/i386/fgetexcptflg.c')
-rw-r--r--libm/i386/fgetexcptflg.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/libm/i386/fgetexcptflg.c b/libm/i386/fgetexcptflg.c
new file mode 100644
index 000000000..f99122610
--- /dev/null
+++ b/libm/i386/fgetexcptflg.c
@@ -0,0 +1,35 @@
+/* Store current representation for exceptions.
+ Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ 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>
+
+int
+fegetexceptflag (fexcept_t *flagp, int excepts)
+{
+ fexcept_t temp;
+
+ /* Get the current exceptions. */
+ __asm__ ("fnstsw %0" : "=m" (*&temp));
+
+ *flagp = temp & excepts & FE_ALL_EXCEPT;
+
+ /* Success. */
+ return 0;
+}