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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2018-12-27 16:03:01 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2018-12-27 16:03:01 +0000
commit14970231a38310b9561052a67b617138eeaad300 (patch)
tree35c201a651afa5d5e4fff241280081b3f88b9c2c /sysdeps/alpha/fpu/fegetmode.c
parentf08c7420b5e8b017a1a47b880a62b15bdc588f4d (diff)
parent25ead03a3712d57df2208fe82f3d316eb8faeaf6 (diff)
Merge commit 'refs/top-bases/t/extern_inline' into t/extern_inline
Diffstat (limited to 'sysdeps/alpha/fpu/fegetmode.c')
-rw-r--r--sysdeps/alpha/fpu/fegetmode.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/alpha/fpu/fegetmode.c b/sysdeps/alpha/fpu/fegetmode.c
new file mode 100644
index 0000000000..7008154701
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+++ b/sysdeps/alpha/fpu/fegetmode.c
@@ -0,0 +1,33 @@
+/* Store current floating-point control modes. Alpha version.
+ Copyright (C) 2016-2018 Free Software Foundation, Inc.
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv_libc.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ unsigned long int fpcr;
+ unsigned long int swcr;
+
+ /* As in fegetenv. */
+ swcr = __ieee_get_fp_control ();
+ __asm__ __volatile__ ("mf_fpcr %0" : "=f" (fpcr));
+ *modep = ((fpcr & FPCR_ROUND_MASK) | (swcr & SWCR_ALL_MASK));
+
+ return 0;
+}