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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/hppa/fpu/fesetround.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/hppa/fpu/fesetround.c')
-rw-r--r--sysdeps/hppa/fpu/fesetround.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/hppa/fpu/fesetround.c b/sysdeps/hppa/fpu/fesetround.c
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+++ b/sysdeps/hppa/fpu/fesetround.c
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+/* Set current rounding direction.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David Huggins-Daines <dhd@debian.org>, 2000
+
+ 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
+fesetround (int round)
+{
+ unsigned int sw[2];
+
+ if (round & ~FE_DOWNWARD)
+ /* ROUND is not a valid rounding mode. */
+ return 1;
+
+ /* Get the current status word. */
+ __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
+ sw[0] &= ~FE_DOWNWARD;
+ sw[0] |= round;
+ __asm__ ("fldd 0(%0),%%fr0" : : "r" (sw));
+
+ return 0;
+}