about summary refs log tree commit diff
path: root/sysdeps/powerpc/fpu/fesetround.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/powerpc/fpu/fesetround.c')
-rw-r--r--sysdeps/powerpc/fpu/fesetround.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/fesetround.c b/sysdeps/powerpc/fpu/fesetround.c
new file mode 100644
index 0000000000..875c89768a
--- /dev/null
+++ b/sysdeps/powerpc/fpu/fesetround.c
@@ -0,0 +1,41 @@
+/* Set current rounding direction.
+   Copyright (C) 1997 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 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>
+
+int
+fesetround (int round)
+{
+  fenv_union_t u;
+
+  if ((unsigned int) round > 3)
+    return 0;
+
+  /* Get the current state.  */
+  u.fenv = fegetenv_register ();
+
+  /* Set the relevant bits.  */
+  u.l[1] = (u.l[1] & ~3)  |  (round & 3);
+
+  /* Put the new state in effect.  */
+  fesetenv_register (u.fenv);
+
+  return 1;
+}