Linux/HPPA specific feupdateenv implementation.

1 files changed, 40 insertions, 0 deletions

diff --git a/sysdeps/hppa/fpu/feupdateenv.c b/sysdeps/hppa/fpu/feupdateenv.c
new file mode 100644
index 0000000000..7e2d715e25
--- /dev/null
+++ b/sysdeps/hppa/fpu/feupdateenv.c
@@ -0,0 +1,40 @@
+/* Install given floating-point environment and raise exceptions.
+   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 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.h>
+
+int
+feupdateenv (const fenv_t *envp)
+{
+  unsigned int sw[2];
+
+  /* Get the current exception status. */
+  __asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
+  sw[0] &= (FE_ALL_EXCEPT << 27);
+
+  /* Install new environment.  */
+  fesetenv (envp);
+
+  /* Raise the saved exception. */
+  feraiseexcept (sw[0] >> 27);
+
+  /* Success.  */
+  return 0;
+}