1 files changed, 40 insertions, 0 deletions
diff --git a/ports/sysdeps/hppa/fpu/feupdateenv.c b/ports/sysdeps/hppa/fpu/feupdateenv.c
new file mode 100644
index 0000000000..cd01f07d96
--- /dev/null
+++ b/ports/sysdeps/hppa/fpu/feupdateenv.c
@@ -0,0 +1,40 @@
+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 2000, 2011 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <string.h>
+
+int
+feupdateenv (const fenv_t *envp)
+{
+  union { unsigned long long l; unsigned int sw[2]; } s;
+  fenv_t temp;
+  /* Get the current exception status */
+  __asm__ ("fstd %%fr0,0(%1)	\n\t" 
+           "fldd 0(%1),%%fr0	\n\t" 
+	   : "=m" (s.l) : "r" (&s.l));
+  memcpy(&temp, envp, sizeof(fenv_t));
+  /* Currently raised exceptions not cleared */
+  temp.__status_word |= s.sw[0] & (FE_ALL_EXCEPT << 27);
+  /* Install new environment.  */
+  fesetenv (&temp);
+  /* Success.  */
+  return 0;
+}
+libm_hidden_def (feupdateenv)