1 files changed, 45 insertions, 0 deletions
diff --git a/libm/metag/feupdateenv.c b/libm/metag/feupdateenv.c
new file mode 100644
index 000000000..f2fc69f54
--- /dev/null
+++ b/libm/metag/feupdateenv.c
@@ -0,0 +1,45 @@
+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 2013 Imagination Technologies Ltd.
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <fenv.h>
+#include <unistd.h>
+
+libm_hidden_proto(fesetenv)
+libm_hidden_proto(feraiseexcept)
+
+int
+feupdateenv (const fenv_t *envp)
+{
+  unsigned int temp;
+
+  /* Save current exceptions.  */
+  __asm__ ("MOV %0,TXDEFR" : "=r" (temp));
+
+  temp >>= 16;
+  temp &= FE_ALL_EXCEPT;
+
+  /* Install new environment.  */
+  fesetenv (envp);
+
+  /* Raise the saved exception.  */
+  feraiseexcept ((int) temp);
+
+  /* Success.  */
+  return 0;
+}