1 files changed, 60 insertions, 0 deletions
diff --git a/libm/metag/fesetenv.c b/libm/metag/fesetenv.c
new file mode 100644
index 000000000..7295492b8
--- /dev/null
+++ b/libm/metag/fesetenv.c
@@ -0,0 +1,60 @@
+/* Install given floating-point environment.
+   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 <assert.h>
+
+#include "internal.h"
+
+libm_hidden_proto(fesetenv)
+
+int
+fesetenv (const fenv_t *envp)
+{
+  unsigned int exc;
+  unsigned int txmode;
+
+  __asm__ ("MOV %0,TXMODE" : "=r" (txmode));
+
+  /* Clear rounding mode bits (round to nearest).  */
+  txmode &= ~(0x3 << 16);
+
+  if (envp == FE_DFL_ENV)
+    {
+      exc = 0;
+    }
+  else if (envp == FE_NOMASK_ENV)
+    {
+      exc = 0x1f;
+    }
+  else
+    {
+      exc = envp->txdefr & (FE_ALL_EXCEPT | (FE_ALL_EXCEPT << 16));
+      /* Write rounding mode and guard bit.  */
+      txmode |= (0x1 << 18 ) | (envp->txmode & (0x3 << 16));
+    }
+
+  __asm__ ("MOV TXMODE,%0" : : "r" (txmode));
+
+  metag_set_fpu_flags(exc);
+
+  /* Success.  */
+  return 0;
+}
+libm_hidden_def(fesetenv)