1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/alpha/fpu/fegetenv.c b/sysdeps/alpha/fpu/fegetenv.c
new file mode 100644
index 0000000000..c8b705d230
--- /dev/null
+++ b/sysdeps/alpha/fpu/fegetenv.c
@@ -0,0 +1,37 @@
+/* Store current floating-point environment.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson <rth@tamu.edu>, 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.h>
+
+void
+fegetenv (fenv_t *envp)
+{
+  unsigned long fpcr, swcr;
+
+  /* Get status from software and hardware.  Note that we don't need an
+     excb because the callsys is an implied trap barrier.  */
+  swcr = __ieee_get_fp_control();
+  __asm__ __volatile__("mf_fpcr %0" : "=f"(fpcr));
+
+  /* Merge the two bits of information.  The magic number at the end is
+     the exception enable mask.  */
+
+  *envp = (fpcr & (3UL << 58)) | (swcr & (FE_ALL_EXCEPT | 0x3e));
+}