--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/rs6000/singlefp.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,40 @@
+/* Definitions for PowerPC single-precision floating point unit
+   such as Xilinx PowerPC 405/440 APU.
+
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   Contributed by Michael Eager (eager@eagercon.com)
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC 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 General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+
+/* Undefine definitions from rs6000.h. */
+#undef TARGET_SINGLE_FLOAT
+#undef TARGET_DOUBLE_FLOAT
+#undef TARGET_SINGLE_FPU
+#undef TARGET_SIMPLE_FPU
+#undef UNITS_PER_FP_WORD
+
+/* FPU operations supported. 
+   If TARGET_SINGLE_FPU set, processor supports single fp options. */
+#define TARGET_SINGLE_FLOAT (rs6000_single_float)
+#define TARGET_DOUBLE_FLOAT (rs6000_double_float)
+#define TARGET_SINGLE_FPU   1
+#define TARGET_SIMPLE_FPU   (rs6000_simple_fpu)
+
+/* FP word width depends on single/double fp support. */
+#define UNITS_PER_FP_WORD ((TARGET_SOFT_FLOAT || TARGET_DOUBLE_FLOAT) ? 8 : 4)
+