annotate gcc/config/rs6000/singlefp.h @ 0:a06113de4d67

first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
parents
children 04ced10e8804
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 /* Definitions for PowerPC single-precision floating point unit
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
2 such as Xilinx PowerPC 405/440 APU.
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
3
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
4 Copyright (C) 2008 Free Software Foundation, Inc.
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
5 Contributed by Michael Eager (eager@eagercon.com)
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
6
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
7 This file is part of GCC.
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
8
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
9 GCC is free software; you can redistribute it and/or modify it
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
10 under the terms of the GNU General Public License as published
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 by the Free Software Foundation; either version 3, or (at your
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
12 option) any later version.
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
13
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 GCC is distributed in the hope that it will be useful, but WITHOUT
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 License for more details.
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
18
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
19 You should have received a copy of the GNU General Public License
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
20 along with GCC; see the file COPYING3. If not see
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
21 <http://www.gnu.org/licenses/>. */
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
22
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
23
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
24 /* Undefine definitions from rs6000.h. */
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
25 #undef TARGET_SINGLE_FLOAT
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
26 #undef TARGET_DOUBLE_FLOAT
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
27 #undef TARGET_SINGLE_FPU
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
28 #undef TARGET_SIMPLE_FPU
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
29 #undef UNITS_PER_FP_WORD
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
30
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
31 /* FPU operations supported.
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
32 If TARGET_SINGLE_FPU set, processor supports single fp options. */
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
33 #define TARGET_SINGLE_FLOAT (rs6000_single_float)
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
34 #define TARGET_DOUBLE_FLOAT (rs6000_double_float)
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
35 #define TARGET_SINGLE_FPU 1
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
36 #define TARGET_SIMPLE_FPU (rs6000_simple_fpu)
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
37
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
38 /* FP word width depends on single/double fp support. */
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
39 #define UNITS_PER_FP_WORD ((TARGET_SOFT_FLOAT || TARGET_DOUBLE_FLOAT) ? 8 : 4)
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
40