gdb/
[deliverable/binutils-gdb.git] / gdb / dfp.h
1 /* Decimal floating point support for GDB.
2
3 Copyright 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20 /* Decimal floating point is one of the extension to IEEE 754, which is
21 described in http://grouper.ieee.org/groups/754/revision.html and
22 http://www2.hursley.ibm.com/decimal/. It completes binary floating
23 point by representing floating point more exactly. */
24
25 #ifndef DFP_H
26 #define DFP_H
27
28 /* When using decimal128, this is the maximum string length + 1
29 * (value comes from libdecnumber's DECIMAL128_String constant). */
30 #define MAX_DECIMAL_STRING 43
31
32 extern void decimal_to_string (const gdb_byte *, int, enum bfd_endian, char *);
33 extern int decimal_from_string (gdb_byte *, int, enum bfd_endian, const char *);
34 extern void decimal_from_integral (struct value *from, gdb_byte *to,
35 int len, enum bfd_endian byte_order);
36 extern void decimal_from_floating (struct value *from, gdb_byte *to,
37 int len, enum bfd_endian byte_order);
38 extern DOUBLEST decimal_to_doublest (const gdb_byte *from, int len,
39 enum bfd_endian byte_order);
40 extern void decimal_binop (enum exp_opcode,
41 const gdb_byte *, int, enum bfd_endian,
42 const gdb_byte *, int, enum bfd_endian,
43 gdb_byte *, int, enum bfd_endian);
44 extern int decimal_is_zero (const gdb_byte *, int, enum bfd_endian);
45 extern int decimal_compare (const gdb_byte *, int, enum bfd_endian,
46 const gdb_byte *, int, enum bfd_endian);
47 extern void decimal_convert (const gdb_byte *, int, enum bfd_endian,
48 gdb_byte *, int, enum bfd_endian);
49
50 #endif
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