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/* Decimal floating point support for GDB.

   Copyright 2007, 2008, 2009, 2010 Free Software Foundation, Inc.

   This file is part of GDB.

   This program 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 of the License, or

   (at your option) any later version.

   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* Decimal floating point is one of the extension to IEEE 754, which is

   described in http://grouper.ieee.org/groups/754/revision.html and

   http://www2.hursley.ibm.com/decimal/.  It completes binary floating

   point by representing floating point more exactly.  */

#ifndef DFP_H

#define DFP_H

/* When using decimal128, this is the maximum string length + 1

 * (value comes from libdecnumber's DECIMAL128_String constant).  */

#define MAX_DECIMAL_STRING  43

extern void decimal_to_string (const gdb_byte *, int, enum bfd_endian, char *);

extern int decimal_from_string (gdb_byte *, int, enum bfd_endian, const char *);

extern void decimal_from_integral (struct value *from, gdb_byte *to,

                                   int len, enum bfd_endian byte_order);

extern void decimal_from_floating (struct value *from, gdb_byte *to,

                                   int len, enum bfd_endian byte_order);

extern DOUBLEST decimal_to_doublest (const gdb_byte *from, int len,

                                     enum bfd_endian byte_order);

extern void decimal_binop (enum exp_opcode,

                           const gdb_byte *, int, enum bfd_endian,

                           const gdb_byte *, int, enum bfd_endian,

                           gdb_byte *, int, enum bfd_endian);

extern int decimal_is_zero (const gdb_byte *, int, enum bfd_endian);

extern int decimal_compare (const gdb_byte *, int, enum bfd_endian,

                            const gdb_byte *, int, enum bfd_endian);

extern void decimal_convert (const gdb_byte *, int, enum bfd_endian,

                             gdb_byte *, int, enum bfd_endian);

#endif