1 /* Decimal floating point support for GDB. 2 3 Copyright (C) 2007-2013 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, 34 const char *); 35 extern void decimal_from_integral (struct value *from, gdb_byte *to, 36 int len, enum bfd_endian byte_order); 37 extern void decimal_from_floating (struct value *from, gdb_byte *to, 38 int len, enum bfd_endian byte_order); 39 extern DOUBLEST decimal_to_doublest (const gdb_byte *from, int len, 40 enum bfd_endian byte_order); 41 extern void decimal_binop (enum exp_opcode, 42 const gdb_byte *, int, enum bfd_endian, 43 const gdb_byte *, int, enum bfd_endian, 44 gdb_byte *, int, enum bfd_endian); 45 extern int decimal_is_zero (const gdb_byte *, int, enum bfd_endian); 46 extern int decimal_compare (const gdb_byte *, int, enum bfd_endian, 47 const gdb_byte *, int, enum bfd_endian); 48 extern void decimal_convert (const gdb_byte *, int, enum bfd_endian, 49 gdb_byte *, int, enum bfd_endian); 50 51 #endif 52