| 1 | /* IEEE floating point support declarations, for GDB, the GNU Debugger.
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| 2 | Copyright 1991, 1994, 1995, 1997, 2000 Free Software Foundation, Inc.
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| 3 |
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| 4 | This file is part of GDB.
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| 5 |
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| 6 | This program is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 2 of the License, or
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| 9 | (at your option) any later version.
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| 10 |
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| 11 | This program is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with this program; if not, write to the Free Software
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| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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| 19 |
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| 20 | #if !defined (FLOATFORMAT_H)
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| 21 | #define FLOATFORMAT_H 1
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| 22 |
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| 23 | #include "ansidecl.h"
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| 24 |
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| 25 | /* A floatformat consists of a sign bit, an exponent and a mantissa. Once the
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| 26 | bytes are concatenated according to the byteorder flag, then each of those
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| 27 | fields is contiguous. We number the bits with 0 being the most significant
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| 28 | (i.e. BITS_BIG_ENDIAN type numbering), and specify which bits each field
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| 29 | contains with the *_start and *_len fields. */
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| 30 |
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| 31 | /* What is the order of the bytes. */
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| 32 |
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| 33 | enum floatformat_byteorders {
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| 34 |
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| 35 | /* Standard little endian byte order.
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| 36 | EX: 1.2345678e10 => 00 00 80 c5 e0 fe 06 42 */
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| 37 |
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| 38 | floatformat_little,
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| 39 |
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| 40 | /* Standard big endian byte order.
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| 41 | EX: 1.2345678e10 => 42 06 fe e0 c5 80 00 00 */
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| 42 |
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| 43 | floatformat_big,
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| 44 |
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| 45 | /* Little endian byte order but big endian word order.
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| 46 | EX: 1.2345678e10 => e0 fe 06 42 00 00 80 c5 */
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| 47 |
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| 48 | floatformat_littlebyte_bigword
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| 49 |
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| 50 | };
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