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author | cvs2svn <> | 2002-09-25 03:01:31 +0400 |
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committer | cvs2svn <> | 2002-09-25 03:01:31 +0400 |
commit | 80502cc9c875e9ec0c4b370b8f0de11a2579d3c7 (patch) | |
tree | 3117b58c277584b607c2529afe33caaf03c2f0b1 /include/floatformat.h | |
parent | 481f35c8b3d9136e2430845fad71fb21fa3bc1d4 (diff) |
This commit was manufactured by cvs2svn to create branchtcltk840-20020924-branchpointtcltk840-20020924-branch
'tcltk840-20020924-branch'.
Sprout from carlton_dictionary-branch 2002-09-20 00:21:59 UTC cvs2svn 'This commit was manufactured by cvs2svn to create branch'
Cherrypick from master 2002-09-24 23:01:30 UTC Nathanael Nerode <neroden@gcc.gnu.org> '2002-09-22 Nathanael Nerode <neroden@gcc.gnu.org>':
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Diffstat (limited to 'include/floatformat.h')
-rw-r--r-- | include/floatformat.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/include/floatformat.h b/include/floatformat.h deleted file mode 100644 index 53ead3eee..000000000 --- a/include/floatformat.h +++ /dev/null @@ -1,121 +0,0 @@ -/* IEEE floating point support declarations, for GDB, the GNU Debugger. - Copyright 1991, 1994, 1995, 1997, 2000 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 2 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, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if !defined (FLOATFORMAT_H) -#define FLOATFORMAT_H 1 - -#include "ansidecl.h" - -/* A floatformat consists of a sign bit, an exponent and a mantissa. Once the - bytes are concatenated according to the byteorder flag, then each of those - fields is contiguous. We number the bits with 0 being the most significant - (i.e. BITS_BIG_ENDIAN type numbering), and specify which bits each field - contains with the *_start and *_len fields. */ - -/* What is the order of the bytes. */ - -enum floatformat_byteorders { - - /* Standard little endian byte order. - EX: 1.2345678e10 => 00 00 80 c5 e0 fe 06 42 */ - - floatformat_little, - - /* Standard big endian byte order. - EX: 1.2345678e10 => 42 06 fe e0 c5 80 00 00 */ - - floatformat_big, - - /* Little endian byte order but big endian word order. - EX: 1.2345678e10 => e0 fe 06 42 00 00 80 c5 */ - - floatformat_littlebyte_bigword - -}; - -enum floatformat_intbit { floatformat_intbit_yes, floatformat_intbit_no }; - -struct floatformat -{ - enum floatformat_byteorders byteorder; - unsigned int totalsize; /* Total size of number in bits */ - - /* Sign bit is always one bit long. 1 means negative, 0 means positive. */ - unsigned int sign_start; - - unsigned int exp_start; - unsigned int exp_len; - /* Amount added to "true" exponent. 0x3fff for many IEEE extendeds. */ - unsigned int exp_bias; - /* Exponent value which indicates NaN. This is the actual value stored in - the float, not adjusted by the exp_bias. This usually consists of all - one bits. */ - unsigned int exp_nan; - - unsigned int man_start; - unsigned int man_len; - - /* Is the integer bit explicit or implicit? */ - enum floatformat_intbit intbit; - - /* Internal name for debugging. */ - const char *name; -}; - -/* floatformats for IEEE single and double, big and little endian. */ - -extern const struct floatformat floatformat_ieee_single_big; -extern const struct floatformat floatformat_ieee_single_little; -extern const struct floatformat floatformat_ieee_double_big; -extern const struct floatformat floatformat_ieee_double_little; - -/* floatformat for ARM IEEE double, little endian bytes and big endian words */ - -extern const struct floatformat floatformat_ieee_double_littlebyte_bigword; - -/* floatformats for various extendeds. */ - -extern const struct floatformat floatformat_i387_ext; -extern const struct floatformat floatformat_m68881_ext; -extern const struct floatformat floatformat_i960_ext; -extern const struct floatformat floatformat_m88110_ext; -extern const struct floatformat floatformat_m88110_harris_ext; -extern const struct floatformat floatformat_arm_ext_big; -extern const struct floatformat floatformat_arm_ext_littlebyte_bigword; -/* IA-64 Floating Point register spilt into memory. */ -extern const struct floatformat floatformat_ia64_spill_big; -extern const struct floatformat floatformat_ia64_spill_little; -extern const struct floatformat floatformat_ia64_quad_big; -extern const struct floatformat floatformat_ia64_quad_little; - -/* Convert from FMT to a double. - FROM is the address of the extended float. - Store the double in *TO. */ - -extern void -floatformat_to_double PARAMS ((const struct floatformat *, char *, double *)); - -/* The converse: convert the double *FROM to FMT - and store where TO points. */ - -extern void -floatformat_from_double PARAMS ((const struct floatformat *, - double *, char *)); - -#endif /* defined (FLOATFORMAT_H) */ |