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Diffstat (limited to 'gcc-4.2.1-5666.3/include/floatformat.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/include/floatformat.h | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/gcc-4.2.1-5666.3/include/floatformat.h b/gcc-4.2.1-5666.3/include/floatformat.h deleted file mode 100644 index f1bd7f601..000000000 --- a/gcc-4.2.1-5666.3/include/floatformat.h +++ /dev/null @@ -1,140 +0,0 @@ -/* IEEE floating point support declarations, for GDB, the GNU Debugger. - Copyright 1991, 1994, 1995, 1997, 2000, 2003, 2005 - 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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, - - /* VAX byte order. Little endian byte order with 16-bit words. The - following example is an illustration of the byte order only; VAX - doesn't have a fully IEEE compliant floating-point format. - EX: 1.2345678e10 => 80 c5 00 00 06 42 e0 fe */ - floatformat_vax -}; - -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; - /* Bias added to a "true" exponent to form the biased exponent. It - is intentionally signed as, otherwize, -exp_bias can turn into a - very large number (e.g., given the exp_bias of 0x3fff and a 64 - bit long, the equation (long)(1 - exp_bias) evaluates to - 4294950914) instead of -16382). */ - 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; - - /* Validator method. */ - int (*is_valid) (const struct floatformat *fmt, const void *from); -}; - -/* 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 VAX. */ - -extern const struct floatformat floatformat_vax_f; -extern const struct floatformat floatformat_vax_d; -extern const struct floatformat floatformat_vax_g; - -/* 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 (const struct floatformat *, const void *, double *); - -/* The converse: convert the double *FROM to FMT - and store where TO points. */ - -extern void -floatformat_from_double (const struct floatformat *, const double *, void *); - -/* Return non-zero iff the data at FROM is a valid number in format FMT. */ - -extern int -floatformat_is_valid (const struct floatformat *fmt, const void *from); - -#endif /* defined (FLOATFORMAT_H) */ |