/* IEEE floating point support declarations, for GDB, the GNU Debugger.
- Copyright (C) 1991 Free Software Foundation, Inc.
+ Copyright 1991, 1994, 1995, 1997, 2000, 2003 Free Software Foundation, Inc.
This file is part of GDB.
unsigned int exp_start;
unsigned int exp_len;
- /* Amount added to "true" exponent. 0x3fff for many IEEE extendeds. */
- unsigned int exp_bias;
+ /* 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. */
/* 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 char *from);
};
/* floatformats for IEEE single and double, big and little endian. */
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_arm_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 *));
+floatformat_to_double (const struct floatformat *, const 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 *));
+floatformat_from_double (const struct floatformat *, const double *, char *);
+
+/* 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 char *from);
#endif /* defined (FLOATFORMAT_H) */