/* Low level packing and unpacking of values for GDB, the GNU Debugger.
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007
+ 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
This file is part of GDB.
#include "gdb_assert.h"
#include "regcache.h"
#include "block.h"
+#include "dfp.h"
/* Prototypes for exported functions. */
int bitsize;
/* Only used for bitfields; position of start of field. For
- BITS_BIG_ENDIAN=0 targets, it is the position of the LSB. For
- BITS_BIG_ENDIAN=1 targets, it is the position of the MSB. */
+ gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For
+ gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */
int bitpos;
/* Frame register value is relative to. This will be described in
error (_("Invalid floating value found in program."));
return foo;
}
+
/* Extract a value as a C pointer. Does not deallocate the value.
Note that val's type may not actually be a pointer; value_as_long
handles all the cases. */
case TYPE_CODE_FLT:
return extract_typed_floating (valaddr, type);
+ case TYPE_CODE_DECFLOAT:
+ /* libdecnumber has a function to convert from decimal to integer, but
+ it doesn't work when the decimal number has a fractional part. */
+ return decimal_to_doublest (valaddr, len);
+
case TYPE_CODE_PTR:
case TYPE_CODE_REF:
/* Assume a CORE_ADDR can fit in a LONGEST (for now). Not sure
return extract_typed_floating (valaddr, type);
}
+ else if (code == TYPE_CODE_DECFLOAT)
+ return decimal_to_doublest (valaddr, len);
else if (nosign)
{
/* Unsigned -- be sure we compensate for signed LONGEST. */
/* Extract bits. See comment above. */
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
lsbcount = (sizeof val * 8 - bitpos % 8 - bitsize);
else
lsbcount = (bitpos % 8);
oword = extract_unsigned_integer (addr, sizeof oword);
/* Shifting for bit field depends on endianness of the target machine. */
- if (BITS_BIG_ENDIAN)
+ if (gdbarch_bits_big_endian (current_gdbarch))
bitpos = sizeof (oword) * 8 - bitpos - bitsize;
oword &= ~(mask << bitpos);
return val;
}
+struct value *
+value_from_decfloat (struct type *type, const gdb_byte *dec)
+{
+ struct value *val = allocate_value (type);
+
+ memcpy (value_contents_raw (val), dec, TYPE_LENGTH (type));
+
+ return val;
+}
+
struct value *
coerce_ref (struct value *arg)
{