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diff --git a/binutils-2.25/gas/config/atof-vax.c b/binutils-2.25/gas/config/atof-vax.c
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+/* atof_vax.c - turn a Flonum into a VAX floating point number
+ Copyright 1987, 1992, 1993, 1995, 1997, 1999, 2000, 2005, 2007
+ Free Software Foundation, Inc.
+
+ This file is part of GAS, the GNU Assembler.
+
+ GAS 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 3, or (at your option)
+ any later version.
+
+ GAS 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 GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+#include "as.h"
+
+/* Precision in LittleNums. */
+#define MAX_PRECISION 8
+#define H_PRECISION 8
+#define G_PRECISION 4
+#define D_PRECISION 4
+#define F_PRECISION 2
+
+/* Length in LittleNums of guard bits. */
+#define GUARD 2
+
+int flonum_gen2vax (int, FLONUM_TYPE *, LITTLENUM_TYPE *);
+
+/* Number of chars in flonum type 'letter'. */
+
+static unsigned int
+atof_vax_sizeof (int letter)
+{
+ int return_value;
+
+ /* Permitting uppercase letters is probably a bad idea.
+ Please use only lower-cased letters in case the upper-cased
+ ones become unsupported! */
+ switch (letter)
+ {
+ case 'f':
+ case 'F':
+ return_value = 4;
+ break;
+
+ case 'd':
+ case 'D':
+ case 'g':
+ case 'G':
+ return_value = 8;
+ break;
+
+ case 'h':
+ case 'H':
+ return_value = 16;
+ break;
+
+ default:
+ return_value = 0;
+ break;
+ }
+
+ return return_value;
+}
+
+static const long mask[] =
+{
+ 0x00000000,
+ 0x00000001,
+ 0x00000003,
+ 0x00000007,
+ 0x0000000f,
+ 0x0000001f,
+ 0x0000003f,
+ 0x0000007f,
+ 0x000000ff,
+ 0x000001ff,
+ 0x000003ff,
+ 0x000007ff,
+ 0x00000fff,
+ 0x00001fff,
+ 0x00003fff,
+ 0x00007fff,
+ 0x0000ffff,
+ 0x0001ffff,
+ 0x0003ffff,
+ 0x0007ffff,
+ 0x000fffff,
+ 0x001fffff,
+ 0x003fffff,
+ 0x007fffff,
+ 0x00ffffff,
+ 0x01ffffff,
+ 0x03ffffff,
+ 0x07ffffff,
+ 0x0fffffff,
+ 0x1fffffff,
+ 0x3fffffff,
+ 0x7fffffff,
+ 0xffffffff
+};
+
+
+/* Shared between flonum_gen2vax and next_bits. */
+static int bits_left_in_littlenum;
+static LITTLENUM_TYPE *littlenum_pointer;
+static LITTLENUM_TYPE *littlenum_end;
+
+static int
+next_bits (int number_of_bits)
+{
+ int return_value;
+
+ if (littlenum_pointer < littlenum_end)
+ return 0;
+ if (number_of_bits >= bits_left_in_littlenum)
+ {
+ return_value = mask[bits_left_in_littlenum] & *littlenum_pointer;
+ number_of_bits -= bits_left_in_littlenum;
+ return_value <<= number_of_bits;
+ bits_left_in_littlenum = LITTLENUM_NUMBER_OF_BITS - number_of_bits;
+ littlenum_pointer--;
+ if (littlenum_pointer >= littlenum_end)
+ return_value |= ((*littlenum_pointer) >> (bits_left_in_littlenum)) & mask[number_of_bits];
+ }
+ else
+ {
+ bits_left_in_littlenum -= number_of_bits;
+ return_value = mask[number_of_bits] & ((*littlenum_pointer) >> bits_left_in_littlenum);
+ }
+ return return_value;
+}
+
+static void
+make_invalid_floating_point_number (LITTLENUM_TYPE *words)
+{
+ *words = 0x8000; /* Floating Reserved Operand Code. */
+}
+
+
+static int /* 0 means letter is OK. */
+what_kind_of_float (int letter, /* In: lowercase please. What kind of float? */
+ int *precisionP, /* Number of 16-bit words in the float. */
+ long *exponent_bitsP) /* Number of exponent bits. */
+{
+ int retval;
+
+ retval = 0;
+ switch (letter)
+ {
+ case 'f':
+ *precisionP = F_PRECISION;
+ *exponent_bitsP = 8;
+ break;
+
+ case 'd':
+ *precisionP = D_PRECISION;
+ *exponent_bitsP = 8;
+ break;
+
+ case 'g':
+ *precisionP = G_PRECISION;
+ *exponent_bitsP = 11;
+ break;
+
+ case 'h':
+ *precisionP = H_PRECISION;
+ *exponent_bitsP = 15;
+ break;
+
+ default:
+ retval = 69;
+ break;
+ }
+ return retval;
+}
+
+/* Warning: this returns 16-bit LITTLENUMs, because that is
+ what the VAX thinks in. It is up to the caller to figure
+ out any alignment problems and to conspire for the bytes/word
+ to be emitted in the right order. Bigendians beware! */
+
+static char *
+atof_vax (char *str, /* Text to convert to binary. */
+ int what_kind, /* 'd', 'f', 'g', 'h' */
+ LITTLENUM_TYPE *words) /* Build the binary here. */
+{
+ FLONUM_TYPE f;
+ LITTLENUM_TYPE bits[MAX_PRECISION + MAX_PRECISION + GUARD];
+ /* Extra bits for zeroed low-order bits.
+ The 1st MAX_PRECISION are zeroed,
+ the last contain flonum bits. */
+ char *return_value;
+ int precision; /* Number of 16-bit words in the format. */
+ long exponent_bits;
+
+ return_value = str;
+ f.low = bits + MAX_PRECISION;
+ f.high = NULL;
+ f.leader = NULL;
+ f.exponent = 0;
+ f.sign = '\0';
+
+ if (what_kind_of_float (what_kind, &precision, &exponent_bits))
+ {
+ return_value = NULL;
+ make_invalid_floating_point_number (words);
+ }
+
+ if (return_value)
+ {
+ memset (bits, '\0', sizeof (LITTLENUM_TYPE) * MAX_PRECISION);
+
+ /* Use more LittleNums than seems
+ necessary: the highest flonum may have
+ 15 leading 0 bits, so could be useless. */
+ f.high = f.low + precision - 1 + GUARD;
+
+ if (atof_generic (&return_value, ".", "eE", &f))
+ {
+ make_invalid_floating_point_number (words);
+ return_value = NULL;
+ }
+ else if (flonum_gen2vax (what_kind, &f, words))
+ return_value = NULL;
+ }
+
+ return return_value;
+}
+
+/* In: a flonum, a vax floating point format.
+ Out: a vax floating-point bit pattern. */
+
+int
+flonum_gen2vax (int format_letter, /* One of 'd' 'f' 'g' 'h'. */
+ FLONUM_TYPE *f,
+ LITTLENUM_TYPE *words) /* Deliver answer here. */
+{
+ LITTLENUM_TYPE *lp;
+ int precision;
+ long exponent_bits;
+ int return_value; /* 0 == OK. */
+
+ return_value = what_kind_of_float (format_letter, &precision, &exponent_bits);
+
+ if (return_value != 0)
+ make_invalid_floating_point_number (words);
+
+ else
+ {
+ if (f->low > f->leader)
+ /* 0.0e0 seen. */
+ memset (words, '\0', sizeof (LITTLENUM_TYPE) * precision);
+
+ else
+ {
+ long exponent_1;
+ long exponent_2;
+ long exponent_3;
+ long exponent_4;
+ int exponent_skippage;
+ LITTLENUM_TYPE word1;
+
+ /* JF: Deal with new Nan, +Inf and -Inf codes. */
+ if (f->sign != '-' && f->sign != '+')
+ {
+ make_invalid_floating_point_number (words);
+ return return_value;
+ }
+
+ /* All vaxen floating_point formats (so far) have:
+ Bit 15 is sign bit.
+ Bits 14:n are excess-whatever exponent.
+ Bits n-1:0 (if any) are most significant bits of fraction.
+ Bits 15:0 of the next word are the next most significant bits.
+ And so on for each other word.
+
+ All this to be compatible with a KF11?? (Which is still faster
+ than lots of vaxen I can think of, but it also has higher
+ maintenance costs ... sigh).
+
+ So we need: number of bits of exponent, number of bits of
+ mantissa. */
+
+ bits_left_in_littlenum = LITTLENUM_NUMBER_OF_BITS;
+ littlenum_pointer = f->leader;
+ littlenum_end = f->low;
+ /* Seek (and forget) 1st significant bit. */
+ for (exponent_skippage = 0;
+ !next_bits (1);
+ exponent_skippage++);
+
+ exponent_1 = f->exponent + f->leader + 1 - f->low;
+ /* Radix LITTLENUM_RADIX, point just higher than f->leader. */
+ exponent_2 = exponent_1 * LITTLENUM_NUMBER_OF_BITS;
+ /* Radix 2. */
+ exponent_3 = exponent_2 - exponent_skippage;
+ /* Forget leading zeros, forget 1st bit. */
+ exponent_4 = exponent_3 + (1 << (exponent_bits - 1));
+ /* Offset exponent. */
+
+ if (exponent_4 & ~mask[exponent_bits])
+ {
+ /* Exponent overflow. Lose immediately. */
+ make_invalid_floating_point_number (words);
+
+ /* We leave return_value alone: admit we read the
+ number, but return a floating exception
+ because we can't encode the number. */
+ }
+ else
+ {
+ lp = words;
+
+ /* Word 1. Sign, exponent and perhaps high bits.
+ Assume 2's complement integers. */
+ word1 = (((exponent_4 & mask[exponent_bits]) << (15 - exponent_bits))
+ | ((f->sign == '+') ? 0 : 0x8000)
+ | next_bits (15 - exponent_bits));
+ *lp++ = word1;
+
+ /* The rest of the words are just mantissa bits. */
+ for (; lp < words + precision; lp++)
+ *lp = next_bits (LITTLENUM_NUMBER_OF_BITS);
+
+ if (next_bits (1))
+ {
+ /* Since the NEXT bit is a 1, round UP the mantissa.
+ The cunning design of these hidden-1 floats permits
+ us to let the mantissa overflow into the exponent, and
+ it 'does the right thing'. However, we lose if the
+ highest-order bit of the lowest-order word flips.
+ Is that clear? */
+ unsigned long carry;
+
+ /*
+ #if (sizeof(carry)) < ((sizeof(bits[0]) * BITS_PER_CHAR) + 2)
+ Please allow at least 1 more bit in carry than is in a LITTLENUM.
+ We need that extra bit to hold a carry during a LITTLENUM carry
+ propagation. Another extra bit (kept 0) will assure us that we
+ don't get a sticky sign bit after shifting right, and that
+ permits us to propagate the carry without any masking of bits.
+ #endif */
+ for (carry = 1, lp--;
+ carry && (lp >= words);
+ lp--)
+ {
+ carry = *lp + carry;
+ *lp = carry;
+ carry >>= LITTLENUM_NUMBER_OF_BITS;
+ }
+
+ if ((word1 ^ *words) & (1 << (LITTLENUM_NUMBER_OF_BITS - 1)))
+ {
+ make_invalid_floating_point_number (words);
+ /* We leave return_value alone: admit we read the
+ number, but return a floating exception
+ because we can't encode the number. */
+ }
+ }
+ }
+ }
+ }
+ return return_value;
+}
+
+/* JF this used to be in vax.c but this looks like a better place for it. */
+
+/* In: input_line_pointer->the 1st character of a floating-point
+ number.
+ 1 letter denoting the type of statement that wants a
+ binary floating point number returned.
+ Address of where to build floating point literal.
+ Assumed to be 'big enough'.
+ Address of where to return size of literal (in chars).
+
+ Out: Input_line_pointer->of next char after floating number.
+ Error message, or 0.
+ Floating point literal.
+ Number of chars we used for the literal. */
+
+#define MAXIMUM_NUMBER_OF_LITTLENUMS 8 /* For .hfloats. */
+
+char *
+vax_md_atof (int what_statement_type,
+ char *literalP,
+ int *sizeP)
+{
+ LITTLENUM_TYPE words[MAXIMUM_NUMBER_OF_LITTLENUMS];
+ char kind_of_float;
+ unsigned int number_of_chars;
+ LITTLENUM_TYPE *littlenumP;
+
+ switch (what_statement_type)
+ {
+ case 'F':
+ case 'f':
+ kind_of_float = 'f';
+ break;
+
+ case 'D':
+ case 'd':
+ kind_of_float = 'd';
+ break;
+
+ case 'g':
+ kind_of_float = 'g';
+ break;
+
+ case 'h':
+ kind_of_float = 'h';
+ break;
+
+ default:
+ kind_of_float = 0;
+ break;
+ };
+
+ if (kind_of_float)
+ {
+ LITTLENUM_TYPE *limit;
+
+ input_line_pointer = atof_vax (input_line_pointer,
+ kind_of_float,
+ words);
+ /* The atof_vax() builds up 16-bit numbers.
+ Since the assembler may not be running on
+ a little-endian machine, be very careful about
+ converting words to chars. */
+ number_of_chars = atof_vax_sizeof (kind_of_float);
+ know (number_of_chars <= MAXIMUM_NUMBER_OF_LITTLENUMS * sizeof (LITTLENUM_TYPE));
+ limit = words + (number_of_chars / sizeof (LITTLENUM_TYPE));
+ for (littlenumP = words; littlenumP < limit; littlenumP++)
+ {
+ md_number_to_chars (literalP, *littlenumP, sizeof (LITTLENUM_TYPE));
+ literalP += sizeof (LITTLENUM_TYPE);
+ };
+ }
+ else
+ number_of_chars = 0;
+
+ *sizeP = number_of_chars;
+ return kind_of_float ? NULL : _("Unrecognized or unsupported floating point constant");
+}
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