X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fconfig%2Fatof-ieee.c;h=03f90bea75d8e29c5ed9b6a97c44c75dfd63eef9;hb=fe33e22e7b2ef36f564df92c7259728eaf2e5028;hp=dcda1bcb6a2b081ef662da19f8f9e0eb95be4e1a;hpb=abd8680d6efd97e7ba848a6392ee3ad72be18cd0;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/atof-ieee.c b/gas/config/atof-ieee.c index dcda1bcb6a..03f90bea75 100644 --- a/gas/config/atof-ieee.c +++ b/gas/config/atof-ieee.c @@ -1,12 +1,11 @@ /* atof_ieee.c - turn a Flonum into an IEEE floating point number - Copyright (C) 1987, 92, 93, 94, 95, 96, 97, 98, 1999 - Free Software Foundation, Inc. + Copyright (C) 1987-2019 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 2, or (at your option) + 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, @@ -16,29 +15,29 @@ 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, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ #include "as.h" /* Flonums returned here. */ extern FLONUM_TYPE generic_floating_point_number; -static int next_bits PARAMS ((int)); -static void unget_bits PARAMS ((int)); -static void make_invalid_floating_point_number PARAMS ((LITTLENUM_TYPE *)); - -extern const char EXP_CHARS[]; -/* Precision in LittleNums. */ +/* Precision in LittleNums. */ /* Don't count the gap in the m68k extended precision format. */ -#define MAX_PRECISION (5) -#define F_PRECISION (2) -#define D_PRECISION (4) -#define X_PRECISION (5) -#define P_PRECISION (5) - -/* Length in LittleNums of guard bits. */ -#define GUARD (2) +#define MAX_PRECISION 5 +#define H_PRECISION 1 +#define F_PRECISION 2 +#define D_PRECISION 4 +#define X_PRECISION 5 +#define P_PRECISION 5 + +/* Length in LittleNums of guard bits. */ +#define GUARD 2 + +#ifndef TC_LARGEST_EXPONENT_IS_NORMAL +#define TC_LARGEST_EXPONENT_IS_NORMAL(PRECISION) 0 +#endif static const unsigned long mask[] = { @@ -77,19 +76,18 @@ static const unsigned long mask[] = 0xffffffff, }; - static int bits_left_in_littlenum; static int littlenums_left; static LITTLENUM_TYPE *littlenum_pointer; static int -next_bits (number_of_bits) - int number_of_bits; +next_bits (int number_of_bits) { int return_value; if (!littlenums_left) - return (0); + return 0; + if (number_of_bits >= bits_left_in_littlenum) { return_value = mask[bits_left_in_littlenum] & *littlenum_pointer; @@ -100,21 +98,24 @@ next_bits (number_of_bits) { bits_left_in_littlenum = LITTLENUM_NUMBER_OF_BITS - number_of_bits; --littlenum_pointer; - return_value |= (*littlenum_pointer >> bits_left_in_littlenum) & mask[number_of_bits]; + 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_value = + mask[number_of_bits] & (*littlenum_pointer >> bits_left_in_littlenum); } - return (return_value); + return return_value; } -/* Num had better be less than LITTLENUM_NUMBER_OF_BITS */ +/* Num had better be less than LITTLENUM_NUMBER_OF_BITS. */ + static void -unget_bits (num) - int num; +unget_bits (int num) { if (!littlenums_left) { @@ -124,7 +125,8 @@ unget_bits (num) } else if (bits_left_in_littlenum + num > LITTLENUM_NUMBER_OF_BITS) { - bits_left_in_littlenum = num - (LITTLENUM_NUMBER_OF_BITS - bits_left_in_littlenum); + bits_left_in_littlenum = + num - (LITTLENUM_NUMBER_OF_BITS - bits_left_in_littlenum); ++littlenum_pointer; ++littlenums_left; } @@ -133,43 +135,41 @@ unget_bits (num) } static void -make_invalid_floating_point_number (words) - LITTLENUM_TYPE *words; +make_invalid_floating_point_number (LITTLENUM_TYPE *words) { as_bad (_("cannot create floating-point number")); - words[0] = (LITTLENUM_TYPE) ((unsigned) -1) >> 1; /* Zero the leftmost bit */ + /* Zero the leftmost bit. */ + words[0] = (LITTLENUM_TYPE) ((unsigned) -1) >> 1; words[1] = (LITTLENUM_TYPE) -1; words[2] = (LITTLENUM_TYPE) -1; words[3] = (LITTLENUM_TYPE) -1; words[4] = (LITTLENUM_TYPE) -1; words[5] = (LITTLENUM_TYPE) -1; } - -/************************************************************************\ - * Warning: this returns 16-bit LITTLENUMs. 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! * - * * -\************************************************************************/ -/* Note that atof-ieee always has X and P precisions enabled. it is up - to md_atof to filter them out if the target machine does not support - them. */ +/* Build a floating point constant at str into a IEEE floating + point number. This function does the same thing as atof_ieee + however it allows more control over the exact format, i.e. + explicitly specifying the precision and number of exponent bits + instead of relying on this infomation being deduced from a given type. + + If generic_float_info is not NULL then it will be set to contain generic + infomation about the parsed floating point number. -/* Returns pointer past text consumed. */ + Returns pointer past text consumed. */ char * -atof_ieee (str, what_kind, words) - char *str; /* Text to convert to binary. */ - int what_kind; /* 'd', 'f', 'g', 'h' */ - LITTLENUM_TYPE *words; /* Build the binary here. */ +atof_ieee_detail (char * str, + int precision, + int exponent_bits, + LITTLENUM_TYPE * words, + FLONUM_TYPE * generic_float_info) { - /* Extra bits for zeroed low-order bits. The 1st MAX_PRECISION are - zeroed, the last contain flonum bits. */ + /* Extra bits for zeroed low-order bits. + The 1st MAX_PRECISION are zeroed, the last contain flonum bits. */ static LITTLENUM_TYPE bits[MAX_PRECISION + MAX_PRECISION + GUARD]; char *return_value; - /* Number of 16-bit words in the format. */ - int precision; - long exponent_bits; + + /* Number of 16-bit words in the format. */ FLONUM_TYPE save_gen_flonum; /* We have to save the generic_floating_point_number because it @@ -186,12 +186,57 @@ atof_ieee (str, what_kind, words) generic_floating_point_number.sign = '\0'; /* Use more LittleNums than seems necessary: the highest flonum may - have 15 leading 0 bits, so could be useless. */ + have 15 leading 0 bits, so could be useless. */ memset (bits, '\0', sizeof (LITTLENUM_TYPE) * MAX_PRECISION); + generic_floating_point_number.high + = generic_floating_point_number.low + precision - 1 + GUARD; + + if (atof_generic (&return_value, ".", EXP_CHARS, + &generic_floating_point_number)) + { + make_invalid_floating_point_number (words); + return NULL; + } + + if (generic_float_info) + *generic_float_info = generic_floating_point_number; + + gen_to_words (words, precision, exponent_bits); + + /* Restore the generic_floating_point_number's storage alloc (and + everything else). */ + generic_floating_point_number = save_gen_flonum; + + return return_value; +} + +/* Warning: This returns 16-bit LITTLENUMs. 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! */ + +/* Note that atof-ieee always has X and P precisions enabled. it is up + to md_atof to filter them out if the target machine does not support + them. */ + +/* Returns pointer past text consumed. */ +char * +atof_ieee (char *str, /* Text to convert to binary. */ + int what_kind, /* 'd', 'f', 'x', 'p'. */ + LITTLENUM_TYPE *words) /* Build the binary here. */ +{ + int precision; + long exponent_bits; + switch (what_kind) { + case 'h': + case 'H': + precision = H_PRECISION; + exponent_bits = 5; + break; + case 'f': case 'F': case 's': @@ -218,7 +263,6 @@ atof_ieee (str, what_kind, words) case 'p': case 'P': - precision = P_PRECISION; exponent_bits = -1; break; @@ -228,30 +272,13 @@ atof_ieee (str, what_kind, words) return (NULL); } - generic_floating_point_number.high - = generic_floating_point_number.low + precision - 1 + GUARD; - - if (atof_generic (&return_value, ".", EXP_CHARS, - &generic_floating_point_number)) - { - make_invalid_floating_point_number (words); - return (NULL); - } - gen_to_words (words, precision, exponent_bits); - - /* Restore the generic_floating_point_number's storage alloc (and - everything else). */ - generic_floating_point_number = save_gen_flonum; - - return return_value; + return atof_ieee_detail (str, precision, exponent_bits, words, NULL); } /* Turn generic_floating_point_number into a real float/double/extended. */ + int -gen_to_words (words, precision, exponent_bits) - LITTLENUM_TYPE *words; - int precision; - long exponent_bits; +gen_to_words (LITTLENUM_TYPE *words, int precision, long exponent_bits) { int return_value = 0; @@ -274,20 +301,27 @@ gen_to_words (words, precision, exponent_bits) if (generic_floating_point_number.low > generic_floating_point_number.leader) { - /* 0.0e0 seen. */ + /* 0.0e0 seen. */ if (generic_floating_point_number.sign == '+') words[0] = 0x0000; else words[0] = 0x8000; memset (&words[1], '\0', (words_end - words - 1) * sizeof (LITTLENUM_TYPE)); - return (return_value); + return return_value; } - /* NaN: Do the right thing */ + /* NaN: Do the right thing. */ if (generic_floating_point_number.sign == 0) { - if (precision == F_PRECISION) + if (TC_LARGEST_EXPONENT_IS_NORMAL (precision)) + as_warn (_("NaNs are not supported by this target")); + + if (precision == H_PRECISION) + { + words[0] = 0x7fff; + } + else if (precision == F_PRECISION) { words[0] = 0x7fff; words[1] = 0xffff; @@ -301,17 +335,17 @@ gen_to_words (words, precision, exponent_bits) words[3] = 0xffff; words[4] = 0xffff; words[5] = 0xffff; -#else /* ! TC_M68K */ +#else /* ! TC_M68K */ #ifdef TC_I386 words[0] = 0xffff; words[1] = 0xc000; words[2] = 0; words[3] = 0; words[4] = 0; -#else /* ! TC_I386 */ +#else /* ! TC_I386 */ abort (); -#endif /* ! TC_I386 */ -#endif /* ! TC_M68K */ +#endif /* ! TC_I386 */ +#endif /* ! TC_M68K */ } else { @@ -324,8 +358,15 @@ gen_to_words (words, precision, exponent_bits) } else if (generic_floating_point_number.sign == 'P') { - /* +INF: Do the right thing */ - if (precision == F_PRECISION) + if (TC_LARGEST_EXPONENT_IS_NORMAL (precision)) + as_warn (_("Infinities are not supported by this target")); + + /* +INF: Do the right thing. */ + if (precision == H_PRECISION) + { + words[0] = 0x7c00; + } + else if (precision == F_PRECISION) { words[0] = 0x7f80; words[1] = 0; @@ -339,17 +380,17 @@ gen_to_words (words, precision, exponent_bits) words[3] = 0; words[4] = 0; words[5] = 0; -#else /* ! TC_M68K */ +#else /* ! TC_M68K */ #ifdef TC_I386 words[0] = 0x7fff; words[1] = 0x8000; words[2] = 0; words[3] = 0; words[4] = 0; -#else /* ! TC_I386 */ +#else /* ! TC_I386 */ abort (); -#endif /* ! TC_I386 */ -#endif /* ! TC_M68K */ +#endif /* ! TC_I386 */ +#endif /* ! TC_M68K */ } else { @@ -358,12 +399,19 @@ gen_to_words (words, precision, exponent_bits) words[2] = 0; words[3] = 0; } - return (return_value); + return return_value; } else if (generic_floating_point_number.sign == 'N') { - /* Negative INF */ - if (precision == F_PRECISION) + if (TC_LARGEST_EXPONENT_IS_NORMAL (precision)) + as_warn (_("Infinities are not supported by this target")); + + /* Negative INF. */ + if (precision == H_PRECISION) + { + words[0] = 0xfc00; + } + else if (precision == F_PRECISION) { words[0] = 0xff80; words[1] = 0x0; @@ -377,17 +425,17 @@ gen_to_words (words, precision, exponent_bits) words[3] = 0; words[4] = 0; words[5] = 0; -#else /* ! TC_M68K */ +#else /* ! TC_M68K */ #ifdef TC_I386 words[0] = 0xffff; words[1] = 0x8000; words[2] = 0; words[3] = 0; words[4] = 0; -#else /* ! TC_I386 */ +#else /* ! TC_I386 */ abort (); -#endif /* ! TC_I386 */ -#endif /* ! TC_M68K */ +#endif /* ! TC_I386 */ +#endif /* ! TC_M68K */ } else { @@ -396,46 +444,49 @@ gen_to_words (words, precision, exponent_bits) words[2] = 0x0; words[3] = 0x0; } - return (return_value); + return return_value; } - /* - * The floating point formats we support 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(s) are the next most significant bits. - * - * So we need: number of bits of exponent, number of bits of - * mantissa. - */ + + /* The floating point formats we support 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(s) are the next most significant bits. + + So we need: number of bits of exponent, number of bits of + mantissa. */ bits_left_in_littlenum = LITTLENUM_NUMBER_OF_BITS; littlenum_pointer = generic_floating_point_number.leader; littlenums_left = (1 + generic_floating_point_number.leader - generic_floating_point_number.low); - /* Seek (and forget) 1st significant bit */ - for (exponent_skippage = 0; !next_bits (1); ++exponent_skippage);; + + /* Seek (and forget) 1st significant bit. */ + for (exponent_skippage = 0; !next_bits (1); ++exponent_skippage); exponent_1 = (generic_floating_point_number.exponent + generic_floating_point_number.leader + 1 - generic_floating_point_number.low); + /* Radix LITTLENUM_RADIX, point just higher than - generic_floating_point_number.leader. */ + generic_floating_point_number.leader. */ exponent_2 = exponent_1 * LITTLENUM_NUMBER_OF_BITS; - /* Radix 2. */ + + /* Radix 2. */ exponent_3 = exponent_2 - exponent_skippage; - /* Forget leading zeros, forget 1st bit. */ + + /* Forget leading zeros, forget 1st bit. */ exponent_4 = exponent_3 + ((1 << (exponent_bits - 1)) - 2); - /* Offset exponent. */ + /* Offset exponent. */ lp = words; - /* Word 1. Sign, exponent and perhaps high bits. */ + /* Word 1. Sign, exponent and perhaps high bits. */ word1 = ((generic_floating_point_number.sign == '+') ? 0 : (1 << (LITTLENUM_NUMBER_OF_BITS - 1))); - /* Assume 2's complement integers. */ + /* Assume 2's complement integers. */ if (exponent_4 <= 0) { int prec_bits; @@ -443,7 +494,8 @@ gen_to_words (words, precision, exponent_bits) unget_bits (1); num_bits = -exponent_4; - prec_bits = LITTLENUM_NUMBER_OF_BITS * precision - (exponent_bits + 1 + num_bits); + prec_bits = + LITTLENUM_NUMBER_OF_BITS * precision - (exponent_bits + 1 + num_bits); #ifdef TC_I386 if (precision == X_PRECISION && exponent_bits == 15) { @@ -457,14 +509,15 @@ gen_to_words (words, precision, exponent_bits) if (num_bits >= LITTLENUM_NUMBER_OF_BITS - exponent_bits) { - /* Bigger than one littlenum */ + /* Bigger than one littlenum. */ num_bits -= (LITTLENUM_NUMBER_OF_BITS - 1) - exponent_bits; *lp++ = word1; - if (num_bits + exponent_bits + 1 > precision * LITTLENUM_NUMBER_OF_BITS) + if (num_bits + exponent_bits + 1 + > precision * LITTLENUM_NUMBER_OF_BITS) { - /* Exponent overflow */ + /* Exponent overflow. */ make_invalid_floating_point_number (words); - return (return_value); + return return_value; } #ifdef TC_M68K if (precision == X_PRECISION && exponent_bits == 15) @@ -490,14 +543,15 @@ gen_to_words (words, precision, exponent_bits) } else { - word1 |= next_bits ((LITTLENUM_NUMBER_OF_BITS - 1) - (exponent_bits + num_bits)); + word1 |= next_bits ((LITTLENUM_NUMBER_OF_BITS - 1) + - (exponent_bits + num_bits)); *lp++ = word1; } } while (lp < words_end) *lp++ = next_bits (LITTLENUM_NUMBER_OF_BITS); - /* Round the mantissa up, but don't change the number */ + /* Round the mantissa up, but don't change the number. */ if (next_bits (1)) { --lp; @@ -568,17 +622,15 @@ gen_to_words (words, precision, exponent_bits) return return_value; } - else if ((unsigned long) exponent_4 >= mask[exponent_bits]) + else if ((unsigned long) exponent_4 > mask[exponent_bits] + || (! TC_LARGEST_EXPONENT_IS_NORMAL (precision) + && (unsigned long) exponent_4 == mask[exponent_bits])) { - /* - * Exponent overflow. Lose immediately. - */ - - /* - * We leave return_value alone: admit we read the - * number, but return a floating exception - * because we can't encode the number. - */ + /* Exponent overflow. Lose immediately. */ + + /* We leave return_value alone: admit we read the + number, but return a floating exception + because we can't encode the number. */ make_invalid_floating_point_number (words); return return_value; } @@ -591,7 +643,7 @@ gen_to_words (words, precision, exponent_bits) *lp++ = word1; /* X_PRECISION is special: on the 68k, it has 16 bits of zero in the - middle. Either way, it is then followed by a 1 bit. */ + middle. Either way, it is then followed by a 1 bit. */ if (exponent_bits == 15 && precision == X_PRECISION) { #ifdef TC_M68K @@ -601,21 +653,19 @@ gen_to_words (words, precision, exponent_bits) | next_bits (LITTLENUM_NUMBER_OF_BITS - 1)); } - /* The rest of the words are just mantissa bits. */ + /* The rest of the words are just mantissa bits. */ while (lp < words_end) *lp++ = next_bits (LITTLENUM_NUMBER_OF_BITS); if (next_bits (1)) { unsigned long carry; - /* - * 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? - */ + /* 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? */ /* #if (sizeof(carry)) < ((sizeof(bits[0]) * BITS_PER_CHAR) + 2) Please allow at least 1 more bit in carry than is in a LITTLENUM. @@ -624,11 +674,13 @@ gen_to_words (words, precision, exponent_bits) 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--) + for (carry = 1, lp--; carry; lp--) { carry = *lp + carry; *lp = carry; carry >>= LITTLENUM_NUMBER_OF_BITS; + if (lp == words) + break; } if (precision == X_PRECISION && exponent_bits == 15) { @@ -638,46 +690,25 @@ gen_to_words (words, precision, exponent_bits) { #ifdef TC_M68K /* On the m68k there is a gap of 16 bits. We must - explicitly propagate the carry into the exponent. */ + explicitly propagate the carry into the exponent. */ words[0] += words[1]; words[1] = 0; lp++; #endif - /* Put back the integer bit. */ + /* Put back the integer bit. */ lp[1] |= 1 << (LITTLENUM_NUMBER_OF_BITS - 1); } - } + } if ((word1 ^ *words) & (1 << (LITTLENUM_NUMBER_OF_BITS - 1))) { - /* We leave return_value alone: admit we read the - * number, but return a floating exception - * because we can't encode the number. - */ + /* We leave return_value alone: admit we read the number, + but return a floating exception because we can't encode + the number. */ *words &= ~(1 << (LITTLENUM_NUMBER_OF_BITS - 1)); - /* make_invalid_floating_point_number (words); */ - /* return return_value; */ } } - return (return_value); -} - -#if 0 /* unused */ -/* This routine is a real kludge. Someone really should do it better, - but I'm too lazy, and I don't understand this stuff all too well - anyway. (JF) */ -static void -int_to_gen (x) - long x; -{ - char buf[20]; - char *bufp; - - sprintf (buf, "%ld", x); - bufp = &buf[0]; - if (atof_generic (&bufp, ".", EXP_CHARS, &generic_floating_point_number)) - as_bad (_("Error converting number to floating point (Exponent overflow?)")); + return return_value; } -#endif #ifdef TEST char * @@ -703,13 +734,125 @@ print_gen (gen) sprintf (sbuf + strlen (sbuf), "%x %x %.12g\n", arr[0], arr[1], fv); if (gen) - { - generic_floating_point_number = f; - } + generic_floating_point_number = f; return (sbuf); } +#endif + +/* This is a utility function called from various tc-*.c files. It + is here in order to reduce code duplication. + + Turn a string at input_line_pointer into a floating point constant + of type TYPE (a character found in the FLT_CHARS macro), and store + it as LITTLENUMS in the bytes buffer LITP. The number of chars + emitted is stored in *SIZEP. BIG_WORDIAN is TRUE if the littlenums + should be emitted most significant littlenum first. + + An error message is returned, or a NULL pointer if everything went OK. */ + +const char * +ieee_md_atof (int type, + char *litP, + int *sizeP, + bfd_boolean big_wordian) +{ + LITTLENUM_TYPE words[MAX_LITTLENUMS]; + LITTLENUM_TYPE *wordP; + char *t; + int prec = 0; + if (strchr (FLT_CHARS, type) != NULL) + { + switch (type) + { + case 'H': + case 'h': + prec = H_PRECISION; + break; + + case 'f': + case 'F': + case 's': + case 'S': + prec = F_PRECISION; + break; + + case 'd': + case 'D': + case 'r': + case 'R': + prec = D_PRECISION; + break; + + case 't': + case 'T': + prec = X_PRECISION; + type = 'x'; /* This is what atof_ieee() understands. */ + break; + + case 'x': + case 'X': + case 'p': + case 'P': +#ifdef TC_M68K + /* Note: on the m68k there is a gap of 16 bits (one littlenum) + between the exponent and mantissa. Hence the precision is + 6 and not 5. */ + prec = P_PRECISION + 1; +#else + prec = P_PRECISION; #endif + break; + + default: + break; + } + } + /* The 'f' and 'd' types are always recognised, even if the target has + not put them into the FLT_CHARS macro. This is because the 'f' type + can come from the .dc.s, .dcb.s, .float or .single pseudo-ops and the + 'd' type from the .dc.d, .dbc.d or .double pseudo-ops. + + The 'x' type is not implicitly recognised however, even though it can + be generated by the .dc.x and .dbc.x pseudo-ops because not all targets + can support floating point values that big. ie the target has to + explicitly allow them by putting them into FLT_CHARS. */ + else if (type == 'f') + prec = F_PRECISION; + else if (type == 'd') + prec = D_PRECISION; + + if (prec == 0) + { + *sizeP = 0; + return _("Unrecognized or unsupported floating point constant"); + } + + gas_assert (prec <= MAX_LITTLENUMS); + + t = atof_ieee (input_line_pointer, type, words); + if (t) + input_line_pointer = t; + + *sizeP = prec * sizeof (LITTLENUM_TYPE); -/* end of atof-ieee.c */ + if (big_wordian) + { + for (wordP = words; prec --;) + { + md_number_to_chars (litP, (valueT) (* wordP ++), sizeof (LITTLENUM_TYPE)); + litP += sizeof (LITTLENUM_TYPE); + } + } + else + { + for (wordP = words + prec; prec --;) + { + md_number_to_chars (litP, (valueT) (* -- wordP), sizeof (LITTLENUM_TYPE)); + litP += sizeof (LITTLENUM_TYPE); + } + } + + return NULL; +}