libgcc/dfp-bit.h

   1 /* Header file for dfp-bit.c.
   2    Copyright (C) 2005-2018 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 Under Section 7 of GPL version 3, you are granted additional
  17 permissions described in the GCC Runtime Library Exception, version
  18 3.1, as published by the Free Software Foundation.
  19
  20 You should have received a copy of the GNU General Public License and
  21 a copy of the GCC Runtime Library Exception along with this program;
  22 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 <http://www.gnu.org/licenses/>.  */
  24
  25 #ifndef _DFPBIT_H
  26 #define _DFPBIT_H
  27
  28 #include <float.h>
  29 #include <fenv.h>
  30 #include <decRound.h>
  31 #include <decExcept.h>
  32 #include "tconfig.h"
  33 #include "coretypes.h"
  34 #include "tm.h"
  35 #include "libgcc_tm.h"
  36
  37 /* We need to know the size of long double that the C library supports.
  38    Don't use LIBGCC2_HAS_XF_MODE or LIBGCC2_HAS_TF_MODE here because
  39    some targets set both of those.  */
  40
  41 #ifndef __LIBGCC_XF_MANT_DIG__
  42 #define __LIBGCC_XF_MANT_DIG__ 0
  43 #endif
  44 #define LONG_DOUBLE_HAS_XF_MODE \
  45   (__LDBL_MANT_DIG__ == __LIBGCC_XF_MANT_DIG__)
  46
  47 #ifndef __LIBGCC_TF_MANT_DIG__
  48 #define __LIBGCC_TF_MANT_DIG__ 0
  49 #endif
  50 #define LONG_DOUBLE_HAS_TF_MODE \
  51   (__LDBL_MANT_DIG__ == __LIBGCC_TF_MANT_DIG__)
  52
  53 /* Depending on WIDTH, define a number of macros:
  54
  55    DFP_C_TYPE: type of the arguments to the libgcc functions;
  56         (eg _Decimal32)
  57
  58    IEEE_TYPE: the corresponding (encoded) IEEE754 type;
  59         (eg decimal32)
  60
  61    TO_INTERNAL: the name of the decNumber function to convert an
  62    encoded value into the decNumber internal representation;
  63
  64    TO_ENCODED: the name of the decNumber function to convert an
  65    internally represented decNumber into the encoded
  66    representation.
  67
  68    FROM_STRING: the name of the decNumber function to read an
  69    encoded value from a string.
  70
  71    TO_STRING: the name of the decNumber function to write an
  72    encoded value to a string.  */
  73
  74 #if WIDTH == 32
  75 #define DFP_C_TYPE      _Decimal32
  76 #define IEEE_TYPE       decimal32
  77 #define HOST_TO_IEEE    __host_to_ieee_32
  78 #define IEEE_TO_HOST    __ieee_to_host_32
  79 #define TO_INTERNAL     __decimal32ToNumber
  80 #define TO_ENCODED      __decimal32FromNumber
  81 #define FROM_STRING     __decimal32FromString
  82 #define TO_STRING       __decimal32ToString
  83 #elif WIDTH == 64
  84 #define DFP_C_TYPE      _Decimal64
  85 #define IEEE_TYPE       decimal64
  86 #define HOST_TO_IEEE    __host_to_ieee_64
  87 #define IEEE_TO_HOST    __ieee_to_host_64
  88 #define TO_INTERNAL     __decimal64ToNumber
  89 #define TO_ENCODED      __decimal64FromNumber
  90 #define FROM_STRING     __decimal64FromString
  91 #define TO_STRING       __decimal64ToString
  92 #elif WIDTH == 128
  93 #define DFP_C_TYPE      _Decimal128
  94 #define IEEE_TYPE       decimal128
  95 #define HOST_TO_IEEE    __host_to_ieee_128
  96 #define IEEE_TO_HOST    __ieee_to_host_128
  97 #define TO_INTERNAL     __decimal128ToNumber
  98 #define TO_ENCODED      __decimal128FromNumber
  99 #define FROM_STRING     __decimal128FromString
 100 #define TO_STRING       __decimal128ToString
 101 #else
 102 #error invalid decimal float word width
 103 #endif
 104
 105 /* We define __DEC_EVAL_METHOD__ to 2, saying that we evaluate all
 106    operations and constants to the range and precision of the _Decimal128
 107    type.  Make it so.  */
 108 #if WIDTH == 32
 109 #define CONTEXT_INIT DEC_INIT_DECIMAL32
 110 #elif WIDTH == 64
 111 #define CONTEXT_INIT DEC_INIT_DECIMAL64
 112 #elif WIDTH == 128
 113 #define CONTEXT_INIT DEC_INIT_DECIMAL128
 114 #endif
 115
 116 #ifndef DFP_INIT_ROUNDMODE
 117 #define DFP_INIT_ROUNDMODE(A) A = DEC_ROUND_HALF_EVEN
 118 #endif
 119
 120 #ifdef DFP_EXCEPTIONS_ENABLED
 121 /* Return IEEE exception flags based on decNumber status flags.  */
 122 #define DFP_IEEE_FLAGS(DEC_FLAGS) __extension__                 \
 123 ({int _fe_flags = 0;                                            \
 124   if ((dec_flags & DEC_IEEE_854_Division_by_zero) != 0)         \
 125     _fe_flags |= FE_DIVBYZERO;                                  \
 126   if ((dec_flags & DEC_IEEE_854_Inexact) != 0)                  \
 127     _fe_flags |= FE_INEXACT;                                    \
 128   if ((dec_flags & DEC_IEEE_854_Invalid_operation) != 0)        \
 129     _fe_flags |= FE_INVALID;                                    \
 130   if ((dec_flags & DEC_IEEE_854_Overflow) != 0)                 \
 131     _fe_flags |= FE_OVERFLOW;                                   \
 132   if ((dec_flags & DEC_IEEE_854_Underflow) != 0)                \
 133     _fe_flags |= FE_UNDERFLOW;                                  \
 134   _fe_flags; })
 135 #else
 136 #define DFP_EXCEPTIONS_ENABLED 0
 137 #define DFP_IEEE_FLAGS(A) 0
 138 #define DFP_HANDLE_EXCEPTIONS(A) do {} while (0)
 139 #endif
 140
 141 /* Conversions between different decimal float types use WIDTH_TO to
 142    determine additional macros to define.  */
 143
 144 #if defined (L_dd_to_sd) || defined (L_td_to_sd)
 145 #define WIDTH_TO 32
 146 #elif defined (L_sd_to_dd) || defined (L_td_to_dd)
 147 #define WIDTH_TO 64
 148 #elif defined (L_sd_to_td) || defined (L_dd_to_td)
 149 #define WIDTH_TO 128
 150 #endif
 151
 152 /* If WIDTH_TO is defined, define additional macros:
 153
 154    DFP_C_TYPE_TO: type of the result of dfp to dfp conversion.
 155
 156    IEEE_TYPE_TO: the corresponding (encoded) IEEE754 type.
 157
 158    TO_ENCODED_TO: the name of the decNumber function to convert an
 159    internally represented decNumber into the encoded representation
 160    for the destination.  */
 161
 162 #if WIDTH_TO == 32
 163 #define DFP_C_TYPE_TO   _Decimal32
 164 #define IEEE_TYPE_TO    decimal32
 165 #define TO_ENCODED_TO   __decimal32FromNumber
 166 #define IEEE_TO_HOST_TO __ieee_to_host_32
 167 #elif WIDTH_TO == 64
 168 #define DFP_C_TYPE_TO   _Decimal64
 169 #define IEEE_TYPE_TO    decimal64
 170 #define TO_ENCODED_TO   __decimal64FromNumber
 171 #define IEEE_TO_HOST_TO __ieee_to_host_64
 172 #elif WIDTH_TO == 128
 173 #define DFP_C_TYPE_TO   _Decimal128
 174 #define IEEE_TYPE_TO    decimal128
 175 #define TO_ENCODED_TO   __decimal128FromNumber
 176 #define IEEE_TO_HOST_TO __ieee_to_host_128
 177 #endif
 178
 179 /* Conversions between decimal float types and integral types use INT_KIND
 180    to determine the data type and C functions to use.  */
 181
 182 #if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si)  \
 183    || defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td)
 184 #define INT_KIND 1
 185 #elif defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
 186    || defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td)
 187 #define INT_KIND 2
 188 #elif defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
 189    || defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td)
 190 #define INT_KIND 3
 191 #elif defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi) \
 192    || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
 193 #define INT_KIND 4
 194 #endif
 195
 196 /*  If INT_KIND is defined, define additional macros:
 197
 198     INT_TYPE: The integer data type.
 199
 200     INT_FMT: The format string for writing the integer to a string.
 201
 202     CAST_FOR_FMT: Cast variable of INT_KIND to C type for sprintf.
 203     This works for ILP32 and LP64, won't for other type size systems.
 204
 205     STR_TO_INT: The function to read the integer from a string.  */
 206
 207 #if INT_KIND == 1
 208 #define INT_TYPE SItype
 209 #define INT_FMT "%d"
 210 #define CAST_FOR_FMT(A) (int)A
 211 #define STR_TO_INT strtol
 212 #elif INT_KIND == 2
 213 #define INT_TYPE DItype
 214 #define INT_FMT "%lld"
 215 #define CAST_FOR_FMT(A) (long long)A
 216 #define STR_TO_INT strtoll
 217 #elif INT_KIND == 3
 218 #define INT_TYPE USItype
 219 #define INT_FMT "%u"
 220 #define CAST_FOR_FMT(A) (unsigned int)A
 221 #define STR_TO_INT strtoul
 222 #elif INT_KIND == 4
 223 #define INT_TYPE UDItype
 224 #define INT_FMT "%llu"
 225 #define CAST_FOR_FMT(A) (unsigned long long)A
 226 #define STR_TO_INT strtoull
 227 #endif
 228
 229 /* Conversions between decimal float types and binary float types use
 230    BFP_KIND to determine the data type and C functions to use.  */
 231
 232 #if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
 233  || defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td)
 234 #define BFP_KIND 1
 235 #elif defined (L_sd_to_df) || defined (L_dd_to_df ) || defined (L_td_to_df) \
 236  ||   defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td)
 237 #define BFP_KIND 2
 238 #elif defined (L_sd_to_xf) || defined (L_dd_to_xf ) || defined (L_td_to_xf) \
 239  ||   defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)
 240 #define BFP_KIND 3
 241 #elif defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf) \
 242  ||   defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)
 243 #define BFP_KIND 4
 244 #endif
 245
 246 /*  If BFP_KIND is defined, define additional macros:
 247
 248     BFP_TYPE: The binary floating point data type.
 249
 250     BFP_FMT: The format string for writing the value to a string.
 251     The number of decimal digits printed is
 252        ceil (nbits / log2 (10.) + 1)
 253     as described in David Matula's CACM 19(3) 716-723 June 1968 paper.
 254
 255     BFP_VIA_TYPE: Type to which to cast a variable of BPF_TYPE for a
 256     call to sprintf.
 257
 258     STR_TO_BFP: The function to read the value from a string.  */
 259
 260 #if BFP_KIND == 1
 261 #define BFP_TYPE SFtype
 262 #define BFP_FMT "%.9e"
 263 #define BFP_VIA_TYPE double
 264 #define STR_TO_BFP strtof
 265
 266 #elif BFP_KIND == 2
 267 #define BFP_TYPE DFtype
 268 #define BFP_FMT "%.17e"
 269 #define BFP_VIA_TYPE double
 270 #define STR_TO_BFP strtod
 271
 272 #elif BFP_KIND == 3
 273 #if LONG_DOUBLE_HAS_XF_MODE
 274 #define BFP_TYPE XFtype
 275 #define BFP_FMT "%.21Le"
 276 #define BFP_VIA_TYPE long double
 277 #define STR_TO_BFP strtold
 278 #endif /* LONG_DOUBLE_HAS_XF_MODE */
 279
 280 #elif BFP_KIND == 4
 281 #if LONG_DOUBLE_HAS_TF_MODE
 282 #define BFP_TYPE TFtype
 283 #if LDBL_MANT_DIG == 106
 284 #define BFP_FMT "%.33Le"
 285 #elif LDBL_MANT_DIG == 113
 286 #define BFP_FMT "%.36Le"
 287 #else
 288 #error "unknown long double size, cannot define BFP_FMT"
 289 #endif /* LDBL_MANT_DIG */
 290 #define STR_TO_BFP strtold
 291 #define BFP_VIA_TYPE long double
 292 #endif /* LONG_DOUBLE_HAS_TF_MODE */
 293
 294 #endif /* BFP_KIND */
 295
 296 #if WIDTH == 128 || WIDTH_TO == 128
 297 #include "decimal128.h"
 298 #include "decQuad.h"
 299 #endif
 300 #if WIDTH == 64 || WIDTH_TO == 64
 301 #include "decimal64.h"
 302 #include "decDouble.h"
 303 #endif
 304 #if WIDTH == 32 || WIDTH_TO == 32
 305 #include "decimal32.h"
 306 #include "decSingle.h"
 307 #endif
 308 #include "decNumber.h"
 309
 310 /* Names of arithmetic functions.  */
 311
 312 #if ENABLE_DECIMAL_BID_FORMAT
 313 #define DPD_BID_NAME(DPD,BID) BID
 314 #else
 315 #define DPD_BID_NAME(DPD,BID) DPD
 316 #endif
 317
 318 #if WIDTH == 32
 319 #define DFP_ADD         DPD_BID_NAME(__dpd_addsd3,__bid_addsd3)
 320 #define DFP_SUB         DPD_BID_NAME(__dpd_subsd3,__bid_subsd3)
 321 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_mulsd3,__bid_mulsd3)
 322 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divsd3,__bid_divsd3)
 323 #define DFP_EQ          DPD_BID_NAME(__dpd_eqsd2,__bid_eqsd2)
 324 #define DFP_NE          DPD_BID_NAME(__dpd_nesd2,__bid_nesd2)
 325 #define DFP_LT          DPD_BID_NAME(__dpd_ltsd2,__bid_ltsd2)
 326 #define DFP_GT          DPD_BID_NAME(__dpd_gtsd2,__bid_gtsd2)
 327 #define DFP_LE          DPD_BID_NAME(__dpd_lesd2,__bid_lesd2)
 328 #define DFP_GE          DPD_BID_NAME(__dpd_gesd2,__bid_gesd2)
 329 #define DFP_UNORD       DPD_BID_NAME(__dpd_unordsd2,__bid_unordsd2)
 330 #elif WIDTH == 64
 331 #define DFP_ADD         DPD_BID_NAME(__dpd_adddd3,__bid_adddd3)
 332 #define DFP_SUB         DPD_BID_NAME(__dpd_subdd3,__bid_subdd3)
 333 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_muldd3,__bid_muldd3)
 334 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divdd3,__bid_divdd3)
 335 #define DFP_EQ          DPD_BID_NAME(__dpd_eqdd2,__bid_eqdd2)
 336 #define DFP_NE          DPD_BID_NAME(__dpd_nedd2,__bid_nedd2)
 337 #define DFP_LT          DPD_BID_NAME(__dpd_ltdd2,__bid_ltdd2)
 338 #define DFP_GT          DPD_BID_NAME(__dpd_gtdd2,__bid_gtdd2)
 339 #define DFP_LE          DPD_BID_NAME(__dpd_ledd2,__bid_ledd2)
 340 #define DFP_GE          DPD_BID_NAME(__dpd_gedd2,__bid_gedd2)
 341 #define DFP_UNORD       DPD_BID_NAME(__dpd_unorddd2,__bid_unorddd2)
 342 #elif WIDTH == 128
 343 #define DFP_ADD         DPD_BID_NAME(__dpd_addtd3,__bid_addtd3)
 344 #define DFP_SUB         DPD_BID_NAME(__dpd_subtd3,__bid_subtd3)
 345 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_multd3,__bid_multd3)
 346 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divtd3,__bid_divtd3)
 347 #define DFP_EQ          DPD_BID_NAME(__dpd_eqtd2,__bid_eqtd2)
 348 #define DFP_NE          DPD_BID_NAME(__dpd_netd2,__bid_netd2)
 349 #define DFP_LT          DPD_BID_NAME(__dpd_lttd2,__bid_lttd2)
 350 #define DFP_GT          DPD_BID_NAME(__dpd_gttd2,__bid_gttd2)
 351 #define DFP_LE          DPD_BID_NAME(__dpd_letd2,__bid_letd2)
 352 #define DFP_GE          DPD_BID_NAME(__dpd_getd2,__bid_getd2)
 353 #define DFP_UNORD       DPD_BID_NAME(__dpd_unordtd2,__bid_unordtd2)
 354 #endif
 355
 356 /* Names of decNumber functions for DPD arithmetic.  */
 357
 358 #if WIDTH == 32
 359 #define decFloat                decDouble
 360 #define DFP_BINARY_OP           d32_binary_op
 361 #define DFP_COMPARE_OP          d32_compare_op
 362 #define DEC_FLOAT_ADD           decDoubleAdd
 363 #define DEC_FLOAT_SUBTRACT      decDoubleSubtract
 364 #define DEC_FLOAT_MULTIPLY      decDoubleMultiply
 365 #define DEC_FLOAT_DIVIDE        decDoubleDivide
 366 #define DEC_FLOAT_COMPARE       decDoubleCompare
 367 #define DEC_FLOAT_IS_ZERO       decDoubleIsZero
 368 #define DEC_FLOAT_IS_NAN        decDoubleIsNaN
 369 #define DEC_FLOAT_IS_SIGNED     decDoubleIsSigned
 370 #elif WIDTH == 64
 371 #define DFP_BINARY_OP           dnn_binary_op
 372 #define DFP_COMPARE_OP          dnn_compare_op
 373 #define decFloat                decDouble
 374 #define DEC_FLOAT_ADD           decDoubleAdd
 375 #define DEC_FLOAT_SUBTRACT      decDoubleSubtract
 376 #define DEC_FLOAT_MULTIPLY      decDoubleMultiply
 377 #define DEC_FLOAT_DIVIDE        decDoubleDivide
 378 #define DEC_FLOAT_COMPARE       decDoubleCompare
 379 #define DEC_FLOAT_IS_ZERO       decDoubleIsZero
 380 #define DEC_FLOAT_IS_NAN        decDoubleIsNaN
 381 #define DEC_FLOAT_IS_SIGNED     decDoubleIsSigned
 382 #elif WIDTH == 128
 383 #define DFP_BINARY_OP           dnn_binary_op
 384 #define DFP_COMPARE_OP          dnn_compare_op
 385 #define decFloat                decQuad
 386 #define DEC_FLOAT_ADD           decQuadAdd
 387 #define DEC_FLOAT_SUBTRACT      decQuadSubtract
 388 #define DEC_FLOAT_MULTIPLY      decQuadMultiply
 389 #define DEC_FLOAT_DIVIDE        decQuadDivide
 390 #define DEC_FLOAT_COMPARE       decQuadCompare
 391 #define DEC_FLOAT_IS_ZERO       decQuadIsZero
 392 #define DEC_FLOAT_IS_NAN        decQuadIsNaN
 393 #define DEC_FLOAT_IS_SIGNED     decQuadIsSigned
 394 #endif
 395
 396 /* Names of functions to convert between different decimal float types.  */
 397
 398 #if WIDTH == 32
 399 #if WIDTH_TO == 64
 400 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendsddd2,__bid_extendsddd2)
 401 #elif WIDTH_TO == 128
 402 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendsdtd2,__bid_extendsdtd2)
 403 #endif
 404 #elif WIDTH == 64
 405 #if WIDTH_TO == 32
 406 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_truncddsd2,__bid_truncddsd2)
 407 #elif WIDTH_TO == 128
 408 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendddtd2,__bid_extendddtd2)
 409 #endif
 410 #elif WIDTH == 128
 411 #if WIDTH_TO == 32
 412 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_trunctdsd2,__bid_trunctdsd2)
 413 #elif WIDTH_TO == 64
 414 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_trunctddd2,__bid_trunctddd2)
 415 #endif
 416 #endif
 417
 418 /* Names of functions to convert between decimal float and integers.  */
 419
 420 #if WIDTH == 32
 421 #if INT_KIND == 1
 422 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsisd,__bid_floatsisd)
 423 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixsdsi,__bid_fixsdsi)
 424 #define DEC_FLOAT_FROM_INT decDoubleFromInt32
 425 #define DEC_FLOAT_TO_INT   decDoubleToInt32
 426 #elif INT_KIND == 2
 427 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatdisd,__bid_floatdisd)
 428 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixsddi,__bid_fixsddi)
 429 #elif INT_KIND == 3
 430 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssisd,__bid_floatunssisd)
 431 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunssdsi,__bid_fixunssdsi)
 432 #define DEC_FLOAT_FROM_INT decDoubleFromUInt32
 433 #define DEC_FLOAT_TO_INT   decDoubleToUInt32
 434 #elif INT_KIND == 4
 435 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsdisd,__bid_floatunsdisd)
 436 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunssddi,__bid_fixunssddi)
 437 #endif
 438 #elif WIDTH == 64
 439 #define decFloat        decDouble
 440 #if INT_KIND == 1
 441 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsidd,__bid_floatsidd)
 442 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixddsi,__bid_fixddsi)
 443 #define DEC_FLOAT_FROM_INT decDoubleFromInt32
 444 #define DEC_FLOAT_TO_INT   decDoubleToInt32
 445 #elif INT_KIND == 2
 446 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatdidd,__bid_floatdidd)
 447 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixdddi,__bid_fixdddi)
 448 #elif INT_KIND == 3
 449 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssidd,__bid_floatunssidd)
 450 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunsddsi,__bid_fixunsddsi)
 451 #define DEC_FLOAT_FROM_INT decDoubleFromUInt32
 452 #define DEC_FLOAT_TO_INT   decDoubleToUInt32
 453 #elif INT_KIND == 4
 454 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsdidd,__bid_floatunsdidd)
 455 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunsdddi,__bid_fixunsdddi)
 456 #endif
 457 #elif WIDTH == 128
 458 #define decFloat        decQuad
 459 #if INT_KIND == 1
 460 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsitd,__bid_floatsitd)
 461 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixtdsi,__bid_fixtdsi)
 462 #define DEC_FLOAT_FROM_INT decQuadFromInt32
 463 #define DEC_FLOAT_TO_INT   decQuadToInt32
 464 #elif INT_KIND == 2
 465 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatditd,__bid_floatditd)
 466 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixtddi,__bid_fixtddi)
 467 #elif INT_KIND == 3
 468 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssitd,__bid_floatunssitd)
 469 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunstdsi,__bid_fixunstdsi)
 470 #define DEC_FLOAT_FROM_INT decQuadFromUInt32
 471 #define DEC_FLOAT_TO_INT   decQuadToUInt32
 472 #elif INT_KIND == 4
 473 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsditd,__bid_floatunsditd)
 474 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunstddi,__bid_fixunstddi)
 475 #endif
 476 #endif
 477
 478 /* Names of functions to convert between decimal float and binary float.  */
 479
 480 #if WIDTH == 32
 481 #if BFP_KIND == 1
 482 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsfsd,__bid_extendsfsd)
 483 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncsdsf,__bid_truncsdsf)
 484 #elif BFP_KIND == 2
 485 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncdfsd,__bid_truncdfsd)
 486 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsddf,__bid_extendsddf)
 487 #elif BFP_KIND == 3
 488 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncxfsd,__bid_truncxfsd)
 489 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsdxf,__bid_extendsdxf)
 490 #elif BFP_KIND == 4
 491 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunctfsd,__bid_trunctfsd)
 492 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsdtf,__bid_extendsdtf)
 493 #endif /* BFP_KIND */
 494
 495 #elif WIDTH == 64
 496 #if BFP_KIND == 1
 497 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsfdd,__bid_extendsfdd)
 498 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncddsf,__bid_truncddsf)
 499 #elif BFP_KIND == 2
 500 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extenddfdd,__bid_extenddfdd)
 501 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncdddf,__bid_truncdddf)
 502 #elif BFP_KIND == 3
 503 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncxfdd,__bid_truncxfdd)
 504 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendddxf,__bid_extendddxf)
 505 #elif BFP_KIND == 4
 506 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunctfdd,__bid_trunctfdd)
 507 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendddtf,__bid_extendddtf)
 508 #endif /* BFP_KIND */
 509
 510 #elif WIDTH == 128
 511 #if BFP_KIND == 1
 512 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsftd,__bid_extendsftd)
 513 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdsf,__bid_trunctdsf)
 514 #elif BFP_KIND == 2
 515 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extenddftd,__bid_extenddftd)
 516 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctddf,__bid_trunctddf)
 517 #elif BFP_KIND == 3
 518 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendxftd,__bid_extendxftd)
 519 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdxf,__bid_trunctdxf)
 520 #elif BFP_KIND == 4
 521 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendtftd,__bid_extendtftd)
 522 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdtf,__bid_trunctdtf)
 523 #endif /* BFP_KIND */
 524
 525 #endif /* WIDTH */
 526
 527 /* Some handy typedefs.  */
 528
 529 typedef float SFtype __attribute__ ((mode (SF)));
 530 typedef float DFtype __attribute__ ((mode (DF)));
 531 #if LONG_DOUBLE_HAS_XF_MODE
 532 typedef float XFtype __attribute__ ((mode (XF)));
 533 #endif /* LONG_DOUBLE_HAS_XF_MODE */
 534 #if LONG_DOUBLE_HAS_TF_MODE
 535 typedef float TFtype __attribute__ ((mode (TF)));
 536 #endif /* LONG_DOUBLE_HAS_TF_MODE */
 537
 538 typedef int SItype __attribute__ ((mode (SI)));
 539 typedef int DItype __attribute__ ((mode (DI)));
 540 typedef unsigned int USItype __attribute__ ((mode (SI)));
 541 typedef unsigned int UDItype __attribute__ ((mode (DI)));
 542
 543 /* The type of the result of a decimal float comparison.  This must
 544    match `__libgcc_cmp_return__' in GCC for the target.  */
 545
 546 typedef int CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
 547
 548 /* Prototypes.  */
 549
 550 #if defined (L_mul_sd) || defined (L_mul_dd) || defined (L_mul_td)
 551 extern DFP_C_TYPE DFP_MULTIPLY (DFP_C_TYPE, DFP_C_TYPE);
 552 #endif
 553
 554 #if defined (L_div_sd) || defined (L_div_dd) || defined (L_div_td)
 555 extern DFP_C_TYPE DFP_DIVIDE (DFP_C_TYPE, DFP_C_TYPE);
 556 #endif
 557
 558 #if defined (L_addsub_sd) || defined (L_addsub_dd) || defined (L_addsub_td)
 559 extern DFP_C_TYPE DFP_ADD (DFP_C_TYPE, DFP_C_TYPE);
 560 extern DFP_C_TYPE DFP_SUB (DFP_C_TYPE, DFP_C_TYPE);
 561 #endif
 562
 563 #if defined (L_eq_sd) || defined (L_eq_dd) || defined (L_eq_td)
 564 extern CMPtype DFP_EQ (DFP_C_TYPE, DFP_C_TYPE);
 565 #endif
 566
 567 #if defined (L_ne_sd) || defined (L_ne_dd) || defined (L_ne_td)
 568 extern CMPtype DFP_NE (DFP_C_TYPE, DFP_C_TYPE);
 569 #endif
 570
 571 #if defined (L_lt_sd) || defined (L_lt_dd) || defined (L_lt_td)
 572 extern CMPtype DFP_LT (DFP_C_TYPE, DFP_C_TYPE);
 573 #endif
 574
 575 #if defined (L_gt_sd) || defined (L_gt_dd) || defined (L_gt_td)
 576 extern CMPtype DFP_GT (DFP_C_TYPE, DFP_C_TYPE);
 577 #endif
 578
 579 #if defined (L_le_sd) || defined (L_le_dd) || defined (L_le_td)
 580 extern CMPtype DFP_LE (DFP_C_TYPE, DFP_C_TYPE);
 581 #endif
 582
 583 #if defined (L_ge_sd) || defined (L_ge_dd) || defined (L_ge_td)
 584 extern CMPtype DFP_GE (DFP_C_TYPE, DFP_C_TYPE);
 585 #endif
 586
 587 #if defined (L_unord_sd) || defined (L_unord_dd) || defined (L_unord_td)
 588 extern CMPtype DFP_UNORD (DFP_C_TYPE, DFP_C_TYPE);
 589 #endif
 590
 591 #if defined (L_sd_to_dd) || defined (L_sd_to_td) || defined (L_dd_to_sd) \
 592  || defined (L_dd_to_td) || defined (L_td_to_sd) || defined (L_td_to_dd)
 593 extern DFP_C_TYPE_TO DFP_TO_DFP (DFP_C_TYPE);
 594 #endif
 595
 596 #if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \
 597  || defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
 598  || defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
 599  || defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi)
 600 extern INT_TYPE DFP_TO_INT (DFP_C_TYPE);
 601 #endif
 602
 603 #if defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td) \
 604  || defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td) \
 605  || defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td) \
 606  || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
 607 extern DFP_C_TYPE INT_TO_DFP (INT_TYPE);
 608 #endif
 609
 610 #if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
 611  || defined (L_sd_to_df) || defined (L_dd_to_df) || defined (L_td_to_df) \
 612  || ((defined (L_sd_to_xf) || defined (L_dd_to_xf) || defined (L_td_to_xf)) \
 613      && LONG_DOUBLE_HAS_XF_MODE) \
 614  || ((defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf)) \
 615      && LONG_DOUBLE_HAS_TF_MODE)
 616 extern BFP_TYPE DFP_TO_BFP (DFP_C_TYPE);
 617 #endif
 618
 619 #if defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td) \
 620  || defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td) \
 621  || ((defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)) \
 622      && LONG_DOUBLE_HAS_XF_MODE) \
 623  || ((defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)) \
 624      && LONG_DOUBLE_HAS_TF_MODE)
 625 extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE);
 626 #endif
 627
 628 #endif /* _DFPBIT_H */