gcc/config/dfp-bit.h

   1 /* Header file for dfp-bit.c.
   2    Copyright (C) 2005, 2006, 2007, 2008, 2009 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
  36 #ifndef LIBGCC2_WORDS_BIG_ENDIAN
  37 #define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
  38 #endif
  39
  40 #ifndef LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
  41 #define LIBGCC2_FLOAT_WORDS_BIG_ENDIAN LIBGCC2_WORDS_BIG_ENDIAN
  42 #endif
  43
  44 #ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
  45 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
  46 #endif
  47
  48 /* We need to know the size of long double that the C library supports.
  49    Don't use LIBGCC2_HAS_XF_MODE or LIBGCC2_HAS_TF_MODE here because
  50    some targets set both of those.  */
  51
  52 #define LONG_DOUBLE_HAS_XF_MODE \
  53   (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
  54
  55 #define LONG_DOUBLE_HAS_TF_MODE \
  56   (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128)
  57
  58 /* Depending on WIDTH, define a number of macros:
  59
  60    DFP_C_TYPE: type of the arguments to the libgcc functions;
  61         (eg _Decimal32)
  62
  63    IEEE_TYPE: the corresponding (encoded) IEEE754 type;
  64         (eg decimal32)
  65
  66    TO_INTERNAL: the name of the decNumber function to convert an
  67    encoded value into the decNumber internal representation;
  68
  69    TO_ENCODED: the name of the decNumber function to convert an
  70    internally represented decNumber into the encoded
  71    representation.
  72
  73    FROM_STRING: the name of the decNumber function to read an
  74    encoded value from a string.
  75
  76    TO_STRING: the name of the decNumber function to write an
  77    encoded value to a string.  */
  78
  79 #if WIDTH == 32
  80 #define DFP_C_TYPE      _Decimal32
  81 #define IEEE_TYPE       decimal32
  82 #define HOST_TO_IEEE    __host_to_ieee_32
  83 #define IEEE_TO_HOST    __ieee_to_host_32
  84 #define TO_INTERNAL     __decimal32ToNumber
  85 #define TO_ENCODED      __decimal32FromNumber
  86 #define FROM_STRING     __decimal32FromString
  87 #define TO_STRING       __decimal32ToString
  88 #elif WIDTH == 64
  89 #define DFP_C_TYPE      _Decimal64
  90 #define IEEE_TYPE       decimal64
  91 #define HOST_TO_IEEE    __host_to_ieee_64
  92 #define IEEE_TO_HOST    __ieee_to_host_64
  93 #define TO_INTERNAL     __decimal64ToNumber
  94 #define TO_ENCODED      __decimal64FromNumber
  95 #define FROM_STRING     __decimal64FromString
  96 #define TO_STRING       __decimal64ToString
  97 #elif WIDTH == 128
  98 #define DFP_C_TYPE      _Decimal128
  99 #define IEEE_TYPE       decimal128
 100 #define HOST_TO_IEEE    __host_to_ieee_128
 101 #define IEEE_TO_HOST    __ieee_to_host_128
 102 #define TO_INTERNAL     __decimal128ToNumber
 103 #define TO_ENCODED      __decimal128FromNumber
 104 #define FROM_STRING     __decimal128FromString
 105 #define TO_STRING       __decimal128ToString
 106 #else
 107 #error invalid decimal float word width
 108 #endif
 109
 110 /* We define __DEC_EVAL_METHOD__ to 2, saying that we evaluate all
 111    operations and constants to the range and precision of the _Decimal128
 112    type.  Make it so.  */
 113 #if WIDTH == 32
 114 #define CONTEXT_INIT DEC_INIT_DECIMAL32
 115 #elif WIDTH == 64
 116 #define CONTEXT_INIT DEC_INIT_DECIMAL64
 117 #elif WIDTH == 128
 118 #define CONTEXT_INIT DEC_INIT_DECIMAL128
 119 #endif
 120
 121 #ifndef DFP_INIT_ROUNDMODE
 122 #define DFP_INIT_ROUNDMODE(A) A = DEC_ROUND_HALF_EVEN
 123 #endif
 124
 125 #ifdef DFP_EXCEPTIONS_ENABLED
 126 /* Return IEEE exception flags based on decNumber status flags.  */
 127 #define DFP_IEEE_FLAGS(DEC_FLAGS) __extension__                 \
 128 ({int _fe_flags = 0;                                            \
 129   if ((dec_flags & DEC_IEEE_854_Division_by_zero) != 0)         \
 130     _fe_flags |= FE_DIVBYZERO;                                  \
 131   if ((dec_flags & DEC_IEEE_854_Inexact) != 0)                  \
 132     _fe_flags |= FE_INEXACT;                                    \
 133   if ((dec_flags & DEC_IEEE_854_Invalid_operation) != 0)        \
 134     _fe_flags |= FE_INVALID;                                    \
 135   if ((dec_flags & DEC_IEEE_854_Overflow) != 0)                 \
 136     _fe_flags |= FE_OVERFLOW;                                   \
 137   if ((dec_flags & DEC_IEEE_854_Underflow) != 0)                \
 138     _fe_flags |= FE_UNDERFLOW;                                  \
 139   _fe_flags; })
 140 #else
 141 #define DFP_EXCEPTIONS_ENABLED 0
 142 #define DFP_IEEE_FLAGS(A) 0
 143 #define DFP_HANDLE_EXCEPTIONS(A) do {} while (0)
 144 #endif
 145
 146 /* Conversions between different decimal float types use WIDTH_TO to
 147    determine additional macros to define.  */
 148
 149 #if defined (L_dd_to_sd) || defined (L_td_to_sd)
 150 #define WIDTH_TO 32
 151 #elif defined (L_sd_to_dd) || defined (L_td_to_dd)
 152 #define WIDTH_TO 64
 153 #elif defined (L_sd_to_td) || defined (L_dd_to_td)
 154 #define WIDTH_TO 128
 155 #endif
 156
 157 /* If WIDTH_TO is defined, define additional macros:
 158
 159    DFP_C_TYPE_TO: type of the result of dfp to dfp conversion.
 160
 161    IEEE_TYPE_TO: the corresponding (encoded) IEEE754 type.
 162
 163    TO_ENCODED_TO: the name of the decNumber function to convert an
 164    internally represented decNumber into the encoded representation
 165    for the destination.  */
 166
 167 #if WIDTH_TO == 32
 168 #define DFP_C_TYPE_TO   _Decimal32
 169 #define IEEE_TYPE_TO    decimal32
 170 #define TO_ENCODED_TO   __decimal32FromNumber
 171 #define IEEE_TO_HOST_TO __ieee_to_host_32
 172 #elif WIDTH_TO == 64
 173 #define DFP_C_TYPE_TO   _Decimal64
 174 #define IEEE_TYPE_TO    decimal64
 175 #define TO_ENCODED_TO   __decimal64FromNumber
 176 #define IEEE_TO_HOST_TO __ieee_to_host_64
 177 #elif WIDTH_TO == 128
 178 #define DFP_C_TYPE_TO   _Decimal128
 179 #define IEEE_TYPE_TO    decimal128
 180 #define TO_ENCODED_TO   __decimal128FromNumber
 181 #define IEEE_TO_HOST_TO __ieee_to_host_128
 182 #endif
 183
 184 /* Conversions between decimal float types and integral types use INT_KIND
 185    to determine the data type and C functions to use.  */
 186
 187 #if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si)  \
 188    || defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td)
 189 #define INT_KIND 1
 190 #elif defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
 191    || defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td)
 192 #define INT_KIND 2
 193 #elif defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
 194    || defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td)
 195 #define INT_KIND 3
 196 #elif defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi) \
 197    || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
 198 #define INT_KIND 4
 199 #endif
 200
 201 /*  If INT_KIND is defined, define additional macros:
 202
 203     INT_TYPE: The integer data type.
 204
 205     INT_FMT: The format string for writing the integer to a string.
 206
 207     CAST_FOR_FMT: Cast variable of INT_KIND to C type for sprintf.
 208     This works for ILP32 and LP64, won't for other type size systems.
 209
 210     STR_TO_INT: The function to read the integer from a string.  */
 211
 212 #if INT_KIND == 1
 213 #define INT_TYPE SItype
 214 #define INT_FMT "%d"
 215 #define CAST_FOR_FMT(A) (int)A
 216 #define STR_TO_INT strtol
 217 #elif INT_KIND == 2
 218 #define INT_TYPE DItype
 219 #define INT_FMT "%lld"
 220 #define CAST_FOR_FMT(A) (long long)A
 221 #define STR_TO_INT strtoll
 222 #elif INT_KIND == 3
 223 #define INT_TYPE USItype
 224 #define INT_FMT "%u"
 225 #define CAST_FOR_FMT(A) (unsigned int)A
 226 #define STR_TO_INT strtoul
 227 #elif INT_KIND == 4
 228 #define INT_TYPE UDItype
 229 #define INT_FMT "%llu"
 230 #define CAST_FOR_FMT(A) (unsigned long long)A
 231 #define STR_TO_INT strtoull
 232 #endif
 233
 234 /* Conversions between decimal float types and binary float types use
 235    BFP_KIND to determine the data type and C functions to use.  */
 236
 237 #if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
 238  || defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td)
 239 #define BFP_KIND 1
 240 #elif defined (L_sd_to_df) || defined (L_dd_to_df ) || defined (L_td_to_df) \
 241  ||   defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td)
 242 #define BFP_KIND 2
 243 #elif defined (L_sd_to_xf) || defined (L_dd_to_xf ) || defined (L_td_to_xf) \
 244  ||   defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)
 245 #define BFP_KIND 3
 246 #elif defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf) \
 247  ||   defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)
 248 #define BFP_KIND 4
 249 #endif
 250
 251 /*  If BFP_KIND is defined, define additional macros:
 252
 253     BFP_TYPE: The binary floating point data type.
 254
 255     BFP_FMT: The format string for writing the value to a string.
 256     The number of decimal digits printed is
 257        ceil (nbits / log2 (10.) + 1)
 258     as described in David Matula's CACM 19(3) 716-723 June 1968 paper.
 259
 260     BFP_VIA_TYPE: Type to which to cast a variable of BPF_TYPE for a
 261     call to sprintf.
 262
 263     STR_TO_BFP: The function to read the value from a string.  */
 264
 265 #if BFP_KIND == 1
 266 #define BFP_TYPE SFtype
 267 #define BFP_FMT "%.9e"
 268 #define BFP_VIA_TYPE double
 269 #define STR_TO_BFP strtof
 270
 271 #elif BFP_KIND == 2
 272 #define BFP_TYPE DFtype
 273 #define BFP_FMT "%.17e"
 274 #define BFP_VIA_TYPE double
 275 #define STR_TO_BFP strtod
 276
 277 #elif BFP_KIND == 3
 278 #if LONG_DOUBLE_HAS_XF_MODE
 279 #define BFP_TYPE XFtype
 280 #define BFP_FMT "%.21Le"
 281 #define BFP_VIA_TYPE long double
 282 #define STR_TO_BFP strtold
 283 #endif /* LONG_DOUBLE_HAS_XF_MODE */
 284
 285 #elif BFP_KIND == 4
 286 #if LONG_DOUBLE_HAS_TF_MODE
 287 #define BFP_TYPE TFtype
 288 #if LDBL_MANT_DIG == 106
 289 #define BFP_FMT "%.33Le"
 290 #elif LDBL_MANT_DIG == 113
 291 #define BFP_FMT "%.36Le"
 292 #else
 293 #error "unknown long double size, cannot define BFP_FMT"
 294 #endif /* LDBL_MANT_DIG */
 295 #define STR_TO_BFP strtold
 296 #define BFP_VIA_TYPE long double
 297 #endif /* LONG_DOUBLE_HAS_TF_MODE */
 298
 299 #endif /* BFP_KIND */
 300
 301 #if WIDTH == 128 || WIDTH_TO == 128
 302 #include "decimal128.h"
 303 #include "decQuad.h"
 304 #endif
 305 #if WIDTH == 64 || WIDTH_TO == 64
 306 #include "decimal64.h"
 307 #include "decDouble.h"
 308 #endif
 309 #if WIDTH == 32 || WIDTH_TO == 32
 310 #include "decimal32.h"
 311 #include "decSingle.h"
 312 #endif
 313 #include "decNumber.h"
 314
 315 /* Names of arithmetic functions.  */
 316
 317 #if ENABLE_DECIMAL_BID_FORMAT
 318 #define DPD_BID_NAME(DPD,BID) BID
 319 #else
 320 #define DPD_BID_NAME(DPD,BID) DPD
 321 #endif
 322
 323 #if WIDTH == 32
 324 #define DFP_ADD         DPD_BID_NAME(__dpd_addsd3,__bid_addsd3)
 325 #define DFP_SUB         DPD_BID_NAME(__dpd_subsd3,__bid_subsd3)
 326 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_mulsd3,__bid_mulsd3)
 327 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divsd3,__bid_divsd3)
 328 #define DFP_EQ          DPD_BID_NAME(__dpd_eqsd2,__bid_eqsd2)
 329 #define DFP_NE          DPD_BID_NAME(__dpd_nesd2,__bid_nesd2)
 330 #define DFP_LT          DPD_BID_NAME(__dpd_ltsd2,__bid_ltsd2)
 331 #define DFP_GT          DPD_BID_NAME(__dpd_gtsd2,__bid_gtsd2)
 332 #define DFP_LE          DPD_BID_NAME(__dpd_lesd2,__bid_lesd2)
 333 #define DFP_GE          DPD_BID_NAME(__dpd_gesd2,__bid_gesd2)
 334 #define DFP_UNORD       DPD_BID_NAME(__dpd_unordsd2,__bid_unordsd2)
 335 #elif WIDTH == 64
 336 #define DFP_ADD         DPD_BID_NAME(__dpd_adddd3,__bid_adddd3)
 337 #define DFP_SUB         DPD_BID_NAME(__dpd_subdd3,__bid_subdd3)
 338 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_muldd3,__bid_muldd3)
 339 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divdd3,__bid_divdd3)
 340 #define DFP_EQ          DPD_BID_NAME(__dpd_eqdd2,__bid_eqdd2)
 341 #define DFP_NE          DPD_BID_NAME(__dpd_nedd2,__bid_nedd2)
 342 #define DFP_LT          DPD_BID_NAME(__dpd_ltdd2,__bid_ltdd2)
 343 #define DFP_GT          DPD_BID_NAME(__dpd_gtdd2,__bid_gtdd2)
 344 #define DFP_LE          DPD_BID_NAME(__dpd_ledd2,__bid_ledd2)
 345 #define DFP_GE          DPD_BID_NAME(__dpd_gedd2,__bid_gedd2)
 346 #define DFP_UNORD       DPD_BID_NAME(__dpd_unorddd2,__bid_unorddd2)
 347 #elif WIDTH == 128
 348 #define DFP_ADD         DPD_BID_NAME(__dpd_addtd3,__bid_addtd3)
 349 #define DFP_SUB         DPD_BID_NAME(__dpd_subtd3,__bid_subtd3)
 350 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_multd3,__bid_multd3)
 351 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divtd3,__bid_divtd3)
 352 #define DFP_EQ          DPD_BID_NAME(__dpd_eqtd2,__bid_eqtd2)
 353 #define DFP_NE          DPD_BID_NAME(__dpd_netd2,__bid_netd2)
 354 #define DFP_LT          DPD_BID_NAME(__dpd_lttd2,__bid_lttd2)
 355 #define DFP_GT          DPD_BID_NAME(__dpd_gttd2,__bid_gttd2)
 356 #define DFP_LE          DPD_BID_NAME(__dpd_letd2,__bid_letd2)
 357 #define DFP_GE          DPD_BID_NAME(__dpd_getd2,__bid_getd2)
 358 #define DFP_UNORD       DPD_BID_NAME(__dpd_unordtd2,__bid_unordtd2)
 359 #endif
 360
 361 /* Names of decNumber functions for DPD arithmetic.  */
 362
 363 #if WIDTH == 32
 364 #define decFloat                decDouble
 365 #define DFP_BINARY_OP           d32_binary_op
 366 #define DFP_COMPARE_OP          d32_compare_op
 367 #define DEC_FLOAT_ADD           decDoubleAdd
 368 #define DEC_FLOAT_SUBTRACT      decDoubleSubtract
 369 #define DEC_FLOAT_MULTIPLY      decDoubleMultiply
 370 #define DEC_FLOAT_DIVIDE        decDoubleDivide
 371 #define DEC_FLOAT_COMPARE       decDoubleCompare
 372 #define DEC_FLOAT_IS_ZERO       decDoubleIsZero
 373 #define DEC_FLOAT_IS_NAN        decDoubleIsNaN
 374 #define DEC_FLOAT_IS_SIGNED     decDoubleIsSigned
 375 #elif WIDTH == 64
 376 #define DFP_BINARY_OP           dnn_binary_op
 377 #define DFP_COMPARE_OP          dnn_compare_op
 378 #define decFloat                decDouble
 379 #define DEC_FLOAT_ADD           decDoubleAdd
 380 #define DEC_FLOAT_SUBTRACT      decDoubleSubtract
 381 #define DEC_FLOAT_MULTIPLY      decDoubleMultiply
 382 #define DEC_FLOAT_DIVIDE        decDoubleDivide
 383 #define DEC_FLOAT_COMPARE       decDoubleCompare
 384 #define DEC_FLOAT_IS_ZERO       decDoubleIsZero
 385 #define DEC_FLOAT_IS_NAN        decDoubleIsNaN
 386 #define DEC_FLOAT_IS_SIGNED     decDoubleIsSigned
 387 #elif WIDTH == 128
 388 #define DFP_BINARY_OP           dnn_binary_op
 389 #define DFP_COMPARE_OP          dnn_compare_op
 390 #define decFloat                decQuad
 391 #define DEC_FLOAT_ADD           decQuadAdd
 392 #define DEC_FLOAT_SUBTRACT      decQuadSubtract
 393 #define DEC_FLOAT_MULTIPLY      decQuadMultiply
 394 #define DEC_FLOAT_DIVIDE        decQuadDivide
 395 #define DEC_FLOAT_COMPARE       decQuadCompare
 396 #define DEC_FLOAT_IS_ZERO       decQuadIsZero
 397 #define DEC_FLOAT_IS_NAN        decQuadIsNaN
 398 #define DEC_FLOAT_IS_SIGNED     decQuadIsSigned
 399 #endif
 400
 401 /* Names of functions to convert between different decimal float types.  */
 402
 403 #if WIDTH == 32
 404 #if WIDTH_TO == 64
 405 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendsddd2,__bid_extendsddd2)
 406 #elif WIDTH_TO == 128
 407 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendsdtd2,__bid_extendsdtd2)
 408 #endif
 409 #elif WIDTH == 64
 410 #if WIDTH_TO == 32
 411 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_truncddsd2,__bid_truncddsd2)
 412 #elif WIDTH_TO == 128
 413 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendddtd2,__bid_extendddtd2)
 414 #endif
 415 #elif WIDTH == 128
 416 #if WIDTH_TO == 32
 417 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_trunctdsd2,__bid_trunctdsd2)
 418 #elif WIDTH_TO == 64
 419 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_trunctddd2,__bid_trunctddd2)
 420 #endif
 421 #endif
 422
 423 /* Names of functions to convert between decimal float and integers.  */
 424
 425 #if WIDTH == 32
 426 #if INT_KIND == 1
 427 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsisd,__bid_floatsisd)
 428 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixsdsi,__bid_fixsdsi)
 429 #define DEC_FLOAT_FROM_INT decDoubleFromInt32
 430 #define DEC_FLOAT_TO_INT   decDoubleToInt32
 431 #elif INT_KIND == 2
 432 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatdisd,__bid_floatdisd)
 433 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixsddi,__bid_fixsddi)
 434 #elif INT_KIND == 3
 435 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssisd,__bid_floatunssisd)
 436 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunssdsi,__bid_fixunssdsi)
 437 #define DEC_FLOAT_FROM_INT decDoubleFromUInt32
 438 #define DEC_FLOAT_TO_INT   decDoubleToUInt32
 439 #elif INT_KIND == 4
 440 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsdisd,__bid_floatunsdisd)
 441 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunssddi,__bid_fixunssddi)
 442 #endif
 443 #elif WIDTH == 64
 444 #define decFloat        decDouble
 445 #if INT_KIND == 1
 446 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsidd,__bid_floatsidd)
 447 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixddsi,__bid_fixddsi)
 448 #define DEC_FLOAT_FROM_INT decDoubleFromInt32
 449 #define DEC_FLOAT_TO_INT   decDoubleToInt32
 450 #elif INT_KIND == 2
 451 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatdidd,__bid_floatdidd)
 452 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixdddi,__bid_fixdddi)
 453 #elif INT_KIND == 3
 454 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssidd,__bid_floatunssidd)
 455 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunsddsi,__bid_fixunsddsi)
 456 #define DEC_FLOAT_FROM_INT decDoubleFromUInt32
 457 #define DEC_FLOAT_TO_INT   decDoubleToUInt32
 458 #elif INT_KIND == 4
 459 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsdidd,__bid_floatunsdidd)
 460 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunsdddi,__bid_fixunsdddi)
 461 #endif
 462 #elif WIDTH == 128
 463 #define decFloat        decQuad
 464 #if INT_KIND == 1
 465 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsitd,__bid_floatsitd)
 466 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixtdsi,__bid_fixtdsi)
 467 #define DEC_FLOAT_FROM_INT decQuadFromInt32
 468 #define DEC_FLOAT_TO_INT   decQuadToInt32
 469 #elif INT_KIND == 2
 470 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatditd,__bid_floatditd)
 471 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixtddi,__bid_fixtddi)
 472 #elif INT_KIND == 3
 473 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssitd,__bid_floatunssitd)
 474 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunstdsi,__bid_fixunstdsi)
 475 #define DEC_FLOAT_FROM_INT decQuadFromUInt32
 476 #define DEC_FLOAT_TO_INT   decQuadToUInt32
 477 #elif INT_KIND == 4
 478 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsditd,__bid_floatunsditd)
 479 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunstddi,__bid_fixunstddi)
 480 #endif
 481 #endif
 482
 483 /* Names of functions to convert between decimal float and binary float.  */
 484
 485 #if WIDTH == 32
 486 #if BFP_KIND == 1
 487 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsfsd,__bid_extendsfsd)
 488 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncsdsf,__bid_truncsdsf)
 489 #elif BFP_KIND == 2
 490 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncdfsd,__bid_truncdfsd)
 491 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsddf,__bid_extendsddf)
 492 #elif BFP_KIND == 3
 493 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncxfsd,__bid_truncxfsd)
 494 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsdxf,__bid_extendsdxf)
 495 #elif BFP_KIND == 4
 496 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunctfsd,__bid_trunctfsd)
 497 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsdtf,__bid_extendsdtf)
 498 #endif /* BFP_KIND */
 499
 500 #elif WIDTH == 64
 501 #if BFP_KIND == 1
 502 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsfdd,__bid_extendsfdd)
 503 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncddsf,__bid_truncddsf)
 504 #elif BFP_KIND == 2
 505 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extenddfdd,__bid_extenddfdd)
 506 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncdddf,__bid_truncdddf)
 507 #elif BFP_KIND == 3
 508 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncxfdd,__bid_truncxfdd)
 509 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendddxf,__bid_extendddxf)
 510 #elif BFP_KIND == 4
 511 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunctfdd,__bid_trunctfdd)
 512 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendddtf,__bid_extendddtf)
 513 #endif /* BFP_KIND */
 514
 515 #elif WIDTH == 128
 516 #if BFP_KIND == 1
 517 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsftd,__bid_extendsftd)
 518 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdsf,__bid_trunctdsf)
 519 #elif BFP_KIND == 2
 520 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extenddftd,__bid_extenddftd)
 521 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctddf,__bid_trunctddf)
 522 #elif BFP_KIND == 3
 523 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendxftd,__bid_extendxftd)
 524 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdxf,__bid_trunctdxf)
 525 #elif BFP_KIND == 4
 526 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendtftd,__bid_extendtftd)
 527 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdtf,__bid_trunctdtf)
 528 #endif /* BFP_KIND */
 529
 530 #endif /* WIDTH */
 531
 532 /* Some handy typedefs.  */
 533
 534 typedef float SFtype __attribute__ ((mode (SF)));
 535 typedef float DFtype __attribute__ ((mode (DF)));
 536 #if LONG_DOUBLE_HAS_XF_MODE
 537 typedef float XFtype __attribute__ ((mode (XF)));
 538 #endif /* LONG_DOUBLE_HAS_XF_MODE */
 539 #if LONG_DOUBLE_HAS_TF_MODE
 540 typedef float TFtype __attribute__ ((mode (TF)));
 541 #endif /* LONG_DOUBLE_HAS_TF_MODE */
 542
 543 typedef int SItype __attribute__ ((mode (SI)));
 544 typedef int DItype __attribute__ ((mode (DI)));
 545 typedef unsigned int USItype __attribute__ ((mode (SI)));
 546 typedef unsigned int UDItype __attribute__ ((mode (DI)));
 547
 548 /* The type of the result of a decimal float comparison.  This must
 549    match `__libgcc_cmp_return__' in GCC for the target.  */
 550
 551 typedef int CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
 552
 553 /* Prototypes.  */
 554
 555 #if defined (L_mul_sd) || defined (L_mul_dd) || defined (L_mul_td)
 556 extern DFP_C_TYPE DFP_MULTIPLY (DFP_C_TYPE, DFP_C_TYPE);
 557 #endif
 558
 559 #if defined (L_div_sd) || defined (L_div_dd) || defined (L_div_td)
 560 extern DFP_C_TYPE DFP_DIVIDE (DFP_C_TYPE, DFP_C_TYPE);
 561 #endif
 562
 563 #if defined (L_addsub_sd) || defined (L_addsub_dd) || defined (L_addsub_td)
 564 extern DFP_C_TYPE DFP_ADD (DFP_C_TYPE, DFP_C_TYPE);
 565 extern DFP_C_TYPE DFP_SUB (DFP_C_TYPE, DFP_C_TYPE);
 566 #endif
 567
 568 #if defined (L_eq_sd) || defined (L_eq_dd) || defined (L_eq_td)
 569 extern CMPtype DFP_EQ (DFP_C_TYPE, DFP_C_TYPE);
 570 #endif
 571
 572 #if defined (L_ne_sd) || defined (L_ne_dd) || defined (L_ne_td)
 573 extern CMPtype DFP_NE (DFP_C_TYPE, DFP_C_TYPE);
 574 #endif
 575
 576 #if defined (L_lt_sd) || defined (L_lt_dd) || defined (L_lt_td)
 577 extern CMPtype DFP_LT (DFP_C_TYPE, DFP_C_TYPE);
 578 #endif
 579
 580 #if defined (L_gt_sd) || defined (L_gt_dd) || defined (L_gt_td)
 581 extern CMPtype DFP_GT (DFP_C_TYPE, DFP_C_TYPE);
 582 #endif
 583
 584 #if defined (L_le_sd) || defined (L_le_dd) || defined (L_le_td)
 585 extern CMPtype DFP_LE (DFP_C_TYPE, DFP_C_TYPE);
 586 #endif
 587
 588 #if defined (L_ge_sd) || defined (L_ge_dd) || defined (L_ge_td)
 589 extern CMPtype DFP_GE (DFP_C_TYPE, DFP_C_TYPE);
 590 #endif
 591
 592 #if defined (L_unord_sd) || defined (L_unord_dd) || defined (L_unord_td)
 593 extern CMPtype DFP_UNORD (DFP_C_TYPE, DFP_C_TYPE);
 594 #endif
 595
 596 #if defined (L_sd_to_dd) || defined (L_sd_to_td) || defined (L_dd_to_sd) \
 597  || defined (L_dd_to_td) || defined (L_td_to_sd) || defined (L_td_to_dd)
 598 extern DFP_C_TYPE_TO DFP_TO_DFP (DFP_C_TYPE);
 599 #endif
 600
 601 #if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \
 602  || defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
 603  || defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
 604  || defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi)
 605 extern INT_TYPE DFP_TO_INT (DFP_C_TYPE);
 606 #endif
 607
 608 #if defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td) \
 609  || defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td) \
 610  || defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td) \
 611  || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
 612 extern DFP_C_TYPE INT_TO_DFP (INT_TYPE);
 613 #endif
 614
 615 #if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
 616  || defined (L_sd_to_df) || defined (L_dd_to_df) || defined (L_td_to_df) \
 617  || ((defined (L_sd_to_xf) || defined (L_dd_to_xf) || defined (L_td_to_xf)) \
 618      && LONG_DOUBLE_HAS_XF_MODE) \
 619  || ((defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf)) \
 620      && LONG_DOUBLE_HAS_TF_MODE)
 621 extern BFP_TYPE DFP_TO_BFP (DFP_C_TYPE);
 622 #endif
 623
 624 #if defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td) \
 625  || defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td) \
 626  || ((defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)) \
 627      && LONG_DOUBLE_HAS_XF_MODE) \
 628  || ((defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)) \
 629      && LONG_DOUBLE_HAS_TF_MODE)
 630 extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE);
 631 #endif
 632
 633 #endif /* _DFPBIT_H */