libgcc/dfp-bit.h

   1 /* Header file for dfp-bit.c.
   2    Copyright (C) 2005-2023 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 #elif defined (L_sd_to_kf) || defined (L_dd_to_kf) || defined (L_td_to_kf) \
 245  ||   defined (L_kf_to_sd) || defined (L_kf_to_dd) || defined (L_kf_to_td)
 246 #define BFP_KIND 5
 247 #endif
 248
 249 /*  If BFP_KIND is defined, define additional macros:
 250
 251     BFP_TYPE: The binary floating point data type.
 252
 253     BFP_FMT: The format string for writing the value to a string.
 254     The number of decimal digits printed is
 255        ceil (nbits / log2 (10.) + 1)
 256     as described in David Matula's CACM 19(3) 716-723 June 1968 paper.
 257
 258     BFP_VIA_TYPE: Type to which to cast a variable of BPF_TYPE for a
 259     call to sprintf.
 260
 261     STR_TO_BFP: The function to read the value from a string.  */
 262
 263 #if BFP_KIND == 1
 264 #define BFP_TYPE SFtype
 265 #define BFP_FMT "%.9e"
 266 #define BFP_VIA_TYPE double
 267 #define STR_TO_BFP strtof
 268
 269 #elif BFP_KIND == 2
 270 #define BFP_TYPE DFtype
 271 #define BFP_FMT "%.17e"
 272 #define BFP_VIA_TYPE double
 273 #define STR_TO_BFP strtod
 274
 275 #elif BFP_KIND == 3
 276 #if LONG_DOUBLE_HAS_XF_MODE
 277 #define BFP_TYPE XFtype
 278 #define BFP_FMT "%.21Le"
 279 #define BFP_VIA_TYPE long double
 280 #define STR_TO_BFP strtold
 281 #endif /* LONG_DOUBLE_HAS_XF_MODE */
 282
 283 #elif BFP_KIND == 4
 284 #if LONG_DOUBLE_HAS_TF_MODE
 285 #define BFP_TYPE TFtype
 286 #if LDBL_MANT_DIG == 106
 287 #define BFP_FMT "%.33Le"
 288 #elif LDBL_MANT_DIG == 113
 289 #define BFP_FMT "%.36Le"
 290 #else
 291 #error "unknown long double size, cannot define BFP_FMT"
 292 #endif /* LDBL_MANT_DIG */
 293 #define STR_TO_BFP strtold
 294 #define BFP_VIA_TYPE long double
 295 #endif /* LONG_DOUBLE_HAS_TF_MODE */
 296
 297 #elif BFP_KIND == 5
 298 #define BFP_TYPE _Float128
 299 #define BFP_FMT "%.36Le"
 300 #define BFP_VIA_TYPE _Float128
 301 #define STR_TO_BFP __strtoieee128
 302 extern _Float128 __strtoieee128 (const char *, char **);
 303
 304 #endif /* BFP_KIND */
 305
 306 #if WIDTH == 128 || WIDTH_TO == 128
 307 #include "decimal128.h"
 308 #include "decQuad.h"
 309 #endif
 310 #if WIDTH == 64 || WIDTH_TO == 64
 311 #include "decimal64.h"
 312 #include "decDouble.h"
 313 #endif
 314 #if WIDTH == 32 || WIDTH_TO == 32
 315 #include "decimal32.h"
 316 #include "decSingle.h"
 317 #endif
 318 #include "decNumber.h"
 319
 320 /* Names of arithmetic functions.  */
 321
 322 #if ENABLE_DECIMAL_BID_FORMAT
 323 #define DPD_BID_NAME(DPD,BID) BID
 324 #else
 325 #define DPD_BID_NAME(DPD,BID) DPD
 326 #endif
 327
 328 #if WIDTH == 32
 329 #define DFP_ADD         DPD_BID_NAME(__dpd_addsd3,__bid_addsd3)
 330 #define DFP_SUB         DPD_BID_NAME(__dpd_subsd3,__bid_subsd3)
 331 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_mulsd3,__bid_mulsd3)
 332 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divsd3,__bid_divsd3)
 333 #define DFP_EQ          DPD_BID_NAME(__dpd_eqsd2,__bid_eqsd2)
 334 #define DFP_NE          DPD_BID_NAME(__dpd_nesd2,__bid_nesd2)
 335 #define DFP_LT          DPD_BID_NAME(__dpd_ltsd2,__bid_ltsd2)
 336 #define DFP_GT          DPD_BID_NAME(__dpd_gtsd2,__bid_gtsd2)
 337 #define DFP_LE          DPD_BID_NAME(__dpd_lesd2,__bid_lesd2)
 338 #define DFP_GE          DPD_BID_NAME(__dpd_gesd2,__bid_gesd2)
 339 #define DFP_UNORD       DPD_BID_NAME(__dpd_unordsd2,__bid_unordsd2)
 340 #elif WIDTH == 64
 341 #define DFP_ADD         DPD_BID_NAME(__dpd_adddd3,__bid_adddd3)
 342 #define DFP_SUB         DPD_BID_NAME(__dpd_subdd3,__bid_subdd3)
 343 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_muldd3,__bid_muldd3)
 344 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divdd3,__bid_divdd3)
 345 #define DFP_EQ          DPD_BID_NAME(__dpd_eqdd2,__bid_eqdd2)
 346 #define DFP_NE          DPD_BID_NAME(__dpd_nedd2,__bid_nedd2)
 347 #define DFP_LT          DPD_BID_NAME(__dpd_ltdd2,__bid_ltdd2)
 348 #define DFP_GT          DPD_BID_NAME(__dpd_gtdd2,__bid_gtdd2)
 349 #define DFP_LE          DPD_BID_NAME(__dpd_ledd2,__bid_ledd2)
 350 #define DFP_GE          DPD_BID_NAME(__dpd_gedd2,__bid_gedd2)
 351 #define DFP_UNORD       DPD_BID_NAME(__dpd_unorddd2,__bid_unorddd2)
 352 #elif WIDTH == 128
 353 #define DFP_ADD         DPD_BID_NAME(__dpd_addtd3,__bid_addtd3)
 354 #define DFP_SUB         DPD_BID_NAME(__dpd_subtd3,__bid_subtd3)
 355 #define DFP_MULTIPLY    DPD_BID_NAME(__dpd_multd3,__bid_multd3)
 356 #define DFP_DIVIDE      DPD_BID_NAME(__dpd_divtd3,__bid_divtd3)
 357 #define DFP_EQ          DPD_BID_NAME(__dpd_eqtd2,__bid_eqtd2)
 358 #define DFP_NE          DPD_BID_NAME(__dpd_netd2,__bid_netd2)
 359 #define DFP_LT          DPD_BID_NAME(__dpd_lttd2,__bid_lttd2)
 360 #define DFP_GT          DPD_BID_NAME(__dpd_gttd2,__bid_gttd2)
 361 #define DFP_LE          DPD_BID_NAME(__dpd_letd2,__bid_letd2)
 362 #define DFP_GE          DPD_BID_NAME(__dpd_getd2,__bid_getd2)
 363 #define DFP_UNORD       DPD_BID_NAME(__dpd_unordtd2,__bid_unordtd2)
 364 #endif
 365
 366 /* Names of decNumber functions for DPD arithmetic.  */
 367
 368 #if WIDTH == 32
 369 #define decFloat                decDouble
 370 #define DFP_BINARY_OP           d32_binary_op
 371 #define DFP_COMPARE_OP          d32_compare_op
 372 #define DEC_FLOAT_ADD           decDoubleAdd
 373 #define DEC_FLOAT_SUBTRACT      decDoubleSubtract
 374 #define DEC_FLOAT_MULTIPLY      decDoubleMultiply
 375 #define DEC_FLOAT_DIVIDE        decDoubleDivide
 376 #define DEC_FLOAT_COMPARE       decDoubleCompare
 377 #define DEC_FLOAT_IS_ZERO       decDoubleIsZero
 378 #define DEC_FLOAT_IS_NAN        decDoubleIsNaN
 379 #define DEC_FLOAT_IS_SIGNED     decDoubleIsSigned
 380 #elif WIDTH == 64
 381 #define DFP_BINARY_OP           dnn_binary_op
 382 #define DFP_COMPARE_OP          dnn_compare_op
 383 #define decFloat                decDouble
 384 #define DEC_FLOAT_ADD           decDoubleAdd
 385 #define DEC_FLOAT_SUBTRACT      decDoubleSubtract
 386 #define DEC_FLOAT_MULTIPLY      decDoubleMultiply
 387 #define DEC_FLOAT_DIVIDE        decDoubleDivide
 388 #define DEC_FLOAT_COMPARE       decDoubleCompare
 389 #define DEC_FLOAT_IS_ZERO       decDoubleIsZero
 390 #define DEC_FLOAT_IS_NAN        decDoubleIsNaN
 391 #define DEC_FLOAT_IS_SIGNED     decDoubleIsSigned
 392 #elif WIDTH == 128
 393 #define DFP_BINARY_OP           dnn_binary_op
 394 #define DFP_COMPARE_OP          dnn_compare_op
 395 #define decFloat                decQuad
 396 #define DEC_FLOAT_ADD           decQuadAdd
 397 #define DEC_FLOAT_SUBTRACT      decQuadSubtract
 398 #define DEC_FLOAT_MULTIPLY      decQuadMultiply
 399 #define DEC_FLOAT_DIVIDE        decQuadDivide
 400 #define DEC_FLOAT_COMPARE       decQuadCompare
 401 #define DEC_FLOAT_IS_ZERO       decQuadIsZero
 402 #define DEC_FLOAT_IS_NAN        decQuadIsNaN
 403 #define DEC_FLOAT_IS_SIGNED     decQuadIsSigned
 404 #endif
 405
 406 /* Names of functions to convert between different decimal float types.  */
 407
 408 #if WIDTH == 32
 409 #if WIDTH_TO == 64
 410 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendsddd2,__bid_extendsddd2)
 411 #elif WIDTH_TO == 128
 412 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendsdtd2,__bid_extendsdtd2)
 413 #endif
 414 #elif WIDTH == 64
 415 #if WIDTH_TO == 32
 416 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_truncddsd2,__bid_truncddsd2)
 417 #elif WIDTH_TO == 128
 418 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_extendddtd2,__bid_extendddtd2)
 419 #endif
 420 #elif WIDTH == 128
 421 #if WIDTH_TO == 32
 422 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_trunctdsd2,__bid_trunctdsd2)
 423 #elif WIDTH_TO == 64
 424 #define DFP_TO_DFP      DPD_BID_NAME(__dpd_trunctddd2,__bid_trunctddd2)
 425 #endif
 426 #endif
 427
 428 /* Names of functions to convert between decimal float and integers.  */
 429
 430 #if WIDTH == 32
 431 #if INT_KIND == 1
 432 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsisd,__bid_floatsisd)
 433 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixsdsi,__bid_fixsdsi)
 434 #define DEC_FLOAT_FROM_INT decDoubleFromInt32
 435 #define DEC_FLOAT_TO_INT   decDoubleToInt32
 436 #elif INT_KIND == 2
 437 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatdisd,__bid_floatdisd)
 438 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixsddi,__bid_fixsddi)
 439 #elif INT_KIND == 3
 440 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssisd,__bid_floatunssisd)
 441 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunssdsi,__bid_fixunssdsi)
 442 #define DEC_FLOAT_FROM_INT decDoubleFromUInt32
 443 #define DEC_FLOAT_TO_INT   decDoubleToUInt32
 444 #elif INT_KIND == 4
 445 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsdisd,__bid_floatunsdisd)
 446 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunssddi,__bid_fixunssddi)
 447 #endif
 448 #elif WIDTH == 64
 449 #define decFloat        decDouble
 450 #if INT_KIND == 1
 451 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsidd,__bid_floatsidd)
 452 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixddsi,__bid_fixddsi)
 453 #define DEC_FLOAT_FROM_INT decDoubleFromInt32
 454 #define DEC_FLOAT_TO_INT   decDoubleToInt32
 455 #elif INT_KIND == 2
 456 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatdidd,__bid_floatdidd)
 457 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixdddi,__bid_fixdddi)
 458 #elif INT_KIND == 3
 459 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssidd,__bid_floatunssidd)
 460 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunsddsi,__bid_fixunsddsi)
 461 #define DEC_FLOAT_FROM_INT decDoubleFromUInt32
 462 #define DEC_FLOAT_TO_INT   decDoubleToUInt32
 463 #elif INT_KIND == 4
 464 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsdidd,__bid_floatunsdidd)
 465 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunsdddi,__bid_fixunsdddi)
 466 #endif
 467 #elif WIDTH == 128
 468 #define decFloat        decQuad
 469 #if INT_KIND == 1
 470 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatsitd,__bid_floatsitd)
 471 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixtdsi,__bid_fixtdsi)
 472 #define DEC_FLOAT_FROM_INT decQuadFromInt32
 473 #define DEC_FLOAT_TO_INT   decQuadToInt32
 474 #elif INT_KIND == 2
 475 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatditd,__bid_floatditd)
 476 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixtddi,__bid_fixtddi)
 477 #elif INT_KIND == 3
 478 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunssitd,__bid_floatunssitd)
 479 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunstdsi,__bid_fixunstdsi)
 480 #define DEC_FLOAT_FROM_INT decQuadFromUInt32
 481 #define DEC_FLOAT_TO_INT   decQuadToUInt32
 482 #elif INT_KIND == 4
 483 #define INT_TO_DFP      DPD_BID_NAME(__dpd_floatunsditd,__bid_floatunsditd)
 484 #define DFP_TO_INT      DPD_BID_NAME(__dpd_fixunstddi,__bid_fixunstddi)
 485 #endif
 486 #endif
 487
 488 /* Names of functions to convert between decimal float and binary float.  */
 489
 490 #if WIDTH == 32
 491 #if BFP_KIND == 1
 492 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsfsd,__bid_extendsfsd)
 493 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncsdsf,__bid_truncsdsf)
 494 #elif BFP_KIND == 2
 495 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncdfsd,__bid_truncdfsd)
 496 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsddf,__bid_extendsddf)
 497 #elif BFP_KIND == 3
 498 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncxfsd,__bid_truncxfsd)
 499 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsdxf,__bid_extendsdxf)
 500 #elif BFP_KIND == 4
 501 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunctfsd,__bid_trunctfsd)
 502 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsdtf,__bid_extendsdtf)
 503 #elif BFP_KIND == 5
 504 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunckfsd,__bid_trunckfsd)
 505 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendsdkf,__bid_extendsdkf)
 506 #endif /* BFP_KIND */
 507
 508 #elif WIDTH == 64
 509 #if BFP_KIND == 1
 510 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsfdd,__bid_extendsfdd)
 511 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncddsf,__bid_truncddsf)
 512 #elif BFP_KIND == 2
 513 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extenddfdd,__bid_extenddfdd)
 514 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_truncdddf,__bid_truncdddf)
 515 #elif BFP_KIND == 3
 516 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_truncxfdd,__bid_truncxfdd)
 517 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendddxf,__bid_extendddxf)
 518 #elif BFP_KIND == 4
 519 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunctfdd,__bid_trunctfdd)
 520 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendddtf,__bid_extendddtf)
 521 #elif BFP_KIND == 5
 522 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_trunckfdd,__bid_trunckfdd)
 523 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_extendddkf,__bid_extendddkf)
 524 #endif /* BFP_KIND */
 525
 526 #elif WIDTH == 128
 527 #if BFP_KIND == 1
 528 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendsftd,__bid_extendsftd)
 529 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdsf,__bid_trunctdsf)
 530 #elif BFP_KIND == 2
 531 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extenddftd,__bid_extenddftd)
 532 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctddf,__bid_trunctddf)
 533 #elif BFP_KIND == 3
 534 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendxftd,__bid_extendxftd)
 535 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdxf,__bid_trunctdxf)
 536 #elif BFP_KIND == 4
 537 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendtftd,__bid_extendtftd)
 538 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdtf,__bid_trunctdtf)
 539 #elif BFP_KIND == 5
 540 #define BFP_TO_DFP      DPD_BID_NAME(__dpd_extendkftd,__bid_extendkftd)
 541 #define DFP_TO_BFP      DPD_BID_NAME(__dpd_trunctdkf,__bid_trunctdkf)
 542 #endif /* BFP_KIND */
 543
 544 #endif /* WIDTH */
 545
 546 /* Some handy typedefs.  */
 547
 548 typedef float SFtype __attribute__ ((mode (SF)));
 549 typedef float DFtype __attribute__ ((mode (DF)));
 550 #if LONG_DOUBLE_HAS_XF_MODE
 551 typedef float XFtype __attribute__ ((mode (XF)));
 552 #endif /* LONG_DOUBLE_HAS_XF_MODE */
 553 #if LONG_DOUBLE_HAS_TF_MODE
 554 typedef float TFtype __attribute__ ((mode (TF)));
 555 #endif /* LONG_DOUBLE_HAS_TF_MODE */
 556
 557 typedef int SItype __attribute__ ((mode (SI)));
 558 typedef int DItype __attribute__ ((mode (DI)));
 559 typedef unsigned int USItype __attribute__ ((mode (SI)));
 560 typedef unsigned int UDItype __attribute__ ((mode (DI)));
 561
 562 /* The type of the result of a decimal float comparison.  This must
 563    match `__libgcc_cmp_return__' in GCC for the target.  */
 564
 565 typedef int CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
 566
 567 /* Prototypes.  */
 568
 569 #if defined (L_mul_sd) || defined (L_mul_dd) || defined (L_mul_td)
 570 extern DFP_C_TYPE DFP_MULTIPLY (DFP_C_TYPE, DFP_C_TYPE);
 571 #endif
 572
 573 #if defined (L_div_sd) || defined (L_div_dd) || defined (L_div_td)
 574 extern DFP_C_TYPE DFP_DIVIDE (DFP_C_TYPE, DFP_C_TYPE);
 575 #endif
 576
 577 #if defined (L_addsub_sd) || defined (L_addsub_dd) || defined (L_addsub_td)
 578 extern DFP_C_TYPE DFP_ADD (DFP_C_TYPE, DFP_C_TYPE);
 579 extern DFP_C_TYPE DFP_SUB (DFP_C_TYPE, DFP_C_TYPE);
 580 #endif
 581
 582 #if defined (L_eq_sd) || defined (L_eq_dd) || defined (L_eq_td)
 583 extern CMPtype DFP_EQ (DFP_C_TYPE, DFP_C_TYPE);
 584 #endif
 585
 586 #if defined (L_ne_sd) || defined (L_ne_dd) || defined (L_ne_td)
 587 extern CMPtype DFP_NE (DFP_C_TYPE, DFP_C_TYPE);
 588 #endif
 589
 590 #if defined (L_lt_sd) || defined (L_lt_dd) || defined (L_lt_td)
 591 extern CMPtype DFP_LT (DFP_C_TYPE, DFP_C_TYPE);
 592 #endif
 593
 594 #if defined (L_gt_sd) || defined (L_gt_dd) || defined (L_gt_td)
 595 extern CMPtype DFP_GT (DFP_C_TYPE, DFP_C_TYPE);
 596 #endif
 597
 598 #if defined (L_le_sd) || defined (L_le_dd) || defined (L_le_td)
 599 extern CMPtype DFP_LE (DFP_C_TYPE, DFP_C_TYPE);
 600 #endif
 601
 602 #if defined (L_ge_sd) || defined (L_ge_dd) || defined (L_ge_td)
 603 extern CMPtype DFP_GE (DFP_C_TYPE, DFP_C_TYPE);
 604 #endif
 605
 606 #if defined (L_unord_sd) || defined (L_unord_dd) || defined (L_unord_td)
 607 extern CMPtype DFP_UNORD (DFP_C_TYPE, DFP_C_TYPE);
 608 #endif
 609
 610 #if defined (L_sd_to_dd) || defined (L_sd_to_td) || defined (L_dd_to_sd) \
 611  || defined (L_dd_to_td) || defined (L_td_to_sd) || defined (L_td_to_dd)
 612 extern DFP_C_TYPE_TO DFP_TO_DFP (DFP_C_TYPE);
 613 #endif
 614
 615 #if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \
 616  || defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
 617  || defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
 618  || defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi)
 619 extern INT_TYPE DFP_TO_INT (DFP_C_TYPE);
 620 #endif
 621
 622 #if defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td) \
 623  || defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td) \
 624  || defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td) \
 625  || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
 626 extern DFP_C_TYPE INT_TO_DFP (INT_TYPE);
 627 #endif
 628
 629 #if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
 630  || defined (L_sd_to_df) || defined (L_dd_to_df) || defined (L_td_to_df) \
 631  || defined (L_sd_to_kf) || defined (L_dd_to_kf) || defined (L_td_to_kf) \
 632  || ((defined (L_sd_to_xf) || defined (L_dd_to_xf) || defined (L_td_to_xf)) \
 633      && LONG_DOUBLE_HAS_XF_MODE) \
 634  || ((defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf)) \
 635      && LONG_DOUBLE_HAS_TF_MODE)
 636 extern BFP_TYPE DFP_TO_BFP (DFP_C_TYPE);
 637 #endif
 638
 639 #if defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td) \
 640  || defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td) \
 641  || ((defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)) \
 642      && LONG_DOUBLE_HAS_XF_MODE) \
 643  || ((defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)) \
 644      && LONG_DOUBLE_HAS_TF_MODE)
 645 extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE);
 646 #define BFP_SPRINTF sprintf
 647
 648 #elif defined (L_kf_to_sd) || defined (L_kf_to_dd) || defined (L_kf_to_td)
 649 extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE);
 650 extern int __sprintfieee128 (char *restrict, const char *restrict, ...);
 651 #define BFP_SPRINTF __sprintfieee128
 652 #endif
 653
 654 #endif /* _DFPBIT_H */