1 /* Header file for dfp-bit.c. 2 Copyright (C) 2005-2020 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 */ 629