1/* Header file for dfp-bit.c. 2 Copyright (C) 2005-2015 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16Under Section 7 of GPL version 3, you are granted additional 17permissions described in the GCC Runtime Library Exception, version 183.1, as published by the Free Software Foundation. 19 20You should have received a copy of the GNU General Public License and 21a copy of the GCC Runtime Library Exception along with this program; 22see 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 529typedef float SFtype __attribute__ ((mode (SF))); 530typedef float DFtype __attribute__ ((mode (DF))); 531#if LONG_DOUBLE_HAS_XF_MODE 532typedef float XFtype __attribute__ ((mode (XF))); 533#endif /* LONG_DOUBLE_HAS_XF_MODE */ 534#if LONG_DOUBLE_HAS_TF_MODE 535typedef float TFtype __attribute__ ((mode (TF))); 536#endif /* LONG_DOUBLE_HAS_TF_MODE */ 537 538typedef int SItype __attribute__ ((mode (SI))); 539typedef int DItype __attribute__ ((mode (DI))); 540typedef unsigned int USItype __attribute__ ((mode (SI))); 541typedef 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 546typedef 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) 551extern 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) 555extern 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) 559extern DFP_C_TYPE DFP_ADD (DFP_C_TYPE, DFP_C_TYPE); 560extern 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) 564extern 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) 568extern 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) 572extern 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) 576extern 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) 580extern 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) 584extern 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) 588extern 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) 593extern 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) 600extern 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) 607extern 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) 616extern 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) 625extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE); 626#endif 627 628#endif /* _DFPBIT_H */ 629