| /* Header file for dfp-bit.c. |
| Copyright (C) 2005-2021 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 3, or (at your option) any later |
| version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _DFPBIT_H |
| #define _DFPBIT_H |
| |
| #include <float.h> |
| #include <fenv.h> |
| #include <decRound.h> |
| #include <decExcept.h> |
| #include "tconfig.h" |
| #include "coretypes.h" |
| #include "tm.h" |
| #include "libgcc_tm.h" |
| |
| /* We need to know the size of long double that the C library supports. |
| Don't use LIBGCC2_HAS_XF_MODE or LIBGCC2_HAS_TF_MODE here because |
| some targets set both of those. */ |
| |
| #ifndef __LIBGCC_XF_MANT_DIG__ |
| #define __LIBGCC_XF_MANT_DIG__ 0 |
| #endif |
| #define LONG_DOUBLE_HAS_XF_MODE \ |
| (__LDBL_MANT_DIG__ == __LIBGCC_XF_MANT_DIG__) |
| |
| #ifndef __LIBGCC_TF_MANT_DIG__ |
| #define __LIBGCC_TF_MANT_DIG__ 0 |
| #endif |
| #define LONG_DOUBLE_HAS_TF_MODE \ |
| (__LDBL_MANT_DIG__ == __LIBGCC_TF_MANT_DIG__) |
| |
| /* Depending on WIDTH, define a number of macros: |
| |
| DFP_C_TYPE: type of the arguments to the libgcc functions; |
| (eg _Decimal32) |
| |
| IEEE_TYPE: the corresponding (encoded) IEEE754 type; |
| (eg decimal32) |
| |
| TO_INTERNAL: the name of the decNumber function to convert an |
| encoded value into the decNumber internal representation; |
| |
| TO_ENCODED: the name of the decNumber function to convert an |
| internally represented decNumber into the encoded |
| representation. |
| |
| FROM_STRING: the name of the decNumber function to read an |
| encoded value from a string. |
| |
| TO_STRING: the name of the decNumber function to write an |
| encoded value to a string. */ |
| |
| #if WIDTH == 32 |
| #define DFP_C_TYPE _Decimal32 |
| #define IEEE_TYPE decimal32 |
| #define HOST_TO_IEEE __host_to_ieee_32 |
| #define IEEE_TO_HOST __ieee_to_host_32 |
| #define TO_INTERNAL __decimal32ToNumber |
| #define TO_ENCODED __decimal32FromNumber |
| #define FROM_STRING __decimal32FromString |
| #define TO_STRING __decimal32ToString |
| #elif WIDTH == 64 |
| #define DFP_C_TYPE _Decimal64 |
| #define IEEE_TYPE decimal64 |
| #define HOST_TO_IEEE __host_to_ieee_64 |
| #define IEEE_TO_HOST __ieee_to_host_64 |
| #define TO_INTERNAL __decimal64ToNumber |
| #define TO_ENCODED __decimal64FromNumber |
| #define FROM_STRING __decimal64FromString |
| #define TO_STRING __decimal64ToString |
| #elif WIDTH == 128 |
| #define DFP_C_TYPE _Decimal128 |
| #define IEEE_TYPE decimal128 |
| #define HOST_TO_IEEE __host_to_ieee_128 |
| #define IEEE_TO_HOST __ieee_to_host_128 |
| #define TO_INTERNAL __decimal128ToNumber |
| #define TO_ENCODED __decimal128FromNumber |
| #define FROM_STRING __decimal128FromString |
| #define TO_STRING __decimal128ToString |
| #else |
| #error invalid decimal float word width |
| #endif |
| |
| /* We define __DEC_EVAL_METHOD__ to 2, saying that we evaluate all |
| operations and constants to the range and precision of the _Decimal128 |
| type. Make it so. */ |
| #if WIDTH == 32 |
| #define CONTEXT_INIT DEC_INIT_DECIMAL32 |
| #elif WIDTH == 64 |
| #define CONTEXT_INIT DEC_INIT_DECIMAL64 |
| #elif WIDTH == 128 |
| #define CONTEXT_INIT DEC_INIT_DECIMAL128 |
| #endif |
| |
| #ifndef DFP_INIT_ROUNDMODE |
| #define DFP_INIT_ROUNDMODE(A) A = DEC_ROUND_HALF_EVEN |
| #endif |
| |
| #ifdef DFP_EXCEPTIONS_ENABLED |
| /* Return IEEE exception flags based on decNumber status flags. */ |
| #define DFP_IEEE_FLAGS(DEC_FLAGS) __extension__ \ |
| ({int _fe_flags = 0; \ |
| if ((dec_flags & DEC_IEEE_854_Division_by_zero) != 0) \ |
| _fe_flags |= FE_DIVBYZERO; \ |
| if ((dec_flags & DEC_IEEE_854_Inexact) != 0) \ |
| _fe_flags |= FE_INEXACT; \ |
| if ((dec_flags & DEC_IEEE_854_Invalid_operation) != 0) \ |
| _fe_flags |= FE_INVALID; \ |
| if ((dec_flags & DEC_IEEE_854_Overflow) != 0) \ |
| _fe_flags |= FE_OVERFLOW; \ |
| if ((dec_flags & DEC_IEEE_854_Underflow) != 0) \ |
| _fe_flags |= FE_UNDERFLOW; \ |
| _fe_flags; }) |
| #else |
| #define DFP_EXCEPTIONS_ENABLED 0 |
| #define DFP_IEEE_FLAGS(A) 0 |
| #define DFP_HANDLE_EXCEPTIONS(A) do {} while (0) |
| #endif |
| |
| /* Conversions between different decimal float types use WIDTH_TO to |
| determine additional macros to define. */ |
| |
| #if defined (L_dd_to_sd) || defined (L_td_to_sd) |
| #define WIDTH_TO 32 |
| #elif defined (L_sd_to_dd) || defined (L_td_to_dd) |
| #define WIDTH_TO 64 |
| #elif defined (L_sd_to_td) || defined (L_dd_to_td) |
| #define WIDTH_TO 128 |
| #endif |
| |
| /* If WIDTH_TO is defined, define additional macros: |
| |
| DFP_C_TYPE_TO: type of the result of dfp to dfp conversion. |
| |
| IEEE_TYPE_TO: the corresponding (encoded) IEEE754 type. |
| |
| TO_ENCODED_TO: the name of the decNumber function to convert an |
| internally represented decNumber into the encoded representation |
| for the destination. */ |
| |
| #if WIDTH_TO == 32 |
| #define DFP_C_TYPE_TO _Decimal32 |
| #define IEEE_TYPE_TO decimal32 |
| #define TO_ENCODED_TO __decimal32FromNumber |
| #define IEEE_TO_HOST_TO __ieee_to_host_32 |
| #elif WIDTH_TO == 64 |
| #define DFP_C_TYPE_TO _Decimal64 |
| #define IEEE_TYPE_TO decimal64 |
| #define TO_ENCODED_TO __decimal64FromNumber |
| #define IEEE_TO_HOST_TO __ieee_to_host_64 |
| #elif WIDTH_TO == 128 |
| #define DFP_C_TYPE_TO _Decimal128 |
| #define IEEE_TYPE_TO decimal128 |
| #define TO_ENCODED_TO __decimal128FromNumber |
| #define IEEE_TO_HOST_TO __ieee_to_host_128 |
| #endif |
| |
| /* Conversions between decimal float types and integral types use INT_KIND |
| to determine the data type and C functions to use. */ |
| |
| #if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \ |
| || defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td) |
| #define INT_KIND 1 |
| #elif defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \ |
| || defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td) |
| #define INT_KIND 2 |
| #elif defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \ |
| || defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td) |
| #define INT_KIND 3 |
| #elif defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi) \ |
| || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td) |
| #define INT_KIND 4 |
| #endif |
| |
| /* If INT_KIND is defined, define additional macros: |
| |
| INT_TYPE: The integer data type. |
| |
| INT_FMT: The format string for writing the integer to a string. |
| |
| CAST_FOR_FMT: Cast variable of INT_KIND to C type for sprintf. |
| This works for ILP32 and LP64, won't for other type size systems. |
| |
| STR_TO_INT: The function to read the integer from a string. */ |
| |
| #if INT_KIND == 1 |
| #define INT_TYPE SItype |
| #define INT_FMT "%d" |
| #define CAST_FOR_FMT(A) (int)A |
| #define STR_TO_INT strtol |
| #elif INT_KIND == 2 |
| #define INT_TYPE DItype |
| #define INT_FMT "%lld" |
| #define CAST_FOR_FMT(A) (long long)A |
| #define STR_TO_INT strtoll |
| #elif INT_KIND == 3 |
| #define INT_TYPE USItype |
| #define INT_FMT "%u" |
| #define CAST_FOR_FMT(A) (unsigned int)A |
| #define STR_TO_INT strtoul |
| #elif INT_KIND == 4 |
| #define INT_TYPE UDItype |
| #define INT_FMT "%llu" |
| #define CAST_FOR_FMT(A) (unsigned long long)A |
| #define STR_TO_INT strtoull |
| #endif |
| |
| /* Conversions between decimal float types and binary float types use |
| BFP_KIND to determine the data type and C functions to use. */ |
| |
| #if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \ |
| || defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td) |
| #define BFP_KIND 1 |
| #elif defined (L_sd_to_df) || defined (L_dd_to_df ) || defined (L_td_to_df) \ |
| || defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td) |
| #define BFP_KIND 2 |
| #elif defined (L_sd_to_xf) || defined (L_dd_to_xf ) || defined (L_td_to_xf) \ |
| || defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td) |
| #define BFP_KIND 3 |
| #elif defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf) \ |
| || defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td) |
| #define BFP_KIND 4 |
| #elif defined (L_sd_to_kf) || defined (L_dd_to_kf) || defined (L_td_to_kf) \ |
| || defined (L_kf_to_sd) || defined (L_kf_to_dd) || defined (L_kf_to_td) |
| #define BFP_KIND 5 |
| #endif |
| |
| /* If BFP_KIND is defined, define additional macros: |
| |
| BFP_TYPE: The binary floating point data type. |
| |
| BFP_FMT: The format string for writing the value to a string. |
| The number of decimal digits printed is |
| ceil (nbits / log2 (10.) + 1) |
| as described in David Matula's CACM 19(3) 716-723 June 1968 paper. |
| |
| BFP_VIA_TYPE: Type to which to cast a variable of BPF_TYPE for a |
| call to sprintf. |
| |
| STR_TO_BFP: The function to read the value from a string. */ |
| |
| #if BFP_KIND == 1 |
| #define BFP_TYPE SFtype |
| #define BFP_FMT "%.9e" |
| #define BFP_VIA_TYPE double |
| #define STR_TO_BFP strtof |
| |
| #elif BFP_KIND == 2 |
| #define BFP_TYPE DFtype |
| #define BFP_FMT "%.17e" |
| #define BFP_VIA_TYPE double |
| #define STR_TO_BFP strtod |
| |
| #elif BFP_KIND == 3 |
| #if LONG_DOUBLE_HAS_XF_MODE |
| #define BFP_TYPE XFtype |
| #define BFP_FMT "%.21Le" |
| #define BFP_VIA_TYPE long double |
| #define STR_TO_BFP strtold |
| #endif /* LONG_DOUBLE_HAS_XF_MODE */ |
| |
| #elif BFP_KIND == 4 |
| #if LONG_DOUBLE_HAS_TF_MODE |
| #define BFP_TYPE TFtype |
| #if LDBL_MANT_DIG == 106 |
| #define BFP_FMT "%.33Le" |
| #elif LDBL_MANT_DIG == 113 |
| #define BFP_FMT "%.36Le" |
| #else |
| #error "unknown long double size, cannot define BFP_FMT" |
| #endif /* LDBL_MANT_DIG */ |
| #define STR_TO_BFP strtold |
| #define BFP_VIA_TYPE long double |
| #endif /* LONG_DOUBLE_HAS_TF_MODE */ |
| |
| #elif BFP_KIND == 5 |
| #define BFP_TYPE _Float128 |
| #define BFP_FMT "%.36Le" |
| #define BFP_VIA_TYPE _Float128 |
| #define STR_TO_BFP __strtoieee128 |
| extern _Float128 __strtoieee128 (const char *, char **); |
| |
| #endif /* BFP_KIND */ |
| |
| #if WIDTH == 128 || WIDTH_TO == 128 |
| #include "decimal128.h" |
| #include "decQuad.h" |
| #endif |
| #if WIDTH == 64 || WIDTH_TO == 64 |
| #include "decimal64.h" |
| #include "decDouble.h" |
| #endif |
| #if WIDTH == 32 || WIDTH_TO == 32 |
| #include "decimal32.h" |
| #include "decSingle.h" |
| #endif |
| #include "decNumber.h" |
| |
| /* Names of arithmetic functions. */ |
| |
| #if ENABLE_DECIMAL_BID_FORMAT |
| #define DPD_BID_NAME(DPD,BID) BID |
| #else |
| #define DPD_BID_NAME(DPD,BID) DPD |
| #endif |
| |
| #if WIDTH == 32 |
| #define DFP_ADD DPD_BID_NAME(__dpd_addsd3,__bid_addsd3) |
| #define DFP_SUB DPD_BID_NAME(__dpd_subsd3,__bid_subsd3) |
| #define DFP_MULTIPLY DPD_BID_NAME(__dpd_mulsd3,__bid_mulsd3) |
| #define DFP_DIVIDE DPD_BID_NAME(__dpd_divsd3,__bid_divsd3) |
| #define DFP_EQ DPD_BID_NAME(__dpd_eqsd2,__bid_eqsd2) |
| #define DFP_NE DPD_BID_NAME(__dpd_nesd2,__bid_nesd2) |
| #define DFP_LT DPD_BID_NAME(__dpd_ltsd2,__bid_ltsd2) |
| #define DFP_GT DPD_BID_NAME(__dpd_gtsd2,__bid_gtsd2) |
| #define DFP_LE DPD_BID_NAME(__dpd_lesd2,__bid_lesd2) |
| #define DFP_GE DPD_BID_NAME(__dpd_gesd2,__bid_gesd2) |
| #define DFP_UNORD DPD_BID_NAME(__dpd_unordsd2,__bid_unordsd2) |
| #elif WIDTH == 64 |
| #define DFP_ADD DPD_BID_NAME(__dpd_adddd3,__bid_adddd3) |
| #define DFP_SUB DPD_BID_NAME(__dpd_subdd3,__bid_subdd3) |
| #define DFP_MULTIPLY DPD_BID_NAME(__dpd_muldd3,__bid_muldd3) |
| #define DFP_DIVIDE DPD_BID_NAME(__dpd_divdd3,__bid_divdd3) |
| #define DFP_EQ DPD_BID_NAME(__dpd_eqdd2,__bid_eqdd2) |
| #define DFP_NE DPD_BID_NAME(__dpd_nedd2,__bid_nedd2) |
| #define DFP_LT DPD_BID_NAME(__dpd_ltdd2,__bid_ltdd2) |
| #define DFP_GT DPD_BID_NAME(__dpd_gtdd2,__bid_gtdd2) |
| #define DFP_LE DPD_BID_NAME(__dpd_ledd2,__bid_ledd2) |
| #define DFP_GE DPD_BID_NAME(__dpd_gedd2,__bid_gedd2) |
| #define DFP_UNORD DPD_BID_NAME(__dpd_unorddd2,__bid_unorddd2) |
| #elif WIDTH == 128 |
| #define DFP_ADD DPD_BID_NAME(__dpd_addtd3,__bid_addtd3) |
| #define DFP_SUB DPD_BID_NAME(__dpd_subtd3,__bid_subtd3) |
| #define DFP_MULTIPLY DPD_BID_NAME(__dpd_multd3,__bid_multd3) |
| #define DFP_DIVIDE DPD_BID_NAME(__dpd_divtd3,__bid_divtd3) |
| #define DFP_EQ DPD_BID_NAME(__dpd_eqtd2,__bid_eqtd2) |
| #define DFP_NE DPD_BID_NAME(__dpd_netd2,__bid_netd2) |
| #define DFP_LT DPD_BID_NAME(__dpd_lttd2,__bid_lttd2) |
| #define DFP_GT DPD_BID_NAME(__dpd_gttd2,__bid_gttd2) |
| #define DFP_LE DPD_BID_NAME(__dpd_letd2,__bid_letd2) |
| #define DFP_GE DPD_BID_NAME(__dpd_getd2,__bid_getd2) |
| #define DFP_UNORD DPD_BID_NAME(__dpd_unordtd2,__bid_unordtd2) |
| #endif |
| |
| /* Names of decNumber functions for DPD arithmetic. */ |
| |
| #if WIDTH == 32 |
| #define decFloat decDouble |
| #define DFP_BINARY_OP d32_binary_op |
| #define DFP_COMPARE_OP d32_compare_op |
| #define DEC_FLOAT_ADD decDoubleAdd |
| #define DEC_FLOAT_SUBTRACT decDoubleSubtract |
| #define DEC_FLOAT_MULTIPLY decDoubleMultiply |
| #define DEC_FLOAT_DIVIDE decDoubleDivide |
| #define DEC_FLOAT_COMPARE decDoubleCompare |
| #define DEC_FLOAT_IS_ZERO decDoubleIsZero |
| #define DEC_FLOAT_IS_NAN decDoubleIsNaN |
| #define DEC_FLOAT_IS_SIGNED decDoubleIsSigned |
| #elif WIDTH == 64 |
| #define DFP_BINARY_OP dnn_binary_op |
| #define DFP_COMPARE_OP dnn_compare_op |
| #define decFloat decDouble |
| #define DEC_FLOAT_ADD decDoubleAdd |
| #define DEC_FLOAT_SUBTRACT decDoubleSubtract |
| #define DEC_FLOAT_MULTIPLY decDoubleMultiply |
| #define DEC_FLOAT_DIVIDE decDoubleDivide |
| #define DEC_FLOAT_COMPARE decDoubleCompare |
| #define DEC_FLOAT_IS_ZERO decDoubleIsZero |
| #define DEC_FLOAT_IS_NAN decDoubleIsNaN |
| #define DEC_FLOAT_IS_SIGNED decDoubleIsSigned |
| #elif WIDTH == 128 |
| #define DFP_BINARY_OP dnn_binary_op |
| #define DFP_COMPARE_OP dnn_compare_op |
| #define decFloat decQuad |
| #define DEC_FLOAT_ADD decQuadAdd |
| #define DEC_FLOAT_SUBTRACT decQuadSubtract |
| #define DEC_FLOAT_MULTIPLY decQuadMultiply |
| #define DEC_FLOAT_DIVIDE decQuadDivide |
| #define DEC_FLOAT_COMPARE decQuadCompare |
| #define DEC_FLOAT_IS_ZERO decQuadIsZero |
| #define DEC_FLOAT_IS_NAN decQuadIsNaN |
| #define DEC_FLOAT_IS_SIGNED decQuadIsSigned |
| #endif |
| |
| /* Names of functions to convert between different decimal float types. */ |
| |
| #if WIDTH == 32 |
| #if WIDTH_TO == 64 |
| #define DFP_TO_DFP DPD_BID_NAME(__dpd_extendsddd2,__bid_extendsddd2) |
| #elif WIDTH_TO == 128 |
| #define DFP_TO_DFP DPD_BID_NAME(__dpd_extendsdtd2,__bid_extendsdtd2) |
| #endif |
| #elif WIDTH == 64 |
| #if WIDTH_TO == 32 |
| #define DFP_TO_DFP DPD_BID_NAME(__dpd_truncddsd2,__bid_truncddsd2) |
| #elif WIDTH_TO == 128 |
| #define DFP_TO_DFP DPD_BID_NAME(__dpd_extendddtd2,__bid_extendddtd2) |
| #endif |
| #elif WIDTH == 128 |
| #if WIDTH_TO == 32 |
| #define DFP_TO_DFP DPD_BID_NAME(__dpd_trunctdsd2,__bid_trunctdsd2) |
| #elif WIDTH_TO == 64 |
| #define DFP_TO_DFP DPD_BID_NAME(__dpd_trunctddd2,__bid_trunctddd2) |
| #endif |
| #endif |
| |
| /* Names of functions to convert between decimal float and integers. */ |
| |
| #if WIDTH == 32 |
| #if INT_KIND == 1 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatsisd,__bid_floatsisd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixsdsi,__bid_fixsdsi) |
| #define DEC_FLOAT_FROM_INT decDoubleFromInt32 |
| #define DEC_FLOAT_TO_INT decDoubleToInt32 |
| #elif INT_KIND == 2 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatdisd,__bid_floatdisd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixsddi,__bid_fixsddi) |
| #elif INT_KIND == 3 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatunssisd,__bid_floatunssisd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixunssdsi,__bid_fixunssdsi) |
| #define DEC_FLOAT_FROM_INT decDoubleFromUInt32 |
| #define DEC_FLOAT_TO_INT decDoubleToUInt32 |
| #elif INT_KIND == 4 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatunsdisd,__bid_floatunsdisd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixunssddi,__bid_fixunssddi) |
| #endif |
| #elif WIDTH == 64 |
| #define decFloat decDouble |
| #if INT_KIND == 1 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatsidd,__bid_floatsidd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixddsi,__bid_fixddsi) |
| #define DEC_FLOAT_FROM_INT decDoubleFromInt32 |
| #define DEC_FLOAT_TO_INT decDoubleToInt32 |
| #elif INT_KIND == 2 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatdidd,__bid_floatdidd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixdddi,__bid_fixdddi) |
| #elif INT_KIND == 3 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatunssidd,__bid_floatunssidd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixunsddsi,__bid_fixunsddsi) |
| #define DEC_FLOAT_FROM_INT decDoubleFromUInt32 |
| #define DEC_FLOAT_TO_INT decDoubleToUInt32 |
| #elif INT_KIND == 4 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatunsdidd,__bid_floatunsdidd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixunsdddi,__bid_fixunsdddi) |
| #endif |
| #elif WIDTH == 128 |
| #define decFloat decQuad |
| #if INT_KIND == 1 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatsitd,__bid_floatsitd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixtdsi,__bid_fixtdsi) |
| #define DEC_FLOAT_FROM_INT decQuadFromInt32 |
| #define DEC_FLOAT_TO_INT decQuadToInt32 |
| #elif INT_KIND == 2 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatditd,__bid_floatditd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixtddi,__bid_fixtddi) |
| #elif INT_KIND == 3 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatunssitd,__bid_floatunssitd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixunstdsi,__bid_fixunstdsi) |
| #define DEC_FLOAT_FROM_INT decQuadFromUInt32 |
| #define DEC_FLOAT_TO_INT decQuadToUInt32 |
| #elif INT_KIND == 4 |
| #define INT_TO_DFP DPD_BID_NAME(__dpd_floatunsditd,__bid_floatunsditd) |
| #define DFP_TO_INT DPD_BID_NAME(__dpd_fixunstddi,__bid_fixunstddi) |
| #endif |
| #endif |
| |
| /* Names of functions to convert between decimal float and binary float. */ |
| |
| #if WIDTH == 32 |
| #if BFP_KIND == 1 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extendsfsd,__bid_extendsfsd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_truncsdsf,__bid_truncsdsf) |
| #elif BFP_KIND == 2 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_truncdfsd,__bid_truncdfsd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsddf,__bid_extendsddf) |
| #elif BFP_KIND == 3 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_truncxfsd,__bid_truncxfsd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsdxf,__bid_extendsdxf) |
| #elif BFP_KIND == 4 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_trunctfsd,__bid_trunctfsd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsdtf,__bid_extendsdtf) |
| #elif BFP_KIND == 5 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_trunckfsd,__bid_trunckfsd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_extendsdkf,__bid_extendsdkf) |
| #endif /* BFP_KIND */ |
| |
| #elif WIDTH == 64 |
| #if BFP_KIND == 1 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extendsfdd,__bid_extendsfdd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_truncddsf,__bid_truncddsf) |
| #elif BFP_KIND == 2 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extenddfdd,__bid_extenddfdd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_truncdddf,__bid_truncdddf) |
| #elif BFP_KIND == 3 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_truncxfdd,__bid_truncxfdd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_extendddxf,__bid_extendddxf) |
| #elif BFP_KIND == 4 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_trunctfdd,__bid_trunctfdd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_extendddtf,__bid_extendddtf) |
| #elif BFP_KIND == 5 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_trunckfdd,__bid_trunckfdd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_extendddkf,__bid_extendddkf) |
| #endif /* BFP_KIND */ |
| |
| #elif WIDTH == 128 |
| #if BFP_KIND == 1 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extendsftd,__bid_extendsftd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdsf,__bid_trunctdsf) |
| #elif BFP_KIND == 2 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extenddftd,__bid_extenddftd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctddf,__bid_trunctddf) |
| #elif BFP_KIND == 3 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extendxftd,__bid_extendxftd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdxf,__bid_trunctdxf) |
| #elif BFP_KIND == 4 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extendtftd,__bid_extendtftd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdtf,__bid_trunctdtf) |
| #elif BFP_KIND == 5 |
| #define BFP_TO_DFP DPD_BID_NAME(__dpd_extendkftd,__bid_extendkftd) |
| #define DFP_TO_BFP DPD_BID_NAME(__dpd_trunctdkf,__bid_trunctdkf) |
| #endif /* BFP_KIND */ |
| |
| #endif /* WIDTH */ |
| |
| /* Some handy typedefs. */ |
| |
| typedef float SFtype __attribute__ ((mode (SF))); |
| typedef float DFtype __attribute__ ((mode (DF))); |
| #if LONG_DOUBLE_HAS_XF_MODE |
| typedef float XFtype __attribute__ ((mode (XF))); |
| #endif /* LONG_DOUBLE_HAS_XF_MODE */ |
| #if LONG_DOUBLE_HAS_TF_MODE |
| typedef float TFtype __attribute__ ((mode (TF))); |
| #endif /* LONG_DOUBLE_HAS_TF_MODE */ |
| |
| typedef int SItype __attribute__ ((mode (SI))); |
| typedef int DItype __attribute__ ((mode (DI))); |
| typedef unsigned int USItype __attribute__ ((mode (SI))); |
| typedef unsigned int UDItype __attribute__ ((mode (DI))); |
| |
| /* The type of the result of a decimal float comparison. This must |
| match `__libgcc_cmp_return__' in GCC for the target. */ |
| |
| typedef int CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); |
| |
| /* Prototypes. */ |
| |
| #if defined (L_mul_sd) || defined (L_mul_dd) || defined (L_mul_td) |
| extern DFP_C_TYPE DFP_MULTIPLY (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_div_sd) || defined (L_div_dd) || defined (L_div_td) |
| extern DFP_C_TYPE DFP_DIVIDE (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_addsub_sd) || defined (L_addsub_dd) || defined (L_addsub_td) |
| extern DFP_C_TYPE DFP_ADD (DFP_C_TYPE, DFP_C_TYPE); |
| extern DFP_C_TYPE DFP_SUB (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_eq_sd) || defined (L_eq_dd) || defined (L_eq_td) |
| extern CMPtype DFP_EQ (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_ne_sd) || defined (L_ne_dd) || defined (L_ne_td) |
| extern CMPtype DFP_NE (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_lt_sd) || defined (L_lt_dd) || defined (L_lt_td) |
| extern CMPtype DFP_LT (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_gt_sd) || defined (L_gt_dd) || defined (L_gt_td) |
| extern CMPtype DFP_GT (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_le_sd) || defined (L_le_dd) || defined (L_le_td) |
| extern CMPtype DFP_LE (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_ge_sd) || defined (L_ge_dd) || defined (L_ge_td) |
| extern CMPtype DFP_GE (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_unord_sd) || defined (L_unord_dd) || defined (L_unord_td) |
| extern CMPtype DFP_UNORD (DFP_C_TYPE, DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_sd_to_dd) || defined (L_sd_to_td) || defined (L_dd_to_sd) \ |
| || defined (L_dd_to_td) || defined (L_td_to_sd) || defined (L_td_to_dd) |
| extern DFP_C_TYPE_TO DFP_TO_DFP (DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \ |
| || defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \ |
| || defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \ |
| || defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi) |
| extern INT_TYPE DFP_TO_INT (DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td) \ |
| || defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td) \ |
| || defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td) \ |
| || defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td) |
| extern DFP_C_TYPE INT_TO_DFP (INT_TYPE); |
| #endif |
| |
| #if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \ |
| || defined (L_sd_to_df) || defined (L_dd_to_df) || defined (L_td_to_df) \ |
| || defined (L_sd_to_kf) || defined (L_dd_to_kf) || defined (L_td_to_kf) \ |
| || ((defined (L_sd_to_xf) || defined (L_dd_to_xf) || defined (L_td_to_xf)) \ |
| && LONG_DOUBLE_HAS_XF_MODE) \ |
| || ((defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf)) \ |
| && LONG_DOUBLE_HAS_TF_MODE) |
| extern BFP_TYPE DFP_TO_BFP (DFP_C_TYPE); |
| #endif |
| |
| #if defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td) \ |
| || defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td) \ |
| || ((defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)) \ |
| && LONG_DOUBLE_HAS_XF_MODE) \ |
| || ((defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)) \ |
| && LONG_DOUBLE_HAS_TF_MODE) |
| extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE); |
| #define BFP_SPRINTF sprintf |
| |
| #elif defined (L_kf_to_sd) || defined (L_kf_to_dd) || defined (L_kf_to_td) |
| extern DFP_C_TYPE BFP_TO_DFP (BFP_TYPE); |
| extern int __sprintfieee128 (char *restrict, const char *restrict, ...); |
| #define BFP_SPRINTF __sprintfieee128 |
| #endif |
| |
| #endif /* _DFPBIT_H */ |
