629 lines
22 KiB
C
629 lines
22 KiB
C
/* Header file for dfp-bit.c.
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Copyright (C) 2005-2019 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _DFPBIT_H
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#define _DFPBIT_H
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#include <float.h>
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#include <fenv.h>
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#include <decRound.h>
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#include <decExcept.h>
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#include "tconfig.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "libgcc_tm.h"
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/* We need to know the size of long double that the C library supports.
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Don't use LIBGCC2_HAS_XF_MODE or LIBGCC2_HAS_TF_MODE here because
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some targets set both of those. */
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#ifndef __LIBGCC_XF_MANT_DIG__
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#define __LIBGCC_XF_MANT_DIG__ 0
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#endif
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#define LONG_DOUBLE_HAS_XF_MODE \
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(__LDBL_MANT_DIG__ == __LIBGCC_XF_MANT_DIG__)
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#ifndef __LIBGCC_TF_MANT_DIG__
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#define __LIBGCC_TF_MANT_DIG__ 0
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#endif
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#define LONG_DOUBLE_HAS_TF_MODE \
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(__LDBL_MANT_DIG__ == __LIBGCC_TF_MANT_DIG__)
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/* Depending on WIDTH, define a number of macros:
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DFP_C_TYPE: type of the arguments to the libgcc functions;
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(eg _Decimal32)
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IEEE_TYPE: the corresponding (encoded) IEEE754 type;
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(eg decimal32)
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TO_INTERNAL: the name of the decNumber function to convert an
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encoded value into the decNumber internal representation;
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TO_ENCODED: the name of the decNumber function to convert an
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internally represented decNumber into the encoded
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representation.
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FROM_STRING: the name of the decNumber function to read an
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encoded value from a string.
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TO_STRING: the name of the decNumber function to write an
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encoded value to a string. */
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#if WIDTH == 32
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#define DFP_C_TYPE _Decimal32
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#define IEEE_TYPE decimal32
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#define HOST_TO_IEEE __host_to_ieee_32
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#define IEEE_TO_HOST __ieee_to_host_32
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#define TO_INTERNAL __decimal32ToNumber
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#define TO_ENCODED __decimal32FromNumber
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#define FROM_STRING __decimal32FromString
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#define TO_STRING __decimal32ToString
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#elif WIDTH == 64
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#define DFP_C_TYPE _Decimal64
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#define IEEE_TYPE decimal64
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#define HOST_TO_IEEE __host_to_ieee_64
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#define IEEE_TO_HOST __ieee_to_host_64
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#define TO_INTERNAL __decimal64ToNumber
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#define TO_ENCODED __decimal64FromNumber
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#define FROM_STRING __decimal64FromString
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#define TO_STRING __decimal64ToString
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#elif WIDTH == 128
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#define DFP_C_TYPE _Decimal128
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#define IEEE_TYPE decimal128
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#define HOST_TO_IEEE __host_to_ieee_128
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#define IEEE_TO_HOST __ieee_to_host_128
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#define TO_INTERNAL __decimal128ToNumber
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#define TO_ENCODED __decimal128FromNumber
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#define FROM_STRING __decimal128FromString
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#define TO_STRING __decimal128ToString
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#else
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#error invalid decimal float word width
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#endif
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/* We define __DEC_EVAL_METHOD__ to 2, saying that we evaluate all
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operations and constants to the range and precision of the _Decimal128
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type. Make it so. */
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#if WIDTH == 32
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#define CONTEXT_INIT DEC_INIT_DECIMAL32
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#elif WIDTH == 64
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#define CONTEXT_INIT DEC_INIT_DECIMAL64
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#elif WIDTH == 128
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#define CONTEXT_INIT DEC_INIT_DECIMAL128
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#endif
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#ifndef DFP_INIT_ROUNDMODE
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#define DFP_INIT_ROUNDMODE(A) A = DEC_ROUND_HALF_EVEN
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#endif
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#ifdef DFP_EXCEPTIONS_ENABLED
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/* Return IEEE exception flags based on decNumber status flags. */
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#define DFP_IEEE_FLAGS(DEC_FLAGS) __extension__ \
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({int _fe_flags = 0; \
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if ((dec_flags & DEC_IEEE_854_Division_by_zero) != 0) \
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_fe_flags |= FE_DIVBYZERO; \
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if ((dec_flags & DEC_IEEE_854_Inexact) != 0) \
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_fe_flags |= FE_INEXACT; \
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if ((dec_flags & DEC_IEEE_854_Invalid_operation) != 0) \
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_fe_flags |= FE_INVALID; \
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if ((dec_flags & DEC_IEEE_854_Overflow) != 0) \
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_fe_flags |= FE_OVERFLOW; \
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if ((dec_flags & DEC_IEEE_854_Underflow) != 0) \
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_fe_flags |= FE_UNDERFLOW; \
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_fe_flags; })
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#else
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#define DFP_EXCEPTIONS_ENABLED 0
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#define DFP_IEEE_FLAGS(A) 0
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#define DFP_HANDLE_EXCEPTIONS(A) do {} while (0)
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#endif
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/* Conversions between different decimal float types use WIDTH_TO to
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determine additional macros to define. */
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#if defined (L_dd_to_sd) || defined (L_td_to_sd)
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#define WIDTH_TO 32
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#elif defined (L_sd_to_dd) || defined (L_td_to_dd)
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#define WIDTH_TO 64
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#elif defined (L_sd_to_td) || defined (L_dd_to_td)
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#define WIDTH_TO 128
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#endif
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/* If WIDTH_TO is defined, define additional macros:
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DFP_C_TYPE_TO: type of the result of dfp to dfp conversion.
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IEEE_TYPE_TO: the corresponding (encoded) IEEE754 type.
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TO_ENCODED_TO: the name of the decNumber function to convert an
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internally represented decNumber into the encoded representation
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for the destination. */
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#if WIDTH_TO == 32
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#define DFP_C_TYPE_TO _Decimal32
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#define IEEE_TYPE_TO decimal32
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#define TO_ENCODED_TO __decimal32FromNumber
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#define IEEE_TO_HOST_TO __ieee_to_host_32
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#elif WIDTH_TO == 64
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#define DFP_C_TYPE_TO _Decimal64
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#define IEEE_TYPE_TO decimal64
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#define TO_ENCODED_TO __decimal64FromNumber
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#define IEEE_TO_HOST_TO __ieee_to_host_64
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#elif WIDTH_TO == 128
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#define DFP_C_TYPE_TO _Decimal128
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#define IEEE_TYPE_TO decimal128
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#define TO_ENCODED_TO __decimal128FromNumber
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#define IEEE_TO_HOST_TO __ieee_to_host_128
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#endif
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/* Conversions between decimal float types and integral types use INT_KIND
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to determine the data type and C functions to use. */
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#if defined (L_sd_to_si) || defined (L_dd_to_si) || defined (L_td_to_si) \
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|| defined (L_si_to_sd) || defined (L_si_to_dd) || defined (L_si_to_td)
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#define INT_KIND 1
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#elif defined (L_sd_to_di) || defined (L_dd_to_di) || defined (L_td_to_di) \
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|| defined (L_di_to_sd) || defined (L_di_to_dd) || defined (L_di_to_td)
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#define INT_KIND 2
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#elif defined (L_sd_to_usi) || defined (L_dd_to_usi) || defined (L_td_to_usi) \
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|| defined (L_usi_to_sd) || defined (L_usi_to_dd) || defined (L_usi_to_td)
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#define INT_KIND 3
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#elif defined (L_sd_to_udi) || defined (L_dd_to_udi) || defined (L_td_to_udi) \
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|| defined (L_udi_to_sd) || defined (L_udi_to_dd) || defined (L_udi_to_td)
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#define INT_KIND 4
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#endif
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/* If INT_KIND is defined, define additional macros:
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INT_TYPE: The integer data type.
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INT_FMT: The format string for writing the integer to a string.
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CAST_FOR_FMT: Cast variable of INT_KIND to C type for sprintf.
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This works for ILP32 and LP64, won't for other type size systems.
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STR_TO_INT: The function to read the integer from a string. */
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#if INT_KIND == 1
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#define INT_TYPE SItype
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#define INT_FMT "%d"
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#define CAST_FOR_FMT(A) (int)A
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#define STR_TO_INT strtol
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#elif INT_KIND == 2
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#define INT_TYPE DItype
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#define INT_FMT "%lld"
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#define CAST_FOR_FMT(A) (long long)A
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#define STR_TO_INT strtoll
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#elif INT_KIND == 3
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#define INT_TYPE USItype
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#define INT_FMT "%u"
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#define CAST_FOR_FMT(A) (unsigned int)A
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#define STR_TO_INT strtoul
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#elif INT_KIND == 4
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#define INT_TYPE UDItype
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#define INT_FMT "%llu"
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#define CAST_FOR_FMT(A) (unsigned long long)A
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#define STR_TO_INT strtoull
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#endif
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/* Conversions between decimal float types and binary float types use
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BFP_KIND to determine the data type and C functions to use. */
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#if defined (L_sd_to_sf) || defined (L_dd_to_sf) || defined (L_td_to_sf) \
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|| defined (L_sf_to_sd) || defined (L_sf_to_dd) || defined (L_sf_to_td)
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#define BFP_KIND 1
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#elif defined (L_sd_to_df) || defined (L_dd_to_df ) || defined (L_td_to_df) \
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|| defined (L_df_to_sd) || defined (L_df_to_dd) || defined (L_df_to_td)
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#define BFP_KIND 2
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#elif defined (L_sd_to_xf) || defined (L_dd_to_xf ) || defined (L_td_to_xf) \
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|| defined (L_xf_to_sd) || defined (L_xf_to_dd) || defined (L_xf_to_td)
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#define BFP_KIND 3
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#elif defined (L_sd_to_tf) || defined (L_dd_to_tf) || defined (L_td_to_tf) \
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|| defined (L_tf_to_sd) || defined (L_tf_to_dd) || defined (L_tf_to_td)
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#define BFP_KIND 4
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#endif
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/* If BFP_KIND is defined, define additional macros:
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BFP_TYPE: The binary floating point data type.
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BFP_FMT: The format string for writing the value to a string.
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The number of decimal digits printed is
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ceil (nbits / log2 (10.) + 1)
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as described in David Matula's CACM 19(3) 716-723 June 1968 paper.
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BFP_VIA_TYPE: Type to which to cast a variable of BPF_TYPE for a
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call to sprintf.
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STR_TO_BFP: The function to read the value from a string. */
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#if BFP_KIND == 1
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#define BFP_TYPE SFtype
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#define BFP_FMT "%.9e"
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#define BFP_VIA_TYPE double
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#define STR_TO_BFP strtof
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#elif BFP_KIND == 2
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#define BFP_TYPE DFtype
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#define BFP_FMT "%.17e"
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#define BFP_VIA_TYPE double
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#define STR_TO_BFP strtod
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#elif BFP_KIND == 3
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#if LONG_DOUBLE_HAS_XF_MODE
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#define BFP_TYPE XFtype
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#define BFP_FMT "%.21Le"
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#define BFP_VIA_TYPE long double
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#define STR_TO_BFP strtold
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#endif /* LONG_DOUBLE_HAS_XF_MODE */
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#elif BFP_KIND == 4
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#if LONG_DOUBLE_HAS_TF_MODE
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#define BFP_TYPE TFtype
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#if LDBL_MANT_DIG == 106
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#define BFP_FMT "%.33Le"
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#elif LDBL_MANT_DIG == 113
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#define BFP_FMT "%.36Le"
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#else
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#error "unknown long double size, cannot define BFP_FMT"
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#endif /* LDBL_MANT_DIG */
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#define STR_TO_BFP strtold
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#define BFP_VIA_TYPE long double
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#endif /* LONG_DOUBLE_HAS_TF_MODE */
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#endif /* BFP_KIND */
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#if WIDTH == 128 || WIDTH_TO == 128
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#include "decimal128.h"
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#include "decQuad.h"
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#endif
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#if WIDTH == 64 || WIDTH_TO == 64
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#include "decimal64.h"
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#include "decDouble.h"
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#endif
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#if WIDTH == 32 || WIDTH_TO == 32
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#include "decimal32.h"
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#include "decSingle.h"
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#endif
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#include "decNumber.h"
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/* Names of arithmetic functions. */
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#if ENABLE_DECIMAL_BID_FORMAT
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#define DPD_BID_NAME(DPD,BID) BID
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#else
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#define DPD_BID_NAME(DPD,BID) DPD
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#endif
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#if WIDTH == 32
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#define DFP_ADD DPD_BID_NAME(__dpd_addsd3,__bid_addsd3)
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#define DFP_SUB DPD_BID_NAME(__dpd_subsd3,__bid_subsd3)
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#define DFP_MULTIPLY DPD_BID_NAME(__dpd_mulsd3,__bid_mulsd3)
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#define DFP_DIVIDE DPD_BID_NAME(__dpd_divsd3,__bid_divsd3)
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#define DFP_EQ DPD_BID_NAME(__dpd_eqsd2,__bid_eqsd2)
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#define DFP_NE DPD_BID_NAME(__dpd_nesd2,__bid_nesd2)
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#define DFP_LT DPD_BID_NAME(__dpd_ltsd2,__bid_ltsd2)
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#define DFP_GT DPD_BID_NAME(__dpd_gtsd2,__bid_gtsd2)
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#define DFP_LE DPD_BID_NAME(__dpd_lesd2,__bid_lesd2)
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#define DFP_GE DPD_BID_NAME(__dpd_gesd2,__bid_gesd2)
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#define DFP_UNORD DPD_BID_NAME(__dpd_unordsd2,__bid_unordsd2)
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#elif WIDTH == 64
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#define DFP_ADD DPD_BID_NAME(__dpd_adddd3,__bid_adddd3)
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#define DFP_SUB DPD_BID_NAME(__dpd_subdd3,__bid_subdd3)
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#define DFP_MULTIPLY DPD_BID_NAME(__dpd_muldd3,__bid_muldd3)
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#define DFP_DIVIDE DPD_BID_NAME(__dpd_divdd3,__bid_divdd3)
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#define DFP_EQ DPD_BID_NAME(__dpd_eqdd2,__bid_eqdd2)
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#define DFP_NE DPD_BID_NAME(__dpd_nedd2,__bid_nedd2)
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#define DFP_LT DPD_BID_NAME(__dpd_ltdd2,__bid_ltdd2)
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#define DFP_GT DPD_BID_NAME(__dpd_gtdd2,__bid_gtdd2)
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#define DFP_LE DPD_BID_NAME(__dpd_ledd2,__bid_ledd2)
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#define DFP_GE DPD_BID_NAME(__dpd_gedd2,__bid_gedd2)
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#define DFP_UNORD DPD_BID_NAME(__dpd_unorddd2,__bid_unorddd2)
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#elif WIDTH == 128
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#define DFP_ADD DPD_BID_NAME(__dpd_addtd3,__bid_addtd3)
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#define DFP_SUB DPD_BID_NAME(__dpd_subtd3,__bid_subtd3)
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#define DFP_MULTIPLY DPD_BID_NAME(__dpd_multd3,__bid_multd3)
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#define DFP_DIVIDE DPD_BID_NAME(__dpd_divtd3,__bid_divtd3)
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#define DFP_EQ DPD_BID_NAME(__dpd_eqtd2,__bid_eqtd2)
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#define DFP_NE DPD_BID_NAME(__dpd_netd2,__bid_netd2)
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#define DFP_LT DPD_BID_NAME(__dpd_lttd2,__bid_lttd2)
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#define DFP_GT DPD_BID_NAME(__dpd_gttd2,__bid_gttd2)
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#define DFP_LE DPD_BID_NAME(__dpd_letd2,__bid_letd2)
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#define DFP_GE DPD_BID_NAME(__dpd_getd2,__bid_getd2)
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#define DFP_UNORD DPD_BID_NAME(__dpd_unordtd2,__bid_unordtd2)
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#endif
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/* Names of decNumber functions for DPD arithmetic. */
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#if WIDTH == 32
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#define decFloat decDouble
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#define DFP_BINARY_OP d32_binary_op
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#define DFP_COMPARE_OP d32_compare_op
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#define DEC_FLOAT_ADD decDoubleAdd
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#define DEC_FLOAT_SUBTRACT decDoubleSubtract
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#define DEC_FLOAT_MULTIPLY decDoubleMultiply
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#define DEC_FLOAT_DIVIDE decDoubleDivide
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#define DEC_FLOAT_COMPARE decDoubleCompare
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#define DEC_FLOAT_IS_ZERO decDoubleIsZero
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#define DEC_FLOAT_IS_NAN decDoubleIsNaN
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#define DEC_FLOAT_IS_SIGNED decDoubleIsSigned
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#elif WIDTH == 64
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#define DFP_BINARY_OP dnn_binary_op
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#define DFP_COMPARE_OP dnn_compare_op
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#define decFloat decDouble
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#define DEC_FLOAT_ADD decDoubleAdd
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#define DEC_FLOAT_SUBTRACT decDoubleSubtract
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#define DEC_FLOAT_MULTIPLY decDoubleMultiply
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#define DEC_FLOAT_DIVIDE decDoubleDivide
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#define DEC_FLOAT_COMPARE decDoubleCompare
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#define DEC_FLOAT_IS_ZERO decDoubleIsZero
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#define DEC_FLOAT_IS_NAN decDoubleIsNaN
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#define DEC_FLOAT_IS_SIGNED decDoubleIsSigned
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#elif WIDTH == 128
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#define DFP_BINARY_OP dnn_binary_op
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#define DFP_COMPARE_OP dnn_compare_op
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#define decFloat decQuad
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#define DEC_FLOAT_ADD decQuadAdd
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#define DEC_FLOAT_SUBTRACT decQuadSubtract
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#define DEC_FLOAT_MULTIPLY decQuadMultiply
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#define DEC_FLOAT_DIVIDE decQuadDivide
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#define DEC_FLOAT_COMPARE decQuadCompare
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#define DEC_FLOAT_IS_ZERO decQuadIsZero
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#define DEC_FLOAT_IS_NAN decQuadIsNaN
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#define DEC_FLOAT_IS_SIGNED decQuadIsSigned
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#endif
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/* Names of functions to convert between different decimal float types. */
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#if WIDTH == 32
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#if WIDTH_TO == 64
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#define DFP_TO_DFP DPD_BID_NAME(__dpd_extendsddd2,__bid_extendsddd2)
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#elif WIDTH_TO == 128
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#define DFP_TO_DFP DPD_BID_NAME(__dpd_extendsdtd2,__bid_extendsdtd2)
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#endif
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#elif WIDTH == 64
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#if WIDTH_TO == 32
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#define DFP_TO_DFP DPD_BID_NAME(__dpd_truncddsd2,__bid_truncddsd2)
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#elif WIDTH_TO == 128
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#define DFP_TO_DFP DPD_BID_NAME(__dpd_extendddtd2,__bid_extendddtd2)
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#endif
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#elif WIDTH == 128
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#if WIDTH_TO == 32
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#define DFP_TO_DFP DPD_BID_NAME(__dpd_trunctdsd2,__bid_trunctdsd2)
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#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)
|
|
#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)
|
|
#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)
|
|
#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_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);
|
|
#endif
|
|
|
|
#endif /* _DFPBIT_H */
|