projects / deliverable / binutils-gdb.git / blame
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| f5bc1778 | 1 | /* decQuad module header for the decNumber C Library. |
| f57a3bca | 2 | Copyright (C) 2007-2018 Free Software Foundation, Inc. |
| f5bc1778 DJ |
3 | Contributed by IBM Corporation. Author Mike Cowlishaw. |
| 4 | ||
| 5 | This file is part of GCC. | |
| 6 | ||
| 7 | GCC is free software; you can redistribute it and/or modify it under | |
| 8 | the terms of the GNU General Public License as published by the Free | |
| 168a2f77 | 9 | Software Foundation; either version 3, or (at your option) any later |
| f5bc1778 DJ |
10 | version. |
| 11 | ||
| f5bc1778 DJ |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 | for more details. | |
| 16 | ||
| 168a2f77 DD |
17 | Under Section 7 of GPL version 3, you are granted additional |
| 18 | permissions described in the GCC Runtime Library Exception, version | |
| 19 | 3.1, as published by the Free Software Foundation. | |
| 20 | ||
| 21 | You should have received a copy of the GNU General Public License and | |
| 22 | a copy of the GCC Runtime Library Exception along with this program; | |
| 23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 24 | <http://www.gnu.org/licenses/>. */ | |
| f5bc1778 DJ |
25 | |
| 26 | /* ------------------------------------------------------------------ */ | |
| 27 | /* decQuad.h -- Decimal 128-bit format module header */ | |
| 28 | /* ------------------------------------------------------------------ */ | |
| f5bc1778 | 29 | /* This include file is always included by decSingle and decDouble, */ |
| 87d32bb7 | 30 | /* and therefore also holds useful constants used by all three. */ |
| f5bc1778 DJ |
31 | |
| 32 | #if !defined(DECQUAD) | |
| 33 | #define DECQUAD | |
| 34 | ||
| 35 | #define DECQUADNAME "decimalQuad" /* Short name */ | |
| 36 | #define DECQUADTITLE "Decimal 128-bit datum" /* Verbose name */ | |
| 87d32bb7 | 37 | #define DECQUADAUTHOR "Mike Cowlishaw" /* Who to blame */ |
| f5bc1778 DJ |
38 | |
| 39 | /* parameters for decQuads */ | |
| 87d32bb7 | 40 | #define DECQUAD_Bytes 16 /* length */ |
| f5bc1778 | 41 | #define DECQUAD_Pmax 34 /* maximum precision (digits) */ |
| 87d32bb7 DD |
42 | #define DECQUAD_Emin -6143 /* minimum adjusted exponent */ |
| 43 | #define DECQUAD_Emax 6144 /* maximum adjusted exponent */ | |
| 44 | #define DECQUAD_EmaxD 4 /* maximum exponent digits */ | |
| f5bc1778 | 45 | #define DECQUAD_Bias 6176 /* bias for the exponent */ |
| 87d32bb7 DD |
46 | #define DECQUAD_String 43 /* maximum string length, +1 */ |
| 47 | #define DECQUAD_EconL 12 /* exponent continuation length */ | |
| f5bc1778 DJ |
48 | #define DECQUAD_Declets 11 /* count of declets */ |
| 49 | /* highest biased exponent (Elimit-1) */ | |
| 50 | #define DECQUAD_Ehigh (DECQUAD_Emax + DECQUAD_Bias - (DECQUAD_Pmax-1)) | |
| 51 | ||
| 52 | /* Required include */ | |
| 53 | #include "decContext.h" | |
| 54 | ||
| 87d32bb7 | 55 | /* The decQuad decimal 128-bit type, accessible by all sizes */ |
| aed1add3 | 56 | typedef union { |
| 87d32bb7 | 57 | uint8_t bytes[DECQUAD_Bytes]; /* fields: 1, 5, 12, 110 bits */ |
| aed1add3 | 58 | uint16_t shorts[DECQUAD_Bytes/2]; |
| 87d32bb7 DD |
59 | uint32_t words[DECQUAD_Bytes/4]; |
| 60 | #if DECUSE64 | |
| 61 | uint64_t longs[DECQUAD_Bytes/8]; | |
| 62 | #endif | |
| f5bc1778 DJ |
63 | } decQuad; |
| 64 | ||
| 65 | /* ---------------------------------------------------------------- */ | |
| 66 | /* Shared constants */ | |
| 67 | /* ---------------------------------------------------------------- */ | |
| 68 | ||
| 69 | /* sign and special values [top 32-bits; last two bits are don't-care | |
| 70 | for Infinity on input, last bit don't-care for NaNs] */ | |
| 87d32bb7 | 71 | #define DECFLOAT_Sign 0x80000000 /* 1 00000 00 Sign */ |
| f5bc1778 | 72 | #define DECFLOAT_NaN 0x7c000000 /* 0 11111 00 NaN generic */ |
| 87d32bb7 DD |
73 | #define DECFLOAT_qNaN 0x7c000000 /* 0 11111 00 qNaN */ |
| 74 | #define DECFLOAT_sNaN 0x7e000000 /* 0 11111 10 sNaN */ | |
| f5bc1778 DJ |
75 | #define DECFLOAT_Inf 0x78000000 /* 0 11110 00 Infinity */ |
| 76 | #define DECFLOAT_MinSp 0x78000000 /* minimum special value */ | |
| 77 | /* [specials are all >=MinSp] */ | |
| 78 | /* Sign nibble constants */ | |
| 79 | #if !defined(DECPPLUSALT) | |
| 87d32bb7 DD |
80 | #define DECPPLUSALT 0x0A /* alternate plus nibble */ |
| 81 | #define DECPMINUSALT 0x0B /* alternate minus nibble */ | |
| 82 | #define DECPPLUS 0x0C /* preferred plus nibble */ | |
| 83 | #define DECPMINUS 0x0D /* preferred minus nibble */ | |
| 84 | #define DECPPLUSALT2 0x0E /* alternate plus nibble */ | |
| 85 | #define DECPUNSIGNED 0x0F /* alternate plus nibble (unsigned) */ | |
| f5bc1778 DJ |
86 | #endif |
| 87 | ||
| 88 | /* ---------------------------------------------------------------- */ | |
| 89 | /* Routines -- implemented as decFloat routines in common files */ | |
| 90 | /* ---------------------------------------------------------------- */ | |
| 91 | ||
| 92 | #include "decQuadSymbols.h" | |
| 93 | ||
| 94 | /* Utilities and conversions, extractors, etc.) */ | |
| 95 | extern decQuad * decQuadFromBCD(decQuad *, int32_t, const uint8_t *, int32_t); | |
| 96 | extern decQuad * decQuadFromInt32(decQuad *, int32_t); | |
| 97 | extern decQuad * decQuadFromPacked(decQuad *, int32_t, const uint8_t *); | |
| 87d32bb7 | 98 | extern decQuad * decQuadFromPackedChecked(decQuad *, int32_t, const uint8_t *); |
| f5bc1778 DJ |
99 | extern decQuad * decQuadFromString(decQuad *, const char *, decContext *); |
| 100 | extern decQuad * decQuadFromUInt32(decQuad *, uint32_t); | |
| 101 | extern int32_t decQuadGetCoefficient(const decQuad *, uint8_t *); | |
| 102 | extern int32_t decQuadGetExponent(const decQuad *); | |
| 103 | extern decQuad * decQuadSetCoefficient(decQuad *, const uint8_t *, int32_t); | |
| 104 | extern decQuad * decQuadSetExponent(decQuad *, decContext *, int32_t); | |
| 105 | extern void decQuadShow(const decQuad *, const char *); | |
| 106 | extern int32_t decQuadToBCD(const decQuad *, int32_t *, uint8_t *); | |
| 107 | extern char * decQuadToEngString(const decQuad *, char *); | |
| 108 | extern int32_t decQuadToInt32(const decQuad *, decContext *, enum rounding); | |
| 109 | extern int32_t decQuadToInt32Exact(const decQuad *, decContext *, enum rounding); | |
| 110 | extern int32_t decQuadToPacked(const decQuad *, int32_t *, uint8_t *); | |
| 111 | extern char * decQuadToString(const decQuad *, char *); | |
| 112 | extern uint32_t decQuadToUInt32(const decQuad *, decContext *, enum rounding); | |
| 113 | extern uint32_t decQuadToUInt32Exact(const decQuad *, decContext *, enum rounding); | |
| 114 | extern decQuad * decQuadZero(decQuad *); | |
| 115 | ||
| 116 | /* Computational (result is a decQuad) */ | |
| 117 | extern decQuad * decQuadAbs(decQuad *, const decQuad *, decContext *); | |
| 118 | extern decQuad * decQuadAdd(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 119 | extern decQuad * decQuadAnd(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 120 | extern decQuad * decQuadDivide(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 121 | extern decQuad * decQuadDivideInteger(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 122 | extern decQuad * decQuadFMA(decQuad *, const decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 123 | extern decQuad * decQuadInvert(decQuad *, const decQuad *, decContext *); | |
| 124 | extern decQuad * decQuadLogB(decQuad *, const decQuad *, decContext *); | |
| 125 | extern decQuad * decQuadMax(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 126 | extern decQuad * decQuadMaxMag(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 127 | extern decQuad * decQuadMin(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 128 | extern decQuad * decQuadMinMag(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 129 | extern decQuad * decQuadMinus(decQuad *, const decQuad *, decContext *); | |
| 130 | extern decQuad * decQuadMultiply(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 131 | extern decQuad * decQuadNextMinus(decQuad *, const decQuad *, decContext *); | |
| 132 | extern decQuad * decQuadNextPlus(decQuad *, const decQuad *, decContext *); | |
| 133 | extern decQuad * decQuadNextToward(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 134 | extern decQuad * decQuadOr(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 135 | extern decQuad * decQuadPlus(decQuad *, const decQuad *, decContext *); | |
| 136 | extern decQuad * decQuadQuantize(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 137 | extern decQuad * decQuadReduce(decQuad *, const decQuad *, decContext *); | |
| 138 | extern decQuad * decQuadRemainder(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 139 | extern decQuad * decQuadRemainderNear(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 140 | extern decQuad * decQuadRotate(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 141 | extern decQuad * decQuadScaleB(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 142 | extern decQuad * decQuadShift(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 143 | extern decQuad * decQuadSubtract(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 144 | extern decQuad * decQuadToIntegralValue(decQuad *, const decQuad *, decContext *, enum rounding); | |
| 145 | extern decQuad * decQuadToIntegralExact(decQuad *, const decQuad *, decContext *); | |
| 146 | extern decQuad * decQuadXor(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 147 | ||
| 148 | /* Comparisons */ | |
| 149 | extern decQuad * decQuadCompare(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 150 | extern decQuad * decQuadCompareSignal(decQuad *, const decQuad *, const decQuad *, decContext *); | |
| 151 | extern decQuad * decQuadCompareTotal(decQuad *, const decQuad *, const decQuad *); | |
| 152 | extern decQuad * decQuadCompareTotalMag(decQuad *, const decQuad *, const decQuad *); | |
| 153 | ||
| 154 | /* Copies */ | |
| 155 | extern decQuad * decQuadCanonical(decQuad *, const decQuad *); | |
| 156 | extern decQuad * decQuadCopy(decQuad *, const decQuad *); | |
| 157 | extern decQuad * decQuadCopyAbs(decQuad *, const decQuad *); | |
| 158 | extern decQuad * decQuadCopyNegate(decQuad *, const decQuad *); | |
| 159 | extern decQuad * decQuadCopySign(decQuad *, const decQuad *, const decQuad *); | |
| 160 | ||
| 161 | /* Non-computational */ | |
| 162 | extern enum decClass decQuadClass(const decQuad *); | |
| 163 | extern const char * decQuadClassString(const decQuad *); | |
| 164 | extern uint32_t decQuadDigits(const decQuad *); | |
| 165 | extern uint32_t decQuadIsCanonical(const decQuad *); | |
| 166 | extern uint32_t decQuadIsFinite(const decQuad *); | |
| 167 | extern uint32_t decQuadIsInteger(const decQuad *); | |
| 168 | extern uint32_t decQuadIsInfinite(const decQuad *); | |
| 169 | extern uint32_t decQuadIsNaN(const decQuad *); | |
| 170 | extern uint32_t decQuadIsNormal(const decQuad *); | |
| 171 | extern uint32_t decQuadIsSignaling(const decQuad *); | |
| 172 | extern uint32_t decQuadIsSignalling(const decQuad *); | |
| 173 | extern uint32_t decQuadIsSigned(const decQuad *); | |
| 174 | extern uint32_t decQuadIsSubnormal(const decQuad *); | |
| 175 | extern uint32_t decQuadIsZero(const decQuad *); | |
| 176 | extern uint32_t decQuadRadix(const decQuad *); | |
| 177 | extern uint32_t decQuadSameQuantum(const decQuad *, const decQuad *); | |
| 178 | extern const char * decQuadVersion(void); | |
| 179 | ||
| 180 | /* decNumber conversions; these are implemented as macros so as not */ | |
| 181 | /* to force a dependency on decimal128 and decNumber in decQuad. */ | |
| 87d32bb7 | 182 | /* decQuadFromNumber returns a decimal128 * to avoid warnings. */ |
| f5bc1778 | 183 | #define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn) |
| 87d32bb7 | 184 | #define decQuadFromNumber(dq, dn, set) decimal128FromNumber((decimal128 *)(dq), dn, set) |
| f5bc1778 DJ |
185 | |
| 186 | #endif |