| /* decQuad module header for the decNumber C Library. |
| Copyright (C) 2007-2018 Free Software Foundation, Inc. |
| Contributed by IBM Corporation. Author Mike Cowlishaw. |
| |
| 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/>. */ |
| |
| /* ------------------------------------------------------------------ */ |
| /* decQuad.h -- Decimal 128-bit format module header */ |
| /* ------------------------------------------------------------------ */ |
| /* This include file is always included by decSingle and decDouble, */ |
| /* and therefore also holds useful constants used by all three. */ |
| |
| #if !defined(DECQUAD) |
| #define DECQUAD |
| |
| #define DECQUADNAME "decimalQuad" /* Short name */ |
| #define DECQUADTITLE "Decimal 128-bit datum" /* Verbose name */ |
| #define DECQUADAUTHOR "Mike Cowlishaw" /* Who to blame */ |
| |
| /* parameters for decQuads */ |
| #define DECQUAD_Bytes 16 /* length */ |
| #define DECQUAD_Pmax 34 /* maximum precision (digits) */ |
| #define DECQUAD_Emin -6143 /* minimum adjusted exponent */ |
| #define DECQUAD_Emax 6144 /* maximum adjusted exponent */ |
| #define DECQUAD_EmaxD 4 /* maximum exponent digits */ |
| #define DECQUAD_Bias 6176 /* bias for the exponent */ |
| #define DECQUAD_String 43 /* maximum string length, +1 */ |
| #define DECQUAD_EconL 12 /* exponent continuation length */ |
| #define DECQUAD_Declets 11 /* count of declets */ |
| /* highest biased exponent (Elimit-1) */ |
| #define DECQUAD_Ehigh (DECQUAD_Emax + DECQUAD_Bias - (DECQUAD_Pmax-1)) |
| |
| /* Required include */ |
| #include "decContext.h" |
| |
| /* The decQuad decimal 128-bit type, accessible by all sizes */ |
| typedef union { |
| uint8_t bytes[DECQUAD_Bytes]; /* fields: 1, 5, 12, 110 bits */ |
| uint16_t shorts[DECQUAD_Bytes/2]; |
| uint32_t words[DECQUAD_Bytes/4]; |
| #if DECUSE64 |
| uint64_t longs[DECQUAD_Bytes/8]; |
| #endif |
| } decQuad; |
| |
| /* ---------------------------------------------------------------- */ |
| /* Shared constants */ |
| /* ---------------------------------------------------------------- */ |
| |
| /* sign and special values [top 32-bits; last two bits are don't-care |
| for Infinity on input, last bit don't-care for NaNs] */ |
| #define DECFLOAT_Sign 0x80000000 /* 1 00000 00 Sign */ |
| #define DECFLOAT_NaN 0x7c000000 /* 0 11111 00 NaN generic */ |
| #define DECFLOAT_qNaN 0x7c000000 /* 0 11111 00 qNaN */ |
| #define DECFLOAT_sNaN 0x7e000000 /* 0 11111 10 sNaN */ |
| #define DECFLOAT_Inf 0x78000000 /* 0 11110 00 Infinity */ |
| #define DECFLOAT_MinSp 0x78000000 /* minimum special value */ |
| /* [specials are all >=MinSp] */ |
| /* Sign nibble constants */ |
| #if !defined(DECPPLUSALT) |
| #define DECPPLUSALT 0x0A /* alternate plus nibble */ |
| #define DECPMINUSALT 0x0B /* alternate minus nibble */ |
| #define DECPPLUS 0x0C /* preferred plus nibble */ |
| #define DECPMINUS 0x0D /* preferred minus nibble */ |
| #define DECPPLUSALT2 0x0E /* alternate plus nibble */ |
| #define DECPUNSIGNED 0x0F /* alternate plus nibble (unsigned) */ |
| #endif |
| |
| /* ---------------------------------------------------------------- */ |
| /* Routines -- implemented as decFloat routines in common files */ |
| /* ---------------------------------------------------------------- */ |
| |
| #include "decQuadSymbols.h" |
| |
| /* Utilities and conversions, extractors, etc.) */ |
| extern decQuad * decQuadFromBCD(decQuad *, int32_t, const uint8_t *, int32_t); |
| extern decQuad * decQuadFromInt32(decQuad *, int32_t); |
| extern decQuad * decQuadFromPacked(decQuad *, int32_t, const uint8_t *); |
| extern decQuad * decQuadFromPackedChecked(decQuad *, int32_t, const uint8_t *); |
| extern decQuad * decQuadFromString(decQuad *, const char *, decContext *); |
| extern decQuad * decQuadFromUInt32(decQuad *, uint32_t); |
| extern int32_t decQuadGetCoefficient(const decQuad *, uint8_t *); |
| extern int32_t decQuadGetExponent(const decQuad *); |
| extern decQuad * decQuadSetCoefficient(decQuad *, const uint8_t *, int32_t); |
| extern decQuad * decQuadSetExponent(decQuad *, decContext *, int32_t); |
| extern void decQuadShow(const decQuad *, const char *); |
| extern int32_t decQuadToBCD(const decQuad *, int32_t *, uint8_t *); |
| extern char * decQuadToEngString(const decQuad *, char *); |
| extern int32_t decQuadToInt32(const decQuad *, decContext *, enum rounding); |
| extern int32_t decQuadToInt32Exact(const decQuad *, decContext *, enum rounding); |
| extern int32_t decQuadToPacked(const decQuad *, int32_t *, uint8_t *); |
| extern char * decQuadToString(const decQuad *, char *); |
| extern uint32_t decQuadToUInt32(const decQuad *, decContext *, enum rounding); |
| extern uint32_t decQuadToUInt32Exact(const decQuad *, decContext *, enum rounding); |
| extern decQuad * decQuadZero(decQuad *); |
| |
| /* Computational (result is a decQuad) */ |
| extern decQuad * decQuadAbs(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadAdd(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadAnd(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadDivide(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadDivideInteger(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadFMA(decQuad *, const decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadInvert(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadLogB(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadMax(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadMaxMag(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadMin(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadMinMag(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadMinus(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadMultiply(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadNextMinus(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadNextPlus(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadNextToward(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadOr(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadPlus(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadQuantize(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadReduce(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadRemainder(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadRemainderNear(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadRotate(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadScaleB(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadShift(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadSubtract(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadToIntegralValue(decQuad *, const decQuad *, decContext *, enum rounding); |
| extern decQuad * decQuadToIntegralExact(decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadXor(decQuad *, const decQuad *, const decQuad *, decContext *); |
| |
| /* Comparisons */ |
| extern decQuad * decQuadCompare(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadCompareSignal(decQuad *, const decQuad *, const decQuad *, decContext *); |
| extern decQuad * decQuadCompareTotal(decQuad *, const decQuad *, const decQuad *); |
| extern decQuad * decQuadCompareTotalMag(decQuad *, const decQuad *, const decQuad *); |
| |
| /* Copies */ |
| extern decQuad * decQuadCanonical(decQuad *, const decQuad *); |
| extern decQuad * decQuadCopy(decQuad *, const decQuad *); |
| extern decQuad * decQuadCopyAbs(decQuad *, const decQuad *); |
| extern decQuad * decQuadCopyNegate(decQuad *, const decQuad *); |
| extern decQuad * decQuadCopySign(decQuad *, const decQuad *, const decQuad *); |
| |
| /* Non-computational */ |
| extern enum decClass decQuadClass(const decQuad *); |
| extern const char * decQuadClassString(const decQuad *); |
| extern uint32_t decQuadDigits(const decQuad *); |
| extern uint32_t decQuadIsCanonical(const decQuad *); |
| extern uint32_t decQuadIsFinite(const decQuad *); |
| extern uint32_t decQuadIsInteger(const decQuad *); |
| extern uint32_t decQuadIsInfinite(const decQuad *); |
| extern uint32_t decQuadIsNaN(const decQuad *); |
| extern uint32_t decQuadIsNormal(const decQuad *); |
| extern uint32_t decQuadIsSignaling(const decQuad *); |
| extern uint32_t decQuadIsSignalling(const decQuad *); |
| extern uint32_t decQuadIsSigned(const decQuad *); |
| extern uint32_t decQuadIsSubnormal(const decQuad *); |
| extern uint32_t decQuadIsZero(const decQuad *); |
| extern uint32_t decQuadRadix(const decQuad *); |
| extern uint32_t decQuadSameQuantum(const decQuad *, const decQuad *); |
| extern const char * decQuadVersion(void); |
| |
| /* decNumber conversions; these are implemented as macros so as not */ |
| /* to force a dependency on decimal128 and decNumber in decQuad. */ |
| /* decQuadFromNumber returns a decimal128 * to avoid warnings. */ |
| #define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn) |
| #define decQuadFromNumber(dq, dn, set) decimal128FromNumber((decimal128 *)(dq), dn, set) |
| |
| #endif |