mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-21 01:12:32 +08:00
187 lines
10 KiB
C
187 lines
10 KiB
C
/* decQuad module header for the decNumber C Library.
|
|
Copyright (C) 2007, 2009 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
|