OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libdecnumber/] [decQuad.h] - Blame information for rev 333

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 271 jeremybenn 
/* decQuad module header for the decNumber C Library.
2 
   Copyright (C) 2007, 2009 Free Software Foundation, Inc.
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
9 
   Software Foundation; either version 3, or (at your option) any later
10 
   version.
11 
 
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 
 
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/>.  */
25 
 
26 
/* ------------------------------------------------------------------ */
27 
/* decQuad.h -- Decimal 128-bit format module header                  */
28 
/* ------------------------------------------------------------------ */
29 
/* This include file is always included by decSingle and decDouble,   */
30 
/* and therefore also holds useful constants used by all three.       */
31 
 
32 
#if !defined(DECQUAD)
33 
  #define DECQUAD
34 
 
35 
  #define DECQUADNAME         "decimalQuad"           /* Short name   */
36 
  #define DECQUADTITLE        "Decimal 128-bit datum" /* Verbose name */
37 
  #define DECQUADAUTHOR       "Mike Cowlishaw"        /* Who to blame */
38 
 
39 
  /* parameters for decQuads */
40 
  #define DECQUAD_Bytes    16      /* length                          */
41 
  #define DECQUAD_Pmax     34      /* maximum precision (digits)      */
42 
  #define DECQUAD_Emin  -6143      /* minimum adjusted exponent       */
43 
  #define DECQUAD_Emax   6144      /* maximum adjusted exponent       */
44 
  #define DECQUAD_EmaxD     4      /* maximum exponent digits         */
45 
  #define DECQUAD_Bias   6176      /* bias for the exponent           */
46 
  #define DECQUAD_String   43      /* maximum string length, +1       */
47 
  #define DECQUAD_EconL    12      /* exponent continuation length    */
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 
 
55 
  /* The decQuad decimal 128-bit type, accessible by all sizes */
56 
  typedef union {
57 
    uint8_t   bytes[DECQUAD_Bytes];     /* fields: 1, 5, 12, 110 bits */
58 
    uint16_t shorts[DECQUAD_Bytes/2];
59 
    uint32_t  words[DECQUAD_Bytes/4];
60 
    #if DECUSE64
61 
    uint64_t  longs[DECQUAD_Bytes/8];
62 
    #endif
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] */
71 
  #define DECFLOAT_Sign  0x80000000     /* 1 00000 00 Sign */
72 
  #define DECFLOAT_NaN   0x7c000000     /* 0 11111 00 NaN generic */
73 
  #define DECFLOAT_qNaN  0x7c000000     /* 0 11111 00 qNaN */
74 
  #define DECFLOAT_sNaN  0x7e000000     /* 0 11111 10 sNaN */
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)
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)    */
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 *);
98 
  extern decQuad * decQuadFromPackedChecked(decQuad *, int32_t, const uint8_t *);
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.     */
182 
  /* decQuadFromNumber returns a decimal128 * to avoid warnings.       */
183 
  #define decQuadToNumber(dq, dn) decimal128ToNumber((decimal128 *)(dq), dn)
184 
  #define decQuadFromNumber(dq, dn, set) decimal128FromNumber((decimal128 *)(dq), dn, set)
185 
 
186 
#endif

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.