| | 1 | /* decSingle module header for the decNumber C Library. |
| | 2 | Copyright (C) 2005-2018 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 | /* decSingle.h -- Decimal 32-bit format module header */ |
| | 28 | /* ------------------------------------------------------------------ */ |
| | 29 | |
| | 30 | #if !defined(DECSINGLE) |
| | 31 | #define DECSINGLE |
| | 32 | |
| | 33 | #define DECSINGLENAME "decSingle" /* Short name */ |
| | 34 | #define DECSINGLETITLE "Decimal 32-bit datum" /* Verbose name */ |
| | 35 | #define DECSINGLEAUTHOR "Mike Cowlishaw" /* Who to blame */ |
| | 36 | |
| | 37 | /* parameters for decSingles */ |
| | 38 | #define DECSINGLE_Bytes 4 /* length */ |
| | 39 | #define DECSINGLE_Pmax 7 /* maximum precision (digits) */ |
| | 40 | #define DECSINGLE_Emin -95 /* minimum adjusted exponent */ |
| | 41 | #define DECSINGLE_Emax 96 /* maximum adjusted exponent */ |
| | 42 | #define DECSINGLE_EmaxD 3 /* maximum exponent digits */ |
| | 43 | #define DECSINGLE_Bias 101 /* bias for the exponent */ |
| | 44 | #define DECSINGLE_String 16 /* maximum string length, +1 */ |
| | 45 | #define DECSINGLE_EconL 6 /* exponent continuation length */ |
| | 46 | #define DECSINGLE_Declets 2 /* count of declets */ |
| | 47 | /* highest biased exponent (Elimit-1) */ |
| | 48 | #define DECSINGLE_Ehigh (DECSINGLE_Emax + DECSINGLE_Bias - (DECSINGLE_Pmax-1)) |
| | 49 | |
| | 50 | /* Required includes */ |
| | 51 | #include "decContext.h" |
| | 52 | #include "decQuad.h" |
| | 53 | #include "decDouble.h" |
| | 54 | |
| | 55 | /* The decSingle decimal 32-bit type, accessible by all sizes */ |
| | 56 | typedef union { |
| | 57 | uint8_t bytes[DECSINGLE_Bytes]; /* fields: 1, 5, 6, 20 bits */ |
| | 58 | uint16_t shorts[DECSINGLE_Bytes/2]; |
| | 59 | uint32_t words[DECSINGLE_Bytes/4]; |
| | 60 | } decSingle; |
| | 61 | |
| | 62 | /* ---------------------------------------------------------------- */ |
| | 63 | /* Routines -- implemented as decFloat routines in common files */ |
| | 64 | /* ---------------------------------------------------------------- */ |
| | 65 | |
| | 66 | #include "decSingleSymbols.h" |
| | 67 | |
| | 68 | /* Utilities (binary argument(s) or result, extractors, etc.) */ |
| | 69 | extern decSingle * decSingleFromBCD(decSingle *, int32_t, const uint8_t *, int32_t); |
| | 70 | extern decSingle * decSingleFromPacked(decSingle *, int32_t, const uint8_t *); |
| | 71 | extern decSingle * decSingleFromPackedChecked(decSingle *, int32_t, const uint8_t *); |
| | 72 | extern decSingle * decSingleFromString(decSingle *, const char *, decContext *); |
| | 73 | extern decSingle * decSingleFromWider(decSingle *, const decDouble *, decContext *); |
| | 74 | extern int32_t decSingleGetCoefficient(const decSingle *, uint8_t *); |
| | 75 | extern int32_t decSingleGetExponent(const decSingle *); |
| | 76 | extern decSingle * decSingleSetCoefficient(decSingle *, const uint8_t *, int32_t); |
| | 77 | extern decSingle * decSingleSetExponent(decSingle *, decContext *, int32_t); |
| | 78 | extern void decSingleShow(const decSingle *, const char *); |
| | 79 | extern int32_t decSingleToBCD(const decSingle *, int32_t *, uint8_t *); |
| | 80 | extern char * decSingleToEngString(const decSingle *, char *); |
| | 81 | extern int32_t decSingleToPacked(const decSingle *, int32_t *, uint8_t *); |
| | 82 | extern char * decSingleToString(const decSingle *, char *); |
| | 83 | extern decDouble * decSingleToWider(const decSingle *, decDouble *); |
| | 84 | extern decSingle * decSingleZero(decSingle *); |
| | 85 | |
| | 86 | /* (No Arithmetic routines for decSingle) */ |
| | 87 | |
| | 88 | /* Non-computational */ |
| | 89 | extern uint32_t decSingleRadix(const decSingle *); |
| | 90 | extern const char * decSingleVersion(void); |
| | 91 | |
| | 92 | /* decNumber conversions; these are implemented as macros so as not */ |
| | 93 | /* to force a dependency on decimal32 and decNumber in decSingle. */ |
| | 94 | /* decSingleFromNumber returns a decimal32 * to avoid warnings. */ |
| | 95 | #define decSingleToNumber(dq, dn) decimal32ToNumber((decimal32 *)(dq), dn) |
| | 96 | #define decSingleFromNumber(dq, dn, set) decimal32FromNumber((decimal32 *)(dq), dn, set) |
| | 97 | |
| | 98 | #endif |
projects / deliverable / binutils-gdb.git / blame_incremental