164339d36f8bd4db5025fe2988eda22b491a9219cFredrik Roubert// Copyright (C) 2016 and later: Unicode, Inc. and others. 264339d36f8bd4db5025fe2988eda22b491a9219cFredrik Roubert// License & terms of use: http://www.unicode.org/copyright.html 350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ------------------------------------------------------------------ */ 450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* decNumber package local type, tuning, and macro definitions */ 550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ------------------------------------------------------------------ */ 68de051c3d18a56cc126f0f44e368495a52f9148cFredrik Roubert/* Copyright (c) IBM Corporation, 2000-2016. All rights reserved. */ 750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* */ 850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* This software is made available under the terms of the */ 950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ICU License -- ICU 1.8.1 and later. */ 1050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* */ 1150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* The description and User's Guide ("The decNumber C Library") for */ 1250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* this software is called decNumber.pdf. This document is */ 1350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* available, together with arithmetic and format specifications, */ 1450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* testcases, and Web links, on the General Decimal Arithmetic page. */ 1550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* */ 1650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* Please send comments, suggestions, and corrections to the author: */ 1750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* mfc@uk.ibm.com */ 1850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* Mike Cowlishaw, IBM Fellow */ 1950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK */ 2050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ------------------------------------------------------------------ */ 2150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* This header file is included by all modules in the decNumber */ 2250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* library, and contains local type definitions, tuning parameters, */ 2350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* etc. It should not need to be used by application programs. */ 2450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* decNumber.h or one of decDouble (etc.) must be included first. */ 2550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* ------------------------------------------------------------------ */ 2650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 2750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho#if !defined(DECNUMBERLOC) 2850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNUMBERLOC 2950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECVERSION "decNumber 3.61" /* Package Version [16 max.] */ 3050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNLAUTHOR "Mike Cowlishaw" /* Who to blame */ 3150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 3250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #include <stdlib.h> /* for abs */ 3350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #include <string.h> /* for memset, strcpy */ 348de051c3d18a56cc126f0f44e368495a52f9148cFredrik Roubert #include "decContext.h" 3550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 3650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Conditional code flag -- set this to match hardware platform */ 3750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECLITEND) 3850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECLITEND 1 /* 1=little-endian, 0=big-endian */ 3950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 4050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 4150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Conditional code flag -- set this to 1 for best performance */ 4250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECUSE64) 4350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECUSE64 1 /* 1=use int64s, 0=int32 & smaller only */ 4450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 4550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 4650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Conditional check flags -- set these to 0 for best performance */ 4750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECCHECK) 4850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECCHECK 0 /* 1 to enable robust checking */ 4950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 5050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECALLOC) 5150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECALLOC 0 /* 1 to enable memory accounting */ 5250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 5350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECTRACE) 5450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECTRACE 0 /* 1 to trace certain internals, etc. */ 5550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 5650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 5750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Tuning parameter for decNumber (arbitrary precision) module */ 5850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if !defined(DECBUFFER) 5950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECBUFFER 36 /* Size basis for local buffers. This */ 6050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* should be a common maximum precision */ 6150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* rounded up to a multiple of 4; must */ 6250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* be zero or positive. */ 6350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 6450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 6550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 6650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Definitions for all modules (general-purpose) */ 6750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 6850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 6950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Local names for common types -- for safety, decNumber modules do */ 7050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* not use int or long directly. */ 7150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define Flag uint8_t 7250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define Byte int8_t 7350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define uByte uint8_t 7450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define Short int16_t 7550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define uShort uint16_t 7650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define Int int32_t 7750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define uInt uint32_t 7850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define Unit decNumberUnit 7950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECUSE64 8050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define Long int64_t 8150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define uLong uint64_t 8250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 8350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 8450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Development-use definitions */ 8550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho typedef long int LI; /* for printf arguments only */ 8650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNOINT 0 /* 1 to check no internal use of 'int' */ 8750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* or stdint types */ 8850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECNOINT 8950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* if these interfere with your C includes, do not set DECNOINT */ 9050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define int ? /* enable to ensure that plain C 'int' */ 9150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define long ?? /* .. or 'long' types are not used */ 9250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 9350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 9450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* LONGMUL32HI -- set w=(u*v)>>32, where w, u, and v are uInts */ 9550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* (that is, sets w to be the high-order word of the 64-bit result; */ 9650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* the low-order word is simply u*v.) */ 9750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* This version is derived from Knuth via Hacker's Delight; */ 9850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* it seems to optimize better than some others tried */ 9950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define LONGMUL32HI(w, u, v) { \ 10050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt u0, u1, v0, v1, w0, w1, w2, t; \ 10150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho u0=u & 0xffff; u1=u>>16; \ 10250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho v0=v & 0xffff; v1=v>>16; \ 10350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho w0=u0*v0; \ 10450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho t=u1*v0 + (w0>>16); \ 10550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho w1=t & 0xffff; w2=t>>16; \ 10650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho w1=u0*v1 + w1; \ 10750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (w)=u1*v1 + w2 + (w1>>16);} 10850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 10950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ROUNDUP -- round an integer up to a multiple of n */ 11050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ROUNDUP(i, n) ((((i)+(n)-1)/n)*n) 11150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ROUNDUP4(i) (((i)+3)&~3) /* special for n=4 */ 11250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 11350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ROUNDDOWN -- round an integer down to a multiple of n */ 11450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ROUNDDOWN(i, n) (((i)/n)*n) 11550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ROUNDDOWN4(i) ((i)&~3) /* special for n=4 */ 11650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 11750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* References to multi-byte sequences under different sizes; these */ 11850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* require locally declared variables, but do not violate strict */ 11950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* aliasing or alignment (as did the UINTAT simple cast to uInt). */ 12050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Variables needed are uswork, uiwork, etc. [so do not use at same */ 12150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* level in an expression, e.g., UBTOUI(x)==UBTOUI(y) may fail]. */ 12250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 12350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Return a uInt, etc., from bytes starting at a char* or uByte* */ 12450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define UBTOUS(b) (memcpy((void *)&uswork, b, 2), uswork) 12550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define UBTOUI(b) (memcpy((void *)&uiwork, b, 4), uiwork) 12650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 12750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Store a uInt, etc., into bytes starting at a char* or uByte*. */ 12850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Returns i, evaluated, for convenience; has to use uiwork because */ 12950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* i may be an expression. */ 13050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define UBFROMUS(b, i) (uswork=(i), memcpy(b, (void *)&uswork, 2), uswork) 13150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define UBFROMUI(b, i) (uiwork=(i), memcpy(b, (void *)&uiwork, 4), uiwork) 13250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 13350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* X10 and X100 -- multiply integer i by 10 or 100 */ 13450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* [shifts are usually faster than multiply; could be conditional] */ 13550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define X10(i) (((i)<<1)+((i)<<3)) 13650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define X100(i) (((i)<<2)+((i)<<5)+((i)<<6)) 13750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 13850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* MAXI and MINI -- general max & min (not in ANSI) for integers */ 13950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define MAXI(x,y) ((x)<(y)?(y):(x)) 14050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define MINI(x,y) ((x)>(y)?(y):(x)) 14150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 14250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Useful constants */ 14350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define BILLION 1000000000 /* 10**9 */ 14450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* CHARMASK: 0x30303030 for ASCII/UTF8; 0xF0F0F0F0 for EBCDIC */ 14550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define CHARMASK ((((((((uInt)'0')<<8)+'0')<<8)+'0')<<8)+'0') 14650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 14750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 14850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 14950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Definitions for arbitary-precision modules (only valid after */ 15050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* decNumber.h has been included) */ 15150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 15250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 15350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Limits and constants */ 15450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNUMMAXP 999999999 /* maximum precision code can handle */ 15550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNUMMAXE 999999999 /* maximum adjusted exponent ditto */ 15650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECNUMMINE -999999999 /* minimum adjusted exponent ditto */ 15750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if (DECNUMMAXP != DEC_MAX_DIGITS) 15850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #error Maximum digits mismatch 15950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 16050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if (DECNUMMAXE != DEC_MAX_EMAX) 16150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #error Maximum exponent mismatch 16250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 16350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if (DECNUMMINE != DEC_MIN_EMIN) 16450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #error Minimum exponent mismatch 16550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 16650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 16750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Set DECDPUNMAX -- the maximum integer that fits in DECDPUN */ 16850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* digits, and D2UTABLE -- the initializer for the D2U table */ 16950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECDPUN==1 17050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 9 17150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17, \ 17250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 18,19,20,21,22,23,24,25,26,27,28,29,30,31,32, \ 17350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 33,34,35,36,37,38,39,40,41,42,43,44,45,46,47, \ 17450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 48,49} 17550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==2 17650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 99 17750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10, \ 17850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 11,11,12,12,13,13,14,14,15,15,16,16,17,17,18, \ 17950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 18,19,19,20,20,21,21,22,22,23,23,24,24,25} 18050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==3 18150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 999 18250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7, \ 18350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 8,8,8,9,9,9,10,10,10,11,11,11,12,12,12,13,13, \ 18450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 13,14,14,14,15,15,15,16,16,16,17} 18550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==4 18650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 9999 18750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,6, \ 18850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 6,6,6,7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,11, \ 18950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 11,11,11,12,12,12,12,13} 19050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==5 19150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 99999 19250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,1,1,1,2,2,2,2,2,3,3,3,3,3,4,4,4,4,4,5, \ 19350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 5,5,5,5,6,6,6,6,6,7,7,7,7,7,8,8,8,8,8,9,9,9, \ 19450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 9,9,10,10,10,10} 19550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==6 19650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 999999 19750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,1,1,1,1,2,2,2,2,2,2,3,3,3,3,3,3,4,4,4, \ 19850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,7,7,7,7,7,7,8, \ 19950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 8,8,8,8,8,9} 20050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==7 20150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 9999999 20250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,3, \ 20350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 4,4,4,4,4,4,4,5,5,5,5,5,5,5,6,6,6,6,6,6,6,7, \ 20450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 7,7,7,7,7,7} 20550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==8 20650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 99999999 20750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,3,3,3,3,3, \ 20850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,6,6,6, \ 20950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 6,6,6,6,6,7} 21050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==9 21150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECDPUNMAX 999999999 21250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2UTABLE {0,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,3,3,3, \ 21350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5, \ 21450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 5,5,6,6,6,6} 21550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif defined(DECDPUN) 21650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #error DECDPUN must be in the range 1-9 21750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 21850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 21950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ----- Shared data (in decNumber.c) ----- */ 22050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Public lookup table used by the D2U macro (see below) */ 22150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECMAXD2U 49 22254dcd9b6a06071f647dac967e9e267abb9410720Craig Cornelius /*extern const uByte d2utable[DECMAXD2U+1];*/ 22350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 22450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ----- Macros ----- */ 22550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ISZERO -- return true if decNumber dn is a zero */ 22650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* [performance-critical in some situations] */ 22750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ISZERO(dn) decNumberIsZero(dn) /* now just a local name */ 22850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 22950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* D2U -- return the number of Units needed to hold d digits */ 23050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* (runtime version, with table lookaside for small d) */ 23150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECDPUN==8 23250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2U(d) ((unsigned)((d)<=DECMAXD2U?d2utable[d]:((d)+7)>>3)) 23350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECDPUN==4 23450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2U(d) ((unsigned)((d)<=DECMAXD2U?d2utable[d]:((d)+3)>>2)) 23550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #else 23650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2U(d) ((d)<=DECMAXD2U?d2utable[d]:((d)+DECDPUN-1)/DECDPUN) 23750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 23850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* SD2U -- static D2U macro (for compile-time calculation) */ 23950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define SD2U(d) (((d)+DECDPUN-1)/DECDPUN) 24050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 24150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* MSUDIGITS -- returns digits in msu, from digits, calculated */ 24250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* using D2U */ 24350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define MSUDIGITS(d) ((d)-(D2U(d)-1)*DECDPUN) 24450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 24550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* D2N -- return the number of decNumber structs that would be */ 24650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* needed to contain that number of digits (and the initial */ 24750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* decNumber struct) safely. Note that one Unit is included in the */ 24850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* initial structure. Used for allocating space that is aligned on */ 24950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* a decNumber struct boundary. */ 25050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define D2N(d) \ 25150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ((((SD2U(d)-1)*sizeof(Unit))+sizeof(decNumber)*2-1)/sizeof(decNumber)) 25250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 25350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* TODIGIT -- macro to remove the leading digit from the unsigned */ 25450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* integer u at column cut (counting from the right, LSD=0) and */ 25550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* place it as an ASCII character into the character pointed to by */ 25650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* c. Note that cut must be <= 9, and the maximum value for u is */ 25750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* 2,000,000,000 (as is needed for negative exponents of */ 25850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* subnormals). The unsigned integer pow is used as a temporary */ 25950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* variable. */ 26050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define TODIGIT(u, cut, c, pow) { \ 26150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho *(c)='0'; \ 26250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho pow=DECPOWERS[cut]*2; \ 26350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if ((u)>pow) { \ 26450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho pow*=4; \ 26550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if ((u)>=pow) {(u)-=pow; *(c)+=8;} \ 26650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho pow/=2; \ 26750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if ((u)>=pow) {(u)-=pow; *(c)+=4;} \ 26850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho pow/=2; \ 26950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } \ 27050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if ((u)>=pow) {(u)-=pow; *(c)+=2;} \ 27150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho pow/=2; \ 27250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if ((u)>=pow) {(u)-=pow; *(c)+=1;} \ 27350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } 27450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 27550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 27650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Definitions for fixed-precision modules (only valid after */ 27750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* decSingle.h, decDouble.h, or decQuad.h has been included) */ 27850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ---------------------------------------------------------------- */ 27950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 28050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* bcdnum -- a structure describing a format-independent finite */ 28150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* number, whose coefficient is a string of bcd8 uBytes */ 28250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho typedef struct { 28350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uByte *msd; /* -> most significant digit */ 28450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uByte *lsd; /* -> least ditto */ 28550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sign; /* 0=positive, DECFLOAT_Sign=negative */ 28650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho Int exponent; /* Unadjusted signed exponent (q), or */ 28750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DECFLOAT_NaN etc. for a special */ 28850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho } bcdnum; 28950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 29050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Test if exponent or bcdnum exponent must be a special, etc. */ 29150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define EXPISSPECIAL(exp) ((exp)>=DECFLOAT_MinSp) 29250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define EXPISINF(exp) (exp==DECFLOAT_Inf) 29350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define EXPISNAN(exp) (exp==DECFLOAT_qNaN || exp==DECFLOAT_sNaN) 29450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define NUMISSPECIAL(num) (EXPISSPECIAL((num)->exponent)) 29550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 29650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Refer to a 32-bit word or byte in a decFloat (df) by big-endian */ 29750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* (array) notation (the 0 word or byte contains the sign bit), */ 29850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* automatically adjusting for endianness; similarly address a word */ 29950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* in the next-wider format (decFloatWider, or dfw) */ 30050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECWORDS (DECBYTES/4) 30150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECWWORDS (DECWBYTES/4) 30250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECLITEND 30350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFBYTE(df, off) ((df)->bytes[DECBYTES-1-(off)]) 30450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFWORD(df, off) ((df)->words[DECWORDS-1-(off)]) 30550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFWWORD(dfw, off) ((dfw)->words[DECWWORDS-1-(off)]) 30650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #else 30750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFBYTE(df, off) ((df)->bytes[off]) 30850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFWORD(df, off) ((df)->words[off]) 30950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFWWORD(dfw, off) ((dfw)->words[off]) 31050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 31150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 31250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Tests for sign or specials, directly on DECFLOATs */ 31350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISSIGNED(df) (DFWORD(df, 0)&0x80000000) 31450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISSPECIAL(df) ((DFWORD(df, 0)&0x78000000)==0x78000000) 31550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISINF(df) ((DFWORD(df, 0)&0x7c000000)==0x78000000) 31650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISNAN(df) ((DFWORD(df, 0)&0x7c000000)==0x7c000000) 31750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISQNAN(df) ((DFWORD(df, 0)&0x7e000000)==0x7c000000) 31850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISSNAN(df) ((DFWORD(df, 0)&0x7e000000)==0x7e000000) 31950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 32050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Shared lookup tables */ 32150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho extern const uInt DECCOMBMSD[64]; /* Combination field -> MSD */ 32250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho extern const uInt DECCOMBFROM[48]; /* exp+msd -> Combination */ 32350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 32450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Private generic (utility) routine */ 32550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECCHECK || DECTRACE 32650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho extern void decShowNum(const bcdnum *, const char *); 32750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 32850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 32950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Format-dependent macros and constants */ 33050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if defined(DECPMAX) 33150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 33250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Useful constants */ 33350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DECPMAX9 (ROUNDUP(DECPMAX, 9)/9) /* 'Pmax' in 10**9s */ 33450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Top words for a zero */ 33550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define SINGLEZERO 0x22500000 33650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DOUBLEZERO 0x22380000 33750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define QUADZERO 0x22080000 33850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* [ZEROWORD is defined to be one of these in the DFISZERO macro] */ 33950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 34050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Format-dependent common tests: */ 34150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DFISZERO -- test for (any) zero */ 34250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DFISCCZERO -- test for coefficient continuation being zero */ 34350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DFISCC01 -- test for coefficient contains only 0s and 1s */ 34450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DFISINT -- test for finite and exponent q=0 */ 34550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DFISUINT01 -- test for sign=0, finite, exponent q=0, and */ 34650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* MSD=0 or 1 */ 34750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* ZEROWORD is also defined here. */ 34850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* In DFISZERO the first test checks the least-significant word */ 34950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* (most likely to be non-zero); the penultimate tests MSD and */ 35050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* DPDs in the signword, and the final test excludes specials and */ 35150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* MSD>7. DFISINT similarly has to allow for the two forms of */ 35250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* MSD codes. DFISUINT01 only has to allow for one form of MSD */ 35350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* code. */ 35450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECPMAX==7 35550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ZEROWORD SINGLEZERO 35650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* [test macros not needed except for Zero] */ 35750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISZERO(df) ((DFWORD(df, 0)&0x1c0fffff)==0 \ 35850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 0)&0x60000000)!=0x60000000) 35950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==16 36050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ZEROWORD DOUBLEZERO 36150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISZERO(df) ((DFWORD(df, 1)==0 \ 36250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 0)&0x1c03ffff)==0 \ 36350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 0)&0x60000000)!=0x60000000)) 36450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISINT(df) ((DFWORD(df, 0)&0x63fc0000)==0x22380000 \ 36550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ||(DFWORD(df, 0)&0x7bfc0000)==0x6a380000) 36650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISUINT01(df) ((DFWORD(df, 0)&0xfbfc0000)==0x22380000) 36750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISCCZERO(df) (DFWORD(df, 1)==0 \ 36850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 0)&0x0003ffff)==0) 36950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISCC01(df) ((DFWORD(df, 0)&~0xfffc9124)==0 \ 37050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 1)&~0x49124491)==0) 37150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==34 37250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ZEROWORD QUADZERO 37350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISZERO(df) ((DFWORD(df, 3)==0 \ 37450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && DFWORD(df, 2)==0 \ 37550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && DFWORD(df, 1)==0 \ 37650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 0)&0x1c003fff)==0 \ 37750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 0)&0x60000000)!=0x60000000)) 37850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISINT(df) ((DFWORD(df, 0)&0x63ffc000)==0x22080000 \ 37950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ||(DFWORD(df, 0)&0x7bffc000)==0x6a080000) 38050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISUINT01(df) ((DFWORD(df, 0)&0xfbffc000)==0x22080000) 38150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISCCZERO(df) (DFWORD(df, 3)==0 \ 38250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && DFWORD(df, 2)==0 \ 38350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && DFWORD(df, 1)==0 \ 38450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 0)&0x00003fff)==0) 38550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 38650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFISCC01(df) ((DFWORD(df, 0)&~0xffffc912)==0 \ 38750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 1)&~0x44912449)==0 \ 38850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 2)&~0x12449124)==0 \ 38950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && (DFWORD(df, 3)&~0x49124491)==0) 39050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 39150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 39250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macros to test if a certain 10 bits of a uInt or pair of uInts */ 39350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* are a canonical declet [higher or lower bits are ignored]. */ 39450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* declet is at offset 0 (from the right) in a uInt: */ 39550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define CANONDPD(dpd) (((dpd)&0x300)==0 || ((dpd)&0x6e)!=0x6e) 39650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* declet is at offset k (a multiple of 2) in a uInt: */ 39750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define CANONDPDOFF(dpd, k) (((dpd)&(0x300<<(k)))==0 \ 39850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho || ((dpd)&(((uInt)0x6e)<<(k)))!=(((uInt)0x6e)<<(k))) 39950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* declet is at offset k (a multiple of 2) in a pair of uInts: */ 40050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* [the top 2 bits will always be in the more-significant uInt] */ 40150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define CANONDPDTWO(hi, lo, k) (((hi)&(0x300>>(32-(k))))==0 \ 40250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho || ((hi)&(0x6e>>(32-(k))))!=(0x6e>>(32-(k))) \ 40350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho || ((lo)&(((uInt)0x6e)<<(k)))!=(((uInt)0x6e)<<(k))) 40450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 40550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macro to test whether a full-length (length DECPMAX) BCD8 */ 40650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* coefficient, starting at uByte u, is all zeros */ 40750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Test just the LSWord first, then the remainder as a sequence */ 40850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* of tests in order to avoid same-level use of UBTOUI */ 40950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECPMAX==7 41050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ISCOEFFZERO(u) ( \ 41150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UBTOUI((u)+DECPMAX-4)==0 \ 41250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUS((u)+DECPMAX-6)==0 \ 41350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && *(u)==0) 41450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==16 41550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ISCOEFFZERO(u) ( \ 41650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UBTOUI((u)+DECPMAX-4)==0 \ 41750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-8)==0 \ 41850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-12)==0 \ 41950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI(u)==0) 42050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==34 42150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ISCOEFFZERO(u) ( \ 42250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UBTOUI((u)+DECPMAX-4)==0 \ 42350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-8)==0 \ 42450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-12)==0 \ 42550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-16)==0 \ 42650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-20)==0 \ 42750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-24)==0 \ 42850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-28)==0 \ 42950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUI((u)+DECPMAX-32)==0 \ 43050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho && UBTOUS(u)==0) 43150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 43250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 43350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macros and masks for the exponent continuation field and MSD */ 43450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Get the exponent continuation from a decFloat *df as an Int */ 43550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETECON(df) ((Int)((DFWORD((df), 0)&0x03ffffff)>>(32-6-DECECONL))) 43650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Ditto, from the next-wider format */ 43750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETWECON(df) ((Int)((DFWWORD((df), 0)&0x03ffffff)>>(32-6-DECWECONL))) 43850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Get the biased exponent similarly */ 43950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETEXP(df) ((Int)(DECCOMBEXP[DFWORD((df), 0)>>26]+GETECON(df))) 44050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Get the unbiased exponent similarly */ 44150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETEXPUN(df) ((Int)GETEXP(df)-DECBIAS) 44250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Get the MSD similarly (as uInt) */ 44350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETMSD(df) (DECCOMBMSD[DFWORD((df), 0)>>26]) 44450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 44550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Compile-time computes of the exponent continuation field masks */ 44650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* full exponent continuation field: */ 44750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ECONMASK ((0x03ffffff>>(32-6-DECECONL))<<(32-6-DECECONL)) 44850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* same, not including its first digit (the qNaN/sNaN selector): */ 44950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ECONNANMASK ((0x01ffffff>>(32-6-DECECONL))<<(32-6-DECECONL)) 45050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 45150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macros to decode the coefficient in a finite decFloat *df into */ 45250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* a BCD string (uByte *bcdin) of length DECPMAX uBytes. */ 45350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 45450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* In-line sequence to convert least significant 10 bits of uInt */ 45550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* dpd to three BCD8 digits starting at uByte u. Note that an */ 45650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* extra byte is written to the right of the three digits because */ 45750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* four bytes are moved at a time for speed; the alternative */ 45850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* macro moves exactly three bytes (usually slower). */ 45950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define dpd2bcd8(u, dpd) memcpy(u, &DPD2BCD8[((dpd)&0x3ff)*4], 4) 46050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define dpd2bcd83(u, dpd) memcpy(u, &DPD2BCD8[((dpd)&0x3ff)*4], 3) 46150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 46250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Decode the declets. After extracting each one, it is decoded */ 46350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* to BCD8 using a table lookup (also used for variable-length */ 46450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* decode). Each DPD decode is 3 bytes BCD8 plus a one-byte */ 46550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* length which is not used, here). Fixed-length 4-byte moves */ 46650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* are fast, however, almost everywhere, and so are used except */ 46750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* for the final three bytes (to avoid overrun). The code below */ 46850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* is 36 instructions for Doubles and about 70 for Quads, even */ 46950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* on IA32. */ 47050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 47150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Two macros are defined for each format: */ 47250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* GETCOEFF extracts the coefficient of the current format */ 47350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* GETWCOEFF extracts the coefficient of the next-wider format. */ 47450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* The latter is a copy of the next-wider GETCOEFF using DFWWORD. */ 47550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 47650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECPMAX==7 47750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFF(df, bcd) { \ 47850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWORD(df, 0); \ 47950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho *(bcd)=(uByte)DECCOMBMSD[sourhi>>26]; \ 48050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+1, sourhi>>10); \ 48150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd83(bcd+4, sourhi);} 48250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETWCOEFF(df, bcd) { \ 48350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWWORD(df, 0); \ 48450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourlo=DFWWORD(df, 1); \ 48550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho *(bcd)=(uByte)DECCOMBMSD[sourhi>>26]; \ 48650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+1, sourhi>>8); \ 48750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+4, (sourhi<<2) | (sourlo>>30)); \ 48850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+7, sourlo>>20); \ 48950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+10, sourlo>>10); \ 49050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd83(bcd+13, sourlo);} 49150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 49250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==16 49350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFF(df, bcd) { \ 49450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWORD(df, 0); \ 49550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourlo=DFWORD(df, 1); \ 49650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho *(bcd)=(uByte)DECCOMBMSD[sourhi>>26]; \ 49750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+1, sourhi>>8); \ 49850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+4, (sourhi<<2) | (sourlo>>30)); \ 49950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+7, sourlo>>20); \ 50050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+10, sourlo>>10); \ 50150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd83(bcd+13, sourlo);} 50250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETWCOEFF(df, bcd) { \ 50350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWWORD(df, 0); \ 50450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourmh=DFWWORD(df, 1); \ 50550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourml=DFWWORD(df, 2); \ 50650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourlo=DFWWORD(df, 3); \ 50750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho *(bcd)=(uByte)DECCOMBMSD[sourhi>>26]; \ 50850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+1, sourhi>>4); \ 50950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+4, ((sourhi)<<6) | (sourmh>>26)); \ 51050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+7, sourmh>>16); \ 51150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+10, sourmh>>6); \ 51250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+13, ((sourmh)<<4) | (sourml>>28)); \ 51350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+16, sourml>>18); \ 51450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+19, sourml>>8); \ 51550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+22, ((sourml)<<2) | (sourlo>>30)); \ 51650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+25, sourlo>>20); \ 51750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+28, sourlo>>10); \ 51850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd83(bcd+31, sourlo);} 51950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 52050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==34 52150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFF(df, bcd) { \ 52250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWORD(df, 0); \ 52350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourmh=DFWORD(df, 1); \ 52450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourml=DFWORD(df, 2); \ 52550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourlo=DFWORD(df, 3); \ 52650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho *(bcd)=(uByte)DECCOMBMSD[sourhi>>26]; \ 52750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+1, sourhi>>4); \ 52850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+4, ((sourhi)<<6) | (sourmh>>26)); \ 52950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+7, sourmh>>16); \ 53050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+10, sourmh>>6); \ 53150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+13, ((sourmh)<<4) | (sourml>>28)); \ 53250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+16, sourml>>18); \ 53350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+19, sourml>>8); \ 53450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+22, ((sourml)<<2) | (sourlo>>30)); \ 53550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+25, sourlo>>20); \ 53650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd8(bcd+28, sourlo>>10); \ 53750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho dpd2bcd83(bcd+31, sourlo);} 53850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 53950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETWCOEFF(df, bcd) {??} /* [should never be used] */ 54050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 54150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 54250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macros to decode the coefficient in a finite decFloat *df into */ 54350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* a base-billion uInt array, with the least-significant */ 54450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* 0-999999999 'digit' at offset 0. */ 54550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 54650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Decode the declets. After extracting each one, it is decoded */ 54750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* to binary using a table lookup. Three tables are used; one */ 54850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* the usual DPD to binary, the other two pre-multiplied by 1000 */ 54950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* and 1000000 to avoid multiplication during decode. These */ 55050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* tables can also be used for multiplying up the MSD as the DPD */ 55150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* code for 0 through 9 is the identity. */ 55250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DPD2BIN0 DPD2BIN /* for prettier code */ 55350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 55450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECPMAX==7 55550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFFBILL(df, buf) { \ 55650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWORD(df, 0); \ 55750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]=DPD2BIN0[sourhi&0x3ff] \ 55850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINK[(sourhi>>10)&0x3ff] \ 55950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINM[DECCOMBMSD[sourhi>>26]];} 56050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 56150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==16 56250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFFBILL(df, buf) { \ 56350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi, sourlo; \ 56450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourlo=DFWORD(df, 1); \ 56550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]=DPD2BIN0[sourlo&0x3ff] \ 56650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINK[(sourlo>>10)&0x3ff] \ 56750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINM[(sourlo>>20)&0x3ff]; \ 56850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourhi=DFWORD(df, 0); \ 56950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]=DPD2BIN0[((sourhi<<2) | (sourlo>>30))&0x3ff] \ 57050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINK[(sourhi>>8)&0x3ff] \ 57150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINM[DECCOMBMSD[sourhi>>26]];} 57250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 57350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==34 57450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFFBILL(df, buf) { \ 57550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi, sourmh, sourml, sourlo; \ 57650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourlo=DFWORD(df, 3); \ 57750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]=DPD2BIN0[sourlo&0x3ff] \ 57850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINK[(sourlo>>10)&0x3ff] \ 57950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINM[(sourlo>>20)&0x3ff]; \ 58050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourml=DFWORD(df, 2); \ 58150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]=DPD2BIN0[((sourml<<2) | (sourlo>>30))&0x3ff] \ 58250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINK[(sourml>>8)&0x3ff] \ 58350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINM[(sourml>>18)&0x3ff]; \ 58450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourmh=DFWORD(df, 1); \ 58550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[2]=DPD2BIN0[((sourmh<<4) | (sourml>>28))&0x3ff] \ 58650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINK[(sourmh>>6)&0x3ff] \ 58750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINM[(sourmh>>16)&0x3ff]; \ 58850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourhi=DFWORD(df, 0); \ 58950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[3]=DPD2BIN0[((sourhi<<6) | (sourmh>>26))&0x3ff] \ 59050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINK[(sourhi>>4)&0x3ff] \ 59150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho +DPD2BINM[DECCOMBMSD[sourhi>>26]];} 59250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 59350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 59450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 59550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macros to decode the coefficient in a finite decFloat *df into */ 59650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* a base-thousand uInt array (of size DECLETS+1, to allow for */ 59750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* the MSD), with the least-significant 0-999 'digit' at offset 0.*/ 59850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 59950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Decode the declets. After extracting each one, it is decoded */ 60050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* to binary using a table lookup. */ 60150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECPMAX==7 60250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFFTHOU(df, buf) { \ 60350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWORD(df, 0); \ 60450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]=DPD2BIN[sourhi&0x3ff]; \ 60550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]=DPD2BIN[(sourhi>>10)&0x3ff]; \ 60650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[2]=DECCOMBMSD[sourhi>>26];} 60750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 60850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==16 60950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFFTHOU(df, buf) { \ 61050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi, sourlo; \ 61150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourlo=DFWORD(df, 1); \ 61250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]=DPD2BIN[sourlo&0x3ff]; \ 61350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]=DPD2BIN[(sourlo>>10)&0x3ff]; \ 61450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[2]=DPD2BIN[(sourlo>>20)&0x3ff]; \ 61550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourhi=DFWORD(df, 0); \ 61650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[3]=DPD2BIN[((sourhi<<2) | (sourlo>>30))&0x3ff]; \ 61750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[4]=DPD2BIN[(sourhi>>8)&0x3ff]; \ 61850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[5]=DECCOMBMSD[sourhi>>26];} 61950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 62050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==34 62150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define GETCOEFFTHOU(df, buf) { \ 62250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi, sourmh, sourml, sourlo; \ 62350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourlo=DFWORD(df, 3); \ 62450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]=DPD2BIN[sourlo&0x3ff]; \ 62550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]=DPD2BIN[(sourlo>>10)&0x3ff]; \ 62650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[2]=DPD2BIN[(sourlo>>20)&0x3ff]; \ 62750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourml=DFWORD(df, 2); \ 62850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[3]=DPD2BIN[((sourml<<2) | (sourlo>>30))&0x3ff]; \ 62950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[4]=DPD2BIN[(sourml>>8)&0x3ff]; \ 63050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[5]=DPD2BIN[(sourml>>18)&0x3ff]; \ 63150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourmh=DFWORD(df, 1); \ 63250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[6]=DPD2BIN[((sourmh<<4) | (sourml>>28))&0x3ff]; \ 63350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[7]=DPD2BIN[(sourmh>>6)&0x3ff]; \ 63450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[8]=DPD2BIN[(sourmh>>16)&0x3ff]; \ 63550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourhi=DFWORD(df, 0); \ 63650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[9]=DPD2BIN[((sourhi<<6) | (sourmh>>26))&0x3ff]; \ 63750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[10]=DPD2BIN[(sourhi>>4)&0x3ff]; \ 63850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[11]=DECCOMBMSD[sourhi>>26];} 63950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 64050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 64150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 64250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Macros to decode the coefficient in a finite decFloat *df and */ 64350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* add to a base-thousand uInt array (as for GETCOEFFTHOU). */ 64450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* After the addition then most significant 'digit' in the array */ 64550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* might have a value larger then 10 (with a maximum of 19). */ 64650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECPMAX==7 64750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ADDCOEFFTHOU(df, buf) { \ 64850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi=DFWORD(df, 0); \ 64950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]+=DPD2BIN[sourhi&0x3ff]; \ 65050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[0]>999) {buf[0]-=1000; buf[1]++;} \ 65150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]+=DPD2BIN[(sourhi>>10)&0x3ff]; \ 65250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[1]>999) {buf[1]-=1000; buf[2]++;} \ 65350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[2]+=DECCOMBMSD[sourhi>>26];} 65450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 65550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==16 65650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ADDCOEFFTHOU(df, buf) { \ 65750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi, sourlo; \ 65850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourlo=DFWORD(df, 1); \ 65950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]+=DPD2BIN[sourlo&0x3ff]; \ 66050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[0]>999) {buf[0]-=1000; buf[1]++;} \ 66150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]+=DPD2BIN[(sourlo>>10)&0x3ff]; \ 66250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[1]>999) {buf[1]-=1000; buf[2]++;} \ 66350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[2]+=DPD2BIN[(sourlo>>20)&0x3ff]; \ 66450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[2]>999) {buf[2]-=1000; buf[3]++;} \ 66550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourhi=DFWORD(df, 0); \ 66650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[3]+=DPD2BIN[((sourhi<<2) | (sourlo>>30))&0x3ff]; \ 66750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[3]>999) {buf[3]-=1000; buf[4]++;} \ 66850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[4]+=DPD2BIN[(sourhi>>8)&0x3ff]; \ 66950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[4]>999) {buf[4]-=1000; buf[5]++;} \ 67050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[5]+=DECCOMBMSD[sourhi>>26];} 67150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 67250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==34 67350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define ADDCOEFFTHOU(df, buf) { \ 67450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uInt sourhi, sourmh, sourml, sourlo; \ 67550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourlo=DFWORD(df, 3); \ 67650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[0]+=DPD2BIN[sourlo&0x3ff]; \ 67750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[0]>999) {buf[0]-=1000; buf[1]++;} \ 67850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[1]+=DPD2BIN[(sourlo>>10)&0x3ff]; \ 67950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[1]>999) {buf[1]-=1000; buf[2]++;} \ 68050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[2]+=DPD2BIN[(sourlo>>20)&0x3ff]; \ 68150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[2]>999) {buf[2]-=1000; buf[3]++;} \ 68250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourml=DFWORD(df, 2); \ 68350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[3]+=DPD2BIN[((sourml<<2) | (sourlo>>30))&0x3ff]; \ 68450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[3]>999) {buf[3]-=1000; buf[4]++;} \ 68550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[4]+=DPD2BIN[(sourml>>8)&0x3ff]; \ 68650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[4]>999) {buf[4]-=1000; buf[5]++;} \ 68750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[5]+=DPD2BIN[(sourml>>18)&0x3ff]; \ 68850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[5]>999) {buf[5]-=1000; buf[6]++;} \ 68950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourmh=DFWORD(df, 1); \ 69050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[6]+=DPD2BIN[((sourmh<<4) | (sourml>>28))&0x3ff]; \ 69150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[6]>999) {buf[6]-=1000; buf[7]++;} \ 69250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[7]+=DPD2BIN[(sourmh>>6)&0x3ff]; \ 69350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[7]>999) {buf[7]-=1000; buf[8]++;} \ 69450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[8]+=DPD2BIN[(sourmh>>16)&0x3ff]; \ 69550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[8]>999) {buf[8]-=1000; buf[9]++;} \ 69650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho sourhi=DFWORD(df, 0); \ 69750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[9]+=DPD2BIN[((sourhi<<6) | (sourmh>>26))&0x3ff]; \ 69850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[9]>999) {buf[9]-=1000; buf[10]++;} \ 69950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[10]+=DPD2BIN[(sourhi>>4)&0x3ff]; \ 70050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho if (buf[10]>999) {buf[10]-=1000; buf[11]++;} \ 70150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho (buf)[11]+=DECCOMBMSD[sourhi>>26];} 70250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 70350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 70450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 70550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* Set a decFloat to the maximum positive finite number (Nmax) */ 70650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #if DECPMAX==7 70750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFSETNMAX(df) \ 70850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho {DFWORD(df, 0)=0x77f3fcff;} 70950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==16 71050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFSETNMAX(df) \ 71150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho {DFWORD(df, 0)=0x77fcff3f; \ 71250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho DFWORD(df, 1)=0xcff3fcff;} 71350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #elif DECPMAX==34 71450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #define DFSETNMAX(df) \ 71550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho {DFWORD(df, 0)=0x77ffcff3; \ 71650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho DFWORD(df, 1)=0xfcff3fcf; \ 71750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho DFWORD(df, 2)=0xf3fcff3f; \ 71850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho DFWORD(df, 3)=0xcff3fcff;} 71950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 72050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 72150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho /* [end of format-dependent macros and constants] */ 72250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #endif 72350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 72450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho#else 72550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho #error decNumberLocal included more than once 72650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho#endif 727