* src-release (GDB_SUPPORT_DIRS): Add libdecnumber.

	* libdecnumber: New directory, imported from GCC.

1 files changed, 665 insertions, 0 deletions

diff --git a/libdecnumber/decNumberLocal.h b/libdecnumber/decNumberLocal.h
new file mode 100644
index 0000000..891a084
--- /dev/null
+++ b/libdecnumber/decNumberLocal.h
@@ -0,0 +1,665 @@
+/* Local definitions for the decNumber C Library.
+   Copyright (C) 2007 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 2, or (at your option) any later
+   version.
+
+   In addition to the permissions in the GNU General Public License,
+   the Free Software Foundation gives you unlimited permission to link
+   the compiled version of this file into combinations with other
+   programs, and to distribute those combinations without any
+   restriction coming from the use of this file.  (The General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into a combine executable.)
+
+   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.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING.  If not, write to the Free
+   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+/* ------------------------------------------------------------------ */
+/* decNumber package local type, tuning, and macro definitions	      */
+/* ------------------------------------------------------------------ */
+/* This header file is included by all modules in the decNumber	      */
+/* library, and contains local type definitions, tuning parameters,   */
+/* etc.	 It should not need to be used by application programs.	      */
+/* decNumber.h or one of decDouble (etc.) must be included first.     */
+/* ------------------------------------------------------------------ */
+
+#if !defined(DECNUMBERLOC)
+  #define DECNUMBERLOC
+  #define DECVERSION	"decNumber 3.53" /* Package Version [16 max.] */
+  #define DECNLAUTHOR	"Mike Cowlishaw"	      /* Who to blame */
+
+  #include <stdlib.h>	      /* for abs			      */
+  #include <string.h>	      /* for memset, strcpy		      */
+  #include "config.h"	      /* for WORDS_BIGENDIAN                  */
+
+  /* Conditional code flag -- set this to match hardware platform     */
+  /* 1=little-endian, 0=big-endian	                              */
+  #if WORDS_BIGENDIAN
+  #define DECLITEND 0
+  #else
+  #define DECLITEND 1
+  #endif
+
+  /* Conditional code flag -- set this to 1 for best performance      */
+  #define DECUSE64  1	      /* 1=use int64s, 0=int32 & smaller only */
+
+  /* Conditional check flags -- set these to 0 for best performance   */
+  #define DECCHECK  0	      /* 1 to enable robust checking	      */
+  #define DECALLOC  0	      /* 1 to enable memory accounting	      */
+  #define DECTRACE  0	      /* 1 to trace certain internals, etc.   */
+
+  /* Tuning parameter for decNumber (arbitrary precision) module      */
+  #define DECBUFFER 36	      /* Size basis for local buffers.	This  */
+			      /* should be a common maximum precision */
+			      /* rounded up to a multiple of 4; must  */
+			      /* be zero or positive.		      */
+
+  /* ---------------------------------------------------------------- */
+  /* Definitions for all modules (general-purpose)		      */
+  /* ---------------------------------------------------------------- */
+
+  /* Local names for common types -- for safety, decNumber modules do */
+  /* not use int or long directly.				      */
+  #define Flag	 uint8_t
+  #define Byte	 int8_t
+  #define uByte	 uint8_t
+  #define Short	 int16_t
+  #define uShort uint16_t
+  #define Int	 int32_t
+  #define uInt	 uint32_t
+  #define Unit	 decNumberUnit
+  #if DECUSE64
+  #define Long	 int64_t
+  #define uLong	 uint64_t
+  #endif
+
+  /* Development-use definitions				      */
+  typedef long int LI;	      /* for printf arguments only	      */
+  #define DECNOINT  0	      /* 1 to check no internal use of 'int'  */
+  #if DECNOINT
+    /* if these interfere with your C includes, do not set DECNOINT   */
+    #define  int ?	      /* enable to ensure that plain C 'int'  */
+    #define  long ??	      /* .. or 'long' types are not used      */
+  #endif
+
+  /* Shared lookup tables					      */
+  extern const uByte  DECSTICKYTAB[10]; /* re-round digits if sticky  */
+  extern const uInt   DECPOWERS[10];	/* powers of ten table	      */
+  /* The following are included from decDPD.h			      */
+  extern const uShort DPD2BIN[1024];	/* DPD -> 0-999		      */
+  extern const uShort BIN2DPD[1000];	/* 0-999 -> DPD		      */
+  extern const uInt   DPD2BINK[1024];	/* DPD -> 0-999000	      */
+  extern const uInt   DPD2BINM[1024];	/* DPD -> 0-999000000	      */
+  extern const uByte  DPD2BCD8[4096];	/* DPD -> ddd + len	      */
+  extern const uByte  BIN2BCD8[4000];	/* 0-999 -> ddd + len	      */
+  extern const uShort BCD2DPD[2458];	/* 0-0x999 -> DPD (0x999=2457)*/
+
+  /* LONGMUL32HI -- set w=(u*v)>>32, where w, u, and v are uInts      */
+  /* (that is, sets w to be the high-order word of the 64-bit result; */
+  /* the low-order word is simply u*v.)				      */
+  /* This version is derived from Knuth via Hacker's Delight;	      */
+  /* it seems to optimize better than some others tried		      */
+  #define LONGMUL32HI(w, u, v) {	     \
+    uInt u0, u1, v0, v1, w0, w1, w2, t;	     \
+    u0=u & 0xffff; u1=u>>16;		     \
+    v0=v & 0xffff; v1=v>>16;		     \
+    w0=u0*v0;				     \
+    t=u1*v0 + (w0>>16);			     \
+    w1=t & 0xffff; w2=t>>16;		     \
+    w1=u0*v1 + w1;			     \
+    (w)=u1*v1 + w2 + (w1>>16);}
+
+  /* ROUNDUP -- round an integer up to a multiple of n		      */
+  #define ROUNDUP(i, n) ((((i)+(n)-1)/n)*n)
+
+  /* ROUNDDOWN -- round an integer down to a multiple of n	      */
+  #define ROUNDDOWN(i, n) (((i)/n)*n)
+  #define ROUNDDOWN4(i)	  ((i)&~3)	/* special for n=4	      */
+
+  /* References to multi-byte sequences under different sizes	      */
+  /* Refer to a uInt from four bytes starting at a char* or uByte*,   */
+  /* etc.							      */
+  #define UINTAT(b)   (*((uInt	 *)(b)))
+  #define USHORTAT(b) (*((uShort *)(b)))
+  #define UBYTEAT(b)  (*((uByte	 *)(b)))
+
+  /* X10 and X100 -- multiply integer i by 10 or 100		      */
+  /* [shifts are usually faster than multiply; could be conditional]  */
+  #define X10(i)  (((i)<<1)+((i)<<3))
+  #define X100(i) (((i)<<2)+((i)<<5)+((i)<<6))
+
+  /* MAXI and MINI -- general max & min (not in ANSI) for integers    */
+  #define MAXI(x,y) ((x)<(y)?(y):(x))
+  #define MINI(x,y) ((x)>(y)?(y):(x))
+
+  /* Useful constants						      */
+  #define BILLION      1000000000	     /* 10**9		      */
+  /* CHARMASK: 0x30303030 for ASCII/UTF8; 0xF0F0F0F0 for EBCDIC	      */
+  #define CHARMASK ((((((((uInt)'0')<<8)+'0')<<8)+'0')<<8)+'0')
+
+
+  /* ---------------------------------------------------------------- */
+  /* Definitions for arbitary-precision modules (only valid after     */
+  /* decNumber.h has been included)				      */
+  /* ---------------------------------------------------------------- */
+
+  /* Limits and constants					      */
+  #define DECNUMMAXP 999999999	/* maximum precision code can handle  */
+  #define DECNUMMAXE 999999999	/* maximum adjusted exponent ditto    */
+  #define DECNUMMINE -999999999 /* minimum adjusted exponent ditto    */
+  #if (DECNUMMAXP != DEC_MAX_DIGITS)
+    #error Maximum digits mismatch
+  #endif
+  #if (DECNUMMAXE != DEC_MAX_EMAX)
+    #error Maximum exponent mismatch
+  #endif
+  #if (DECNUMMINE != DEC_MIN_EMIN)
+    #error Minimum exponent mismatch
+  #endif
+
+  /* Set DECDPUNMAX -- the maximum integer that fits in DECDPUN	      */
+  /* digits, and D2UTABLE -- the initializer for the D2U table	      */
+  #if	DECDPUN==1
+    #define DECDPUNMAX 9
+    #define D2UTABLE {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,  \
+		      18,19,20,21,22,23,24,25,26,27,28,29,30,31,32, \
+		      33,34,35,36,37,38,39,40,41,42,43,44,45,46,47, \
+		      48,49}
+  #elif DECDPUN==2
+    #define DECDPUNMAX 99
+    #define D2UTABLE {0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,  \
+		      11,11,12,12,13,13,14,14,15,15,16,16,17,17,18, \
+		      18,19,19,20,20,21,21,22,22,23,23,24,24,25}
+  #elif DECDPUN==3
+    #define DECDPUNMAX 999
+    #define D2UTABLE {0,1,1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,7,7,7,  \
+		      8,8,8,9,9,9,10,10,10,11,11,11,12,12,12,13,13, \
+		      13,14,14,14,15,15,15,16,16,16,17}
+  #elif DECDPUN==4
+    #define DECDPUNMAX 9999
+    #define D2UTABLE {0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,6,  \
+		      6,6,6,7,7,7,7,8,8,8,8,9,9,9,9,10,10,10,10,11, \
+		      11,11,11,12,12,12,12,13}
+  #elif DECDPUN==5
+    #define DECDPUNMAX 99999
+    #define D2UTABLE {0,1,1,1,1,1,2,2,2,2,2,3,3,3,3,3,4,4,4,4,4,5,  \
+		      5,5,5,5,6,6,6,6,6,7,7,7,7,7,8,8,8,8,8,9,9,9,  \
+		      9,9,10,10,10,10}
+  #elif DECDPUN==6
+    #define DECDPUNMAX 999999
+    #define D2UTABLE {0,1,1,1,1,1,1,2,2,2,2,2,2,3,3,3,3,3,3,4,4,4,  \
+		      4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,7,7,7,7,7,7,8,  \
+		      8,8,8,8,8,9}
+  #elif DECDPUN==7
+    #define DECDPUNMAX 9999999
+    #define D2UTABLE {0,1,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,3,  \
+		      4,4,4,4,4,4,4,5,5,5,5,5,5,5,6,6,6,6,6,6,6,7,  \
+		      7,7,7,7,7,7}
+  #elif DECDPUN==8
+    #define DECDPUNMAX 99999999
+    #define D2UTABLE {0,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,3,3,3,3,3,  \
+		      3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,6,6,6,  \
+		      6,6,6,6,6,7}
+  #elif DECDPUN==9
+    #define DECDPUNMAX 999999999
+    #define D2UTABLE {0,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,3,3,3,  \
+		      3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,  \
+		      5,5,6,6,6,6}
+  #elif defined(DECDPUN)
+    #error DECDPUN must be in the range 1-9
+  #endif
+
+  /* ----- Shared data (in decNumber.c) ----- */
+  /* Public lookup table used by the D2U macro (see below)	      */
+  #define DECMAXD2U 49
+  extern const uByte d2utable[DECMAXD2U+1];
+
+  /* ----- Macros ----- */
+  /* ISZERO -- return true if decNumber dn is a zero		      */
+  /* [performance-critical in some situations]			      */
+  #define ISZERO(dn) decNumberIsZero(dn)     /* now just a local name */
+
+  /* D2U -- return the number of Units needed to hold d digits	      */
+  /* (runtime version, with table lookaside for small d)	      */
+  #if DECDPUN==8
+    #define D2U(d) ((unsigned)((d)<=DECMAXD2U?d2utable[d]:((d)+7)>>3))
+  #elif DECDPUN==4
+    #define D2U(d) ((unsigned)((d)<=DECMAXD2U?d2utable[d]:((d)+3)>>2))
+  #else
+    #define D2U(d) ((d)<=DECMAXD2U?d2utable[d]:((d)+DECDPUN-1)/DECDPUN)
+  #endif
+  /* SD2U -- static D2U macro (for compile-time calculation)	      */
+  #define SD2U(d) (((d)+DECDPUN-1)/DECDPUN)
+
+  /* MSUDIGITS -- returns digits in msu, from digits, calculated      */
+  /* using D2U							      */
+  #define MSUDIGITS(d) ((d)-(D2U(d)-1)*DECDPUN)
+
+  /* D2N -- return the number of decNumber structs that would be      */
+  /* needed to contain that number of digits (and the initial	      */
+  /* decNumber struct) safely.	Note that one Unit is included in the */
+  /* initial structure.	 Used for allocating space that is aligned on */
+  /* a decNumber struct boundary. */
+  #define D2N(d) \
+    ((((SD2U(d)-1)*sizeof(Unit))+sizeof(decNumber)*2-1)/sizeof(decNumber))
+
+  /* TODIGIT -- macro to remove the leading digit from the unsigned   */
+  /* integer u at column cut (counting from the right, LSD=0) and     */
+  /* place it as an ASCII character into the character pointed to by  */
+  /* c.	 Note that cut must be <= 9, and the maximum value for u is   */
+  /* 2,000,000,000 (as is needed for negative exponents of	      */
+  /* subnormals).  The unsigned integer pow is used as a temporary    */
+  /* variable. */
+  #define TODIGIT(u, cut, c, pow) {	  \
+    *(c)='0';				  \
+    pow=DECPOWERS[cut]*2;		  \
+    if ((u)>pow) {			  \
+      pow*=4;				  \
+      if ((u)>=pow) {(u)-=pow; *(c)+=8;}  \
+      pow/=2;				  \
+      if ((u)>=pow) {(u)-=pow; *(c)+=4;}  \
+      pow/=2;				  \
+      }					  \
+    if ((u)>=pow) {(u)-=pow; *(c)+=2;}	  \
+    pow/=2;				  \
+    if ((u)>=pow) {(u)-=pow; *(c)+=1;}	  \
+    }
+
+  /* ---------------------------------------------------------------- */
+  /* Definitions for fixed-precision modules (only valid after	      */
+  /* decSingle.h, decDouble.h, or decQuad.h has been included)	      */
+  /* ---------------------------------------------------------------- */
+
+  /* bcdnum -- a structure describing a format-independent finite     */
+  /* number, whose coefficient is a string of bcd8 uBytes	      */
+  typedef struct {
+    uByte   *msd;	      /* -> most significant digit	      */
+    uByte   *lsd;	      /* -> least ditto			      */
+    uInt     sign;	      /* 0=positive, DECFLOAT_Sign=negative   */
+    Int	     exponent;	      /* Unadjusted signed exponent (q), or   */
+			      /* DECFLOAT_NaN etc. for a special      */
+    } bcdnum;
+
+  /* Test if exponent or bcdnum exponent must be a special, etc.      */
+  #define EXPISSPECIAL(exp) ((exp)>=DECFLOAT_MinSp)
+  #define EXPISINF(exp) (exp==DECFLOAT_Inf)
+  #define EXPISNAN(exp) (exp==DECFLOAT_qNaN || exp==DECFLOAT_sNaN)
+  #define NUMISSPECIAL(num) (EXPISSPECIAL((num)->exponent))
+
+  /* Refer to a 32-bit word or byte in a decFloat (df) by big-endian  */
+  /* (array) notation (the 0 word or byte contains the sign bit),     */
+  /* automatically adjusting for endianness; similarly address a word */
+  /* in the next-wider format (decFloatWider, or dfw)		      */
+  #define DECWORDS  (DECBYTES/4)
+  #define DECWWORDS (DECWBYTES/4)
+  #if DECLITEND
+    #define DFWORD(df, off) UINTAT((df)->bytes+(DECWORDS-1-(off))*4)
+    #define DFBYTE(df, off) UBYTEAT((df)->bytes+(DECBYTES-1-(off)))
+    #define DFWWORD(dfw, off) UINTAT((dfw)->bytes+(DECWWORDS-1-(off))*4)
+  #else
+    #define DFWORD(df, off) UINTAT((df)->bytes+(off)*4)
+    #define DFBYTE(df, off) UBYTEAT((df)->bytes+(off))
+    #define DFWWORD(dfw, off) UINTAT((dfw)->bytes+(off)*4)
+  #endif
+
+  /* Tests for sign or specials, directly on DECFLOATs		      */
+  #define DFISSIGNED(df)   (DFWORD(df, 0)&0x80000000)
+  #define DFISSPECIAL(df) ((DFWORD(df, 0)&0x78000000)==0x78000000)
+  #define DFISINF(df)	  ((DFWORD(df, 0)&0x7c000000)==0x78000000)
+  #define DFISNAN(df)	  ((DFWORD(df, 0)&0x7c000000)==0x7c000000)
+  #define DFISQNAN(df)	  ((DFWORD(df, 0)&0x7e000000)==0x7c000000)
+  #define DFISSNAN(df)	  ((DFWORD(df, 0)&0x7e000000)==0x7e000000)
+
+  /* Shared lookup tables					      */
+  extern const uInt   DECCOMBMSD[64];	/* Combination field -> MSD   */
+  extern const uInt   DECCOMBFROM[48];	/* exp+msd -> Combination     */
+
+  /* Private generic (utility) routine				      */
+  #if DECCHECK || DECTRACE
+    extern void decShowNum(const bcdnum *, const char *);
+  #endif
+
+  /* Format-dependent macros and constants			      */
+  #if defined(DECPMAX)
+
+    /* Useful constants						      */
+    #define DECPMAX9  (ROUNDUP(DECPMAX, 9)/9)  /* 'Pmax' in 10**9s    */
+    /* Top words for a zero					      */
+    #define SINGLEZERO	 0x22500000
+    #define DOUBLEZERO	 0x22380000
+    #define QUADZERO	 0x22080000
+    /* [ZEROWORD is defined to be one of these in the DFISZERO macro] */
+
+    /* Format-dependent common tests:				      */
+    /*	 DFISZERO   -- test for (any) zero			      */
+    /*	 DFISCCZERO -- test for coefficient continuation being zero   */
+    /*	 DFISCC01   -- test for coefficient contains only 0s and 1s   */
+    /*	 DFISINT    -- test for finite and exponent q=0		      */
+    /*	 DFISUINT01 -- test for sign=0, finite, exponent q=0, and     */
+    /*		       MSD=0 or 1				      */
+    /*	 ZEROWORD is also defined here.				      */
+    /* In DFISZERO the first test checks the least-significant word   */
+    /* (most likely to be non-zero); the penultimate tests MSD and    */
+    /* DPDs in the signword, and the final test excludes specials and */
+    /* MSD>7.  DFISINT similarly has to allow for the two forms of    */
+    /* MSD codes.  DFISUINT01 only has to allow for one form of MSD   */
+    /* code.							      */
+    #if DECPMAX==7
+      #define ZEROWORD SINGLEZERO
+      /* [test macros not needed except for Zero]		      */
+      #define DFISZERO(df)  ((DFWORD(df, 0)&0x1c0fffff)==0	   \
+			  && (DFWORD(df, 0)&0x60000000)!=0x60000000)
+    #elif DECPMAX==16
+      #define ZEROWORD DOUBLEZERO
+      #define DFISZERO(df)  ((DFWORD(df, 1)==0			   \
+			  && (DFWORD(df, 0)&0x1c03ffff)==0	   \
+			  && (DFWORD(df, 0)&0x60000000)!=0x60000000))
+      #define DFISINT(df) ((DFWORD(df, 0)&0x63fc0000)==0x22380000  \
+			 ||(DFWORD(df, 0)&0x7bfc0000)==0x6a380000)
+      #define DFISUINT01(df) ((DFWORD(df, 0)&0xfbfc0000)==0x22380000)
+      #define DFISCCZERO(df) (DFWORD(df, 1)==0			   \
+			  && (DFWORD(df, 0)&0x0003ffff)==0)
+      #define DFISCC01(df)  ((DFWORD(df, 0)&~0xfffc9124)==0	   \
+			  && (DFWORD(df, 1)&~0x49124491)==0)
+    #elif DECPMAX==34
+      #define ZEROWORD QUADZERO
+      #define DFISZERO(df)  ((DFWORD(df, 3)==0			   \
+			  &&  DFWORD(df, 2)==0			   \
+			  &&  DFWORD(df, 1)==0			   \
+			  && (DFWORD(df, 0)&0x1c003fff)==0	   \
+			  && (DFWORD(df, 0)&0x60000000)!=0x60000000))
+      #define DFISINT(df) ((DFWORD(df, 0)&0x63ffc000)==0x22080000  \
+			 ||(DFWORD(df, 0)&0x7bffc000)==0x6a080000)
+      #define DFISUINT01(df) ((DFWORD(df, 0)&0xfbffc000)==0x22080000)
+      #define DFISCCZERO(df) (DFWORD(df, 3)==0			   \
+			  &&  DFWORD(df, 2)==0			   \
+			  &&  DFWORD(df, 1)==0			   \
+			  && (DFWORD(df, 0)&0x00003fff)==0)
+
+      #define DFISCC01(df)   ((DFWORD(df, 0)&~0xffffc912)==0	   \
+			  &&  (DFWORD(df, 1)&~0x44912449)==0	   \
+			  &&  (DFWORD(df, 2)&~0x12449124)==0	   \
+			  &&  (DFWORD(df, 3)&~0x49124491)==0)
+    #endif
+
+    /* Macros to test if a certain 10 bits of a uInt or pair of uInts */
+    /* are a canonical declet [higher or lower bits are ignored].     */
+    /* declet is at offset 0 (from the right) in a uInt:	      */
+    #define CANONDPD(dpd) (((dpd)&0x300)==0 || ((dpd)&0x6e)!=0x6e)
+    /* declet is at offset k (a multiple of 2) in a uInt:	      */
+    #define CANONDPDOFF(dpd, k) (((dpd)&(0x300<<(k)))==0	    \
+      || ((dpd)&(((uInt)0x6e)<<(k)))!=(((uInt)0x6e)<<(k)))
+    /* declet is at offset k (a multiple of 2) in a pair of uInts:    */
+    /* [the top 2 bits will always be in the more-significant uInt]   */
+    #define CANONDPDTWO(hi, lo, k) (((hi)&(0x300>>(32-(k))))==0	    \
+      || ((hi)&(0x6e>>(32-(k))))!=(0x6e>>(32-(k)))		    \
+      || ((lo)&(((uInt)0x6e)<<(k)))!=(((uInt)0x6e)<<(k)))
+
+    /* Macro to test whether a full-length (length DECPMAX) BCD8      */
+    /* coefficient is zero					      */
+    /* test just the LSWord first, then the remainder		      */
+    #if DECPMAX==7
+      #define ISCOEFFZERO(u) (UINTAT((u)+DECPMAX-4)==0		    \
+	&& UINTAT((u)+DECPMAX-7)==0)
+    #elif DECPMAX==16
+      #define ISCOEFFZERO(u) (UINTAT((u)+DECPMAX-4)==0		    \
+	&& (UINTAT((u)+DECPMAX-8)+UINTAT((u)+DECPMAX-12)	    \
+	   +UINTAT((u)+DECPMAX-16))==0)
+    #elif DECPMAX==34
+      #define ISCOEFFZERO(u) (UINTAT((u)+DECPMAX-4)==0		    \
+	&& (UINTAT((u)+DECPMAX-8) +UINTAT((u)+DECPMAX-12)	    \
+	   +UINTAT((u)+DECPMAX-16)+UINTAT((u)+DECPMAX-20)	    \
+	   +UINTAT((u)+DECPMAX-24)+UINTAT((u)+DECPMAX-28)	    \
+	   +UINTAT((u)+DECPMAX-32)+USHORTAT((u)+DECPMAX-34))==0)
+    #endif
+
+    /* Macros and masks for the exponent continuation field and MSD   */
+    /* Get the exponent continuation from a decFloat *df as an Int    */
+    #define GETECON(df) ((Int)((DFWORD((df), 0)&0x03ffffff)>>(32-6-DECECONL)))
+    /* Ditto, from the next-wider format			      */
+    #define GETWECON(df) ((Int)((DFWWORD((df), 0)&0x03ffffff)>>(32-6-DECWECONL)))
+    /* Get the biased exponent similarly			      */
+    #define GETEXP(df)	((Int)(DECCOMBEXP[DFWORD((df), 0)>>26]+GETECON(df)))
+    /* Get the unbiased exponent similarly			      */
+    #define GETEXPUN(df) ((Int)GETEXP(df)-DECBIAS)
+    /* Get the MSD similarly (as uInt)				      */
+    #define GETMSD(df)	 (DECCOMBMSD[DFWORD((df), 0)>>26])
+
+    /* Compile-time computes of the exponent continuation field masks */
+    /* full exponent continuation field:			      */
+    #define ECONMASK ((0x03ffffff>>(32-6-DECECONL))<<(32-6-DECECONL))
+    /* same, not including its first digit (the qNaN/sNaN selector):  */
+    #define ECONNANMASK ((0x01ffffff>>(32-6-DECECONL))<<(32-6-DECECONL))
+
+    /* Macros to decode the coefficient in a finite decFloat *df into */
+    /* a BCD string (uByte *bcdin) of length DECPMAX uBytes	      */
+
+    /* In-line sequence to convert 10 bits at right end of uInt dpd   */
+    /* to three BCD8 digits starting at uByte u.  Note that an extra  */
+    /* byte is written to the right of the three digits because this  */
+    /* moves four at a time for speed; the alternative macro moves    */
+    /* exactly three bytes					      */
+    #define dpd2bcd8(u, dpd) {				 \
+      UINTAT(u)=UINTAT(&DPD2BCD8[((dpd)&0x3ff)*4]);}
+
+    #define dpd2bcd83(u, dpd) {				 \
+      *(u)=DPD2BCD8[((dpd)&0x3ff)*4];			 \
+      *(u+1)=DPD2BCD8[((dpd)&0x3ff)*4+1];		 \
+      *(u+2)=DPD2BCD8[((dpd)&0x3ff)*4+2];}
+
+    /* Decode the declets.  After extracting each one, it is decoded  */
+    /* to BCD8 using a table lookup (also used for variable-length    */
+    /* decode).	 Each DPD decode is 3 bytes BCD8 plus a one-byte      */
+    /* length which is not used, here).	 Fixed-length 4-byte moves    */
+    /* are fast, however, almost everywhere, and so are used except   */
+    /* for the final three bytes (to avoid overrun).  The code below  */
+    /* is 36 instructions for Doubles and about 70 for Quads, even    */
+    /* on IA32.							      */
+
+    /* Two macros are defined for each format:			      */
+    /*	 GETCOEFF extracts the coefficient of the current format      */
+    /*	 GETWCOEFF extracts the coefficient of the next-wider format. */
+    /* The latter is a copy of the next-wider GETCOEFF using DFWWORD. */
+
+    #if DECPMAX==7
+    #define GETCOEFF(df, bcd) {				 \
+      uInt sourhi=DFWORD(df, 0);			 \
+      *(bcd)=(uByte)DECCOMBMSD[sourhi>>26];		 \
+      dpd2bcd8(bcd+1, sourhi>>10);			 \
+      dpd2bcd83(bcd+4, sourhi);}
+    #define GETWCOEFF(df, bcd) {			 \
+      uInt sourhi=DFWWORD(df, 0);			 \
+      uInt sourlo=DFWWORD(df, 1);			 \
+      *(bcd)=(uByte)DECCOMBMSD[sourhi>>26];		 \
+      dpd2bcd8(bcd+1, sourhi>>8);			 \
+      dpd2bcd8(bcd+4, (sourhi<<2) | (sourlo>>30));	 \
+      dpd2bcd8(bcd+7, sourlo>>20);			 \
+      dpd2bcd8(bcd+10, sourlo>>10);			 \
+      dpd2bcd83(bcd+13, sourlo);}
+
+    #elif DECPMAX==16
+    #define GETCOEFF(df, bcd) {				 \
+      uInt sourhi=DFWORD(df, 0);			 \
+      uInt sourlo=DFWORD(df, 1);			 \
+      *(bcd)=(uByte)DECCOMBMSD[sourhi>>26];		 \
+      dpd2bcd8(bcd+1, sourhi>>8);			 \
+      dpd2bcd8(bcd+4, (sourhi<<2) | (sourlo>>30));	 \
+      dpd2bcd8(bcd+7, sourlo>>20);			 \
+      dpd2bcd8(bcd+10, sourlo>>10);			 \
+      dpd2bcd83(bcd+13, sourlo);}
+    #define GETWCOEFF(df, bcd) {			 \
+      uInt sourhi=DFWWORD(df, 0);			 \
+      uInt sourmh=DFWWORD(df, 1);			 \
+      uInt sourml=DFWWORD(df, 2);			 \
+      uInt sourlo=DFWWORD(df, 3);			 \
+      *(bcd)=(uByte)DECCOMBMSD[sourhi>>26];		 \
+      dpd2bcd8(bcd+1, sourhi>>4);			 \
+      dpd2bcd8(bcd+4, ((sourhi)<<6) | (sourmh>>26));	 \
+      dpd2bcd8(bcd+7, sourmh>>16);			 \
+      dpd2bcd8(bcd+10, sourmh>>6);			 \
+      dpd2bcd8(bcd+13, ((sourmh)<<4) | (sourml>>28));	 \
+      dpd2bcd8(bcd+16, sourml>>18);			 \
+      dpd2bcd8(bcd+19, sourml>>8);			 \
+      dpd2bcd8(bcd+22, ((sourml)<<2) | (sourlo>>30));	 \
+      dpd2bcd8(bcd+25, sourlo>>20);			 \
+      dpd2bcd8(bcd+28, sourlo>>10);			 \
+      dpd2bcd83(bcd+31, sourlo);}
+
+    #elif DECPMAX==34
+    #define GETCOEFF(df, bcd) {				 \
+      uInt sourhi=DFWORD(df, 0);			 \
+      uInt sourmh=DFWORD(df, 1);			 \
+      uInt sourml=DFWORD(df, 2);			 \
+      uInt sourlo=DFWORD(df, 3);			 \
+      *(bcd)=(uByte)DECCOMBMSD[sourhi>>26];		 \
+      dpd2bcd8(bcd+1, sourhi>>4);			 \
+      dpd2bcd8(bcd+4, ((sourhi)<<6) | (sourmh>>26));	 \
+      dpd2bcd8(bcd+7, sourmh>>16);			 \
+      dpd2bcd8(bcd+10, sourmh>>6);			 \
+      dpd2bcd8(bcd+13, ((sourmh)<<4) | (sourml>>28));	 \
+      dpd2bcd8(bcd+16, sourml>>18);			 \
+      dpd2bcd8(bcd+19, sourml>>8);			 \
+      dpd2bcd8(bcd+22, ((sourml)<<2) | (sourlo>>30));	 \
+      dpd2bcd8(bcd+25, sourlo>>20);			 \
+      dpd2bcd8(bcd+28, sourlo>>10);			 \
+      dpd2bcd83(bcd+31, sourlo);}
+
+      #define GETWCOEFF(df, bcd) {??} /* [should never be used]	      */
+    #endif
+
+    /* Macros to decode the coefficient in a finite decFloat *df into */
+    /* a base-billion uInt array, with the least-significant	      */
+    /* 0-999999999 'digit' at offset 0.				      */
+
+    /* Decode the declets.  After extracting each one, it is decoded  */
+    /* to binary using a table lookup.	Three tables are used; one    */
+    /* the usual DPD to binary, the other two pre-multiplied by 1000  */
+    /* and 1000000 to avoid multiplication during decode.  These      */
+    /* tables can also be used for multiplying up the MSD as the DPD  */
+    /* code for 0 through 9 is the identity.			      */
+    #define DPD2BIN0 DPD2BIN	     /* for prettier code	      */
+
+    #if DECPMAX==7
+    #define GETCOEFFBILL(df, buf) {			      \
+      uInt sourhi=DFWORD(df, 0);			      \
+      (buf)[0]=DPD2BIN0[sourhi&0x3ff]			      \
+	      +DPD2BINK[(sourhi>>10)&0x3ff]		      \
+	      +DPD2BINM[DECCOMBMSD[sourhi>>26]];}
+
+    #elif DECPMAX==16
+    #define GETCOEFFBILL(df, buf) {			      \
+      uInt sourhi, sourlo;				      \
+      sourlo=DFWORD(df, 1);				      \
+      (buf)[0]=DPD2BIN0[sourlo&0x3ff]			      \
+	      +DPD2BINK[(sourlo>>10)&0x3ff]		      \
+	      +DPD2BINM[(sourlo>>20)&0x3ff];		      \
+      sourhi=DFWORD(df, 0);				      \
+      (buf)[1]=DPD2BIN0[((sourhi<<2) | (sourlo>>30))&0x3ff]   \
+	      +DPD2BINK[(sourhi>>8)&0x3ff]		      \
+	      +DPD2BINM[DECCOMBMSD[sourhi>>26]];}
+
+    #elif DECPMAX==34
+    #define GETCOEFFBILL(df, buf) {			      \
+      uInt sourhi, sourmh, sourml, sourlo;		      \
+      sourlo=DFWORD(df, 3);				      \
+      (buf)[0]=DPD2BIN0[sourlo&0x3ff]			      \
+	      +DPD2BINK[(sourlo>>10)&0x3ff]		      \
+	      +DPD2BINM[(sourlo>>20)&0x3ff];		      \
+      sourml=DFWORD(df, 2);				      \
+      (buf)[1]=DPD2BIN0[((sourml<<2) | (sourlo>>30))&0x3ff]   \
+	      +DPD2BINK[(sourml>>8)&0x3ff]		      \
+	      +DPD2BINM[(sourml>>18)&0x3ff];		      \
+      sourmh=DFWORD(df, 1);				      \
+      (buf)[2]=DPD2BIN0[((sourmh<<4) | (sourml>>28))&0x3ff]   \
+	      +DPD2BINK[(sourmh>>6)&0x3ff]		      \
+	      +DPD2BINM[(sourmh>>16)&0x3ff];		      \
+      sourhi=DFWORD(df, 0);				      \
+      (buf)[3]=DPD2BIN0[((sourhi<<6) | (sourmh>>26))&0x3ff]   \
+	      +DPD2BINK[(sourhi>>4)&0x3ff]		      \
+	      +DPD2BINM[DECCOMBMSD[sourhi>>26]];}
+
+    #endif
+
+    /* Macros to decode the coefficient in a finite decFloat *df into */
+    /* a base-thousand uInt array, with the least-significant 0-999   */
+    /* 'digit' at offset 0.					      */
+
+    /* Decode the declets.  After extracting each one, it is decoded  */
+    /* to binary using a table lookup.				      */
+    #if DECPMAX==7
+    #define GETCOEFFTHOU(df, buf) {			      \
+      uInt sourhi=DFWORD(df, 0);			      \
+      (buf)[0]=DPD2BIN[sourhi&0x3ff];			      \
+      (buf)[1]=DPD2BIN[(sourhi>>10)&0x3ff];		      \
+      (buf)[2]=DECCOMBMSD[sourhi>>26];}
+
+    #elif DECPMAX==16
+    #define GETCOEFFTHOU(df, buf) {			      \
+      uInt sourhi, sourlo;				      \
+      sourlo=DFWORD(df, 1);				      \
+      (buf)[0]=DPD2BIN[sourlo&0x3ff];			      \
+      (buf)[1]=DPD2BIN[(sourlo>>10)&0x3ff];		      \
+      (buf)[2]=DPD2BIN[(sourlo>>20)&0x3ff];		      \
+      sourhi=DFWORD(df, 0);				      \
+      (buf)[3]=DPD2BIN[((sourhi<<2) | (sourlo>>30))&0x3ff];   \
+      (buf)[4]=DPD2BIN[(sourhi>>8)&0x3ff];		      \
+      (buf)[5]=DECCOMBMSD[sourhi>>26];}
+
+    #elif DECPMAX==34
+    #define GETCOEFFTHOU(df, buf) {			      \
+      uInt sourhi, sourmh, sourml, sourlo;		      \
+      sourlo=DFWORD(df, 3);				      \
+      (buf)[0]=DPD2BIN[sourlo&0x3ff];			      \
+      (buf)[1]=DPD2BIN[(sourlo>>10)&0x3ff];		      \
+      (buf)[2]=DPD2BIN[(sourlo>>20)&0x3ff];		      \
+      sourml=DFWORD(df, 2);				      \
+      (buf)[3]=DPD2BIN[((sourml<<2) | (sourlo>>30))&0x3ff];   \
+      (buf)[4]=DPD2BIN[(sourml>>8)&0x3ff];		      \
+      (buf)[5]=DPD2BIN[(sourml>>18)&0x3ff];		      \
+      sourmh=DFWORD(df, 1);				      \
+      (buf)[6]=DPD2BIN[((sourmh<<4) | (sourml>>28))&0x3ff];   \
+      (buf)[7]=DPD2BIN[(sourmh>>6)&0x3ff];		      \
+      (buf)[8]=DPD2BIN[(sourmh>>16)&0x3ff];		      \
+      sourhi=DFWORD(df, 0);				      \
+      (buf)[9]=DPD2BIN[((sourhi<<6) | (sourmh>>26))&0x3ff];   \
+      (buf)[10]=DPD2BIN[(sourhi>>4)&0x3ff];		      \
+      (buf)[11]=DECCOMBMSD[sourhi>>26];}
+
+    #endif
+
+    /* Set a decFloat to the maximum positive finite number (Nmax)    */
+    #if DECPMAX==7
+    #define DFSETNMAX(df)	     \
+      {DFWORD(df, 0)=0x77f3fcff;}
+    #elif DECPMAX==16
+    #define DFSETNMAX(df)	     \
+      {DFWORD(df, 0)=0x77fcff3f;     \
+       DFWORD(df, 1)=0xcff3fcff;}
+    #elif DECPMAX==34
+    #define DFSETNMAX(df)	     \
+      {DFWORD(df, 0)=0x77ffcff3;     \
+       DFWORD(df, 1)=0xfcff3fcf;     \
+       DFWORD(df, 2)=0xf3fcff3f;     \
+       DFWORD(df, 3)=0xcff3fcff;}
+    #endif
+
+  /* [end of format-dependent macros and constants]		      */
+  #endif
+
+#else
+  #error decNumberLocal included more than once
+#endif