URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
Compare Revisions
- This comparison shows the changes necessary to convert path
/openrisc/trunk/gnu-old/gdb-7.1/libdecnumber/dpd
- from Rev 816 to Rev 834
- ↔ Reverse comparison
Rev 816 → Rev 834
/decimal128.h
File deleted
decimal128.h
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal32Symbols.h
===================================================================
--- decimal32Symbols.h (revision 816)
+++ decimal32Symbols.h (nonexistent)
@@ -1,26 +0,0 @@
-#if !defined(DECIMAL32SYMBOLS)
-#define DECIMAL32SYMBOLS
-
-#ifdef IN_LIBGCC2
-#define decDigitsFromDPD __decDigitsFromDPD
-#define decDigitsToDPD __decDigitsToDPD
-#define decimal32Canonical __decimal32Canonical
-#define decimal32FromNumber __decimal32FromNumber
-#define decimal32FromString __decimal32FromString
-#define decimal32IsCanonical __decimal32IsCanonical
-#define decimal32ToEngString __decimal32ToEngString
-#define decimal32ToNumber __decimal32ToNumber
-#define decimal32ToString __decimal32ToString
-#define COMBEXP __decnnCOMBEXP
-#define COMBMSD __decnnCOMBMSD
-
-/* DPD2BIN and BIN2DPD are used in support for decimal32/decimal64/decimal128
- and also in support for decSingle/decDouble/decQuad. Rename them in case
- both types of support are used in the same executable. */
-#undef DPD2BIN
-#define DPD2BIN __decnnDPD2BIN
-#undef BIN2DPD
-#define BIN2DPD __decnnBIN2DPD
-#endif
-
-#endif
decimal32Symbols.h
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal32.c
===================================================================
--- decimal32.c (revision 816)
+++ decimal32.c (nonexistent)
@@ -1,483 +0,0 @@
-/* Decimal 32-bit format module for the decNumber C Library.
- Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
- Contributed by IBM Corporation. Author Mike Cowlishaw.
-
- This file is part of GCC.
-
- GCC is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3, or (at your option) any later
- version.
-
- GCC is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- /* [for memset/memcpy] */
-#include /* [for printf] */
-
-#include "dconfig.h" /* GCC definitions */
-#define DECNUMDIGITS 7 /* make decNumbers with space for 7 */
-#include "decNumber.h" /* base number library */
-#include "decNumberLocal.h" /* decNumber local types, etc. */
-#include "decimal32.h" /* our primary include */
-
-/* Utility tables and routines [in decimal64.c] */
-extern const uInt COMBEXP[32], COMBMSD[32];
-extern const uShort DPD2BIN[1024];
-extern const uShort BIN2DPD[1000];
-extern const uByte BIN2CHAR[4001];
-
-extern void decDigitsToDPD(const decNumber *, uInt *, Int);
-extern void decDigitsFromDPD(decNumber *, const uInt *, Int);
-
-#if DECTRACE || DECCHECK
-void decimal32Show(const decimal32 *); /* for debug */
-extern void decNumberShow(const decNumber *); /* .. */
-#endif
-
-/* Useful macro */
-/* Clear a structure (e.g., a decNumber) */
-#define DEC_clear(d) memset(d, 0, sizeof(*d))
-
-/* ------------------------------------------------------------------ */
-/* decimal32FromNumber -- convert decNumber to decimal32 */
-/* */
-/* ds is the target decimal32 */
-/* dn is the source number (assumed valid) */
-/* set is the context, used only for reporting errors */
-/* */
-/* The set argument is used only for status reporting and for the */
-/* rounding mode (used if the coefficient is more than DECIMAL32_Pmax */
-/* digits or an overflow is detected). If the exponent is out of the */
-/* valid range then Overflow or Underflow will be raised. */
-/* After Underflow a subnormal result is possible. */
-/* */
-/* DEC_Clamped is set if the number has to be 'folded down' to fit, */
-/* by reducing its exponent and multiplying the coefficient by a */
-/* power of ten, or if the exponent on a zero had to be clamped. */
-/* ------------------------------------------------------------------ */
-decimal32 * decimal32FromNumber(decimal32 *d32, const decNumber *dn,
- decContext *set) {
- uInt status=0; /* status accumulator */
- Int ae; /* adjusted exponent */
- decNumber dw; /* work */
- decContext dc; /* .. */
- uInt comb, exp; /* .. */
- uInt uiwork; /* for macros */
- uInt targ=0; /* target 32-bit */
-
- /* If the number has too many digits, or the exponent could be */
- /* out of range then reduce the number under the appropriate */
- /* constraints. This could push the number to Infinity or zero, */
- /* so this check and rounding must be done before generating the */
- /* decimal32] */
- ae=dn->exponent+dn->digits-1; /* [0 if special] */
- if (dn->digits>DECIMAL32_Pmax /* too many digits */
- || ae>DECIMAL32_Emax /* likely overflow */
- || aeround; /* use supplied rounding */
- decNumberPlus(&dw, dn, &dc); /* (round and check) */
- /* [this changes -0 to 0, so enforce the sign...] */
- dw.bits|=dn->bits&DECNEG;
- status=dc.status; /* save status */
- dn=&dw; /* use the work number */
- } /* maybe out of range */
-
- if (dn->bits&DECSPECIAL) { /* a special value */
- if (dn->bits&DECINF) targ=DECIMAL_Inf<<24;
- else { /* sNaN or qNaN */
- if ((*dn->lsu!=0 || dn->digits>1) /* non-zero coefficient */
- && (dn->digitsbits&DECNAN) targ|=DECIMAL_NaN<<24;
- else targ|=DECIMAL_sNaN<<24;
- } /* a NaN */
- } /* special */
-
- else { /* is finite */
- if (decNumberIsZero(dn)) { /* is a zero */
- /* set and clamp exponent */
- if (dn->exponent<-DECIMAL32_Bias) {
- exp=0; /* low clamp */
- status|=DEC_Clamped;
- }
- else {
- exp=dn->exponent+DECIMAL32_Bias; /* bias exponent */
- if (exp>DECIMAL32_Ehigh) { /* top clamp */
- exp=DECIMAL32_Ehigh;
- status|=DEC_Clamped;
- }
- }
- comb=(exp>>3) & 0x18; /* msd=0, exp top 2 bits .. */
- }
- else { /* non-zero finite number */
- uInt msd; /* work */
- Int pad=0; /* coefficient pad digits */
-
- /* the dn is known to fit, but it may need to be padded */
- exp=(uInt)(dn->exponent+DECIMAL32_Bias); /* bias exponent */
- if (exp>DECIMAL32_Ehigh) { /* fold-down case */
- pad=exp-DECIMAL32_Ehigh;
- exp=DECIMAL32_Ehigh; /* [to maximum] */
- status|=DEC_Clamped;
- }
-
- /* fastpath common case */
- if (DECDPUN==3 && pad==0) {
- targ=BIN2DPD[dn->lsu[0]];
- if (dn->digits>3) targ|=(uInt)(BIN2DPD[dn->lsu[1]])<<10;
- msd=(dn->digits==7 ? dn->lsu[2] : 0);
- }
- else { /* general case */
- decDigitsToDPD(dn, &targ, pad);
- /* save and clear the top digit */
- msd=targ>>20;
- targ&=0x000fffff;
- }
-
- /* create the combination field */
- if (msd>=8) comb=0x18 | ((exp>>5) & 0x06) | (msd & 0x01);
- else comb=((exp>>3) & 0x18) | msd;
- }
- targ|=comb<<26; /* add combination field .. */
- targ|=(exp&0x3f)<<20; /* .. and exponent continuation */
- } /* finite */
-
- if (dn->bits&DECNEG) targ|=0x80000000; /* add sign bit */
-
- /* now write to storage; this is endian */
- UBFROMUI(d32->bytes, targ); /* directly store the int */
-
- if (status!=0) decContextSetStatus(set, status); /* pass on status */
- /* decimal32Show(d32); */
- return d32;
- } /* decimal32FromNumber */
-
-/* ------------------------------------------------------------------ */
-/* decimal32ToNumber -- convert decimal32 to decNumber */
-/* d32 is the source decimal32 */
-/* dn is the target number, with appropriate space */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-decNumber * decimal32ToNumber(const decimal32 *d32, decNumber *dn) {
- uInt msd; /* coefficient MSD */
- uInt exp; /* exponent top two bits */
- uInt comb; /* combination field */
- uInt sour; /* source 32-bit */
- uInt uiwork; /* for macros */
-
- /* load source from storage; this is endian */
- sour=UBTOUI(d32->bytes); /* directly load the int */
-
- comb=(sour>>26)&0x1f; /* combination field */
-
- decNumberZero(dn); /* clean number */
- if (sour&0x80000000) dn->bits=DECNEG; /* set sign if negative */
-
- msd=COMBMSD[comb]; /* decode the combination field */
- exp=COMBEXP[comb]; /* .. */
-
- if (exp==3) { /* is a special */
- if (msd==0) {
- dn->bits|=DECINF;
- return dn; /* no coefficient needed */
- }
- else if (sour&0x02000000) dn->bits|=DECSNAN;
- else dn->bits|=DECNAN;
- msd=0; /* no top digit */
- }
- else { /* is a finite number */
- dn->exponent=(exp<<6)+((sour>>20)&0x3f)-DECIMAL32_Bias; /* unbiased */
- }
-
- /* get the coefficient */
- sour&=0x000fffff; /* clean coefficient continuation */
- if (msd) { /* non-zero msd */
- sour|=msd<<20; /* prefix to coefficient */
- decDigitsFromDPD(dn, &sour, 3); /* process 3 declets */
- return dn;
- }
- /* msd=0 */
- if (!sour) return dn; /* easy: coefficient is 0 */
- if (sour&0x000ffc00) /* need 2 declets? */
- decDigitsFromDPD(dn, &sour, 2); /* process 2 declets */
- else
- decDigitsFromDPD(dn, &sour, 1); /* process 1 declet */
- return dn;
- } /* decimal32ToNumber */
-
-/* ------------------------------------------------------------------ */
-/* to-scientific-string -- conversion to numeric string */
-/* to-engineering-string -- conversion to numeric string */
-/* */
-/* decimal32ToString(d32, string); */
-/* decimal32ToEngString(d32, string); */
-/* */
-/* d32 is the decimal32 format number to convert */
-/* string is the string where the result will be laid out */
-/* */
-/* string must be at least 24 characters */
-/* */
-/* No error is possible, and no status can be set. */
-/* ------------------------------------------------------------------ */
-char * decimal32ToEngString(const decimal32 *d32, char *string){
- decNumber dn; /* work */
- decimal32ToNumber(d32, &dn);
- decNumberToEngString(&dn, string);
- return string;
- } /* decimal32ToEngString */
-
-char * decimal32ToString(const decimal32 *d32, char *string){
- uInt msd; /* coefficient MSD */
- Int exp; /* exponent top two bits or full */
- uInt comb; /* combination field */
- char *cstart; /* coefficient start */
- char *c; /* output pointer in string */
- const uByte *u; /* work */
- char *s, *t; /* .. (source, target) */
- Int dpd; /* .. */
- Int pre, e; /* .. */
- uInt uiwork; /* for macros */
- uInt sour; /* source 32-bit */
-
- /* load source from storage; this is endian */
- sour=UBTOUI(d32->bytes); /* directly load the int */
-
- c=string; /* where result will go */
- if (((Int)sour)<0) *c++='-'; /* handle sign */
-
- comb=(sour>>26)&0x1f; /* combination field */
- msd=COMBMSD[comb]; /* decode the combination field */
- exp=COMBEXP[comb]; /* .. */
-
- if (exp==3) {
- if (msd==0) { /* infinity */
- strcpy(c, "Inf");
- strcpy(c+3, "inity");
- return string; /* easy */
- }
- if (sour&0x02000000) *c++='s'; /* sNaN */
- strcpy(c, "NaN"); /* complete word */
- c+=3; /* step past */
- if ((sour&0x000fffff)==0) return string; /* zero payload */
- /* otherwise drop through to add integer; set correct exp */
- exp=0; msd=0; /* setup for following code */
- }
- else exp=(exp<<6)+((sour>>20)&0x3f)-DECIMAL32_Bias; /* unbiased */
-
- /* convert 7 digits of significand to characters */
- cstart=c; /* save start of coefficient */
- if (msd) *c++='0'+(char)msd; /* non-zero most significant digit */
-
- /* Now decode the declets. After extracting each one, it is */
- /* decoded to binary and then to a 4-char sequence by table lookup; */
- /* the 4-chars are a 1-char length (significant digits, except 000 */
- /* has length 0). This allows us to left-align the first declet */
- /* with non-zero content, then remaining ones are full 3-char */
- /* length. We use fixed-length memcpys because variable-length */
- /* causes a subroutine call in GCC. (These are length 4 for speed */
- /* and are safe because the array has an extra terminator byte.) */
- #define dpd2char u=&BIN2CHAR[DPD2BIN[dpd]*4]; \
- if (c!=cstart) {memcpy(c, u+1, 4); c+=3;} \
- else if (*u) {memcpy(c, u+4-*u, 4); c+=*u;}
-
- dpd=(sour>>10)&0x3ff; /* declet 1 */
- dpd2char;
- dpd=(sour)&0x3ff; /* declet 2 */
- dpd2char;
-
- if (c==cstart) *c++='0'; /* all zeros -- make 0 */
-
- if (exp==0) { /* integer or NaN case -- easy */
- *c='\0'; /* terminate */
- return string;
- }
-
- /* non-0 exponent */
- e=0; /* assume no E */
- pre=c-cstart+exp;
- /* [here, pre-exp is the digits count (==1 for zero)] */
- if (exp>0 || pre<-5) { /* need exponential form */
- e=pre-1; /* calculate E value */
- pre=1; /* assume one digit before '.' */
- } /* exponential form */
-
- /* modify the coefficient, adding 0s, '.', and E+nn as needed */
- s=c-1; /* source (LSD) */
- if (pre>0) { /* ddd.ddd (plain), perhaps with E */
- char *dotat=cstart+pre;
- if (dotat=dotat; s--, t--) *t=*s; /* open the gap; leave t at gap */
- *t='.'; /* insert the dot */
- c++; /* length increased by one */
- }
-
- /* finally add the E-part, if needed; it will never be 0, and has */
- /* a maximum length of 3 digits (E-101 case) */
- if (e!=0) {
- *c++='E'; /* starts with E */
- *c++='+'; /* assume positive */
- if (e<0) {
- *(c-1)='-'; /* oops, need '-' */
- e=-e; /* uInt, please */
- }
- u=&BIN2CHAR[e*4]; /* -> length byte */
- memcpy(c, u+4-*u, 4); /* copy fixed 4 characters [is safe] */
- c+=*u; /* bump pointer appropriately */
- }
- *c='\0'; /* add terminator */
- /*printf("res %s\n", string); */
- return string;
- } /* pre>0 */
-
- /* -5<=pre<=0: here for plain 0.ddd or 0.000ddd forms (can never have E) */
- t=c+1-pre;
- *(t+1)='\0'; /* can add terminator now */
- for (; s>=cstart; s--, t--) *t=*s; /* shift whole coefficient right */
- c=cstart;
- *c++='0'; /* always starts with 0. */
- *c++='.';
- for (; pre<0; pre++) *c++='0'; /* add any 0's after '.' */
- /*printf("res %s\n", string); */
- return string;
- } /* decimal32ToString */
-
-/* ------------------------------------------------------------------ */
-/* to-number -- conversion from numeric string */
-/* */
-/* decimal32FromString(result, string, set); */
-/* */
-/* result is the decimal32 format number which gets the result of */
-/* the conversion */
-/* *string is the character string which should contain a valid */
-/* number (which may be a special value) */
-/* set is the context */
-/* */
-/* The context is supplied to this routine is used for error handling */
-/* (setting of status and traps) and for the rounding mode, only. */
-/* If an error occurs, the result will be a valid decimal32 NaN. */
-/* ------------------------------------------------------------------ */
-decimal32 * decimal32FromString(decimal32 *result, const char *string,
- decContext *set) {
- decContext dc; /* work */
- decNumber dn; /* .. */
-
- decContextDefault(&dc, DEC_INIT_DECIMAL32); /* no traps, please */
- dc.round=set->round; /* use supplied rounding */
-
- decNumberFromString(&dn, string, &dc); /* will round if needed */
- decimal32FromNumber(result, &dn, &dc);
- if (dc.status!=0) { /* something happened */
- decContextSetStatus(set, dc.status); /* .. pass it on */
- }
- return result;
- } /* decimal32FromString */
-
-/* ------------------------------------------------------------------ */
-/* decimal32IsCanonical -- test whether encoding is canonical */
-/* d32 is the source decimal32 */
-/* returns 1 if the encoding of d32 is canonical, 0 otherwise */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-uInt decimal32IsCanonical(const decimal32 *d32) {
- decNumber dn; /* work */
- decimal32 canon; /* .. */
- decContext dc; /* .. */
- decContextDefault(&dc, DEC_INIT_DECIMAL32);
- decimal32ToNumber(d32, &dn);
- decimal32FromNumber(&canon, &dn, &dc);/* canon will now be canonical */
- return memcmp(d32, &canon, DECIMAL32_Bytes)==0;
- } /* decimal32IsCanonical */
-
-/* ------------------------------------------------------------------ */
-/* decimal32Canonical -- copy an encoding, ensuring it is canonical */
-/* d32 is the source decimal32 */
-/* result is the target (may be the same decimal32) */
-/* returns result */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-decimal32 * decimal32Canonical(decimal32 *result, const decimal32 *d32) {
- decNumber dn; /* work */
- decContext dc; /* .. */
- decContextDefault(&dc, DEC_INIT_DECIMAL32);
- decimal32ToNumber(d32, &dn);
- decimal32FromNumber(result, &dn, &dc);/* result will now be canonical */
- return result;
- } /* decimal32Canonical */
-
-#if DECTRACE || DECCHECK
-/* Macros for accessing decimal32 fields. These assume the argument
- is a reference (pointer) to the decimal32 structure, and the
- decimal32 is in network byte order (big-endian) */
-/* Get sign */
-#define decimal32Sign(d) ((unsigned)(d)->bytes[0]>>7)
-
-/* Get combination field */
-#define decimal32Comb(d) (((d)->bytes[0] & 0x7c)>>2)
-
-/* Get exponent continuation [does not remove bias] */
-#define decimal32ExpCon(d) ((((d)->bytes[0] & 0x03)<<4) \
- | ((unsigned)(d)->bytes[1]>>4))
-
-/* Set sign [this assumes sign previously 0] */
-#define decimal32SetSign(d, b) { \
- (d)->bytes[0]|=((unsigned)(b)<<7);}
-
-/* Set exponent continuation [does not apply bias] */
-/* This assumes range has been checked and exponent previously 0; */
-/* type of exponent must be unsigned */
-#define decimal32SetExpCon(d, e) { \
- (d)->bytes[0]|=(uByte)((e)>>4); \
- (d)->bytes[1]|=(uByte)(((e)&0x0F)<<4);}
-
-/* ------------------------------------------------------------------ */
-/* decimal32Show -- display a decimal32 in hexadecimal [debug aid] */
-/* d32 -- the number to show */
-/* ------------------------------------------------------------------ */
-/* Also shows sign/cob/expconfields extracted - valid bigendian only */
-void decimal32Show(const decimal32 *d32) {
- char buf[DECIMAL32_Bytes*2+1];
- Int i, j=0;
-
- if (DECLITEND) {
- for (i=0; ibytes[3-i]);
- }
- printf(" D32> %s [S:%d Cb:%02x Ec:%02x] LittleEndian\n", buf,
- d32->bytes[3]>>7, (d32->bytes[3]>>2)&0x1f,
- ((d32->bytes[3]&0x3)<<4)| (d32->bytes[2]>>4));
- }
- else {
- for (i=0; ibytes[i]);
- }
- printf(" D32> %s [S:%d Cb:%02x Ec:%02x] BigEndian\n", buf,
- decimal32Sign(d32), decimal32Comb(d32), decimal32ExpCon(d32));
- }
- } /* decimal32Show */
-#endif
decimal32.c
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal64Symbols.h
===================================================================
--- decimal64Symbols.h (revision 816)
+++ decimal64Symbols.h (nonexistent)
@@ -1,26 +0,0 @@
-#if !defined(DECIMAL64SYMBOLS)
-#define DECIMAL64SYMBOLS
-
-#ifdef IN_LIBGCC2
-#define decDigitsFromDPD __decDigitsFromDPD
-#define decDigitsToDPD __decDigitsToDPD
-#define decimal64Canonical __decimal64Canonical
-#define decimal64FromNumber __decimal64FromNumber
-#define decimal64FromString __decimal64FromString
-#define decimal64IsCanonical __decimal64IsCanonical
-#define decimal64ToEngString __decimal64ToEngString
-#define decimal64ToNumber __decimal64ToNumber
-#define decimal64ToString __decimal64ToString
-#define COMBEXP __decnnCOMBEXP
-#define COMBMSD __decnnCOMBMSD
-
-/* DPD2BIN and BIN2DPD are used in support for decimal32/decimal64/decimal128
- and also in support for decSingle/decDouble/decQuad. Rename them in case
- both types of support are used in the same executable. */
-#undef DPD2BIN
-#define DPD2BIN __decnnDPD2BIN
-#undef BIN2DPD
-#define BIN2DPD __decnnBIN2DPD
-#endif
-
-#endif
decimal64Symbols.h
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal128Symbols.h
===================================================================
--- decimal128Symbols.h (revision 816)
+++ decimal128Symbols.h (nonexistent)
@@ -1,26 +0,0 @@
-#if !defined(DECIMAL128SYMBOLS)
-#define DECIMAL128SYMBOLS
-
-#ifdef IN_LIBGCC2
-#define decDigitsFromDPD __decDigitsFromDPD
-#define decDigitsToDPD __decDigitsToDPD
-#define decimal128Canonical __decimal128Canonical
-#define decimal128FromNumber __decimal128FromNumber
-#define decimal128FromString __decimal128FromString
-#define decimal128IsCanonical __decimal128IsCanonical
-#define decimal128ToEngString __decimal128ToEngString
-#define decimal128ToNumber __decimal128ToNumber
-#define decimal128ToString __decimal128ToString
-#define COMBEXP __decnnCOMBEXP
-#define COMBMSD __decnnCOMBMSD
-
-/* DPD2BIN and BIN2DPD are used in support for decimal32/decimal64/decimal128
- and also in support for decSingle/decDouble/decQuad. Rename them in case
- both types of support are used in the same executable. */
-#undef DPD2BIN
-#define DPD2BIN __decnnDPD2BIN
-#undef BIN2DPD
-#define BIN2DPD __decnnBIN2DPD
-#endif
-
-#endif
decimal128Symbols.h
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal32.h
===================================================================
--- decimal32.h (revision 816)
+++ decimal32.h (nonexistent)
@@ -1,102 +0,0 @@
-/* Decimal 32-bit format module header for the decNumber C Library.
- Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
- Contributed by IBM Corporation. Author Mike Cowlishaw.
-
- This file is part of GCC.
-
- GCC is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3, or (at your option) any later
- version.
-
- GCC is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-=7 for safe use
- #endif
- #endif
-
- #ifndef DECNUMDIGITS
- #define DECNUMDIGITS DECIMAL32_Pmax /* size if not already defined*/
- #endif
- #ifndef DECNUMBER
- #include "decNumber.h" /* context and number library */
- #endif
-
- /* Decimal 32-bit type, accessible by bytes */
- typedef struct {
- uint8_t bytes[DECIMAL32_Bytes]; /* decimal32: 1, 5, 6, 20 bits*/
- } decimal32;
-
- /* special values [top byte excluding sign bit; last two bits are */
- /* don't-care for Infinity on input, last bit don't-care for NaN] */
- #if !defined(DECIMAL_NaN)
- #define DECIMAL_NaN 0x7c /* 0 11111 00 NaN */
- #define DECIMAL_sNaN 0x7e /* 0 11111 10 sNaN */
- #define DECIMAL_Inf 0x78 /* 0 11110 00 Infinity */
- #endif
-
- /* ---------------------------------------------------------------- */
- /* Routines */
- /* ---------------------------------------------------------------- */
-
-#include "decimal32Symbols.h"
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /* String conversions */
- decimal32 * decimal32FromString(decimal32 *, const char *, decContext *);
- char * decimal32ToString(const decimal32 *, char *);
- char * decimal32ToEngString(const decimal32 *, char *);
-
- /* decNumber conversions */
- decimal32 * decimal32FromNumber(decimal32 *, const decNumber *,
- decContext *);
- decNumber * decimal32ToNumber(const decimal32 *, decNumber *);
-
- /* Format-dependent utilities */
- uint32_t decimal32IsCanonical(const decimal32 *);
- decimal32 * decimal32Canonical(decimal32 *, const decimal32 *);
-
- #ifdef __cplusplus
- }
- #endif
-
-#endif
decimal32.h
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal64.c
===================================================================
--- decimal64.c (revision 816)
+++ decimal64.c (nonexistent)
@@ -1,846 +0,0 @@
-/* Decimal 64-bit format module for the decNumber C Library.
- Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
- Contributed by IBM Corporation. Author Mike Cowlishaw.
-
- This file is part of GCC.
-
- GCC is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3, or (at your option) any later
- version.
-
- GCC is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- /* [for memset/memcpy] */
-#include /* [for printf] */
-
-#include "dconfig.h" /* GCC definitions */
-#define DECNUMDIGITS 16 /* make decNumbers with space for 16 */
-#include "decNumber.h" /* base number library */
-#include "decNumberLocal.h" /* decNumber local types, etc. */
-#include "decimal64.h" /* our primary include */
-
-/* Utility routines and tables [in decimal64.c]; externs for C++ */
-extern const uInt COMBEXP[32], COMBMSD[32];
-extern const uShort DPD2BIN[1024];
-extern const uShort BIN2DPD[1000];
-extern const uByte BIN2CHAR[4001];
-
-extern void decDigitsFromDPD(decNumber *, const uInt *, Int);
-extern void decDigitsToDPD(const decNumber *, uInt *, Int);
-
-#if DECTRACE || DECCHECK
-void decimal64Show(const decimal64 *); /* for debug */
-extern void decNumberShow(const decNumber *); /* .. */
-#endif
-
-/* Useful macro */
-/* Clear a structure (e.g., a decNumber) */
-#define DEC_clear(d) memset(d, 0, sizeof(*d))
-
-/* define and include the tables to use for conversions */
-#define DEC_BIN2CHAR 1
-#define DEC_DPD2BIN 1
-#define DEC_BIN2DPD 1 /* used for all sizes */
-#include "decDPD.h" /* lookup tables */
-
-/* ------------------------------------------------------------------ */
-/* decimal64FromNumber -- convert decNumber to decimal64 */
-/* */
-/* ds is the target decimal64 */
-/* dn is the source number (assumed valid) */
-/* set is the context, used only for reporting errors */
-/* */
-/* The set argument is used only for status reporting and for the */
-/* rounding mode (used if the coefficient is more than DECIMAL64_Pmax */
-/* digits or an overflow is detected). If the exponent is out of the */
-/* valid range then Overflow or Underflow will be raised. */
-/* After Underflow a subnormal result is possible. */
-/* */
-/* DEC_Clamped is set if the number has to be 'folded down' to fit, */
-/* by reducing its exponent and multiplying the coefficient by a */
-/* power of ten, or if the exponent on a zero had to be clamped. */
-/* ------------------------------------------------------------------ */
-decimal64 * decimal64FromNumber(decimal64 *d64, const decNumber *dn,
- decContext *set) {
- uInt status=0; /* status accumulator */
- Int ae; /* adjusted exponent */
- decNumber dw; /* work */
- decContext dc; /* .. */
- uInt comb, exp; /* .. */
- uInt uiwork; /* for macros */
- uInt targar[2]={0, 0}; /* target 64-bit */
- #define targhi targar[1] /* name the word with the sign */
- #define targlo targar[0] /* and the other */
-
- /* If the number has too many digits, or the exponent could be */
- /* out of range then reduce the number under the appropriate */
- /* constraints. This could push the number to Infinity or zero, */
- /* so this check and rounding must be done before generating the */
- /* decimal64] */
- ae=dn->exponent+dn->digits-1; /* [0 if special] */
- if (dn->digits>DECIMAL64_Pmax /* too many digits */
- || ae>DECIMAL64_Emax /* likely overflow */
- || aeround; /* use supplied rounding */
- decNumberPlus(&dw, dn, &dc); /* (round and check) */
- /* [this changes -0 to 0, so enforce the sign...] */
- dw.bits|=dn->bits&DECNEG;
- status=dc.status; /* save status */
- dn=&dw; /* use the work number */
- } /* maybe out of range */
-
- if (dn->bits&DECSPECIAL) { /* a special value */
- if (dn->bits&DECINF) targhi=DECIMAL_Inf<<24;
- else { /* sNaN or qNaN */
- if ((*dn->lsu!=0 || dn->digits>1) /* non-zero coefficient */
- && (dn->digitsbits&DECNAN) targhi|=DECIMAL_NaN<<24;
- else targhi|=DECIMAL_sNaN<<24;
- } /* a NaN */
- } /* special */
-
- else { /* is finite */
- if (decNumberIsZero(dn)) { /* is a zero */
- /* set and clamp exponent */
- if (dn->exponent<-DECIMAL64_Bias) {
- exp=0; /* low clamp */
- status|=DEC_Clamped;
- }
- else {
- exp=dn->exponent+DECIMAL64_Bias; /* bias exponent */
- if (exp>DECIMAL64_Ehigh) { /* top clamp */
- exp=DECIMAL64_Ehigh;
- status|=DEC_Clamped;
- }
- }
- comb=(exp>>5) & 0x18; /* msd=0, exp top 2 bits .. */
- }
- else { /* non-zero finite number */
- uInt msd; /* work */
- Int pad=0; /* coefficient pad digits */
-
- /* the dn is known to fit, but it may need to be padded */
- exp=(uInt)(dn->exponent+DECIMAL64_Bias); /* bias exponent */
- if (exp>DECIMAL64_Ehigh) { /* fold-down case */
- pad=exp-DECIMAL64_Ehigh;
- exp=DECIMAL64_Ehigh; /* [to maximum] */
- status|=DEC_Clamped;
- }
-
- /* fastpath common case */
- if (DECDPUN==3 && pad==0) {
- uInt dpd[6]={0,0,0,0,0,0};
- uInt i;
- Int d=dn->digits;
- for (i=0; d>0; i++, d-=3) dpd[i]=BIN2DPD[dn->lsu[i]];
- targlo =dpd[0];
- targlo|=dpd[1]<<10;
- targlo|=dpd[2]<<20;
- if (dn->digits>6) {
- targlo|=dpd[3]<<30;
- targhi =dpd[3]>>2;
- targhi|=dpd[4]<<8;
- }
- msd=dpd[5]; /* [did not really need conversion] */
- }
- else { /* general case */
- decDigitsToDPD(dn, targar, pad);
- /* save and clear the top digit */
- msd=targhi>>18;
- targhi&=0x0003ffff;
- }
-
- /* create the combination field */
- if (msd>=8) comb=0x18 | ((exp>>7) & 0x06) | (msd & 0x01);
- else comb=((exp>>5) & 0x18) | msd;
- }
- targhi|=comb<<26; /* add combination field .. */
- targhi|=(exp&0xff)<<18; /* .. and exponent continuation */
- } /* finite */
-
- if (dn->bits&DECNEG) targhi|=0x80000000; /* add sign bit */
-
- /* now write to storage; this is now always endian */
- if (DECLITEND) {
- /* lo int then hi */
- UBFROMUI(d64->bytes, targar[0]);
- UBFROMUI(d64->bytes+4, targar[1]);
- }
- else {
- /* hi int then lo */
- UBFROMUI(d64->bytes, targar[1]);
- UBFROMUI(d64->bytes+4, targar[0]);
- }
-
- if (status!=0) decContextSetStatus(set, status); /* pass on status */
- /* decimal64Show(d64); */
- return d64;
- } /* decimal64FromNumber */
-
-/* ------------------------------------------------------------------ */
-/* decimal64ToNumber -- convert decimal64 to decNumber */
-/* d64 is the source decimal64 */
-/* dn is the target number, with appropriate space */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-decNumber * decimal64ToNumber(const decimal64 *d64, decNumber *dn) {
- uInt msd; /* coefficient MSD */
- uInt exp; /* exponent top two bits */
- uInt comb; /* combination field */
- Int need; /* work */
- uInt uiwork; /* for macros */
- uInt sourar[2]; /* source 64-bit */
- #define sourhi sourar[1] /* name the word with the sign */
- #define sourlo sourar[0] /* and the lower word */
-
- /* load source from storage; this is endian */
- if (DECLITEND) {
- sourlo=UBTOUI(d64->bytes ); /* directly load the low int */
- sourhi=UBTOUI(d64->bytes+4); /* then the high int */
- }
- else {
- sourhi=UBTOUI(d64->bytes ); /* directly load the high int */
- sourlo=UBTOUI(d64->bytes+4); /* then the low int */
- }
-
- comb=(sourhi>>26)&0x1f; /* combination field */
-
- decNumberZero(dn); /* clean number */
- if (sourhi&0x80000000) dn->bits=DECNEG; /* set sign if negative */
-
- msd=COMBMSD[comb]; /* decode the combination field */
- exp=COMBEXP[comb]; /* .. */
-
- if (exp==3) { /* is a special */
- if (msd==0) {
- dn->bits|=DECINF;
- return dn; /* no coefficient needed */
- }
- else if (sourhi&0x02000000) dn->bits|=DECSNAN;
- else dn->bits|=DECNAN;
- msd=0; /* no top digit */
- }
- else { /* is a finite number */
- dn->exponent=(exp<<8)+((sourhi>>18)&0xff)-DECIMAL64_Bias; /* unbiased */
- }
-
- /* get the coefficient */
- sourhi&=0x0003ffff; /* clean coefficient continuation */
- if (msd) { /* non-zero msd */
- sourhi|=msd<<18; /* prefix to coefficient */
- need=6; /* process 6 declets */
- }
- else { /* msd=0 */
- if (!sourhi) { /* top word 0 */
- if (!sourlo) return dn; /* easy: coefficient is 0 */
- need=3; /* process at least 3 declets */
- if (sourlo&0xc0000000) need++; /* process 4 declets */
- /* [could reduce some more, here] */
- }
- else { /* some bits in top word, msd=0 */
- need=4; /* process at least 4 declets */
- if (sourhi&0x0003ff00) need++; /* top declet!=0, process 5 */
- }
- } /*msd=0 */
-
- decDigitsFromDPD(dn, sourar, need); /* process declets */
- return dn;
- } /* decimal64ToNumber */
-
-
-/* ------------------------------------------------------------------ */
-/* to-scientific-string -- conversion to numeric string */
-/* to-engineering-string -- conversion to numeric string */
-/* */
-/* decimal64ToString(d64, string); */
-/* decimal64ToEngString(d64, string); */
-/* */
-/* d64 is the decimal64 format number to convert */
-/* string is the string where the result will be laid out */
-/* */
-/* string must be at least 24 characters */
-/* */
-/* No error is possible, and no status can be set. */
-/* ------------------------------------------------------------------ */
-char * decimal64ToEngString(const decimal64 *d64, char *string){
- decNumber dn; /* work */
- decimal64ToNumber(d64, &dn);
- decNumberToEngString(&dn, string);
- return string;
- } /* decimal64ToEngString */
-
-char * decimal64ToString(const decimal64 *d64, char *string){
- uInt msd; /* coefficient MSD */
- Int exp; /* exponent top two bits or full */
- uInt comb; /* combination field */
- char *cstart; /* coefficient start */
- char *c; /* output pointer in string */
- const uByte *u; /* work */
- char *s, *t; /* .. (source, target) */
- Int dpd; /* .. */
- Int pre, e; /* .. */
- uInt uiwork; /* for macros */
-
- uInt sourar[2]; /* source 64-bit */
- #define sourhi sourar[1] /* name the word with the sign */
- #define sourlo sourar[0] /* and the lower word */
-
- /* load source from storage; this is endian */
- if (DECLITEND) {
- sourlo=UBTOUI(d64->bytes ); /* directly load the low int */
- sourhi=UBTOUI(d64->bytes+4); /* then the high int */
- }
- else {
- sourhi=UBTOUI(d64->bytes ); /* directly load the high int */
- sourlo=UBTOUI(d64->bytes+4); /* then the low int */
- }
-
- c=string; /* where result will go */
- if (((Int)sourhi)<0) *c++='-'; /* handle sign */
-
- comb=(sourhi>>26)&0x1f; /* combination field */
- msd=COMBMSD[comb]; /* decode the combination field */
- exp=COMBEXP[comb]; /* .. */
-
- if (exp==3) {
- if (msd==0) { /* infinity */
- strcpy(c, "Inf");
- strcpy(c+3, "inity");
- return string; /* easy */
- }
- if (sourhi&0x02000000) *c++='s'; /* sNaN */
- strcpy(c, "NaN"); /* complete word */
- c+=3; /* step past */
- if (sourlo==0 && (sourhi&0x0003ffff)==0) return string; /* zero payload */
- /* otherwise drop through to add integer; set correct exp */
- exp=0; msd=0; /* setup for following code */
- }
- else exp=(exp<<8)+((sourhi>>18)&0xff)-DECIMAL64_Bias;
-
- /* convert 16 digits of significand to characters */
- cstart=c; /* save start of coefficient */
- if (msd) *c++='0'+(char)msd; /* non-zero most significant digit */
-
- /* Now decode the declets. After extracting each one, it is */
- /* decoded to binary and then to a 4-char sequence by table lookup; */
- /* the 4-chars are a 1-char length (significant digits, except 000 */
- /* has length 0). This allows us to left-align the first declet */
- /* with non-zero content, then remaining ones are full 3-char */
- /* length. We use fixed-length memcpys because variable-length */
- /* causes a subroutine call in GCC. (These are length 4 for speed */
- /* and are safe because the array has an extra terminator byte.) */
- #define dpd2char u=&BIN2CHAR[DPD2BIN[dpd]*4]; \
- if (c!=cstart) {memcpy(c, u+1, 4); c+=3;} \
- else if (*u) {memcpy(c, u+4-*u, 4); c+=*u;}
-
- dpd=(sourhi>>8)&0x3ff; /* declet 1 */
- dpd2char;
- dpd=((sourhi&0xff)<<2) | (sourlo>>30); /* declet 2 */
- dpd2char;
- dpd=(sourlo>>20)&0x3ff; /* declet 3 */
- dpd2char;
- dpd=(sourlo>>10)&0x3ff; /* declet 4 */
- dpd2char;
- dpd=(sourlo)&0x3ff; /* declet 5 */
- dpd2char;
-
- if (c==cstart) *c++='0'; /* all zeros -- make 0 */
-
- if (exp==0) { /* integer or NaN case -- easy */
- *c='\0'; /* terminate */
- return string;
- }
-
- /* non-0 exponent */
- e=0; /* assume no E */
- pre=c-cstart+exp;
- /* [here, pre-exp is the digits count (==1 for zero)] */
- if (exp>0 || pre<-5) { /* need exponential form */
- e=pre-1; /* calculate E value */
- pre=1; /* assume one digit before '.' */
- } /* exponential form */
-
- /* modify the coefficient, adding 0s, '.', and E+nn as needed */
- s=c-1; /* source (LSD) */
- if (pre>0) { /* ddd.ddd (plain), perhaps with E */
- char *dotat=cstart+pre;
- if (dotat=dotat; s--, t--) *t=*s; /* open the gap; leave t at gap */
- *t='.'; /* insert the dot */
- c++; /* length increased by one */
- }
-
- /* finally add the E-part, if needed; it will never be 0, and has */
- /* a maximum length of 3 digits */
- if (e!=0) {
- *c++='E'; /* starts with E */
- *c++='+'; /* assume positive */
- if (e<0) {
- *(c-1)='-'; /* oops, need '-' */
- e=-e; /* uInt, please */
- }
- u=&BIN2CHAR[e*4]; /* -> length byte */
- memcpy(c, u+4-*u, 4); /* copy fixed 4 characters [is safe] */
- c+=*u; /* bump pointer appropriately */
- }
- *c='\0'; /* add terminator */
- /*printf("res %s\n", string); */
- return string;
- } /* pre>0 */
-
- /* -5<=pre<=0: here for plain 0.ddd or 0.000ddd forms (can never have E) */
- t=c+1-pre;
- *(t+1)='\0'; /* can add terminator now */
- for (; s>=cstart; s--, t--) *t=*s; /* shift whole coefficient right */
- c=cstart;
- *c++='0'; /* always starts with 0. */
- *c++='.';
- for (; pre<0; pre++) *c++='0'; /* add any 0's after '.' */
- /*printf("res %s\n", string); */
- return string;
- } /* decimal64ToString */
-
-/* ------------------------------------------------------------------ */
-/* to-number -- conversion from numeric string */
-/* */
-/* decimal64FromString(result, string, set); */
-/* */
-/* result is the decimal64 format number which gets the result of */
-/* the conversion */
-/* *string is the character string which should contain a valid */
-/* number (which may be a special value) */
-/* set is the context */
-/* */
-/* The context is supplied to this routine is used for error handling */
-/* (setting of status and traps) and for the rounding mode, only. */
-/* If an error occurs, the result will be a valid decimal64 NaN. */
-/* ------------------------------------------------------------------ */
-decimal64 * decimal64FromString(decimal64 *result, const char *string,
- decContext *set) {
- decContext dc; /* work */
- decNumber dn; /* .. */
-
- decContextDefault(&dc, DEC_INIT_DECIMAL64); /* no traps, please */
- dc.round=set->round; /* use supplied rounding */
-
- decNumberFromString(&dn, string, &dc); /* will round if needed */
-
- decimal64FromNumber(result, &dn, &dc);
- if (dc.status!=0) { /* something happened */
- decContextSetStatus(set, dc.status); /* .. pass it on */
- }
- return result;
- } /* decimal64FromString */
-
-/* ------------------------------------------------------------------ */
-/* decimal64IsCanonical -- test whether encoding is canonical */
-/* d64 is the source decimal64 */
-/* returns 1 if the encoding of d64 is canonical, 0 otherwise */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-uInt decimal64IsCanonical(const decimal64 *d64) {
- decNumber dn; /* work */
- decimal64 canon; /* .. */
- decContext dc; /* .. */
- decContextDefault(&dc, DEC_INIT_DECIMAL64);
- decimal64ToNumber(d64, &dn);
- decimal64FromNumber(&canon, &dn, &dc);/* canon will now be canonical */
- return memcmp(d64, &canon, DECIMAL64_Bytes)==0;
- } /* decimal64IsCanonical */
-
-/* ------------------------------------------------------------------ */
-/* decimal64Canonical -- copy an encoding, ensuring it is canonical */
-/* d64 is the source decimal64 */
-/* result is the target (may be the same decimal64) */
-/* returns result */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-decimal64 * decimal64Canonical(decimal64 *result, const decimal64 *d64) {
- decNumber dn; /* work */
- decContext dc; /* .. */
- decContextDefault(&dc, DEC_INIT_DECIMAL64);
- decimal64ToNumber(d64, &dn);
- decimal64FromNumber(result, &dn, &dc);/* result will now be canonical */
- return result;
- } /* decimal64Canonical */
-
-#if DECTRACE || DECCHECK
-/* Macros for accessing decimal64 fields. These assume the
- argument is a reference (pointer) to the decimal64 structure,
- and the decimal64 is in network byte order (big-endian) */
-/* Get sign */
-#define decimal64Sign(d) ((unsigned)(d)->bytes[0]>>7)
-
-/* Get combination field */
-#define decimal64Comb(d) (((d)->bytes[0] & 0x7c)>>2)
-
-/* Get exponent continuation [does not remove bias] */
-#define decimal64ExpCon(d) ((((d)->bytes[0] & 0x03)<<6) \
- | ((unsigned)(d)->bytes[1]>>2))
-
-/* Set sign [this assumes sign previously 0] */
-#define decimal64SetSign(d, b) { \
- (d)->bytes[0]|=((unsigned)(b)<<7);}
-
-/* Set exponent continuation [does not apply bias] */
-/* This assumes range has been checked and exponent previously 0; */
-/* type of exponent must be unsigned */
-#define decimal64SetExpCon(d, e) { \
- (d)->bytes[0]|=(uByte)((e)>>6); \
- (d)->bytes[1]|=(uByte)(((e)&0x3F)<<2);}
-
-/* ------------------------------------------------------------------ */
-/* decimal64Show -- display a decimal64 in hexadecimal [debug aid] */
-/* d64 -- the number to show */
-/* ------------------------------------------------------------------ */
-/* Also shows sign/cob/expconfields extracted */
-void decimal64Show(const decimal64 *d64) {
- char buf[DECIMAL64_Bytes*2+1];
- Int i, j=0;
-
- if (DECLITEND) {
- for (i=0; ibytes[7-i]);
- }
- printf(" D64> %s [S:%d Cb:%02x Ec:%02x] LittleEndian\n", buf,
- d64->bytes[7]>>7, (d64->bytes[7]>>2)&0x1f,
- ((d64->bytes[7]&0x3)<<6)| (d64->bytes[6]>>2));
- }
- else { /* big-endian */
- for (i=0; ibytes[i]);
- }
- printf(" D64> %s [S:%d Cb:%02x Ec:%02x] BigEndian\n", buf,
- decimal64Sign(d64), decimal64Comb(d64), decimal64ExpCon(d64));
- }
- } /* decimal64Show */
-#endif
-
-/* ================================================================== */
-/* Shared utility routines and tables */
-/* ================================================================== */
-/* define and include the conversion tables to use for shared code */
-#if DECDPUN==3
- #define DEC_DPD2BIN 1
-#else
- #define DEC_DPD2BCD 1
-#endif
-#include "decDPD.h" /* lookup tables */
-
-/* The maximum number of decNumberUnits needed for a working copy of */
-/* the units array is the ceiling of digits/DECDPUN, where digits is */
-/* the maximum number of digits in any of the formats for which this */
-/* is used. decimal128.h must not be included in this module, so, as */
-/* a very special case, that number is defined as a literal here. */
-#define DECMAX754 34
-#define DECMAXUNITS ((DECMAX754+DECDPUN-1)/DECDPUN)
-
-/* ------------------------------------------------------------------ */
-/* Combination field lookup tables (uInts to save measurable work) */
-/* */
-/* COMBEXP - 2-bit most-significant-bits of exponent */
-/* [11 if an Infinity or NaN] */
-/* COMBMSD - 4-bit most-significant-digit */
-/* [0=Infinity, 1=NaN if COMBEXP=11] */
-/* */
-/* Both are indexed by the 5-bit combination field (0-31) */
-/* ------------------------------------------------------------------ */
-const uInt COMBEXP[32]={0, 0, 0, 0, 0, 0, 0, 0,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 2, 2, 2, 2, 2, 2, 2, 2,
- 0, 0, 1, 1, 2, 2, 3, 3};
-const uInt COMBMSD[32]={0, 1, 2, 3, 4, 5, 6, 7,
- 0, 1, 2, 3, 4, 5, 6, 7,
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 9, 8, 9, 8, 9, 0, 1};
-
-/* ------------------------------------------------------------------ */
-/* decDigitsToDPD -- pack coefficient into DPD form */
-/* */
-/* dn is the source number (assumed valid, max DECMAX754 digits) */
-/* targ is 1, 2, or 4-element uInt array, which the caller must */
-/* have cleared to zeros */
-/* shift is the number of 0 digits to add on the right (normally 0) */
-/* */
-/* The coefficient must be known small enough to fit. The full */
-/* coefficient is copied, including the leading 'odd' digit. This */
-/* digit is retrieved and packed into the combination field by the */
-/* caller. */
-/* */
-/* The target uInts are altered only as necessary to receive the */
-/* digits of the decNumber. When more than one uInt is needed, they */
-/* are filled from left to right (that is, the uInt at offset 0 will */
-/* end up with the least-significant digits). */
-/* */
-/* shift is used for 'fold-down' padding. */
-/* */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-#if DECDPUN<=4
-/* Constant multipliers for divide-by-power-of five using reciprocal */
-/* multiply, after removing powers of 2 by shifting, and final shift */
-/* of 17 [we only need up to **4] */
-static const uInt multies[]={131073, 26215, 5243, 1049, 210};
-/* QUOT10 -- macro to return the quotient of unit u divided by 10**n */
-#define QUOT10(u, n) ((((uInt)(u)>>(n))*multies[n])>>17)
-#endif
-void decDigitsToDPD(const decNumber *dn, uInt *targ, Int shift) {
- Int cut; /* work */
- Int n; /* output bunch counter */
- Int digits=dn->digits; /* digit countdown */
- uInt dpd; /* densely packed decimal value */
- uInt bin; /* binary value 0-999 */
- uInt *uout=targ; /* -> current output uInt */
- uInt uoff=0; /* -> current output offset [from right] */
- const Unit *inu=dn->lsu; /* -> current input unit */
- Unit uar[DECMAXUNITS]; /* working copy of units, iff shifted */
- #if DECDPUN!=3 /* not fast path */
- Unit in; /* current unit */
- #endif
-
- if (shift!=0) { /* shift towards most significant required */
- /* shift the units array to the left by pad digits and copy */
- /* [this code is a special case of decShiftToMost, which could */
- /* be used instead if exposed and the array were copied first] */
- const Unit *source; /* .. */
- Unit *target, *first; /* .. */
- uInt next=0; /* work */
-
- source=dn->lsu+D2U(digits)-1; /* where msu comes from */
- target=uar+D2U(digits)-1+D2U(shift);/* where upper part of first cut goes */
- cut=DECDPUN-MSUDIGITS(shift); /* where to slice */
- if (cut==0) { /* unit-boundary case */
- for (; source>=dn->lsu; source--, target--) *target=*source;
- }
- else {
- first=uar+D2U(digits+shift)-1; /* where msu will end up */
- for (; source>=dn->lsu; source--, target--) {
- /* split the source Unit and accumulate remainder for next */
- #if DECDPUN<=4
- uInt quot=QUOT10(*source, cut);
- uInt rem=*source-quot*DECPOWERS[cut];
- next+=quot;
- #else
- uInt rem=*source%DECPOWERS[cut];
- next+=*source/DECPOWERS[cut];
- #endif
- if (target<=first) *target=(Unit)next; /* write to target iff valid */
- next=rem*DECPOWERS[DECDPUN-cut]; /* save remainder for next Unit */
- }
- } /* shift-move */
- /* propagate remainder to one below and clear the rest */
- for (; target>=uar; target--) {
- *target=(Unit)next;
- next=0;
- }
- digits+=shift; /* add count (shift) of zeros added */
- inu=uar; /* use units in working array */
- }
-
- /* now densely pack the coefficient into DPD declets */
-
- #if DECDPUN!=3 /* not fast path */
- in=*inu; /* current unit */
- cut=0; /* at lowest digit */
- bin=0; /* [keep compiler quiet] */
- #endif
-
- for(n=0; digits>0; n++) { /* each output bunch */
- #if DECDPUN==3 /* fast path, 3-at-a-time */
- bin=*inu; /* 3 digits ready for convert */
- digits-=3; /* [may go negative] */
- inu++; /* may need another */
-
- #else /* must collect digit-by-digit */
- Unit dig; /* current digit */
- Int j; /* digit-in-declet count */
- for (j=0; j<3; j++) {
- #if DECDPUN<=4
- Unit temp=(Unit)((uInt)(in*6554)>>16);
- dig=(Unit)(in-X10(temp));
- in=temp;
- #else
- dig=in%10;
- in=in/10;
- #endif
- if (j==0) bin=dig;
- else if (j==1) bin+=X10(dig);
- else /* j==2 */ bin+=X100(dig);
- digits--;
- if (digits==0) break; /* [also protects *inu below] */
- cut++;
- if (cut==DECDPUN) {inu++; in=*inu; cut=0;}
- }
- #endif
- /* here there are 3 digits in bin, or have used all input digits */
-
- dpd=BIN2DPD[bin];
-
- /* write declet to uInt array */
- *uout|=dpd<>(10-uoff); /* collect top bits */
- } /* n declets */
- return;
- } /* decDigitsToDPD */
-
-/* ------------------------------------------------------------------ */
-/* decDigitsFromDPD -- unpack a format's coefficient */
-/* */
-/* dn is the target number, with 7, 16, or 34-digit space. */
-/* sour is a 1, 2, or 4-element uInt array containing only declets */
-/* declets is the number of (right-aligned) declets in sour to */
-/* be processed. This may be 1 more than the obvious number in */
-/* a format, as any top digit is prefixed to the coefficient */
-/* continuation field. It also may be as small as 1, as the */
-/* caller may pre-process leading zero declets. */
-/* */
-/* When doing the 'extra declet' case care is taken to avoid writing */
-/* extra digits when there are leading zeros, as these could overflow */
-/* the units array when DECDPUN is not 3. */
-/* */
-/* The target uInts are used only as necessary to process declets */
-/* declets into the decNumber. When more than one uInt is needed, */
-/* they are used from left to right (that is, the uInt at offset 0 */
-/* provides the least-significant digits). */
-/* */
-/* dn->digits is set, but not the sign or exponent. */
-/* No error is possible [the redundant 888 codes are allowed]. */
-/* ------------------------------------------------------------------ */
-void decDigitsFromDPD(decNumber *dn, const uInt *sour, Int declets) {
-
- uInt dpd; /* collector for 10 bits */
- Int n; /* counter */
- Unit *uout=dn->lsu; /* -> current output unit */
- Unit *last=uout; /* will be unit containing msd */
- const uInt *uin=sour; /* -> current input uInt */
- uInt uoff=0; /* -> current input offset [from right] */
-
- #if DECDPUN!=3
- uInt bcd; /* BCD result */
- uInt nibble; /* work */
- Unit out=0; /* accumulator */
- Int cut=0; /* power of ten in current unit */
- #endif
- #if DECDPUN>4
- uInt const *pow; /* work */
- #endif
-
- /* Expand the densely-packed integer, right to left */
- for (n=declets-1; n>=0; n--) { /* count down declets of 10 bits */
- dpd=*uin>>uoff;
- uoff+=10;
- if (uoff>32) { /* crossed uInt boundary */
- uin++;
- uoff-=32;
- dpd|=*uin<<(10-uoff); /* get waiting bits */
- }
- dpd&=0x3ff; /* clear uninteresting bits */
-
- #if DECDPUN==3
- if (dpd==0) *uout=0;
- else {
- *uout=DPD2BIN[dpd]; /* convert 10 bits to binary 0-999 */
- last=uout; /* record most significant unit */
- }
- uout++;
- } /* n */
-
- #else /* DECDPUN!=3 */
- if (dpd==0) { /* fastpath [e.g., leading zeros] */
- /* write out three 0 digits (nibbles); out may have digit(s) */
- cut++;
- if (cut==DECDPUN) {*uout=out; if (out) {last=uout; out=0;} uout++; cut=0;}
- if (n==0) break; /* [as below, works even if MSD=0] */
- cut++;
- if (cut==DECDPUN) {*uout=out; if (out) {last=uout; out=0;} uout++; cut=0;}
- cut++;
- if (cut==DECDPUN) {*uout=out; if (out) {last=uout; out=0;} uout++; cut=0;}
- continue;
- }
-
- bcd=DPD2BCD[dpd]; /* convert 10 bits to 12 bits BCD */
-
- /* now accumulate the 3 BCD nibbles into units */
- nibble=bcd & 0x00f;
- if (nibble) out=(Unit)(out+nibble*DECPOWERS[cut]);
- cut++;
- if (cut==DECDPUN) {*uout=out; if (out) {last=uout; out=0;} uout++; cut=0;}
- bcd>>=4;
-
- /* if this is the last declet and the remaining nibbles in bcd */
- /* are 00 then process no more nibbles, because this could be */
- /* the 'odd' MSD declet and writing any more Units would then */
- /* overflow the unit array */
- if (n==0 && !bcd) break;
-
- nibble=bcd & 0x00f;
- if (nibble) out=(Unit)(out+nibble*DECPOWERS[cut]);
- cut++;
- if (cut==DECDPUN) {*uout=out; if (out) {last=uout; out=0;} uout++; cut=0;}
- bcd>>=4;
-
- nibble=bcd & 0x00f;
- if (nibble) out=(Unit)(out+nibble*DECPOWERS[cut]);
- cut++;
- if (cut==DECDPUN) {*uout=out; if (out) {last=uout; out=0;} uout++; cut=0;}
- } /* n */
- if (cut!=0) { /* some more left over */
- *uout=out; /* write out final unit */
- if (out) last=uout; /* and note if non-zero */
- }
- #endif
-
- /* here, last points to the most significant unit with digits; */
- /* inspect it to get the final digits count -- this is essentially */
- /* the same code as decGetDigits in decNumber.c */
- dn->digits=(last-dn->lsu)*DECDPUN+1; /* floor of digits, plus */
- /* must be at least 1 digit */
- #if DECDPUN>1
- if (*last<10) return; /* common odd digit or 0 */
- dn->digits++; /* must be 2 at least */
- #if DECDPUN>2
- if (*last<100) return; /* 10-99 */
- dn->digits++; /* must be 3 at least */
- #if DECDPUN>3
- if (*last<1000) return; /* 100-999 */
- dn->digits++; /* must be 4 at least */
- #if DECDPUN>4
- for (pow=&DECPOWERS[4]; *last>=*pow; pow++) dn->digits++;
- #endif
- #endif
- #endif
- #endif
- return;
- } /*decDigitsFromDPD */
decimal64.c
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal128.c
===================================================================
--- decimal128.c (revision 816)
+++ decimal128.c (nonexistent)
@@ -1,560 +0,0 @@
-/* Decimal 128-bit format module for the decNumber C Library.
- Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
- Contributed by IBM Corporation. Author Mike Cowlishaw.
-
- This file is part of GCC.
-
- GCC is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3, or (at your option) any later
- version.
-
- GCC is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- /* [for memset/memcpy] */
-#include /* [for printf] */
-
-#include "dconfig.h" /* GCC definitions */
-#define DECNUMDIGITS 34 /* make decNumbers with space for 34 */
-#include "decNumber.h" /* base number library */
-#include "decNumberLocal.h" /* decNumber local types, etc. */
-#include "decimal128.h" /* our primary include */
-
-/* Utility routines and tables [in decimal64.c] */
-extern const uInt COMBEXP[32], COMBMSD[32];
-extern const uShort DPD2BIN[1024];
-extern const uShort BIN2DPD[1000]; /* [not used] */
-extern const uByte BIN2CHAR[4001];
-
-extern void decDigitsFromDPD(decNumber *, const uInt *, Int);
-extern void decDigitsToDPD(const decNumber *, uInt *, Int);
-
-#if DECTRACE || DECCHECK
-void decimal128Show(const decimal128 *); /* for debug */
-extern void decNumberShow(const decNumber *); /* .. */
-#endif
-
-/* Useful macro */
-/* Clear a structure (e.g., a decNumber) */
-#define DEC_clear(d) memset(d, 0, sizeof(*d))
-
-/* ------------------------------------------------------------------ */
-/* decimal128FromNumber -- convert decNumber to decimal128 */
-/* */
-/* ds is the target decimal128 */
-/* dn is the source number (assumed valid) */
-/* set is the context, used only for reporting errors */
-/* */
-/* The set argument is used only for status reporting and for the */
-/* rounding mode (used if the coefficient is more than DECIMAL128_Pmax*/
-/* digits or an overflow is detected). If the exponent is out of the */
-/* valid range then Overflow or Underflow will be raised. */
-/* After Underflow a subnormal result is possible. */
-/* */
-/* DEC_Clamped is set if the number has to be 'folded down' to fit, */
-/* by reducing its exponent and multiplying the coefficient by a */
-/* power of ten, or if the exponent on a zero had to be clamped. */
-/* ------------------------------------------------------------------ */
-decimal128 * decimal128FromNumber(decimal128 *d128, const decNumber *dn,
- decContext *set) {
- uInt status=0; /* status accumulator */
- Int ae; /* adjusted exponent */
- decNumber dw; /* work */
- decContext dc; /* .. */
- uInt comb, exp; /* .. */
- uInt uiwork; /* for macros */
- uInt targar[4]={0,0,0,0}; /* target 128-bit */
- #define targhi targar[3] /* name the word with the sign */
- #define targmh targar[2] /* name the words */
- #define targml targar[1] /* .. */
- #define targlo targar[0] /* .. */
-
- /* If the number has too many digits, or the exponent could be */
- /* out of range then reduce the number under the appropriate */
- /* constraints. This could push the number to Infinity or zero, */
- /* so this check and rounding must be done before generating the */
- /* decimal128] */
- ae=dn->exponent+dn->digits-1; /* [0 if special] */
- if (dn->digits>DECIMAL128_Pmax /* too many digits */
- || ae>DECIMAL128_Emax /* likely overflow */
- || aeround; /* use supplied rounding */
- decNumberPlus(&dw, dn, &dc); /* (round and check) */
- /* [this changes -0 to 0, so enforce the sign...] */
- dw.bits|=dn->bits&DECNEG;
- status=dc.status; /* save status */
- dn=&dw; /* use the work number */
- } /* maybe out of range */
-
- if (dn->bits&DECSPECIAL) { /* a special value */
- if (dn->bits&DECINF) targhi=DECIMAL_Inf<<24;
- else { /* sNaN or qNaN */
- if ((*dn->lsu!=0 || dn->digits>1) /* non-zero coefficient */
- && (dn->digitsbits&DECNAN) targhi|=DECIMAL_NaN<<24;
- else targhi|=DECIMAL_sNaN<<24;
- } /* a NaN */
- } /* special */
-
- else { /* is finite */
- if (decNumberIsZero(dn)) { /* is a zero */
- /* set and clamp exponent */
- if (dn->exponent<-DECIMAL128_Bias) {
- exp=0; /* low clamp */
- status|=DEC_Clamped;
- }
- else {
- exp=dn->exponent+DECIMAL128_Bias; /* bias exponent */
- if (exp>DECIMAL128_Ehigh) { /* top clamp */
- exp=DECIMAL128_Ehigh;
- status|=DEC_Clamped;
- }
- }
- comb=(exp>>9) & 0x18; /* msd=0, exp top 2 bits .. */
- }
- else { /* non-zero finite number */
- uInt msd; /* work */
- Int pad=0; /* coefficient pad digits */
-
- /* the dn is known to fit, but it may need to be padded */
- exp=(uInt)(dn->exponent+DECIMAL128_Bias); /* bias exponent */
- if (exp>DECIMAL128_Ehigh) { /* fold-down case */
- pad=exp-DECIMAL128_Ehigh;
- exp=DECIMAL128_Ehigh; /* [to maximum] */
- status|=DEC_Clamped;
- }
-
- /* [fastpath for common case is not a win, here] */
- decDigitsToDPD(dn, targar, pad);
- /* save and clear the top digit */
- msd=targhi>>14;
- targhi&=0x00003fff;
-
- /* create the combination field */
- if (msd>=8) comb=0x18 | ((exp>>11) & 0x06) | (msd & 0x01);
- else comb=((exp>>9) & 0x18) | msd;
- }
- targhi|=comb<<26; /* add combination field .. */
- targhi|=(exp&0xfff)<<14; /* .. and exponent continuation */
- } /* finite */
-
- if (dn->bits&DECNEG) targhi|=0x80000000; /* add sign bit */
-
- /* now write to storage; this is endian */
- if (DECLITEND) {
- /* lo -> hi */
- UBFROMUI(d128->bytes, targlo);
- UBFROMUI(d128->bytes+4, targml);
- UBFROMUI(d128->bytes+8, targmh);
- UBFROMUI(d128->bytes+12, targhi);
- }
- else {
- /* hi -> lo */
- UBFROMUI(d128->bytes, targhi);
- UBFROMUI(d128->bytes+4, targmh);
- UBFROMUI(d128->bytes+8, targml);
- UBFROMUI(d128->bytes+12, targlo);
- }
-
- if (status!=0) decContextSetStatus(set, status); /* pass on status */
- /* decimal128Show(d128); */
- return d128;
- } /* decimal128FromNumber */
-
-/* ------------------------------------------------------------------ */
-/* decimal128ToNumber -- convert decimal128 to decNumber */
-/* d128 is the source decimal128 */
-/* dn is the target number, with appropriate space */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-decNumber * decimal128ToNumber(const decimal128 *d128, decNumber *dn) {
- uInt msd; /* coefficient MSD */
- uInt exp; /* exponent top two bits */
- uInt comb; /* combination field */
- Int need; /* work */
- uInt uiwork; /* for macros */
- uInt sourar[4]; /* source 128-bit */
- #define sourhi sourar[3] /* name the word with the sign */
- #define sourmh sourar[2] /* and the mid-high word */
- #define sourml sourar[1] /* and the mod-low word */
- #define sourlo sourar[0] /* and the lowest word */
-
- /* load source from storage; this is endian */
- if (DECLITEND) {
- sourlo=UBTOUI(d128->bytes ); /* directly load the low int */
- sourml=UBTOUI(d128->bytes+4 ); /* then the mid-low */
- sourmh=UBTOUI(d128->bytes+8 ); /* then the mid-high */
- sourhi=UBTOUI(d128->bytes+12); /* then the high int */
- }
- else {
- sourhi=UBTOUI(d128->bytes ); /* directly load the high int */
- sourmh=UBTOUI(d128->bytes+4 ); /* then the mid-high */
- sourml=UBTOUI(d128->bytes+8 ); /* then the mid-low */
- sourlo=UBTOUI(d128->bytes+12); /* then the low int */
- }
-
- comb=(sourhi>>26)&0x1f; /* combination field */
-
- decNumberZero(dn); /* clean number */
- if (sourhi&0x80000000) dn->bits=DECNEG; /* set sign if negative */
-
- msd=COMBMSD[comb]; /* decode the combination field */
- exp=COMBEXP[comb]; /* .. */
-
- if (exp==3) { /* is a special */
- if (msd==0) {
- dn->bits|=DECINF;
- return dn; /* no coefficient needed */
- }
- else if (sourhi&0x02000000) dn->bits|=DECSNAN;
- else dn->bits|=DECNAN;
- msd=0; /* no top digit */
- }
- else { /* is a finite number */
- dn->exponent=(exp<<12)+((sourhi>>14)&0xfff)-DECIMAL128_Bias; /* unbiased */
- }
-
- /* get the coefficient */
- sourhi&=0x00003fff; /* clean coefficient continuation */
- if (msd) { /* non-zero msd */
- sourhi|=msd<<14; /* prefix to coefficient */
- need=12; /* process 12 declets */
- }
- else { /* msd=0 */
- if (sourhi) need=11; /* declets to process */
- else if (sourmh) need=10;
- else if (sourml) need=7;
- else if (sourlo) need=4;
- else return dn; /* easy: coefficient is 0 */
- } /*msd=0 */
-
- decDigitsFromDPD(dn, sourar, need); /* process declets */
- /* decNumberShow(dn); */
- return dn;
- } /* decimal128ToNumber */
-
-/* ------------------------------------------------------------------ */
-/* to-scientific-string -- conversion to numeric string */
-/* to-engineering-string -- conversion to numeric string */
-/* */
-/* decimal128ToString(d128, string); */
-/* decimal128ToEngString(d128, string); */
-/* */
-/* d128 is the decimal128 format number to convert */
-/* string is the string where the result will be laid out */
-/* */
-/* string must be at least 24 characters */
-/* */
-/* No error is possible, and no status can be set. */
-/* ------------------------------------------------------------------ */
-char * decimal128ToEngString(const decimal128 *d128, char *string){
- decNumber dn; /* work */
- decimal128ToNumber(d128, &dn);
- decNumberToEngString(&dn, string);
- return string;
- } /* decimal128ToEngString */
-
-char * decimal128ToString(const decimal128 *d128, char *string){
- uInt msd; /* coefficient MSD */
- Int exp; /* exponent top two bits or full */
- uInt comb; /* combination field */
- char *cstart; /* coefficient start */
- char *c; /* output pointer in string */
- const uByte *u; /* work */
- char *s, *t; /* .. (source, target) */
- Int dpd; /* .. */
- Int pre, e; /* .. */
- uInt uiwork; /* for macros */
-
- uInt sourar[4]; /* source 128-bit */
- #define sourhi sourar[3] /* name the word with the sign */
- #define sourmh sourar[2] /* and the mid-high word */
- #define sourml sourar[1] /* and the mod-low word */
- #define sourlo sourar[0] /* and the lowest word */
-
- /* load source from storage; this is endian */
- if (DECLITEND) {
- sourlo=UBTOUI(d128->bytes ); /* directly load the low int */
- sourml=UBTOUI(d128->bytes+4 ); /* then the mid-low */
- sourmh=UBTOUI(d128->bytes+8 ); /* then the mid-high */
- sourhi=UBTOUI(d128->bytes+12); /* then the high int */
- }
- else {
- sourhi=UBTOUI(d128->bytes ); /* directly load the high int */
- sourmh=UBTOUI(d128->bytes+4 ); /* then the mid-high */
- sourml=UBTOUI(d128->bytes+8 ); /* then the mid-low */
- sourlo=UBTOUI(d128->bytes+12); /* then the low int */
- }
-
- c=string; /* where result will go */
- if (((Int)sourhi)<0) *c++='-'; /* handle sign */
-
- comb=(sourhi>>26)&0x1f; /* combination field */
- msd=COMBMSD[comb]; /* decode the combination field */
- exp=COMBEXP[comb]; /* .. */
-
- if (exp==3) {
- if (msd==0) { /* infinity */
- strcpy(c, "Inf");
- strcpy(c+3, "inity");
- return string; /* easy */
- }
- if (sourhi&0x02000000) *c++='s'; /* sNaN */
- strcpy(c, "NaN"); /* complete word */
- c+=3; /* step past */
- if (sourlo==0 && sourml==0 && sourmh==0
- && (sourhi&0x0003ffff)==0) return string; /* zero payload */
- /* otherwise drop through to add integer; set correct exp */
- exp=0; msd=0; /* setup for following code */
- }
- else exp=(exp<<12)+((sourhi>>14)&0xfff)-DECIMAL128_Bias; /* unbiased */
-
- /* convert 34 digits of significand to characters */
- cstart=c; /* save start of coefficient */
- if (msd) *c++='0'+(char)msd; /* non-zero most significant digit */
-
- /* Now decode the declets. After extracting each one, it is */
- /* decoded to binary and then to a 4-char sequence by table lookup; */
- /* the 4-chars are a 1-char length (significant digits, except 000 */
- /* has length 0). This allows us to left-align the first declet */
- /* with non-zero content, then remaining ones are full 3-char */
- /* length. We use fixed-length memcpys because variable-length */
- /* causes a subroutine call in GCC. (These are length 4 for speed */
- /* and are safe because the array has an extra terminator byte.) */
- #define dpd2char u=&BIN2CHAR[DPD2BIN[dpd]*4]; \
- if (c!=cstart) {memcpy(c, u+1, 4); c+=3;} \
- else if (*u) {memcpy(c, u+4-*u, 4); c+=*u;}
- dpd=(sourhi>>4)&0x3ff; /* declet 1 */
- dpd2char;
- dpd=((sourhi&0xf)<<6) | (sourmh>>26); /* declet 2 */
- dpd2char;
- dpd=(sourmh>>16)&0x3ff; /* declet 3 */
- dpd2char;
- dpd=(sourmh>>6)&0x3ff; /* declet 4 */
- dpd2char;
- dpd=((sourmh&0x3f)<<4) | (sourml>>28); /* declet 5 */
- dpd2char;
- dpd=(sourml>>18)&0x3ff; /* declet 6 */
- dpd2char;
- dpd=(sourml>>8)&0x3ff; /* declet 7 */
- dpd2char;
- dpd=((sourml&0xff)<<2) | (sourlo>>30); /* declet 8 */
- dpd2char;
- dpd=(sourlo>>20)&0x3ff; /* declet 9 */
- dpd2char;
- dpd=(sourlo>>10)&0x3ff; /* declet 10 */
- dpd2char;
- dpd=(sourlo)&0x3ff; /* declet 11 */
- dpd2char;
-
- if (c==cstart) *c++='0'; /* all zeros -- make 0 */
-
- if (exp==0) { /* integer or NaN case -- easy */
- *c='\0'; /* terminate */
- return string;
- }
-
- /* non-0 exponent */
- e=0; /* assume no E */
- pre=c-cstart+exp;
- /* [here, pre-exp is the digits count (==1 for zero)] */
- if (exp>0 || pre<-5) { /* need exponential form */
- e=pre-1; /* calculate E value */
- pre=1; /* assume one digit before '.' */
- } /* exponential form */
-
- /* modify the coefficient, adding 0s, '.', and E+nn as needed */
- s=c-1; /* source (LSD) */
- if (pre>0) { /* ddd.ddd (plain), perhaps with E */
- char *dotat=cstart+pre;
- if (dotat=dotat; s--, t--) *t=*s; /* open the gap; leave t at gap */
- *t='.'; /* insert the dot */
- c++; /* length increased by one */
- }
-
- /* finally add the E-part, if needed; it will never be 0, and has */
- /* a maximum length of 4 digits */
- if (e!=0) {
- *c++='E'; /* starts with E */
- *c++='+'; /* assume positive */
- if (e<0) {
- *(c-1)='-'; /* oops, need '-' */
- e=-e; /* uInt, please */
- }
- if (e<1000) { /* 3 (or fewer) digits case */
- u=&BIN2CHAR[e*4]; /* -> length byte */
- memcpy(c, u+4-*u, 4); /* copy fixed 4 characters [is safe] */
- c+=*u; /* bump pointer appropriately */
- }
- else { /* 4-digits */
- Int thou=((e>>3)*1049)>>17; /* e/1000 */
- Int rem=e-(1000*thou); /* e%1000 */
- *c++='0'+(char)thou;
- u=&BIN2CHAR[rem*4]; /* -> length byte */
- memcpy(c, u+1, 4); /* copy fixed 3+1 characters [is safe] */
- c+=3; /* bump pointer, always 3 digits */
- }
- }
- *c='\0'; /* add terminator */
- /*printf("res %s\n", string); */
- return string;
- } /* pre>0 */
-
- /* -5<=pre<=0: here for plain 0.ddd or 0.000ddd forms (can never have E) */
- t=c+1-pre;
- *(t+1)='\0'; /* can add terminator now */
- for (; s>=cstart; s--, t--) *t=*s; /* shift whole coefficient right */
- c=cstart;
- *c++='0'; /* always starts with 0. */
- *c++='.';
- for (; pre<0; pre++) *c++='0'; /* add any 0's after '.' */
- /*printf("res %s\n", string); */
- return string;
- } /* decimal128ToString */
-
-/* ------------------------------------------------------------------ */
-/* to-number -- conversion from numeric string */
-/* */
-/* decimal128FromString(result, string, set); */
-/* */
-/* result is the decimal128 format number which gets the result of */
-/* the conversion */
-/* *string is the character string which should contain a valid */
-/* number (which may be a special value) */
-/* set is the context */
-/* */
-/* The context is supplied to this routine is used for error handling */
-/* (setting of status and traps) and for the rounding mode, only. */
-/* If an error occurs, the result will be a valid decimal128 NaN. */
-/* ------------------------------------------------------------------ */
-decimal128 * decimal128FromString(decimal128 *result, const char *string,
- decContext *set) {
- decContext dc; /* work */
- decNumber dn; /* .. */
-
- decContextDefault(&dc, DEC_INIT_DECIMAL128); /* no traps, please */
- dc.round=set->round; /* use supplied rounding */
-
- decNumberFromString(&dn, string, &dc); /* will round if needed */
- decimal128FromNumber(result, &dn, &dc);
- if (dc.status!=0) { /* something happened */
- decContextSetStatus(set, dc.status); /* .. pass it on */
- }
- return result;
- } /* decimal128FromString */
-
-/* ------------------------------------------------------------------ */
-/* decimal128IsCanonical -- test whether encoding is canonical */
-/* d128 is the source decimal128 */
-/* returns 1 if the encoding of d128 is canonical, 0 otherwise */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-uInt decimal128IsCanonical(const decimal128 *d128) {
- decNumber dn; /* work */
- decimal128 canon; /* .. */
- decContext dc; /* .. */
- decContextDefault(&dc, DEC_INIT_DECIMAL128);
- decimal128ToNumber(d128, &dn);
- decimal128FromNumber(&canon, &dn, &dc);/* canon will now be canonical */
- return memcmp(d128, &canon, DECIMAL128_Bytes)==0;
- } /* decimal128IsCanonical */
-
-/* ------------------------------------------------------------------ */
-/* decimal128Canonical -- copy an encoding, ensuring it is canonical */
-/* d128 is the source decimal128 */
-/* result is the target (may be the same decimal128) */
-/* returns result */
-/* No error is possible. */
-/* ------------------------------------------------------------------ */
-decimal128 * decimal128Canonical(decimal128 *result, const decimal128 *d128) {
- decNumber dn; /* work */
- decContext dc; /* .. */
- decContextDefault(&dc, DEC_INIT_DECIMAL128);
- decimal128ToNumber(d128, &dn);
- decimal128FromNumber(result, &dn, &dc);/* result will now be canonical */
- return result;
- } /* decimal128Canonical */
-
-#if DECTRACE || DECCHECK
-/* Macros for accessing decimal128 fields. These assume the argument
- is a reference (pointer) to the decimal128 structure, and the
- decimal128 is in network byte order (big-endian) */
-/* Get sign */
-#define decimal128Sign(d) ((unsigned)(d)->bytes[0]>>7)
-
-/* Get combination field */
-#define decimal128Comb(d) (((d)->bytes[0] & 0x7c)>>2)
-
-/* Get exponent continuation [does not remove bias] */
-#define decimal128ExpCon(d) ((((d)->bytes[0] & 0x03)<<10) \
- | ((unsigned)(d)->bytes[1]<<2) \
- | ((unsigned)(d)->bytes[2]>>6))
-
-/* Set sign [this assumes sign previously 0] */
-#define decimal128SetSign(d, b) { \
- (d)->bytes[0]|=((unsigned)(b)<<7);}
-
-/* Set exponent continuation [does not apply bias] */
-/* This assumes range has been checked and exponent previously 0; */
-/* type of exponent must be unsigned */
-#define decimal128SetExpCon(d, e) { \
- (d)->bytes[0]|=(uByte)((e)>>10); \
- (d)->bytes[1] =(uByte)(((e)&0x3fc)>>2); \
- (d)->bytes[2]|=(uByte)(((e)&0x03)<<6);}
-
-/* ------------------------------------------------------------------ */
-/* decimal128Show -- display a decimal128 in hexadecimal [debug aid] */
-/* d128 -- the number to show */
-/* ------------------------------------------------------------------ */
-/* Also shows sign/cob/expconfields extracted */
-void decimal128Show(const decimal128 *d128) {
- char buf[DECIMAL128_Bytes*2+1];
- Int i, j=0;
-
- if (DECLITEND) {
- for (i=0; ibytes[15-i]);
- }
- printf(" D128> %s [S:%d Cb:%02x Ec:%02x] LittleEndian\n", buf,
- d128->bytes[15]>>7, (d128->bytes[15]>>2)&0x1f,
- ((d128->bytes[15]&0x3)<<10)|(d128->bytes[14]<<2)|
- (d128->bytes[13]>>6));
- }
- else {
- for (i=0; ibytes[i]);
- }
- printf(" D128> %s [S:%d Cb:%02x Ec:%02x] BigEndian\n", buf,
- decimal128Sign(d128), decimal128Comb(d128),
- decimal128ExpCon(d128));
- }
- } /* decimal128Show */
-#endif
decimal128.c
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal128Local.h
===================================================================
--- decimal128Local.h (revision 816)
+++ decimal128Local.h (nonexistent)
@@ -1,42 +0,0 @@
-/* Local definitions for use with the decNumber C Library.
- Copyright (C) 2007, 2009 Free Software Foundation, Inc.
-
- This file is part of GCC.
-
- GCC is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3, or (at your option) any later
- version.
-
- GCC is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-
decimal128Local.h
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property
Index: decimal64.h
===================================================================
--- decimal64.h (revision 816)
+++ decimal64.h (nonexistent)
@@ -1,104 +0,0 @@
-/* Decimal 64-bit format module header for the decNumber C Library.
- Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
- Contributed by IBM Corporation. Author Mike Cowlishaw.
-
- This file is part of GCC.
-
- GCC is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 3, or (at your option) any later
- version.
-
- GCC is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-=16 for safe use
- #endif
- #endif
-
-
- #ifndef DECNUMDIGITS
- #define DECNUMDIGITS DECIMAL64_Pmax /* size if not already defined*/
- #endif
- #ifndef DECNUMBER
- #include "decNumber.h" /* context and number library */
- #endif
-
- /* Decimal 64-bit type, accessible by bytes */
- typedef struct {
- uint8_t bytes[DECIMAL64_Bytes]; /* decimal64: 1, 5, 8, 50 bits*/
- } decimal64;
-
- /* special values [top byte excluding sign bit; last two bits are */
- /* don't-care for Infinity on input, last bit don't-care for NaN] */
- #if !defined(DECIMAL_NaN)
- #define DECIMAL_NaN 0x7c /* 0 11111 00 NaN */
- #define DECIMAL_sNaN 0x7e /* 0 11111 10 sNaN */
- #define DECIMAL_Inf 0x78 /* 0 11110 00 Infinity */
- #endif
-
- /* ---------------------------------------------------------------- */
- /* Routines */
- /* ---------------------------------------------------------------- */
-
-#include "decimal64Symbols.h"
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /* String conversions */
- decimal64 * decimal64FromString(decimal64 *, const char *, decContext *);
- char * decimal64ToString(const decimal64 *, char *);
- char * decimal64ToEngString(const decimal64 *, char *);
-
- /* decNumber conversions */
- decimal64 * decimal64FromNumber(decimal64 *, const decNumber *,
- decContext *);
- decNumber * decimal64ToNumber(const decimal64 *, decNumber *);
-
- /* Format-dependent utilities */
- uint32_t decimal64IsCanonical(const decimal64 *);
- decimal64 * decimal64Canonical(decimal64 *, const decimal64 *);
-
- #ifdef __cplusplus
- }
- #endif
-
-#endif
decimal64.h
Property changes :
Deleted: svn:eol-style
## -1 +0,0 ##
-native
\ No newline at end of property
Deleted: svn:keywords
## -1 +0,0 ##
-Id
\ No newline at end of property