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Carla/data/windows/unzipfx-carla-control/crc32.c

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  1. /*

  2.   Copyright (c) 1990-2007 Info-ZIP.  All rights reserved.

  3. 

  4.   See the accompanying file LICENSE, version 2005-Feb-10 or later

  5.   (the contents of which are also included in zip.h) for terms of use.

  6.   If, for some reason, all these files are missing, the Info-ZIP license

  7.   also may be found at:  ftp://ftp.info-zip.org/pub/infozip/license.html

  8. */

  9. /* crc32.c -- compute the CRC-32 of a data stream

  10.  * Copyright (C) 1995 Mark Adler

  11.  * For conditions of distribution and use, see copyright notice in zlib.h

  12.  *

  13.  * Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster

  14.  * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing

  15.  * tables for updating the shift register in one step with three exclusive-ors

  16.  * instead of four steps with four exclusive-ors.  This results about a factor

  17.  * of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.

  18.  */

  19. 

  20. /* $Id: crc32.c,v 2.0 2007/01/07 05:20:36 spc Exp $ */

  21. 

  22. #define __CRC32_C       /* identifies this source module */

  23. 

  24. #include "zip.h"

  25. 

  26. #if (!defined(USE_ZLIB) || defined(USE_OWN_CRCTAB))

  27. 

  28. #ifndef ZCONST

  29. #  define ZCONST const

  30. #endif

  31. 

  32. #include "crc32.h"

  33. 

  34. /* When only the table of precomputed CRC values is needed, only the basic

  35.    system-independent table containing 256 entries is created; any support

  36.    for "unfolding" optimization is disabled.

  37.  */

  38. #if (defined(USE_ZLIB) || defined(CRC_TABLE_ONLY))

  39. #  ifdef IZ_CRCOPTIM_UNFOLDTBL

  40. #    undef IZ_CRCOPTIM_UNFOLDTBL

  41. #  endif

  42. #endif /* (USE_ZLIB || CRC_TABLE_ONLY) */

  43. 

  44. #if defined(IZ_CRCOPTIM_UNFOLDTBL)

  45. #  define CRC_TBLS  4

  46. #else

  47. #  define CRC_TBLS  1

  48. #endif

  49. 

  50. 

  51. /*

  52.   Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:

  53.   x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.

  54. 

  55.   Polynomials over GF(2) are represented in binary, one bit per coefficient,

  56.   with the lowest powers in the most significant bit.  Then adding polynomials

  57.   is just exclusive-or, and multiplying a polynomial by x is a right shift by

  58.   one.  If we call the above polynomial p, and represent a byte as the

  59.   polynomial q, also with the lowest power in the most significant bit (so the

  60.   byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p,

  61.   where a mod b means the remainder after dividing a by b.

  62. 

  63.   This calculation is done using the shift-register method of multiplying and

  64.   taking the remainder.  The register is initialized to zero, and for each

  65.   incoming bit, x^32 is added mod p to the register if the bit is a one (where

  66.   x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by

  67.   x (which is shifting right by one and adding x^32 mod p if the bit shifted

  68.   out is a one).  We start with the highest power (least significant bit) of

  69.   q and repeat for all eight bits of q.

  70. 

  71.   The first (or only) table is simply the CRC of all possible eight bit values.

  72.   This is all the information needed to generate CRC's on data a byte-at-a-time

  73.   for all combinations of CRC register values and incoming bytes.

  74.   The remaining 3 tables (if IZ_CRCOPTIM_UNFOLDTBL is enabled) allow for

  75.   word-at-a-time CRC calculation, where a word is four bytes.

  76. */

  77. 

  78. #ifdef DYNAMIC_CRC_TABLE

  79. 

  80. /* =========================================================================

  81.  * Make the crc table. This function is needed only if you want to compute

  82.  * the table dynamically.

  83.  */

  84. 

  85. local void make_crc_table OF((void));

  86. 

  87. #if (defined(DYNALLOC_CRCTAB) && defined(REENTRANT))

  88.    error: Dynamic allocation of CRC table not safe with reentrant code.

  89. #endif /* DYNALLOC_CRCTAB && REENTRANT */

  90. 

  91. #ifdef DYNALLOC_CRCTAB

  92.    local ulg near *crc_table = NULL;

  93. # if 0          /* not used, since sizeof("near *") <= sizeof(int) */

  94.    /* Use this section when access to a "local int" is faster than access to

  95.       a "local pointer" (e.g.: i86 16bit code with far pointers). */

  96.    local int crc_table_empty = 1;

  97. #  define CRC_TABLE_IS_EMPTY    (crc_table_empty != 0)

  98. #  define MARK_CRCTAB_FILLED    crc_table_empty = 0

  99. #  define MARK_CRCTAB_EMPTY     crc_table_empty = 1

  100. # else

  101.    /* Use this section on systems where the size of pointers and ints is

  102.       equal (e.g.: all 32bit systems). */

  103. #  define CRC_TABLE_IS_EMPTY    (crc_table == NULL)

  104. #  define MARK_CRCTAB_FILLED    crc_table = crctab_p

  105. #  define MARK_CRCTAB_EMPTY     crc_table = NULL

  106. # endif

  107. #else /* !DYNALLOC_CRCTAB */

  108.    local ulg near crc_table[CRC_TBLS*256];

  109.    local int crc_table_empty = 1;

  110. #  define CRC_TABLE_IS_EMPTY    (crc_table_empty != 0)

  111. #  define MARK_CRCTAB_FILLED    crc_table_empty = 0

  112. #endif /* ?DYNALLOC_CRCTAB */

  113. 

  114. 

  115. local void make_crc_table()

  116. {

  117.   ulg c;                /* crc shift register */

  118.   int n;                /* counter for all possible eight bit values */

  119.   int k;                /* byte being shifted into crc apparatus */

  120. #ifdef DYNALLOC_CRCTAB

  121.   ulg near *crctab_p;   /* temporary pointer to allocated crc_table area */

  122. #else /* !DYNALLOC_CRCTAB */

  123. # define crctab_p crc_table

  124. #endif /* DYNALLOC_CRCTAB */

  125. 

  126. #ifdef COMPUTE_XOR_PATTERN

  127.   /* This piece of code has been left here to explain how the XOR pattern

  128.    * used in the creation of the crc_table values can be recomputed.

  129.    * For production versions of this function, it is more efficient to

  130.    * supply the resultant pattern at compile time.

  131.    */

  132.   ulg xor;              /* polynomial exclusive-or pattern */

  133.   /* terms of polynomial defining this crc (except x^32): */

  134.   static ZCONST uch p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};

  135. 

  136.   /* make exclusive-or pattern from polynomial (0xedb88320L) */

  137.   xor = 0L;

  138.   for (n = 0; n < sizeof(p)/sizeof(uch); n++)

  139.     xor |= 1L << (31 - p[n]);

  140. #else

  141. # define xor 0xedb88320L

  142. #endif

  143. 

  144. #ifdef DYNALLOC_CRCTAB

  145.   crctab_p = (ulg near *) nearmalloc (CRC_TBLS*256*sizeof(ulg));

  146.   if (crctab_p == NULL) {

  147.     ziperr(ZE_MEM, "crc_table allocation");

  148.   }

  149. #endif /* DYNALLOC_CRCTAB */

  150. 

  151.   /* generate a crc for every 8-bit value */

  152.   for (n = 0; n < 256; n++) {

  153.     c = (ulg)n;

  154.     for (k = 8; k; k--)

  155.       c = c & 1 ? xor ^ (c >> 1) : c >> 1;

  156.     crctab_p[n] = REV_BE(c);

  157.   }

  158. 

  159. #ifdef IZ_CRCOPTIM_UNFOLDTBL

  160.   /* generate crc for each value followed by one, two, and three zeros */

  161.   for (n = 0; n < 256; n++) {

  162.       c = crctab_p[n];

  163.       for (k = 1; k < 4; k++) {

  164.           c = CRC32(c, 0, crctab_p);

  165.           crctab_p[k*256+n] = c;

  166.       }

  167.   }

  168. #endif /* IZ_CRCOPTIM_UNFOLDTBL */

  169. 

  170.   MARK_CRCTAB_FILLED;

  171. }

  172. 

  173. #else /* !DYNAMIC_CRC_TABLE */

  174. 

  175. #ifdef DYNALLOC_CRCTAB

  176.    error: Inconsistent flags, DYNALLOC_CRCTAB without DYNAMIC_CRC_TABLE.

  177. #endif

  178. 

  179. /* ========================================================================

  180.  * Table of CRC-32's of all single-byte values (made by make_crc_table)

  181.  */

  182. local ZCONST ulg near crc_table[CRC_TBLS*256] = {

  183. # ifdef IZ_CRC_BE_OPTIMIZ

  184.     0x00000000L, 0x96300777L, 0x2c610eeeL, 0xba510999L, 0x19c46d07L,

  185.     0x8ff46a70L, 0x35a563e9L, 0xa395649eL, 0x3288db0eL, 0xa4b8dc79L,

  186.     0x1ee9d5e0L, 0x88d9d297L, 0x2b4cb609L, 0xbd7cb17eL, 0x072db8e7L,

  187.     0x911dbf90L, 0x6410b71dL, 0xf220b06aL, 0x4871b9f3L, 0xde41be84L,

  188.     0x7dd4da1aL, 0xebe4dd6dL, 0x51b5d4f4L, 0xc785d383L, 0x56986c13L,

  189.     0xc0a86b64L, 0x7af962fdL, 0xecc9658aL, 0x4f5c0114L, 0xd96c0663L,

  190.     0x633d0ffaL, 0xf50d088dL, 0xc8206e3bL, 0x5e10694cL, 0xe44160d5L,

  191.     0x727167a2L, 0xd1e4033cL, 0x47d4044bL, 0xfd850dd2L, 0x6bb50aa5L,

  192.     0xfaa8b535L, 0x6c98b242L, 0xd6c9bbdbL, 0x40f9bcacL, 0xe36cd832L,

  193.     0x755cdf45L, 0xcf0dd6dcL, 0x593dd1abL, 0xac30d926L, 0x3a00de51L,

  194.     0x8051d7c8L, 0x1661d0bfL, 0xb5f4b421L, 0x23c4b356L, 0x9995bacfL,

  195.     0x0fa5bdb8L, 0x9eb80228L, 0x0888055fL, 0xb2d90cc6L, 0x24e90bb1L,

  196.     0x877c6f2fL, 0x114c6858L, 0xab1d61c1L, 0x3d2d66b6L, 0x9041dc76L,

  197.     0x0671db01L, 0xbc20d298L, 0x2a10d5efL, 0x8985b171L, 0x1fb5b606L,

  198.     0xa5e4bf9fL, 0x33d4b8e8L, 0xa2c90778L, 0x34f9000fL, 0x8ea80996L,

  199.     0x18980ee1L, 0xbb0d6a7fL, 0x2d3d6d08L, 0x976c6491L, 0x015c63e6L,

  200.     0xf4516b6bL, 0x62616c1cL, 0xd8306585L, 0x4e0062f2L, 0xed95066cL,

  201.     0x7ba5011bL, 0xc1f40882L, 0x57c40ff5L, 0xc6d9b065L, 0x50e9b712L,

  202.     0xeab8be8bL, 0x7c88b9fcL, 0xdf1ddd62L, 0x492dda15L, 0xf37cd38cL,

  203.     0x654cd4fbL, 0x5861b24dL, 0xce51b53aL, 0x7400bca3L, 0xe230bbd4L,

  204.     0x41a5df4aL, 0xd795d83dL, 0x6dc4d1a4L, 0xfbf4d6d3L, 0x6ae96943L,

  205.     0xfcd96e34L, 0x468867adL, 0xd0b860daL, 0x732d0444L, 0xe51d0333L,

  206.     0x5f4c0aaaL, 0xc97c0dddL, 0x3c710550L, 0xaa410227L, 0x10100bbeL,

  207.     0x86200cc9L, 0x25b56857L, 0xb3856f20L, 0x09d466b9L, 0x9fe461ceL,

  208.     0x0ef9de5eL, 0x98c9d929L, 0x2298d0b0L, 0xb4a8d7c7L, 0x173db359L,

  209.     0x810db42eL, 0x3b5cbdb7L, 0xad6cbac0L, 0x2083b8edL, 0xb6b3bf9aL,

  210.     0x0ce2b603L, 0x9ad2b174L, 0x3947d5eaL, 0xaf77d29dL, 0x1526db04L,

  211.     0x8316dc73L, 0x120b63e3L, 0x843b6494L, 0x3e6a6d0dL, 0xa85a6a7aL,

  212.     0x0bcf0ee4L, 0x9dff0993L, 0x27ae000aL, 0xb19e077dL, 0x44930ff0L,

  213.     0xd2a30887L, 0x68f2011eL, 0xfec20669L, 0x5d5762f7L, 0xcb676580L,

  214.     0x71366c19L, 0xe7066b6eL, 0x761bd4feL, 0xe02bd389L, 0x5a7ada10L,

  215.     0xcc4add67L, 0x6fdfb9f9L, 0xf9efbe8eL, 0x43beb717L, 0xd58eb060L,

  216.     0xe8a3d6d6L, 0x7e93d1a1L, 0xc4c2d838L, 0x52f2df4fL, 0xf167bbd1L,

  217.     0x6757bca6L, 0xdd06b53fL, 0x4b36b248L, 0xda2b0dd8L, 0x4c1b0aafL,

  218.     0xf64a0336L, 0x607a0441L, 0xc3ef60dfL, 0x55df67a8L, 0xef8e6e31L,

  219.     0x79be6946L, 0x8cb361cbL, 0x1a8366bcL, 0xa0d26f25L, 0x36e26852L,

  220.     0x95770cccL, 0x03470bbbL, 0xb9160222L, 0x2f260555L, 0xbe3bbac5L,

  221.     0x280bbdb2L, 0x925ab42bL, 0x046ab35cL, 0xa7ffd7c2L, 0x31cfd0b5L,

  222.     0x8b9ed92cL, 0x1daede5bL, 0xb0c2649bL, 0x26f263ecL, 0x9ca36a75L,

  223.     0x0a936d02L, 0xa906099cL, 0x3f360eebL, 0x85670772L, 0x13570005L,

  224.     0x824abf95L, 0x147ab8e2L, 0xae2bb17bL, 0x381bb60cL, 0x9b8ed292L,

  225.     0x0dbed5e5L, 0xb7efdc7cL, 0x21dfdb0bL, 0xd4d2d386L, 0x42e2d4f1L,

  226.     0xf8b3dd68L, 0x6e83da1fL, 0xcd16be81L, 0x5b26b9f6L, 0xe177b06fL,

  227.     0x7747b718L, 0xe65a0888L, 0x706a0fffL, 0xca3b0666L, 0x5c0b0111L,

  228.     0xff9e658fL, 0x69ae62f8L, 0xd3ff6b61L, 0x45cf6c16L, 0x78e20aa0L,

  229.     0xeed20dd7L, 0x5483044eL, 0xc2b30339L, 0x612667a7L, 0xf71660d0L,

  230.     0x4d476949L, 0xdb776e3eL, 0x4a6ad1aeL, 0xdc5ad6d9L, 0x660bdf40L,

  231.     0xf03bd837L, 0x53aebca9L, 0xc59ebbdeL, 0x7fcfb247L, 0xe9ffb530L,

  232.     0x1cf2bdbdL, 0x8ac2bacaL, 0x3093b353L, 0xa6a3b424L, 0x0536d0baL,

  233.     0x9306d7cdL, 0x2957de54L, 0xbf67d923L, 0x2e7a66b3L, 0xb84a61c4L,

  234.     0x021b685dL, 0x942b6f2aL, 0x37be0bb4L, 0xa18e0cc3L, 0x1bdf055aL,

  235.     0x8def022dL

  236. #  ifdef IZ_CRCOPTIM_UNFOLDTBL

  237.     ,

  238.     0x00000000L, 0x41311b19L, 0x82623632L, 0xc3532d2bL, 0x04c56c64L,

  239.     0x45f4777dL, 0x86a75a56L, 0xc796414fL, 0x088ad9c8L, 0x49bbc2d1L,

  240.     0x8ae8effaL, 0xcbd9f4e3L, 0x0c4fb5acL, 0x4d7eaeb5L, 0x8e2d839eL,

  241.     0xcf1c9887L, 0x5112c24aL, 0x1023d953L, 0xd370f478L, 0x9241ef61L,

  242.     0x55d7ae2eL, 0x14e6b537L, 0xd7b5981cL, 0x96848305L, 0x59981b82L,

  243.     0x18a9009bL, 0xdbfa2db0L, 0x9acb36a9L, 0x5d5d77e6L, 0x1c6c6cffL,

  244.     0xdf3f41d4L, 0x9e0e5acdL, 0xa2248495L, 0xe3159f8cL, 0x2046b2a7L,

  245.     0x6177a9beL, 0xa6e1e8f1L, 0xe7d0f3e8L, 0x2483dec3L, 0x65b2c5daL,

  246.     0xaaae5d5dL, 0xeb9f4644L, 0x28cc6b6fL, 0x69fd7076L, 0xae6b3139L,

  247.     0xef5a2a20L, 0x2c09070bL, 0x6d381c12L, 0xf33646dfL, 0xb2075dc6L,

  248.     0x715470edL, 0x30656bf4L, 0xf7f32abbL, 0xb6c231a2L, 0x75911c89L,

  249.     0x34a00790L, 0xfbbc9f17L, 0xba8d840eL, 0x79dea925L, 0x38efb23cL,

  250.     0xff79f373L, 0xbe48e86aL, 0x7d1bc541L, 0x3c2ade58L, 0x054f79f0L,

  251.     0x447e62e9L, 0x872d4fc2L, 0xc61c54dbL, 0x018a1594L, 0x40bb0e8dL,

  252.     0x83e823a6L, 0xc2d938bfL, 0x0dc5a038L, 0x4cf4bb21L, 0x8fa7960aL,

  253.     0xce968d13L, 0x0900cc5cL, 0x4831d745L, 0x8b62fa6eL, 0xca53e177L,

  254.     0x545dbbbaL, 0x156ca0a3L, 0xd63f8d88L, 0x970e9691L, 0x5098d7deL,

  255.     0x11a9ccc7L, 0xd2fae1ecL, 0x93cbfaf5L, 0x5cd76272L, 0x1de6796bL,

  256.     0xdeb55440L, 0x9f844f59L, 0x58120e16L, 0x1923150fL, 0xda703824L,

  257.     0x9b41233dL, 0xa76bfd65L, 0xe65ae67cL, 0x2509cb57L, 0x6438d04eL,

  258.     0xa3ae9101L, 0xe29f8a18L, 0x21cca733L, 0x60fdbc2aL, 0xafe124adL,

  259.     0xeed03fb4L, 0x2d83129fL, 0x6cb20986L, 0xab2448c9L, 0xea1553d0L,

  260.     0x29467efbL, 0x687765e2L, 0xf6793f2fL, 0xb7482436L, 0x741b091dL,

  261.     0x352a1204L, 0xf2bc534bL, 0xb38d4852L, 0x70de6579L, 0x31ef7e60L,

  262.     0xfef3e6e7L, 0xbfc2fdfeL, 0x7c91d0d5L, 0x3da0cbccL, 0xfa368a83L,

  263.     0xbb07919aL, 0x7854bcb1L, 0x3965a7a8L, 0x4b98833bL, 0x0aa99822L,

  264.     0xc9fab509L, 0x88cbae10L, 0x4f5def5fL, 0x0e6cf446L, 0xcd3fd96dL,

  265.     0x8c0ec274L, 0x43125af3L, 0x022341eaL, 0xc1706cc1L, 0x804177d8L,

  266.     0x47d73697L, 0x06e62d8eL, 0xc5b500a5L, 0x84841bbcL, 0x1a8a4171L,

  267.     0x5bbb5a68L, 0x98e87743L, 0xd9d96c5aL, 0x1e4f2d15L, 0x5f7e360cL,

  268.     0x9c2d1b27L, 0xdd1c003eL, 0x120098b9L, 0x533183a0L, 0x9062ae8bL,

  269.     0xd153b592L, 0x16c5f4ddL, 0x57f4efc4L, 0x94a7c2efL, 0xd596d9f6L,

  270.     0xe9bc07aeL, 0xa88d1cb7L, 0x6bde319cL, 0x2aef2a85L, 0xed796bcaL,

  271.     0xac4870d3L, 0x6f1b5df8L, 0x2e2a46e1L, 0xe136de66L, 0xa007c57fL,

  272.     0x6354e854L, 0x2265f34dL, 0xe5f3b202L, 0xa4c2a91bL, 0x67918430L,

  273.     0x26a09f29L, 0xb8aec5e4L, 0xf99fdefdL, 0x3accf3d6L, 0x7bfde8cfL,

  274.     0xbc6ba980L, 0xfd5ab299L, 0x3e099fb2L, 0x7f3884abL, 0xb0241c2cL,

  275.     0xf1150735L, 0x32462a1eL, 0x73773107L, 0xb4e17048L, 0xf5d06b51L,

  276.     0x3683467aL, 0x77b25d63L, 0x4ed7facbL, 0x0fe6e1d2L, 0xccb5ccf9L,

  277.     0x8d84d7e0L, 0x4a1296afL, 0x0b238db6L, 0xc870a09dL, 0x8941bb84L,

  278.     0x465d2303L, 0x076c381aL, 0xc43f1531L, 0x850e0e28L, 0x42984f67L,

  279.     0x03a9547eL, 0xc0fa7955L, 0x81cb624cL, 0x1fc53881L, 0x5ef42398L,

  280.     0x9da70eb3L, 0xdc9615aaL, 0x1b0054e5L, 0x5a314ffcL, 0x996262d7L,

  281.     0xd85379ceL, 0x174fe149L, 0x567efa50L, 0x952dd77bL, 0xd41ccc62L,

  282.     0x138a8d2dL, 0x52bb9634L, 0x91e8bb1fL, 0xd0d9a006L, 0xecf37e5eL,

  283.     0xadc26547L, 0x6e91486cL, 0x2fa05375L, 0xe836123aL, 0xa9070923L,

  284.     0x6a542408L, 0x2b653f11L, 0xe479a796L, 0xa548bc8fL, 0x661b91a4L,

  285.     0x272a8abdL, 0xe0bccbf2L, 0xa18dd0ebL, 0x62defdc0L, 0x23efe6d9L,

  286.     0xbde1bc14L, 0xfcd0a70dL, 0x3f838a26L, 0x7eb2913fL, 0xb924d070L,

  287.     0xf815cb69L, 0x3b46e642L, 0x7a77fd5bL, 0xb56b65dcL, 0xf45a7ec5L,

  288.     0x370953eeL, 0x763848f7L, 0xb1ae09b8L, 0xf09f12a1L, 0x33cc3f8aL,

  289.     0x72fd2493L

  290.     ,

  291.     0x00000000L, 0x376ac201L, 0x6ed48403L, 0x59be4602L, 0xdca80907L,

  292.     0xebc2cb06L, 0xb27c8d04L, 0x85164f05L, 0xb851130eL, 0x8f3bd10fL,

  293.     0xd685970dL, 0xe1ef550cL, 0x64f91a09L, 0x5393d808L, 0x0a2d9e0aL,

  294.     0x3d475c0bL, 0x70a3261cL, 0x47c9e41dL, 0x1e77a21fL, 0x291d601eL,

  295.     0xac0b2f1bL, 0x9b61ed1aL, 0xc2dfab18L, 0xf5b56919L, 0xc8f23512L,

  296.     0xff98f713L, 0xa626b111L, 0x914c7310L, 0x145a3c15L, 0x2330fe14L,

  297.     0x7a8eb816L, 0x4de47a17L, 0xe0464d38L, 0xd72c8f39L, 0x8e92c93bL,

  298.     0xb9f80b3aL, 0x3cee443fL, 0x0b84863eL, 0x523ac03cL, 0x6550023dL,

  299.     0x58175e36L, 0x6f7d9c37L, 0x36c3da35L, 0x01a91834L, 0x84bf5731L,

  300.     0xb3d59530L, 0xea6bd332L, 0xdd011133L, 0x90e56b24L, 0xa78fa925L,

  301.     0xfe31ef27L, 0xc95b2d26L, 0x4c4d6223L, 0x7b27a022L, 0x2299e620L,

  302.     0x15f32421L, 0x28b4782aL, 0x1fdeba2bL, 0x4660fc29L, 0x710a3e28L,

  303.     0xf41c712dL, 0xc376b32cL, 0x9ac8f52eL, 0xada2372fL, 0xc08d9a70L,

  304.     0xf7e75871L, 0xae591e73L, 0x9933dc72L, 0x1c259377L, 0x2b4f5176L,

  305.     0x72f11774L, 0x459bd575L, 0x78dc897eL, 0x4fb64b7fL, 0x16080d7dL,

  306.     0x2162cf7cL, 0xa4748079L, 0x931e4278L, 0xcaa0047aL, 0xfdcac67bL,

  307.     0xb02ebc6cL, 0x87447e6dL, 0xdefa386fL, 0xe990fa6eL, 0x6c86b56bL,

  308.     0x5bec776aL, 0x02523168L, 0x3538f369L, 0x087faf62L, 0x3f156d63L,

  309.     0x66ab2b61L, 0x51c1e960L, 0xd4d7a665L, 0xe3bd6464L, 0xba032266L,

  310.     0x8d69e067L, 0x20cbd748L, 0x17a11549L, 0x4e1f534bL, 0x7975914aL,

  311.     0xfc63de4fL, 0xcb091c4eL, 0x92b75a4cL, 0xa5dd984dL, 0x989ac446L,

  312.     0xaff00647L, 0xf64e4045L, 0xc1248244L, 0x4432cd41L, 0x73580f40L,

  313.     0x2ae64942L, 0x1d8c8b43L, 0x5068f154L, 0x67023355L, 0x3ebc7557L,

  314.     0x09d6b756L, 0x8cc0f853L, 0xbbaa3a52L, 0xe2147c50L, 0xd57ebe51L,

  315.     0xe839e25aL, 0xdf53205bL, 0x86ed6659L, 0xb187a458L, 0x3491eb5dL,

  316.     0x03fb295cL, 0x5a456f5eL, 0x6d2fad5fL, 0x801b35e1L, 0xb771f7e0L,

  317.     0xeecfb1e2L, 0xd9a573e3L, 0x5cb33ce6L, 0x6bd9fee7L, 0x3267b8e5L,

  318.     0x050d7ae4L, 0x384a26efL, 0x0f20e4eeL, 0x569ea2ecL, 0x61f460edL,

  319.     0xe4e22fe8L, 0xd388ede9L, 0x8a36abebL, 0xbd5c69eaL, 0xf0b813fdL,

  320.     0xc7d2d1fcL, 0x9e6c97feL, 0xa90655ffL, 0x2c101afaL, 0x1b7ad8fbL,

  321.     0x42c49ef9L, 0x75ae5cf8L, 0x48e900f3L, 0x7f83c2f2L, 0x263d84f0L,

  322.     0x115746f1L, 0x944109f4L, 0xa32bcbf5L, 0xfa958df7L, 0xcdff4ff6L,

  323.     0x605d78d9L, 0x5737bad8L, 0x0e89fcdaL, 0x39e33edbL, 0xbcf571deL,

  324.     0x8b9fb3dfL, 0xd221f5ddL, 0xe54b37dcL, 0xd80c6bd7L, 0xef66a9d6L,

  325.     0xb6d8efd4L, 0x81b22dd5L, 0x04a462d0L, 0x33cea0d1L, 0x6a70e6d3L,

  326.     0x5d1a24d2L, 0x10fe5ec5L, 0x27949cc4L, 0x7e2adac6L, 0x494018c7L,

  327.     0xcc5657c2L, 0xfb3c95c3L, 0xa282d3c1L, 0x95e811c0L, 0xa8af4dcbL,

  328.     0x9fc58fcaL, 0xc67bc9c8L, 0xf1110bc9L, 0x740744ccL, 0x436d86cdL,

  329.     0x1ad3c0cfL, 0x2db902ceL, 0x4096af91L, 0x77fc6d90L, 0x2e422b92L,

  330.     0x1928e993L, 0x9c3ea696L, 0xab546497L, 0xf2ea2295L, 0xc580e094L,

  331.     0xf8c7bc9fL, 0xcfad7e9eL, 0x9613389cL, 0xa179fa9dL, 0x246fb598L,

  332.     0x13057799L, 0x4abb319bL, 0x7dd1f39aL, 0x3035898dL, 0x075f4b8cL,

  333.     0x5ee10d8eL, 0x698bcf8fL, 0xec9d808aL, 0xdbf7428bL, 0x82490489L,

  334.     0xb523c688L, 0x88649a83L, 0xbf0e5882L, 0xe6b01e80L, 0xd1dadc81L,

  335.     0x54cc9384L, 0x63a65185L, 0x3a181787L, 0x0d72d586L, 0xa0d0e2a9L,

  336.     0x97ba20a8L, 0xce0466aaL, 0xf96ea4abL, 0x7c78ebaeL, 0x4b1229afL,

  337.     0x12ac6fadL, 0x25c6adacL, 0x1881f1a7L, 0x2feb33a6L, 0x765575a4L,

  338.     0x413fb7a5L, 0xc429f8a0L, 0xf3433aa1L, 0xaafd7ca3L, 0x9d97bea2L,

  339.     0xd073c4b5L, 0xe71906b4L, 0xbea740b6L, 0x89cd82b7L, 0x0cdbcdb2L,

  340.     0x3bb10fb3L, 0x620f49b1L, 0x55658bb0L, 0x6822d7bbL, 0x5f4815baL,

  341.     0x06f653b8L, 0x319c91b9L, 0xb48adebcL, 0x83e01cbdL, 0xda5e5abfL,

  342.     0xed3498beL

  343.     ,

  344.     0x00000000L, 0x6567bcb8L, 0x8bc809aaL, 0xeeafb512L, 0x5797628fL,

  345.     0x32f0de37L, 0xdc5f6b25L, 0xb938d79dL, 0xef28b4c5L, 0x8a4f087dL,

  346.     0x64e0bd6fL, 0x018701d7L, 0xb8bfd64aL, 0xddd86af2L, 0x3377dfe0L,

  347.     0x56106358L, 0x9f571950L, 0xfa30a5e8L, 0x149f10faL, 0x71f8ac42L,

  348.     0xc8c07bdfL, 0xada7c767L, 0x43087275L, 0x266fcecdL, 0x707fad95L,

  349.     0x1518112dL, 0xfbb7a43fL, 0x9ed01887L, 0x27e8cf1aL, 0x428f73a2L,

  350.     0xac20c6b0L, 0xc9477a08L, 0x3eaf32a0L, 0x5bc88e18L, 0xb5673b0aL,

  351.     0xd00087b2L, 0x6938502fL, 0x0c5fec97L, 0xe2f05985L, 0x8797e53dL,

  352.     0xd1878665L, 0xb4e03addL, 0x5a4f8fcfL, 0x3f283377L, 0x8610e4eaL,

  353.     0xe3775852L, 0x0dd8ed40L, 0x68bf51f8L, 0xa1f82bf0L, 0xc49f9748L,

  354.     0x2a30225aL, 0x4f579ee2L, 0xf66f497fL, 0x9308f5c7L, 0x7da740d5L,

  355.     0x18c0fc6dL, 0x4ed09f35L, 0x2bb7238dL, 0xc518969fL, 0xa07f2a27L,

  356.     0x1947fdbaL, 0x7c204102L, 0x928ff410L, 0xf7e848a8L, 0x3d58149bL,

  357.     0x583fa823L, 0xb6901d31L, 0xd3f7a189L, 0x6acf7614L, 0x0fa8caacL,

  358.     0xe1077fbeL, 0x8460c306L, 0xd270a05eL, 0xb7171ce6L, 0x59b8a9f4L,

  359.     0x3cdf154cL, 0x85e7c2d1L, 0xe0807e69L, 0x0e2fcb7bL, 0x6b4877c3L,

  360.     0xa20f0dcbL, 0xc768b173L, 0x29c70461L, 0x4ca0b8d9L, 0xf5986f44L,

  361.     0x90ffd3fcL, 0x7e5066eeL, 0x1b37da56L, 0x4d27b90eL, 0x284005b6L,

  362.     0xc6efb0a4L, 0xa3880c1cL, 0x1ab0db81L, 0x7fd76739L, 0x9178d22bL,

  363.     0xf41f6e93L, 0x03f7263bL, 0x66909a83L, 0x883f2f91L, 0xed589329L,

  364.     0x546044b4L, 0x3107f80cL, 0xdfa84d1eL, 0xbacff1a6L, 0xecdf92feL,

  365.     0x89b82e46L, 0x67179b54L, 0x027027ecL, 0xbb48f071L, 0xde2f4cc9L,

  366.     0x3080f9dbL, 0x55e74563L, 0x9ca03f6bL, 0xf9c783d3L, 0x176836c1L,

  367.     0x720f8a79L, 0xcb375de4L, 0xae50e15cL, 0x40ff544eL, 0x2598e8f6L,

  368.     0x73888baeL, 0x16ef3716L, 0xf8408204L, 0x9d273ebcL, 0x241fe921L,

  369.     0x41785599L, 0xafd7e08bL, 0xcab05c33L, 0x3bb659edL, 0x5ed1e555L,

  370.     0xb07e5047L, 0xd519ecffL, 0x6c213b62L, 0x094687daL, 0xe7e932c8L,

  371.     0x828e8e70L, 0xd49eed28L, 0xb1f95190L, 0x5f56e482L, 0x3a31583aL,

  372.     0x83098fa7L, 0xe66e331fL, 0x08c1860dL, 0x6da63ab5L, 0xa4e140bdL,

  373.     0xc186fc05L, 0x2f294917L, 0x4a4ef5afL, 0xf3762232L, 0x96119e8aL,

  374.     0x78be2b98L, 0x1dd99720L, 0x4bc9f478L, 0x2eae48c0L, 0xc001fdd2L,

  375.     0xa566416aL, 0x1c5e96f7L, 0x79392a4fL, 0x97969f5dL, 0xf2f123e5L,

  376.     0x05196b4dL, 0x607ed7f5L, 0x8ed162e7L, 0xebb6de5fL, 0x528e09c2L,

  377.     0x37e9b57aL, 0xd9460068L, 0xbc21bcd0L, 0xea31df88L, 0x8f566330L,

  378.     0x61f9d622L, 0x049e6a9aL, 0xbda6bd07L, 0xd8c101bfL, 0x366eb4adL,

  379.     0x53090815L, 0x9a4e721dL, 0xff29cea5L, 0x11867bb7L, 0x74e1c70fL,

  380.     0xcdd91092L, 0xa8beac2aL, 0x46111938L, 0x2376a580L, 0x7566c6d8L,

  381.     0x10017a60L, 0xfeaecf72L, 0x9bc973caL, 0x22f1a457L, 0x479618efL,

  382.     0xa939adfdL, 0xcc5e1145L, 0x06ee4d76L, 0x6389f1ceL, 0x8d2644dcL,

  383.     0xe841f864L, 0x51792ff9L, 0x341e9341L, 0xdab12653L, 0xbfd69aebL,

  384.     0xe9c6f9b3L, 0x8ca1450bL, 0x620ef019L, 0x07694ca1L, 0xbe519b3cL,

  385.     0xdb362784L, 0x35999296L, 0x50fe2e2eL, 0x99b95426L, 0xfcdee89eL,

  386.     0x12715d8cL, 0x7716e134L, 0xce2e36a9L, 0xab498a11L, 0x45e63f03L,

  387.     0x208183bbL, 0x7691e0e3L, 0x13f65c5bL, 0xfd59e949L, 0x983e55f1L,

  388.     0x2106826cL, 0x44613ed4L, 0xaace8bc6L, 0xcfa9377eL, 0x38417fd6L,

  389.     0x5d26c36eL, 0xb389767cL, 0xd6eecac4L, 0x6fd61d59L, 0x0ab1a1e1L,

  390.     0xe41e14f3L, 0x8179a84bL, 0xd769cb13L, 0xb20e77abL, 0x5ca1c2b9L,

  391.     0x39c67e01L, 0x80fea99cL, 0xe5991524L, 0x0b36a036L, 0x6e511c8eL,

  392.     0xa7166686L, 0xc271da3eL, 0x2cde6f2cL, 0x49b9d394L, 0xf0810409L,

  393.     0x95e6b8b1L, 0x7b490da3L, 0x1e2eb11bL, 0x483ed243L, 0x2d596efbL,

  394.     0xc3f6dbe9L, 0xa6916751L, 0x1fa9b0ccL, 0x7ace0c74L, 0x9461b966L,

  395.     0xf10605deL

  396. #  endif /* IZ_CRCOPTIM_UNFOLDTBL */

  397. # else /* !IZ_CRC_BE_OPTIMIZ */

  398.     0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,

  399.     0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,

  400.     0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,

  401.     0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,

  402.     0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,

  403.     0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,

  404.     0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,

  405.     0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,

  406.     0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,

  407.     0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,

  408.     0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,

  409.     0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,

  410.     0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,

  411.     0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,

  412.     0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,

  413.     0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,

  414.     0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,

  415.     0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,

  416.     0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,

  417.     0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,

  418.     0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,

  419.     0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,

  420.     0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,

  421.     0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,

  422.     0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,

  423.     0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,

  424.     0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,

  425.     0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,

  426.     0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,

  427.     0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,

  428.     0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,

  429.     0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,

  430.     0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,

  431.     0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,

  432.     0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,

  433.     0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,

  434.     0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,

  435.     0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,

  436.     0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,

  437.     0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,

  438.     0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,

  439.     0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,

  440.     0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,

  441.     0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,

  442.     0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,

  443.     0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,

  444.     0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,

  445.     0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,

  446.     0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,

  447.     0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,

  448.     0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,

  449.     0x2d02ef8dL

  450. #  ifdef IZ_CRCOPTIM_UNFOLDTBL

  451.     ,

  452.     0x00000000L, 0x191b3141L, 0x32366282L, 0x2b2d53c3L, 0x646cc504L,

  453.     0x7d77f445L, 0x565aa786L, 0x4f4196c7L, 0xc8d98a08L, 0xd1c2bb49L,

  454.     0xfaefe88aL, 0xe3f4d9cbL, 0xacb54f0cL, 0xb5ae7e4dL, 0x9e832d8eL,

  455.     0x87981ccfL, 0x4ac21251L, 0x53d92310L, 0x78f470d3L, 0x61ef4192L,

  456.     0x2eaed755L, 0x37b5e614L, 0x1c98b5d7L, 0x05838496L, 0x821b9859L,

  457.     0x9b00a918L, 0xb02dfadbL, 0xa936cb9aL, 0xe6775d5dL, 0xff6c6c1cL,

  458.     0xd4413fdfL, 0xcd5a0e9eL, 0x958424a2L, 0x8c9f15e3L, 0xa7b24620L,

  459.     0xbea97761L, 0xf1e8e1a6L, 0xe8f3d0e7L, 0xc3de8324L, 0xdac5b265L,

  460.     0x5d5daeaaL, 0x44469febL, 0x6f6bcc28L, 0x7670fd69L, 0x39316baeL,

  461.     0x202a5aefL, 0x0b07092cL, 0x121c386dL, 0xdf4636f3L, 0xc65d07b2L,

  462.     0xed705471L, 0xf46b6530L, 0xbb2af3f7L, 0xa231c2b6L, 0x891c9175L,

  463.     0x9007a034L, 0x179fbcfbL, 0x0e848dbaL, 0x25a9de79L, 0x3cb2ef38L,

  464.     0x73f379ffL, 0x6ae848beL, 0x41c51b7dL, 0x58de2a3cL, 0xf0794f05L,

  465.     0xe9627e44L, 0xc24f2d87L, 0xdb541cc6L, 0x94158a01L, 0x8d0ebb40L,

  466.     0xa623e883L, 0xbf38d9c2L, 0x38a0c50dL, 0x21bbf44cL, 0x0a96a78fL,

  467.     0x138d96ceL, 0x5ccc0009L, 0x45d73148L, 0x6efa628bL, 0x77e153caL,

  468.     0xbabb5d54L, 0xa3a06c15L, 0x888d3fd6L, 0x91960e97L, 0xded79850L,

  469.     0xc7cca911L, 0xece1fad2L, 0xf5facb93L, 0x7262d75cL, 0x6b79e61dL,

  470.     0x4054b5deL, 0x594f849fL, 0x160e1258L, 0x0f152319L, 0x243870daL,

  471.     0x3d23419bL, 0x65fd6ba7L, 0x7ce65ae6L, 0x57cb0925L, 0x4ed03864L,

  472.     0x0191aea3L, 0x188a9fe2L, 0x33a7cc21L, 0x2abcfd60L, 0xad24e1afL,

  473.     0xb43fd0eeL, 0x9f12832dL, 0x8609b26cL, 0xc94824abL, 0xd05315eaL,

  474.     0xfb7e4629L, 0xe2657768L, 0x2f3f79f6L, 0x362448b7L, 0x1d091b74L,

  475.     0x04122a35L, 0x4b53bcf2L, 0x52488db3L, 0x7965de70L, 0x607eef31L,

  476.     0xe7e6f3feL, 0xfefdc2bfL, 0xd5d0917cL, 0xcccba03dL, 0x838a36faL,

  477.     0x9a9107bbL, 0xb1bc5478L, 0xa8a76539L, 0x3b83984bL, 0x2298a90aL,

  478.     0x09b5fac9L, 0x10aecb88L, 0x5fef5d4fL, 0x46f46c0eL, 0x6dd93fcdL,

  479.     0x74c20e8cL, 0xf35a1243L, 0xea412302L, 0xc16c70c1L, 0xd8774180L,

  480.     0x9736d747L, 0x8e2de606L, 0xa500b5c5L, 0xbc1b8484L, 0x71418a1aL,

  481.     0x685abb5bL, 0x4377e898L, 0x5a6cd9d9L, 0x152d4f1eL, 0x0c367e5fL,

  482.     0x271b2d9cL, 0x3e001cddL, 0xb9980012L, 0xa0833153L, 0x8bae6290L,

  483.     0x92b553d1L, 0xddf4c516L, 0xc4eff457L, 0xefc2a794L, 0xf6d996d5L,

  484.     0xae07bce9L, 0xb71c8da8L, 0x9c31de6bL, 0x852aef2aL, 0xca6b79edL,

  485.     0xd37048acL, 0xf85d1b6fL, 0xe1462a2eL, 0x66de36e1L, 0x7fc507a0L,

  486.     0x54e85463L, 0x4df36522L, 0x02b2f3e5L, 0x1ba9c2a4L, 0x30849167L,

  487.     0x299fa026L, 0xe4c5aeb8L, 0xfdde9ff9L, 0xd6f3cc3aL, 0xcfe8fd7bL,

  488.     0x80a96bbcL, 0x99b25afdL, 0xb29f093eL, 0xab84387fL, 0x2c1c24b0L,

  489.     0x350715f1L, 0x1e2a4632L, 0x07317773L, 0x4870e1b4L, 0x516bd0f5L,

  490.     0x7a468336L, 0x635db277L, 0xcbfad74eL, 0xd2e1e60fL, 0xf9ccb5ccL,

  491.     0xe0d7848dL, 0xaf96124aL, 0xb68d230bL, 0x9da070c8L, 0x84bb4189L,

  492.     0x03235d46L, 0x1a386c07L, 0x31153fc4L, 0x280e0e85L, 0x674f9842L,

  493.     0x7e54a903L, 0x5579fac0L, 0x4c62cb81L, 0x8138c51fL, 0x9823f45eL,

  494.     0xb30ea79dL, 0xaa1596dcL, 0xe554001bL, 0xfc4f315aL, 0xd7626299L,

  495.     0xce7953d8L, 0x49e14f17L, 0x50fa7e56L, 0x7bd72d95L, 0x62cc1cd4L,

  496.     0x2d8d8a13L, 0x3496bb52L, 0x1fbbe891L, 0x06a0d9d0L, 0x5e7ef3ecL,

  497.     0x4765c2adL, 0x6c48916eL, 0x7553a02fL, 0x3a1236e8L, 0x230907a9L,

  498.     0x0824546aL, 0x113f652bL, 0x96a779e4L, 0x8fbc48a5L, 0xa4911b66L,

  499.     0xbd8a2a27L, 0xf2cbbce0L, 0xebd08da1L, 0xc0fdde62L, 0xd9e6ef23L,

  500.     0x14bce1bdL, 0x0da7d0fcL, 0x268a833fL, 0x3f91b27eL, 0x70d024b9L,

  501.     0x69cb15f8L, 0x42e6463bL, 0x5bfd777aL, 0xdc656bb5L, 0xc57e5af4L,

  502.     0xee530937L, 0xf7483876L, 0xb809aeb1L, 0xa1129ff0L, 0x8a3fcc33L,

  503.     0x9324fd72L

  504.     ,

  505.     0x00000000L, 0x01c26a37L, 0x0384d46eL, 0x0246be59L, 0x0709a8dcL,

  506.     0x06cbc2ebL, 0x048d7cb2L, 0x054f1685L, 0x0e1351b8L, 0x0fd13b8fL,

  507.     0x0d9785d6L, 0x0c55efe1L, 0x091af964L, 0x08d89353L, 0x0a9e2d0aL,

  508.     0x0b5c473dL, 0x1c26a370L, 0x1de4c947L, 0x1fa2771eL, 0x1e601d29L,

  509.     0x1b2f0bacL, 0x1aed619bL, 0x18abdfc2L, 0x1969b5f5L, 0x1235f2c8L,

  510.     0x13f798ffL, 0x11b126a6L, 0x10734c91L, 0x153c5a14L, 0x14fe3023L,

  511.     0x16b88e7aL, 0x177ae44dL, 0x384d46e0L, 0x398f2cd7L, 0x3bc9928eL,

  512.     0x3a0bf8b9L, 0x3f44ee3cL, 0x3e86840bL, 0x3cc03a52L, 0x3d025065L,

  513.     0x365e1758L, 0x379c7d6fL, 0x35dac336L, 0x3418a901L, 0x3157bf84L,

  514.     0x3095d5b3L, 0x32d36beaL, 0x331101ddL, 0x246be590L, 0x25a98fa7L,

  515.     0x27ef31feL, 0x262d5bc9L, 0x23624d4cL, 0x22a0277bL, 0x20e69922L,

  516.     0x2124f315L, 0x2a78b428L, 0x2bbade1fL, 0x29fc6046L, 0x283e0a71L,

  517.     0x2d711cf4L, 0x2cb376c3L, 0x2ef5c89aL, 0x2f37a2adL, 0x709a8dc0L,

  518.     0x7158e7f7L, 0x731e59aeL, 0x72dc3399L, 0x7793251cL, 0x76514f2bL,

  519.     0x7417f172L, 0x75d59b45L, 0x7e89dc78L, 0x7f4bb64fL, 0x7d0d0816L,

  520.     0x7ccf6221L, 0x798074a4L, 0x78421e93L, 0x7a04a0caL, 0x7bc6cafdL,

  521.     0x6cbc2eb0L, 0x6d7e4487L, 0x6f38fadeL, 0x6efa90e9L, 0x6bb5866cL,

  522.     0x6a77ec5bL, 0x68315202L, 0x69f33835L, 0x62af7f08L, 0x636d153fL,

  523.     0x612bab66L, 0x60e9c151L, 0x65a6d7d4L, 0x6464bde3L, 0x662203baL,

  524.     0x67e0698dL, 0x48d7cb20L, 0x4915a117L, 0x4b531f4eL, 0x4a917579L,

  525.     0x4fde63fcL, 0x4e1c09cbL, 0x4c5ab792L, 0x4d98dda5L, 0x46c49a98L,

  526.     0x4706f0afL, 0x45404ef6L, 0x448224c1L, 0x41cd3244L, 0x400f5873L,

  527.     0x4249e62aL, 0x438b8c1dL, 0x54f16850L, 0x55330267L, 0x5775bc3eL,

  528.     0x56b7d609L, 0x53f8c08cL, 0x523aaabbL, 0x507c14e2L, 0x51be7ed5L,

  529.     0x5ae239e8L, 0x5b2053dfL, 0x5966ed86L, 0x58a487b1L, 0x5deb9134L,

  530.     0x5c29fb03L, 0x5e6f455aL, 0x5fad2f6dL, 0xe1351b80L, 0xe0f771b7L,

  531.     0xe2b1cfeeL, 0xe373a5d9L, 0xe63cb35cL, 0xe7fed96bL, 0xe5b86732L,

  532.     0xe47a0d05L, 0xef264a38L, 0xeee4200fL, 0xeca29e56L, 0xed60f461L,

  533.     0xe82fe2e4L, 0xe9ed88d3L, 0xebab368aL, 0xea695cbdL, 0xfd13b8f0L,

  534.     0xfcd1d2c7L, 0xfe976c9eL, 0xff5506a9L, 0xfa1a102cL, 0xfbd87a1bL,

  535.     0xf99ec442L, 0xf85cae75L, 0xf300e948L, 0xf2c2837fL, 0xf0843d26L,

  536.     0xf1465711L, 0xf4094194L, 0xf5cb2ba3L, 0xf78d95faL, 0xf64fffcdL,

  537.     0xd9785d60L, 0xd8ba3757L, 0xdafc890eL, 0xdb3ee339L, 0xde71f5bcL,

  538.     0xdfb39f8bL, 0xddf521d2L, 0xdc374be5L, 0xd76b0cd8L, 0xd6a966efL,

  539.     0xd4efd8b6L, 0xd52db281L, 0xd062a404L, 0xd1a0ce33L, 0xd3e6706aL,

  540.     0xd2241a5dL, 0xc55efe10L, 0xc49c9427L, 0xc6da2a7eL, 0xc7184049L,

  541.     0xc25756ccL, 0xc3953cfbL, 0xc1d382a2L, 0xc011e895L, 0xcb4dafa8L,

  542.     0xca8fc59fL, 0xc8c97bc6L, 0xc90b11f1L, 0xcc440774L, 0xcd866d43L,

  543.     0xcfc0d31aL, 0xce02b92dL, 0x91af9640L, 0x906dfc77L, 0x922b422eL,

  544.     0x93e92819L, 0x96a63e9cL, 0x976454abL, 0x9522eaf2L, 0x94e080c5L,

  545.     0x9fbcc7f8L, 0x9e7eadcfL, 0x9c381396L, 0x9dfa79a1L, 0x98b56f24L,

  546.     0x99770513L, 0x9b31bb4aL, 0x9af3d17dL, 0x8d893530L, 0x8c4b5f07L,

  547.     0x8e0de15eL, 0x8fcf8b69L, 0x8a809decL, 0x8b42f7dbL, 0x89044982L,

  548.     0x88c623b5L, 0x839a6488L, 0x82580ebfL, 0x801eb0e6L, 0x81dcdad1L,

  549.     0x8493cc54L, 0x8551a663L, 0x8717183aL, 0x86d5720dL, 0xa9e2d0a0L,

  550.     0xa820ba97L, 0xaa6604ceL, 0xaba46ef9L, 0xaeeb787cL, 0xaf29124bL,

  551.     0xad6fac12L, 0xacadc625L, 0xa7f18118L, 0xa633eb2fL, 0xa4755576L,

  552.     0xa5b73f41L, 0xa0f829c4L, 0xa13a43f3L, 0xa37cfdaaL, 0xa2be979dL,

  553.     0xb5c473d0L, 0xb40619e7L, 0xb640a7beL, 0xb782cd89L, 0xb2cddb0cL,

  554.     0xb30fb13bL, 0xb1490f62L, 0xb08b6555L, 0xbbd72268L, 0xba15485fL,

  555.     0xb853f606L, 0xb9919c31L, 0xbcde8ab4L, 0xbd1ce083L, 0xbf5a5edaL,

  556.     0xbe9834edL

  557.    ,

  558.     0x00000000L, 0xb8bc6765L, 0xaa09c88bL, 0x12b5afeeL, 0x8f629757L,

  559.     0x37def032L, 0x256b5fdcL, 0x9dd738b9L, 0xc5b428efL, 0x7d084f8aL,

  560.     0x6fbde064L, 0xd7018701L, 0x4ad6bfb8L, 0xf26ad8ddL, 0xe0df7733L,

  561.     0x58631056L, 0x5019579fL, 0xe8a530faL, 0xfa109f14L, 0x42acf871L,

  562.     0xdf7bc0c8L, 0x67c7a7adL, 0x75720843L, 0xcdce6f26L, 0x95ad7f70L,

  563.     0x2d111815L, 0x3fa4b7fbL, 0x8718d09eL, 0x1acfe827L, 0xa2738f42L,

  564.     0xb0c620acL, 0x087a47c9L, 0xa032af3eL, 0x188ec85bL, 0x0a3b67b5L,

  565.     0xb28700d0L, 0x2f503869L, 0x97ec5f0cL, 0x8559f0e2L, 0x3de59787L,

  566.     0x658687d1L, 0xdd3ae0b4L, 0xcf8f4f5aL, 0x7733283fL, 0xeae41086L,

  567.     0x525877e3L, 0x40edd80dL, 0xf851bf68L, 0xf02bf8a1L, 0x48979fc4L,

  568.     0x5a22302aL, 0xe29e574fL, 0x7f496ff6L, 0xc7f50893L, 0xd540a77dL,

  569.     0x6dfcc018L, 0x359fd04eL, 0x8d23b72bL, 0x9f9618c5L, 0x272a7fa0L,

  570.     0xbafd4719L, 0x0241207cL, 0x10f48f92L, 0xa848e8f7L, 0x9b14583dL,

  571.     0x23a83f58L, 0x311d90b6L, 0x89a1f7d3L, 0x1476cf6aL, 0xaccaa80fL,

  572.     0xbe7f07e1L, 0x06c36084L, 0x5ea070d2L, 0xe61c17b7L, 0xf4a9b859L,

  573.     0x4c15df3cL, 0xd1c2e785L, 0x697e80e0L, 0x7bcb2f0eL, 0xc377486bL,

  574.     0xcb0d0fa2L, 0x73b168c7L, 0x6104c729L, 0xd9b8a04cL, 0x446f98f5L,

  575.     0xfcd3ff90L, 0xee66507eL, 0x56da371bL, 0x0eb9274dL, 0xb6054028L,

  576.     0xa4b0efc6L, 0x1c0c88a3L, 0x81dbb01aL, 0x3967d77fL, 0x2bd27891L,

  577.     0x936e1ff4L, 0x3b26f703L, 0x839a9066L, 0x912f3f88L, 0x299358edL,

  578.     0xb4446054L, 0x0cf80731L, 0x1e4da8dfL, 0xa6f1cfbaL, 0xfe92dfecL,

  579.     0x462eb889L, 0x549b1767L, 0xec277002L, 0x71f048bbL, 0xc94c2fdeL,

  580.     0xdbf98030L, 0x6345e755L, 0x6b3fa09cL, 0xd383c7f9L, 0xc1366817L,

  581.     0x798a0f72L, 0xe45d37cbL, 0x5ce150aeL, 0x4e54ff40L, 0xf6e89825L,

  582.     0xae8b8873L, 0x1637ef16L, 0x048240f8L, 0xbc3e279dL, 0x21e91f24L,

  583.     0x99557841L, 0x8be0d7afL, 0x335cb0caL, 0xed59b63bL, 0x55e5d15eL,

  584.     0x47507eb0L, 0xffec19d5L, 0x623b216cL, 0xda874609L, 0xc832e9e7L,

  585.     0x708e8e82L, 0x28ed9ed4L, 0x9051f9b1L, 0x82e4565fL, 0x3a58313aL,

  586.     0xa78f0983L, 0x1f336ee6L, 0x0d86c108L, 0xb53aa66dL, 0xbd40e1a4L,

  587.     0x05fc86c1L, 0x1749292fL, 0xaff54e4aL, 0x322276f3L, 0x8a9e1196L,

  588.     0x982bbe78L, 0x2097d91dL, 0x78f4c94bL, 0xc048ae2eL, 0xd2fd01c0L,

  589.     0x6a4166a5L, 0xf7965e1cL, 0x4f2a3979L, 0x5d9f9697L, 0xe523f1f2L,

  590.     0x4d6b1905L, 0xf5d77e60L, 0xe762d18eL, 0x5fdeb6ebL, 0xc2098e52L,

  591.     0x7ab5e937L, 0x680046d9L, 0xd0bc21bcL, 0x88df31eaL, 0x3063568fL,

  592.     0x22d6f961L, 0x9a6a9e04L, 0x07bda6bdL, 0xbf01c1d8L, 0xadb46e36L,

  593.     0x15080953L, 0x1d724e9aL, 0xa5ce29ffL, 0xb77b8611L, 0x0fc7e174L,

  594.     0x9210d9cdL, 0x2aacbea8L, 0x38191146L, 0x80a57623L, 0xd8c66675L,

  595.     0x607a0110L, 0x72cfaefeL, 0xca73c99bL, 0x57a4f122L, 0xef189647L,

  596.     0xfdad39a9L, 0x45115eccL, 0x764dee06L, 0xcef18963L, 0xdc44268dL,

  597.     0x64f841e8L, 0xf92f7951L, 0x41931e34L, 0x5326b1daL, 0xeb9ad6bfL,

  598.     0xb3f9c6e9L, 0x0b45a18cL, 0x19f00e62L, 0xa14c6907L, 0x3c9b51beL,

  599.     0x842736dbL, 0x96929935L, 0x2e2efe50L, 0x2654b999L, 0x9ee8defcL,

  600.     0x8c5d7112L, 0x34e11677L, 0xa9362eceL, 0x118a49abL, 0x033fe645L,

  601.     0xbb838120L, 0xe3e09176L, 0x5b5cf613L, 0x49e959fdL, 0xf1553e98L,

  602.     0x6c820621L, 0xd43e6144L, 0xc68bceaaL, 0x7e37a9cfL, 0xd67f4138L,

  603.     0x6ec3265dL, 0x7c7689b3L, 0xc4caeed6L, 0x591dd66fL, 0xe1a1b10aL,

  604.     0xf3141ee4L, 0x4ba87981L, 0x13cb69d7L, 0xab770eb2L, 0xb9c2a15cL,

  605.     0x017ec639L, 0x9ca9fe80L, 0x241599e5L, 0x36a0360bL, 0x8e1c516eL,

  606.     0x866616a7L, 0x3eda71c2L, 0x2c6fde2cL, 0x94d3b949L, 0x090481f0L,

  607.     0xb1b8e695L, 0xa30d497bL, 0x1bb12e1eL, 0x43d23e48L, 0xfb6e592dL,

  608.     0xe9dbf6c3L, 0x516791a6L, 0xccb0a91fL, 0x740cce7aL, 0x66b96194L,

  609.     0xde0506f1L

  610. #  endif /* IZ_CRCOPTIM_UNFOLDTBL */

  611. # endif /* ? IZ_CRC_BE_OPTIMIZ */

  612. };

  613. #endif /* ?DYNAMIC_CRC_TABLE */

  614. 

  615. /* use "OF((void))" here to work around a Borland TC++ 1.0 problem */

  616. #ifdef USE_ZLIB

  617. ZCONST uLongf *get_crc_table OF((void))

  618. #else

  619. ZCONST ulg near *get_crc_table OF((void))

  620. #endif

  621. {

  622. #ifdef DYNAMIC_CRC_TABLE

  623.   if (CRC_TABLE_IS_EMPTY)

  624.     make_crc_table();

  625. #endif

  626. #ifdef USE_ZLIB

  627.   return (ZCONST uLongf *)crc_table;

  628. #else

  629.   return crc_table;

  630. #endif

  631. }

  632. 

  633. #ifdef DYNALLOC_CRCTAB

  634. void free_crc_table()

  635. {

  636.   if (!CRC_TABLE_IS_EMPTY)

  637.   {

  638.     nearfree((ulg near *)crc_table);

  639.     MARK_CRCTAB_EMPTY;

  640.   }

  641. }

  642. #endif

  643. 

  644. #ifndef USE_ZLIB

  645. #ifndef CRC_TABLE_ONLY

  646. #ifndef ASM_CRC

  647. 

  648. #define DO1(crc, buf)  crc = CRC32(crc, *buf++, crc_32_tab)

  649. #define DO2(crc, buf)  DO1(crc, buf); DO1(crc, buf)

  650. #define DO4(crc, buf)  DO2(crc, buf); DO2(crc, buf)

  651. #define DO8(crc, buf)  DO4(crc, buf); DO4(crc, buf)

  652. 

  653. #if (defined(IZ_CRC_BE_OPTIMIZ) || defined(IZ_CRC_LE_OPTIMIZ))

  654. 

  655. # ifdef IZ_CRCOPTIM_UNFOLDTBL

  656. #  ifdef IZ_CRC_BE_OPTIMIZ

  657. #    define DO_OPT4(c, buf4)  c ^= *(buf4)++; \

  658.         c = crc_32_tab[c & 0xff] ^ crc_32_tab[256+((c>>8) & 0xff)] ^ \

  659.             crc_32_tab[2*256+((c>>16) & 0xff)] ^ crc_32_tab[3*256+(c>>24)]

  660. #  else /* !IZ_CRC_BE_OPTIMIZ */

  661. #    define DO_OPT4(c, buf4)  c ^= *(buf4)++; \

  662.         c = crc_32_tab[3*256+(c & 0xff)] ^ crc_32_tab[2*256+((c>>8) & 0xff)] \

  663.            ^ crc_32_tab[256+((c>>16) & 0xff)] ^ crc_32_tab[c>>24]

  664. #  endif /* ?IZ_CRC_BE_OPTIMIZ */

  665. # else /* !IZ_CRCOPTIM_UNFOLDTBL */

  666. #    define DO_OPT4(c, buf4)  c ^= *(buf4)++; \

  667.        c = CRC32UPD(c, crc_32_tab); \

  668.        c = CRC32UPD(c, crc_32_tab); \

  669.        c = CRC32UPD(c, crc_32_tab); \

  670.        c = CRC32UPD(c, crc_32_tab)

  671. # endif /* ?IZ_CRCOPTIM_UNFOLDTBL */

  672. 

  673. # define DO_OPT16(crc, buf4) DO_OPT4(crc, buf4); DO_OPT4(crc, buf4); \

  674.                              DO_OPT4(crc, buf4); DO_OPT4(crc, buf4);

  675. 

  676. #endif /* (IZ_CRC_BE_OPTIMIZ || IZ_CRC_LE_OPTIMIZ) */

  677. 

  678. 

  679. /* ========================================================================= */

  680. ulg crc32(crc, buf, len)

  681.     ulg crc;                    /* crc shift register */

  682.     register ZCONST uch *buf;   /* pointer to bytes to pump through */

  683.     extent len;                 /* number of bytes in buf[] */

  684. /* Run a set of bytes through the crc shift register.  If buf is a NULL

  685.    pointer, then initialize the crc shift register contents instead.

  686.    Return the current crc in either case. */

  687. {

  688.   register z_uint4 c;

  689.   register ZCONST ulg near *crc_32_tab;

  690. 

  691.   if (buf == NULL) return 0L;

  692. 

  693.   crc_32_tab = get_crc_table();

  694. 

  695.   c = (REV_BE((z_uint4)crc) ^ 0xffffffffL);

  696. 

  697. #if (defined(IZ_CRC_BE_OPTIMIZ) || defined(IZ_CRC_LE_OPTIMIZ))

  698.   /* Align buf pointer to next DWORD boundary. */

  699.   while (len && ((ptrdiff_t)buf & 3)) {

  700.     DO1(c, buf);

  701.     len--;

  702.   }

  703.   {

  704.     ZCONST z_uint4 *buf4 = (ZCONST z_uint4 *)buf;

  705.     while (len >= 16) {

  706.       DO_OPT16(c, buf4);

  707.       len -= 16;

  708.     }

  709.     while (len >= 4) {

  710.       DO_OPT4(c, buf4);

  711.       len -= 4;

  712.     }

  713.     buf = (ZCONST uch *)buf4;

  714.   }

  715. #else /* !(IZ_CRC_BE_OPTIMIZ || IZ_CRC_LE_OPTIMIZ) */

  716. #ifndef NO_UNROLLED_LOOPS

  717.   while (len >= 8) {

  718.     DO8(c, buf);

  719.     len -= 8;

  720.   }

  721. #endif /* !NO_UNROLLED_LOOPS */

  722. #endif /* ?(IZ_CRC_BE_OPTIMIZ || IZ_CRC_LE_OPTIMIZ) */

  723.   if (len) do {

  724.     DO1(c, buf);

  725.   } while (--len);

  726. 

  727.   return REV_BE(c) ^ 0xffffffffL;   /* (instead of ~c for 64-bit machines) */

  728. }

  729. #endif /* !ASM_CRC */

  730. #endif /* !CRC_TABLE_ONLY */

  731. #endif /* !USE_ZLIB */

  732. #endif /* !USE_ZLIB || USE_OWN_CRCTAB */