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00025 #include "co_math.h"
00026 #include "co_utils.h"
00027
00028
00029
00030
00031
00033 static const uint32_t crc_tab[256] =
00034 {
00035 0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL,
00036 0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L,
00037 0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L,
00038 0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L,
00039 0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL,
00040 0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L,
00041 0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL,
00042 0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L,
00043 0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L,
00044 0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL,
00045 0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L,
00046 0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L,
00047 0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L,
00048 0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL,
00049 0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L,
00050 0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL,
00051 0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL,
00052 0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L,
00053 0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L,
00054 0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L,
00055 0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL,
00056 0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L,
00057 0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL,
00058 0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L,
00059 0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L,
00060 0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL,
00061 0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L,
00062 0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L,
00063 0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L,
00064 0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL,
00065 0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L,
00066 0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL,
00067 0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL,
00068 0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L,
00069 0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L,
00070 0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L,
00071 0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL,
00072 0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L,
00073 0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL,
00074 0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L,
00075 0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L,
00076 0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL,
00077 0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L,
00078 0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L,
00079 0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L,
00080 0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL,
00081 0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L,
00082 0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL,
00083 0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL,
00084 0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L,
00085 0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L,
00086 0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L,
00087 0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL,
00088 0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L,
00089 0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL,
00090 0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L,
00091 0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L,
00092 0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL,
00093 0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L,
00094 0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L,
00095 0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L,
00096 0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL,
00097 0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L,
00098 0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL
00099 };
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00105
00106 uint32_t co_crc32(uint32_t addr, uint32_t len, uint32_t crc)
00107 {
00108 while (len--)
00109 {
00110 crc = (crc << 8) ^ crc_tab[(crc >> 24) ^ co_read8p(addr++)];
00111 }
00112
00113 return crc;
00114 }
00115
00116
