|
Calculo CRC-8
Hola a tod@s.
Os dejo código fuente para calcular el CRC-8:
MICROFOCUS COBOL:
$set sourceformat(variable)
program-id. CRC8 as "CRC8".
environment division.
configuration section.
data division.
working-storage section.
01 CRC8-Table.
05 filler occurs 256.
10 tbByte PIC X(1).
10 tbByteNum redefines tbByte PIC S9(2) COMP-5.
01 cadena PIC X(256) VALUE
"TBAI-00000006Y-251019-btFpwP8dcLGAF-".
01 len PIC 9(2) COMP-5.
01 crc PIC X(1).
01 crcNum redefines crc PIC 9(2) comp-5.
01 crcNumInt PIC S9(9) COMP-5.
01 idx-1 PIC 9(2) COMP-5.
01 tmpChar PIC X(1).
01 tmpIdx redefines tmpChar PIC S9(2) COMP-5.
01 tmpIdxInt PIC S9(9) COMP-5.
procedure division.
perform chargeTable
perform getLen
move 1 to idx-1
move 0 to crcNumInt
perform until idx-1 > len
move cadena(idx-1:1) to tmpChar
move tmpIdx to tmpIdxInt
call "CBL_XOR" using crcNumInt tmpIdxInt by value 4
display tmpIdxInt " " no advancing
call "CBL_AND" using X"FF000000" tmpIdxInt by value 4
display tmpIdxInt " "
tbByteNum(tmpIdxInt + 1) " " no advancing
move tbByte(tmpIdxInt + 1) to crc
move crcNum to crcNumInt
display crcNumInt " "
add 1 to idx-1
end-perform
call "CBL_AND" using X"FF000000" crcNumInt by value 4
display crcNumInt
move crcNumInt to crcNum
display crcNum " " crc
goback
.
chargeTable.
string
X"00", X"07", X"0E", X"09",
X"1C", X"1B", X"12", X"15", X"38", X"3F", X"36", X"31",
X"24", X"23", X"2A", X"2D", X"70", X"77", X"7E", X"79",
X"6C", X"6B", X"62", X"65", X"48", X"4F", X"46", X"41",
X"54", X"53", X"5A", X"5D", X"E0", X"E7", X"EE", X"E9",
X"FC", X"FB", X"F2", X"F5", X"D8", X"DF", X"D6", X"D1",
X"C4", X"C3", X"CA", X"CD", X"90", X"97", X"9E", X"99",
X"8C", X"8B", X"82", X"85", X"A8", X"AF", X"A6", X"A1",
X"B4", X"B3", X"BA", X"BD", X"C7", X"C0", X"C9", X"CE",
X"DB", X"DC", X"D5", X"D2", X"FF", X"F8", X"F1", X"F6",
X"E3", X"E4", X"ED", X"EA", X"B7", X"B0", X"B9", X"BE",
X"AB", X"AC", X"A5", X"A2", X"8F", X"88", X"81", X"86",
X"93", X"94", X"9D", X"9A", X"27", X"20", X"29", X"2E",
X"3B", X"3C", X"35", X"32", X"1F", X"18", X"11", X"16",
X"03", X"04", X"0D", X"0A", X"57", X"50", X"59", X"5E",
X"4B", X"4C", X"45", X"42", X"6F", X"68", X"61", X"66",
X"73", X"74", X"7D", X"7A", X"89", X"8E", X"87", X"80",
X"95", X"92", X"9B", X"9C", X"B1", X"B6", X"BF", X"B8",
X"AD", X"AA", X"A3", X"A4", X"F9", X"FE", X"F7", X"F0",
X"E5", X"E2", X"EB", X"EC", X"C1", X"C6", X"CF", X"C8",
X"DD", X"DA", X"D3", X"D4", X"69", X"6E", X"67", X"60",
X"75", X"72", X"7B", X"7C", X"51", X"56", X"5F", X"58",
X"4D", X"4A", X"43", X"44", X"19", X"1E", X"17", X"10",
X"05", X"02", X"0B", X"0C", X"21", X"26", X"2F", X"28",
X"3D", X"3A", X"33", X"34", X"4E", X"49", X"40", X"47",
X"52", X"55", X"5C", X"5B", X"76", X"71", X"78", X"7F",
X"6A", X"6D", X"64", X"63", X"3E", X"39", X"30", X"37",
X"22", X"25", X"2C", X"2B", X"06", X"01", X"08", X"0F",
X"1A", X"1D", X"14", X"13", X"AE", X"A9", X"A0", X"A7",
X"B2", X"B5", X"BC", X"BB", X"96", X"91", X"98", X"9F",
X"8A", X"8D", X"84", X"83", X"DE", X"D9", X"D0", X"D7",
X"C2", X"C5", X"CC", X"CB", X"E6", X"E1", X"E8", X"EF",
X"FA", X"FD", X"F4", X"F3"
delimited by size into CRC8-Table
.
getLen.
move 36 to len
*> Fujitsu: function stored-cahr-length
*> Otros: un bucle, unstring con x"00" o NOT = SPACES etc.
.
end program CRC8.
WINDEV:
PROCEDURE calcular_CRC8(Cadena is UNICODE string)
CRC8_Table is array of byte = [0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15, 0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D,
0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65, 0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D,
0xE0, 0xE7, 0xEE, 0xE9, 0xFC, 0xFB, 0xF2, 0xF5, 0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85, 0xA8, 0xAF, 0xA6, 0xA1, 0xB4, 0xB3, 0xBA, 0xBD,
0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2, 0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA,
0xB7, 0xB0, 0xB9, 0xBE, 0xAB, 0xAC, 0xA5, 0xA2, 0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32, 0x1F, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0D, 0x0A,
0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42, 0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A,
0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C, 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC, 0xC1, 0xC6, 0xCF, 0xC8, 0xDD, 0xDA, 0xD3, 0xD4,
0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C, 0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44,
0x19, 0x1E, 0x17, 0x10, 0x05, 0x02, 0x0B, 0x0C, 0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B, 0x76, 0x71, 0x78, 0x7F, 0x6A, 0x6D, 0x64, 0x63,
0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B, 0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13,
0xAE, 0xA9, 0xA0, 0xA7, 0xB2, 0xB5, 0xBC, 0xBB, 0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB, 0xE6, 0xE1, 0xE8, 0xEF, 0xFA, 0xFD, 0xF4, 0xF3]
Idx_1 is int = 1
Len is int = Length(Cadena)
TmpIdx is bytes = 0
CrcNum is byte = 0
CRC is UNICODE string = ""
Cadena = StringToUTF8(Cadena,charsetUTF8)
FOR Idx_1 = 1 TO Len
TmpIdx = Asc(Middle(Cadena,Idx_1,1))
TmpIdx = BinaryXOR(CrcNum,TmpIdx)
TmpIdx = BinaryAND(0xFF,TmpIdx)
CrcNum = CRC8_Table[TmpIdx + 1]
END
CrcNum = BinaryAND(0xFF,CrcNum)
CRC = NumToString(CrcNum,"%03d")
RESULT = CRC
Saludos y gracias por todo.
|