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- #include "data.h"
- word crc_update (char far *data, word size)
- {
- word i;
- word j;
- word crc=0;
- for (j=0; j<size; j++){
- crc = crc ^ ((word)data[j]<< 8);
- for (i=0; i<8; i++){
- if (crc & 0x8000)
- crc = (crc << 1) ^ 0x1021;
- else
- crc <<= 1;
- }
- }
- return crc;
- }
- word crc_update_mem (unsigned long addr, word size)
- {
- word i;
- word j;
- word crc=0;
- for (j=0; j<size; j++){
- crc = crc ^ ((word) *(byte*)(addr+j)<< 8);
- for (i=0; i<8; i++){
- if (crc & 0x8000)
- crc = (crc << 1) ^ 0x1021;
- else
- crc <<= 1;
- }
- }
- return crc;
- }
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