/* CRCTABLE 1.0 Public Domain by Celso Minnitti, Jr Feb-06-94 */
/* This program will generate the crc16_table and CRC32_table */
/* that are used by CMCRC.ASM */
#include <stdio.h>
#define CRC32_POLYNOMIAL 0xEDB88320
#define CRC16_POLYNOMIAL 0xA001
void main()
{
unsigned long crc32Table[256];
unsigned int crc16Table[256];
unsigned int crc;
unsigned long crc32;
int i, j;
printf("CRCTABLE 1.0 Public Domain by Celso Minnitti, Jr Feb-06-94\n\n");
for (i = 0; i < 256; i++) {
crc = i;
for (j = 8; j > 0; j--) {
if (crc & 1)
crc = (crc >> 1) ^ CRC16_POLYNOMIAL;
else
crc >>= 1;
}
crc16Table[i] = crc;
}
printf("\ncrc16_table\tlabel\tword");
for (i = 0; i < 256; i++) {
if (!(i%32) && i) printf("\n; %Xh", i);
if (!(i%8)) printf("\n\tdw ");
if (i%8 != 7) printf("0%04Xh, ", crc16Table[i]);
else
printf("0%04Xh", crc16Table[i]);
}
printf("\n");
for (i = 0; i < 256; i++) {
crc32 = i;
for (j = 8; j > 0; j--) {
if (crc32 & 1)
crc32 = (crc32 >> 1) ^ CRC32_POLYNOMIAL;
else
crc32 >>= 1;
}
crc32Table[i] = crc32;
}
printf("\ncrc32_table\tlabel\tdword");
for (i = 0; i < 256; i++) {
if (!(i%16) && i) printf("\n; %Xh", i);
if (!(i%4)) printf("\n\tdd ");
if (i%4 != 3) printf("0%08lXh, ", crc32Table[i]);
else
printf("0%08lXh", crc32Table[i]);
}
}
