#include<stdio.h>
#include "crc-32.h"

#define BUF_LEN 1024
#define BYTE 0x21

int main( int argc, char * argv[] ){

    unsigned char buf[BUF_LEN] ;
   
    int i ;
    int i1, i2, i3 ;
  
    for ( i=0; i<8; i++ ) buf[i] = BYTE ;
    i1 = doFCS(buf,8,0) ;
    for ( i=0; i<8; i++ ) buf[i] = ~BYTE ;
    i2 = doFCS(buf,8,0) ;
    for ( i=0; i<8; i++ ) buf[i] = 0xff ;
    i3 = doFCS(buf,8,0) ;

    printf("0x%02x 0x%08x\n", BYTE, i1 ) ;
    printf("0x%02x 0x%08x\n", ~BYTE, i2 ) ;
    printf("0x%02x 0x%08x\n", 0xff, i3 ) ;

    printf("exor i1, i2, i3 = 0x%08x\n", i1^i2^i3 ) ;

}