illegal instruction이요..

void load_env_data(void)
{
    FILE *fp;
    
    if((fp = fopen("ENV.DAT","rb"))==NULL){
    	printf("\nENV.DAT file not found");
    }
    env_info.numacu    = fgetc(fp);
    env_info.numacu    = ((env_info.numacu << 8) & 0xff00) | fgetc(fp);
    env_info.server_ip = fgetc(fp);
    env_info.server_ip = ((env_info.server_ip << 8) & 0xffffffff) | fgetc(fp);
    env_info.server_ip = ((env_info.server_ip << 8) & 0xffffffff) | fgetc(fp);
    env_info.server_ip = ((env_info.server_ip << 8) & 0xffffffff) | fgetc(fp);
    env_info.tcpport   = fgetc(fp);
    env_info.tcpport   = ((env_info.tcpport << 8) & 0xff00) | fgetc(fp);
    env_info.hexopt    = fgetc(fp);
    env_info.relaytime = fgetc(fp);
    
    fclose(fp);
}