#if USE_HD_FLASH_STRING == 2
void hd_flash_string(char *string){
    while(hd_char(pgm_read_byte(string++)));
}
#endif

#if USE_HD_FLASH_STRING == 1
void hd_flash_string(char *string){
    register char buffer;
    while((buffer = pgm_read_byte(string++))) hd_char(buffer);
}
#endif