public link unit receive {}
driver.receive = receive;
public link bit OS_EventFlag = driver.OS_EventFlag;
public link bit Key0Press = driver.key0_press;
public link bit Key1Press = driver.key1_press;
public link bit Key2Press = driver.key2_press;
public link bit Key3Press = driver.key3_press;
public link bit OS_time = driver.OS_time;
public link void OS_init(){} = driver.OS_init;
public link void OS_run(){} = driver.OS_run;
