public const int32 ַ = 0;
driver.Addr = ַ;
public link unit char {} = driver.char;
public link void OS_init(){} = driver.OS_init;
public link void OS_thread(){} = driver.OS_thread;
public link void (){} = driver.clear;
public link void յ_(bit n1){} = driver.clear_line;
public link void _е_ʾַ_(bit n1,bit n3,bit n5){} = driver.print_line;
public link void 򿪱(){} = driver.open_back;
public link void رձ(){} = driver.close_back;
