Function set_stty

bsp/simulator/drivers/uart_console.c:98–107

simulate windows' getch(), it works!!*/

static struct termios oldt, newt;
/*simulate windows' getch(), it works!!*/
static void set_stty(void)
{
    /* get terminal input's attribute */
    tcgetattr(STDIN_FILENO, &oldt);
    newt = oldt;

    /* set termios' local mode */
    newt.c_lflag &= ~(ECHO|ICANON);
    tcsetattr(STDIN_FILENO, TCSANOW, &newt);
}

void restore_stty(void)
{