SKXBEE Mode in C Language

//Mode : Xbee
// Description : Control the robot using UART ( XBEE or an UART wireless module.
//======================================================

void wireless_xbee (void)

{
lcd_clr();
while(1)
{

lcd_goto (0);
if (data[0] == 100)

{
send_string(" XBEE CONTROL ");
SPEEDL = 200;
SPEEDR = 200;
while(1)

{
lcd_goto(20);
if (RCREG == '8')

{
forward();
send_string("FORWARD ");
}

else if (RCREG == '2')
{
backward();
send_string("BACKWARD ");
}

else if (RCREG == '6')
{
right();
send_string("TURN RIGHT ");

}
else if (RCREG == '4')
{
left();
send_string("TURN LEFT ");

}
else if (RCREG == '5')
{
stop();
send_string("INVALID COMMAND ");

}

else
{
stop();
send_string("INVALID COMMAND ");

}
}
}
else send_string("COMMAND");
}
}