#include <dos.h>
#include <stdio.h>
#include <conio.h>

/* Serial Ports Address, using COM2 */

#define PORT2 0x2F8


void main(void)
{
char command;
/* Turn off interrupts on Port2 */

outportb(PORT2 + 1 , 0);

/* Setting DLAB ON */

outportb(PORT2 + 3 , 0x80);

/* Setting Baud rate to 9600 - Divisor Latch Low Byte */

outportb(PORT2 + 0 , 0x0C);

/* Set Baud rate - Divisor Latch High Byte */

outportb(PORT2 + 1 , 0x00); 

/* 8 Bits, No Parity, 1 Stop Bit */

outportb(PORT2 + 3 , 0x03); 

/* FIFO Control Register */

outportb(PORT2 + 2 , 0xC7); 

/* Turn on DTR, RTS, and OUT2 */

outportb(PORT2 + 4 , 0x0B); 

command = 27;

/* Sending the command to the Serial Port */

outportb(PORT2, command);
}