/********************************
*This program uses interrupts so*
* that when the full string has	*
*been received it is sent out 	*
*again on the serial port 	*
********************************/

#include <reg51.h>

unsigned char index;
char name[] = "Tobias Mole ";

main (void){
			/*initialise serial port and est int*/	
	TMOD = 0x20; 	/*PUT TIMER 1 INTO 8-BIT MODE*/
	TH1 = 243;
	TR1 = 1; 	/*START TIMER 1*/

	SM0 = 0;
	SM1 = 1; 	/*SET SERIAL PORT AS 8-BIT UART*/
	
	IT1 = 1; 	/*EDGE TRIG. INT1*/
	EX1 = 1; 	/*ENABLE INT1*/
	ES = 1; 	/*ENABLE SERIAL PORT INT*/
	
	EA = 1; 	/*ENABLE ALL*/
	
	while (1){} 	/*DO NOTHING*/

}

void external1ISR (void) interrupt 2{
	index = 0;
	TI = 1;
}

void serialPortISR (void) interrupt 4{
	if (name[index] != 0){
		SBUF = name[index];
		index++;
	}
	TI = 0;
}