ir sensor array

sensor.c

#include <LCD.h>
#include <stdio.h>

sbit IR1=P1^0;
sbit IR2=P1^1;
sbit IR3=P1^2;
sbit IR4=P1^3;
sbit IR5=P1^4;

// intuitive code

void timer_delay()		/* Timer0 delay function */
{
	TH0 = 0x00;		/* Load higher 8-bit in TH0 */
	TL0 = 0x00;		/* Load lower 8-bit in TL0 */
	TR0 = 1;		/* Start timer0 */
	while(TF0 == 0);	/* Wait until timer0 flag set */
	TR0 = 0;		/* Stop timer0 */
	TF0 = 0;		/* Clear timer0 flag */
}

void main()
{
		char l1, l2, l3, l4, l5;
		char str[50];
	
		TMOD = 0x01;		/* Timer0 mode1 (16-bit timer mode) */
	
    LCD_INIT();
		LCD_WRITE("1 2 3 4 5", 0, 0);
	
    while(1) {
				l1 = IR1 ? 'D' : 'N';
				l2 = IR2 ? 'D' : 'N';
				l3 = IR3 ? 'D' : 'N';
				l4 = IR4 ? 'D' : 'N';
				l5 = IR5 ? 'D' : 'N';
			
				sprintf(str, "%c %c %c %c %c", l1, l2, l3, l4, l5);
				LCD_WRITE(str, 1, 0);
				
				timer_delay();
    }
}