lcd switch counter

lcd_switch_counter.c

#include <LCD.h>

sbit l1  = P3^0;
sbit l2  = P3^1;

sbit s1 = P3^2;
sbit s2 = P3^3;
sbit s4 = P3^5;

void counter_3(){
	char* arr[] = {"000", "001", "010", "011", "100", "101", "110", "111"};
	int i;
	for(i=0;i<8;i++){
		LCD_WRITE(arr[i], 0, 0);
		delay(1000);
		LCD_CMD(LCD_CLEAR);
	}
}

void counter_2(){
	char* arr[] = {"00", "01", "10", "11"};
	int i;
	for(i=0;i<4;i++){
		LCD_WRITE(arr[i], 0, 0);
		delay(1000);
		LCD_CMD(LCD_CLEAR);
	}
}

void counter_1(){
	char* arr[] = {"0", "1"};
	int i;
	for(i=0;i<2;i++){
		LCD_WRITE(arr[i], 0, 0);
		delay(1000);
		LCD_CMD(LCD_CLEAR);
	}
}

void main() {
	s1 = s2 = s4 = l1 = l2 = 1;
	LCD_INIT();
	LCD_CMD(LCD_CLEAR);
	while(1){
		if(s1==1 && s2==0){
			l1 = 1;
			l2 = 0;
			if (s4 == 0)
				counter_1();
		}
		else if(s1==0 && s2==1){
			l1 = 0;
			l2 = 1;
			if (s4 == 0)
				counter_2();
		}
		else if(s1==0 && s2==0){
			l1 = 0;
			l2 = 0;
			if (s4 == 0)
				counter_3();
		}
	}
}