/********************************
*This program takes the numbers	*
*in the string, encodes them for*
*the display, activates the 	*
*correct display and sends the 	*
*code out			*
********************************/

#include <stdio.h>
#include <reg51.h>
char numbers[] = {0,1,2,3};
char encode (char num);

void main (void){
	int i = 0;
	int select = 1;

	
	while (1){
		P2 = encode(numbers[i]);
		P1 = ~select;
		select = select * 2;
		if (select > 8){
			select=1;
		}
		i++;
		if(i == 4){
			i=0;
		}

	}
}

char encode (char num){
	if (num == 0)
		return (~1);
	if (num == 1)
		return (~79);
	if (num == 2)
		return (~18);
	if (num == 3)
		return (~6);
	if (num == 4)
		return (~76);
	if (num == 5)
		return (~36);
	if (num == 6)
		return (~32);
	if (num == 7)
		return (~15);
	if (num == 8)
		return (0);
	if (num == 9)
		return (~12);
}