#pragma SMALL
#include<reg52.h>
int segment[10] = {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F};
int runningNum = 0;
bit isRight = 1;
int count=0;
sbit Switch_pin = P3^0;

bit old = 0;
bit new = 0;

void delay(int ms) {
	int i, j;
	for(i=0;i<10;i++) {
		for(j=0;j<ms;j++) {
		}
	}
}

void runningSEG(bit isRight){
	if (runningNum == 100) {
		runningNum = 0;
	}
	if (isRight)
	{
		P0 = segment[runningNum / 10];
	} else {
		P0 = segment[runningNum % 10];

	}
}



void main(void) {
	P0 = 0x00;
	P2 = 0x02;
	while(1) {
		//Push Btn = Switch_pin = 0
    /* Use Push Btn as Toggle Switch */
		new = !Switch_pin;
		if(new != old && new) {
      //If push btn, increase number by 1
			runningNum++;
		}
		old = new;

    /* Display number on two 7-Segment */
		runningSEG(isRight);
		if(isRight) {
			P2 = 0x01;
		} else {
			P2 = 0x02;
		}
		isRight = !isRight;
		delay(100);
	}
}