#include <avr/io.h>

void secDelay(int count){
	int i;
	for(;count>0;count--){
		for(i=1000; i>0;i--){
			i--;
		}	
	}
}

void tenthSecDelay(int count){
	int i;
	for (;count>0; count--){
		for(i=100; i>0;i--){
			i--;
		}	
	}
}

int main(){
	DDRD	= 0x00; // make D all input; adjusts wait until power-on
	PORTD	= 0xFF;
	DDRB    = 0xC0; // 1100 0000; makes PB7, PB6 output and the rest input
	PORTB	= 0x3F; // engage pullup on first six bits
	
	while (1) {

	PORTB = 0x40;
	secDelay(100); // delay at beginning
        PORTB = 0x80;
        secDelay(100); //
        PORTB = 0x40;


/*
		PORTB = 0x80; // 1000 0000; makes PB7 = !Q = On, PB6 = Q = Off

		int tenthSecOff = PIND;
		int tenthSecOn = PINB;
		
		tenthSecDelay(tenthSecOff);
		//tenthSecDelay(tenthDelay);

		if (tenthSecOn > 0) {
			// PB6 is Q, PB7 is !Q
			PORTB = 0x40; // 0100 0000
			//secDelay(secsOn);
			//tenthSecDelay(tenthsOn);
			tenthSecDelay(tenthSecOn);
			PORTB = 0x80; // 1000 0000
			break; // turn on !Q, turn off Q, die
		} else {
			PORTB = 0x40; // must be infinitely on
			break; // goes to next infinite while which is dead
		}

*/

	}

	while (1) { }

	return 0;
}