ti_sw.c

// Resume project - RNG in ARM processor
int main(){
	while(1){
		a = read_pin(1)
		b = read_pin(2)
		c = read_pin(3)
		num = (a<<2) | (b<<1) | (c);
    }
	return 0;
}

// given a number, turn all bits of that number in positions [start, stop] to 1.
long int fun(long int a, int start, int stop){
	for(int i=start;i<=stop;i++){
		a = a | (1<<i);
    }
	return a;
}

// given a number, return the next higher multiple of 256.
// e.g.: 120 -> 256
//       300 -> 512
//       256 -> your choice (i choose 512 :))
int fun2(int num){
	num = num >> 8;
	num += 1;
	return (num << 8);
}

// - What is an interrupt? How is it handled - what happens when an interrupt occurs?
// - What is RTOS?
// - What is a semaphore?
// - What is a mutex?
// Overall Time: 15-20 mins