int S1; // assigning a variable S1
int S2; // assigning another variable S2

S1=PINx&0b00000001; //Give your one input at first pin of x port
S2=PINx&0b00000010; //Give your other input at second pin of x port

while(1)
{
	if(S1==1 && S2==2) //If both pins taking high input
	{ // operational code
	}
}