// Relative addressing:

ADDSP 3     // allocate x, y, rv
PUSHIMM 10  // push the value to store for x
STOREOFF 1  // store the value 10 in x
PUSHIMM 20  // push the value to store for y
STOREOFF 2  // store the value 20 in y
PUSHOFF 1   // retrieve the value of x
PUSHOFF 2   // retrieve the value of y
ADD         // x+y
STOREOFF 0  // store the value of x+y in rv
ADDSP -2    // remove x and y from the stack
STOP        // halt; the return value should return 30