Takes a two-word long integer from the stack and stores it in an array
of long integers. arrayref is a reference to an array of long integers.
index is an int. value is the long integer value to be stored in
the array. arrayref, index and value are removed from the
stack, and value is stored in the array at the given index.
Exceptions
NullPointerException - arrayref is null ArrayIndexOutOfBoundsException - index is < 0 or >=
arrayref.length
Notes
Array indices start at 0 (the first entry in the array is at
index 0).