ARRAYS

Declaration

d dim,n  Define array

         This completes the definition of 'n' arrays of
         dimension 'dim'.  The stack contains 'dim' pairs of
         bounds, and tne arrays are the last 'n' descriptors
         to have been defined.

         for example    integerarray A,B(1:5)

                        $1A,33,1,0$2B,33,1,0 N1N5 d1,2


Array Access

i        Evaluate (non-terminal) array index.
         The top two elements on the stack are the index
         descriptor and the array descriptor.
         The index descriptor is removed from the stack

a        Perform an array access.
         The stack contains the final/only index and the
         array desriptor.  These two are removed from the
         stack and replaced by a descriptor of the array
         element accessed.

         e.g. A(J)

              @5       stack descriptor for 'C'
              @1       stack descriptor for 'J'
              i        index
              @2       stack descriptor for 'K'
              a        array access leaving [C(J, K)] on the
                       stack.




















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