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─────Run-Time Library───────────────────────────────────────────────────────
 
     The _halloc function allocates a huge array from the operating
     system consisting of <num> elements, each of which is <size> bytes
     long. Each element is initialized to 0. If the size of the array
     is greater than 128K (131,072 bytes), the size of an array element
     must then be a power of 2.
 
     Use the _hfree function to deallocate a block of memory returned
     by _halloc.
 
     Return Value
 
     The _halloc function returns a void huge pointer to the allocated
     space, which is guaranteed to be suitably aligned for storage of
     any type of object. To get a pointer to a type other than void
     huge, use a type cast on the return value. The return value is
     NULL if the request cannot be satisfied.
                                    -♦-