NAME
        FreeExpansionMem - allocate standard device expansion memory

   SYNOPSIS
        FreeExpansionMem( startSlot, numSlots )
                          D0         D1

   FUNCTION
        (Not typically called by user code)

        This function allocates numslots of expansion space (each slot
        is E_SLOTSIZE bytes).  It is the inverse function of
        allocexpansionmem().

   INPUTS
        startSlot - the slot number that was allocated, or -1 for error.
        numSlots - the number of slots to be freed.

   RESULTS

   EXAMPLES

   EXCEPTIONS
        If the caller tries to free a slot that is already in the
        free list, FreeExpansionMem will alert() (e.g. crash the
        system).

   SEE ALSO
        allocexpansionmem()

   BUGS