DOS Fn 58H: Set or Query Memory Allocation Options

     See: Fn 5800H (query allocation strategy)       3.0+

          Fn 5801H (set allocation strategy)         3.0+

          Fn 5802H (query upper-memory link state)   5.0+

          Fn 5803H (set upper-memory link state)     5.0+

See Also: Accessing Upper Memory
          Fn 48H (allocate memory)
          Memory Control Functions
          DOS Functions
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