Int 21 Fn 2521  P - Phar Lap 386/dos-extender Vmm - LIMit Program's Exten  [E]

   AX = 2521h
   EBX = max 4k pages of physical extended memory which program may use

Return: CF clear if successful
      EBX = maximum limit in pages
      ECX = minimum limit in pages
   CF set on error
       EAX = error code
       08h insufficient memory or -nopage switch used

See Also: AX=2522h