Int 31 Fn 0602  P - DPMI 0.9+ - Mark Real Mode Region As Pageable          [E]

   AX = 0602h
   BX:CX = starting linear address
   SI:DI = size of region in bytes

Return: CF clear if successful
   CF set on error
       none of the memory is made pageable
       AX = error code (DPMI 1.0+) (8002h,8025h) (see AX=0000h)

Notes: must relock all unlocked real mode memory before terminating process
     for DPMI 0.9; DPMI 1.0+ automatically relocks real mode memory
   pages at beginning and end will be unlocked if the region overlaps them
   pageability of real mode pages is binary, not a count

See Also: AX=0600h,AX=0603h