Int 21 Fn 251D  OP - Phar Lap 386/dos-extender Vmm V2.1c - Read Page-tabl  [E]

   AX = 251Dh
   BL = address type
       00h linear address
       ECX = linear address of page table entry to read
       01h pointer
       ES:ECX -> page table entry to read

Return: CF clear if successful
       EAX = contents of page table entry
   CF set on error
       EAX = error code
       09h invalid address or NOPAGE option set
       78h invalid under DPMI

Note:  this function is obsolete; use AX=252Bh/BH=09h instead

See Also: AX=251Eh,AX=252Bh/BH=09h,AX=EB00h,INT 31/AX=0506h