Int 31 Fn 0506  P - Dpmi 1.0+ - Get Page Attributes                        [E]

   AX = 0506h
   ESI = memory block handle
   EBX = offset in memory block of first page
   ECX = number of pages
   ES:EDX -> array of WORDs to hold page attributes (see #2827)

Return: CF clear if successful
       buffer filled
   CF set on error
       AX = error code (8001h,8023h,8025h) (see #2814)

Notes: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
   if EBX is not page-aligned, it will be rounded down

See Also: AX=0504h,AX=0507h,INT 21/AX=251Dh,INT 21/AX=EB00h

Bitfields for DPMI page attribute word:
Bit(s) Description (Table 2827)
 0-2   page type
   000 uncommitted
   001 committed
   010 mapped (see AX=0508h,AX=0509h)
   other currently unused
 3 page is read/write rather than read-only
 4 accessed/dirty bits supplied in bits 5 and 6
 5 page has been accessed (only valid if bit 4 set)
 6 page has been written (only valid if bit 4 set)
 7-15  reserved (0)