INT 21 Pu - Phar Lap 386/DOS-Extender - GET PAGE TYPES                          
	AX = 252Bh
	BH = 04h
	???
Return: ???
Note:	returns one word per page
SeeAlso: #01372


Bitfields for Phar Lap page information:
Bit(s)	Description	(Table 01372)
 7	mapped to read/write data file
 6	mapped to read-only data file
 5	swapped to disk
 4	locked
 3-0	page type
	0 unmapped
	1 allocated
	2 physical device page