! BIOS interrupt 67h function list.
! Reference: MS-DOS Extensions Quick Reference Guide by Ray Duncan
! Microsoft Press  ISBN #1-55615-212-4
!
67 EMS Services
!
40 get status
41 get page frame addr
42 get number of pages
43 alloc handle & pages
44 map exp memory page
45 rel handle & memory
46 get version
47 save page map
48 restore page map
49 reserved
4A reserved
4B get handle count
4C get handle pages
4D get pages all handls
4E page map functions
4F page map functions
50 map multiple pages
51 reallocate pages 
52 handle attribute
53 handle name
54 handle name funcs
55 map pages & jump
56 map pages & call
57 memory regions
58 mappable pages
59 get hardware config
5A alloc handle & page
5B register set funcs
5C EMM warm boot
5D EMM op sys funcs
!
! end of int 67h function list