INT 67H 59xxH: Get Hardware Configuration

                                                     Compatibility: EMS 4.0+ 
 Expects: AH    59H
          AL    subfn: 00H=Get hardware Info
                           ES:DI = buffer to receive data
                       01H=Get unallocated raw page count
 Returns: AH    EMM status (0=successful)
          ES:DI (fn 5900H) buffer contains data (see below)
          BX    (fn 5901H) unallocated raw pages
          DX    (fn 5901H) total raw pages
    Info: This is designed for use by operating systems only and may be
          disabled at any time.

          It obtains hardware-related info and info on "raw pages" (that
          is, pages that are not 16K -- used on a rarely-seen EMS board).

    ES:DI (fn 5900H) on entry, this points to a 10-byte buffer.  On return,
          it is filled with data, formatted as:

           Offset Size Contents
           ▀▀▀▀▀▀ ▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
            +0      2  wRawPgParas size of a raw page, in 16-byte units
            +2      2  wAltRegSets number of extra mapping reg sets
            +4      2  wSaveSize   size of buffer needed for saving mapping
                                   context; also returned by INT 67H 4e03H
            +6      2  wDMAChnls   number reg sets to handle DMA
            +8      2  wDMAOddball 0=normal; 1=non-standard DMA handling
                   10              size of this structure

    BX,DX (fn 5901H) On nearly all hardware implementation of LIM-EMS,
          pages are exactly 16K.  One oddball allows for "raw" pages of
          smaller pages (submultiples of 16K).

          In most cases, these return the same as from INT 67H 4200H.

See Also: INT 67H: EMM Services
          Extended Memory Specification (XMS)
          Interrupts and BIOS Services