
  10/2022: v1.5

   - ensure that busmaster flag in PCI command register is set.
   - created .data segment with variables to separate them from code.
   - removed obsolete /P option.
   - fixed: under certain conditions, an IDE controllers might not have
     been detected.
 
  08/2022: v1.4

   - fixed: option /M was implemented in such a way that it became obligatory
     to set it to make the driver work.

  07/26/2011: v1.3

   - to determine the number of HDs in the system, an Int 13h, ah=08
     is issued. BIOS variable 0040:0075 is ignored.

  04/20/2011: v1.2

   - bugfix: HDs attached to the "native" secondary channel were
     ignored.

  12/28/2007: v1.1

   - bugfix: HDs attached to the "legacy" secondary channel didn't
     work (wrong DMA ports).
   - options /B, /M, /W and /P added, /UF option changed to /F.
   - now max. 8 HDs are supported.
   - usage of Jemm's new export 'MoveMemory' reduces interrupt latency,
     and also makes this version incompatible with Jemm v5.68 and below.

  12/03/2007: v1.0

   - initial. Ported from XDMA v3.3. Added support for both "legacy"
     and "native" IDE controllers.
