- This revision makes the BIOS code understand that there can be either   1 or 2 hard disks. - int13: check how many disks first, and only return an error if DL exceeds   the number of disks (ignoring bit 7 of course) - added drive number arg to get_hd_geometry, so that get_hd_geometry can   retrieve the numbers corresponding to hard drive 0 or 1 - hard_drive_post will now set up the EBDA area for drive 0 if it exists,   then for drive 1 if it exists.
- This revision makes the BIOS code understand that there can be either
  1 or 2 hard disks.
- int13: check how many disks first, and only return an error if DL exceeds
  the number of disks (ignoring bit 7 of course)
- added drive number arg to get_hd_geometry, so that get_hd_geometry can
  retrieve the numbers corresponding to hard drive 0 or 1
- hard_drive_post will now set up the EBDA area for drive 0 if it exists,
  then for drive 1 if it exists.

dbrashear/bochs,dbrashear/bochs,dariaphoebe/bochs,dbrashear/bochs,dbrashear/bochs,dbrashear/bochs,dariaphoebe/bochs,dariaphoebe/bochs,dariaphoebe/bochs,dariaphoebe/bochs