have an effect on floppies or CD-ROMs, but would have on real hard drives that require CHS access. Changed the cylinder-to-regs conversion in BIOSDrive::ReadAt() (that one was actually correct) to make it look similar to the conversion in the opposite direction in get_drive_parameters(). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14377 a95241bf-73f2-0310-859d-f6bbb57e9c96