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  Interrupt:   26h
 
  Title:       Absolute Disk Write
 
  Description:
 
     Provides a direct linkage to the MS-DOS BIOS module to write data
     from memory to a logical disk sector.
 
     Input                                  Output
 
     For access to partitions               If function successful
     <= 32 megabytes                          Carry flag: clear
       AL = Drive number
            (0 = A, 1 = B,...)              If function unsuccessful
       CX = Number of sectors to write        Carry flag: set
       DX = Starting sector number            AX = Error code
       DS:BX = segment:offset of buffer       See: ◄Detail►
 
     For access to partitions
     > 32 megabytes [Version 4.0+]
       AL = Drive number
            (0 = A, 1 = B,...)
       CX = -1
       DS:BX = segment:offset of
               parameter block
                                    -♦-