Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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Int 13h Function 05h
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  Interrupt:   13h     Function:   05h
 
  Title:       Format Track
 
  Description:                                           [P] [AT] [PS/2]
 
     Initializes disk sector and track address fields on the specified
     track.
 
     Input                                 Output
 
     AH = 05h                              If function successful
     AL = Interleave                         Carry flag: clear
          (PC/XT fixed disks)                AH = 00h
     CH = Cylinder
     DH = Head                             If function unsuccessful
     DL = Drive                              Carry flag: set
        = 00h-7Fh floppy disk                AH = Status
        = 80h-FFh fixed disk                      See: Int 13h Function 01h
     ES:BX = segment:offset of address
             field list (except PC/XT
             fixed disk)
                                    -♦-