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libdskrc(5)			    Emulators			     libdskrc(5)

NAME
     libdskrc - Custom format definitions for LibDSK programs

DESCRIPTION
     The  libdskrc  file  contains  definitions of disk geometries, which can be
     used by the LibDsk utilities dsktrans(1) , dskid(1) and dskform(1)
     The file consists of one or more sections, each describing one disk layout.
     Each section begins with the format name in square brackets, and  continues
     until  the next section begins. Within each section are one or more entries
     of the form

     variable = value

     Anything after a semicolon or hash character is treated as  a  comment  and
     ignored. Blank lines are also ignored.

PARAMETERS
     For  each geometry, the entries listed below can be present. If not all the
     values are present, LibDsk will use default values from its "pcw180" format
     (40 tracks, 9 sectors, single-sided, MFM).

     description = DESC
	    The description of the format as  shown  by  (for  example)  dskform
	    --help.

     sides = TREATMENT
	    How  a  double-sided  disk is handled. This can either be alt (sides
	    alternate -- used by most PC-hosted operating systems), outback (use
	    side 0 tracks 0-79, then side 1 tracks 79-0 -- used by 144FEAT  CP/M
	    disks),  or  outout (use side 0 tracks 0-79, then side 1 tracks 0-79
	    -- used by some Acorn formats). If the disk  is  single-sided,  this
	    parameter can be omitted.

     cylinders = COUNT
	    Sets the number of cylinders (usually 40 or 80).

     heads = COUNT
	    Sets  the  number  of  heads  (usually 1 or 2 for single- or double-
	    sided).

     sectors = COUNT
	    Sets the number of sectors per track.

     secbase = NUMBER
	    Sets the first sector number on a track. Usually 1; some Acorn  for-
	    mats use 0.

     secsize = COUNT
	    Sets the size of a sector in bytes. This should be a power of 2.

     datarate = VALUE
	    Sets  the  rate at which the disk should be accessed. This is one of
	    HD (1.4Mb or 1.2Mb), DD (360k or 720k disc in 1.2Mb drive), SD (360k
	    or 720k disc in 1.4Mb, 720k or 360k drive), ED (2.8Mb).

     rwgap = VALUE
	    Set the read/write gap.

     fmtgap = VALUE
	    Set the format gap.

     fm = Y or N
	    Set the recording mode.  Y for FM, N for MFM.

     multitrack = Y or N
	    Set multitrack mode; this only affects attempts to read normal  data
	    from  tracks  containing  deleted data (or vice versa). Y for yes, N
	    for no.

     skipdeleted = Y or N
	    Skip deleted data when  searching  for  non-deleted  data  (or  vice
	    versa).  Y for yes, N for no.
FILES
     $HOME/.libdskrc
	    User-specified format list.

     /usr/local/share/LibDsk/libdskrc
	    System-wide format list.
SEE ALSO
     dsktrans(1) , dskform(1) , dskid(1)
AUTHOR
     John Elliott <seasip.webmaster@gmail.com>.

Version 1.2.1			 20 January 2006		     libdskrc(5)

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<https://man.freebsd.org/cgi/man.cgi?query=libdskrc&sektion=5&manpath=FreeBSD+Ports+15.1.quarterly>

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