diskdef ibm-3740
  seclen 128
  tracks 77
  sectrk 26
  blocksize 1024
  maxdir 64
  skew 6
  boottrk 2
  os 2.2
end

diskdef 4mb-hd
  seclen 128
  tracks 1024
  sectrk 32
  blocksize 2048
  maxdir 256
  skew 1
  boottrk 0
  os p2dos
end

diskdef pcw
  seclen 512
  tracks 40
  sectrk 9
  blocksize 1024
  maxdir 64
  skew 1
  boottrk 1
  os 3
end

diskdef pc1.2m
  seclen 512
  tracks 80
  # this format uses 15 sectors per track, but 30 per cylinder
  sectrk 30
  blocksize 4096
  maxdir 256
  skew 1
  boottrk 0
  os 3
end

# CP/M 86 on 1.44MB floppies
diskdef cpm86-144feat
  seclen 512
  tracks 160
  sectrk 18
  blocksize 4096
  maxdir 256
  skew 1
  boottrk 2
  os 3
end

# CP/M 86 on 720KB floppies
diskdef cpm86-720
  seclen 512
  tracks 160
  sectrk 9 
  blocksize 2048
  maxdir 256
  skew 1
  boottrk 2
  os 3
end

diskdef cf2dd
  seclen 512
  tracks 160
  sectrk 9
  blocksize 2048
  maxdir 256
  skew 1
  boottrk 1
  os 3
end

#amstrad: values are read from super block (special name hardcoded)

# Royal alphatronic
# setfdprm /dev/fd1 dd ssize=256 cyl=40 sect=16 head=2
diskdef alpha
  seclen 256
  tracks 40
  sectrk 32
  blocksize 2048
  maxdir 128
  skew 1
  boottrk 2
  os 2.2
end

# Apple II CP/M skew o Apple II DOS 3.3 skew
diskdef apple-do
  seclen 256
  tracks 35
  sectrk 16
  blocksize 1024
  maxdir 64
  skewtab 0,6,12,3,9,15,14,5,11,2,8,7,13,4,10,1
  boottrk 3
  os 2.2
end

# Apple II CP/M skew o Apple II PRODOS skew
diskdef apple-po
  seclen 256
  tracks 35
  sectrk 16
  blocksize 1024
  maxdir 64
  skewtab 0,9,3,12,6,15,1,10,4,13,7,8,2,11,5,14
  boottrk 3
  os 2.2
end

# MYZ80 hard drive (only works with libdsk, because it has a 256-byte header)
diskdef myz80
  seclen 1024
  tracks 64
  sectrk 128
  blocksize 4096
  maxdir 1024
  skew 1
  boottrk 0
  os 3
end

# Despite being Amstrad formats, CPC System and CPC Data don't have an Amstrad 
# superblock. You'll need to use libdsk to access them because the Linux 
# and Windows kernel drivers won't touch them.
diskdef cpcsys
  seclen 512
  tracks 40
  sectrk 9
  blocksize 1024
  maxdir 64
  skew 1
  boottrk 2
  os 3
end
diskdef cpcdata
  seclen 512
  tracks 40
  sectrk 9
  blocksize 1024
  maxdir 64
  skew 1
  boottrk 0
  os 3
end

# after being read in with no sector skew.
diskdef nigdos
  seclen 512
  # NigDos double sided disk format, 42 tracks * 2 sides
  tracks 84
  sectrk 10
  blocksize 2048
  maxdir 128
  skew 1
  boottrk 0
  # this format wastes half of the directory entry
  logicalextents 1
  os 3
end

diskdef epsqx10
  seclen 512
  tracks 40
  sectrk 20
  blocksize 2048
  maxdir 128
  skew 0
  boottrk 2
  os 2.2
end

diskdef ibm-8ss
  seclen 512
  tracks 40
  sectrk 8
  blocksize 1024
  maxdir 64
  skew 0
  boottrk 1
  os 2.2
end

diskdef ibm-8ds
  seclen 512
  tracks 40
  sectrk 8
  blocksize 1024
  maxdir 64
  skew 0
  boottrk 1
  os 2.2
end

diskdef electroglas
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 256
  skew 0
  boottrk 1
  os 3
end

# IBM CP/M-86
# setfdprm /dev/fd1 sect=8 dtr=1 hd ssize=512 tpi=48 head=1
diskdef ibmpc-514ss
   seclen 512
   tracks 40
   sectrk 8
   blocksize 1024
   maxdir 64
   skew 1
   boottrk 1
   os 2.2
end

# IBM CP/M-86
# setfdprm /dev/fd1 sect=8 dtr=1 hd ssize=512 tpi=48
diskdef ibmpc-514ds
   seclen 512
   tracks 80
   sectrk 8
   blocksize 2048
   maxdir 64
   skew 0
   boottrk 2
   os 2.2
end

diskdef p112
  seclen 512
  tracks 160
  sectrk 18
  blocksize 2048
  maxdir 256
  skew 1
  boottrk 2
  os 3
end

diskdef p112-old
  seclen 512
  tracks 160
  sectrk 18
  blocksize 2048
  maxdir 128
  skew 1
  boottrk 1
  os 3
end

diskdef gide-cfa
  seclen 512
  tracks 1000
  sectrk 16
  blocksize 4096
  maxdir 1024
  skew 0
  boottrk 2
  os 3
end

diskdef gide-cfb
  seclen 512
  tracks 1000
  sectrk 16
  blocksize 4096
  maxdir 1024
  skew 0
  boottrk 0
# Start of second partition
  offset 1000trk
  os 3
end

# AT&T/Olivetti Word Processor
diskdef attwp
   seclen 256
   tracks 80
   sectrk 32
   blocksize 2048
   maxdir 128
   boottrk 1
   logicalextents 1
   skewtab 0,2,4,6,8,10,12,14,1,3,5,7,9,11,13,15,16,18,20,22,24,26,28,30,17,19,21,23,25,27,29,31
   os 2
end

# Kaypro II
diskdef kpii
  seclen 512
  tracks 40
  sectrk 10
  blocksize 1024
  maxdir 64
  skew 0
  boottrk 1
  os 2.2
end

# Kayro IV
diskdef kpiv
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 64
  skew 0
  boottrk 1
  os 2.2
end

# setfdprm /dev/fd0 dd sect=10
diskdef interak
  seclen 512
  tracks 80
  sectrk 20
  blocksize 4096
  maxdir 256
  skew 1
  boottrk 2
  os 2.2
end

# Timex FDD3000 3"
diskdef fdd3000
  seclen 256
  tracks 40
  sectrk 16
  blocksize 1024
  maxdir 128
  boottrk 4
  os 2.2
  skew 7
end

# Timex FDD3000 3"
diskdef fdd3000_2
  seclen 256
  tracks 40
  sectrk 16
  blocksize 1024
  maxdir 128
  boottrk 2
  os 2.2
  skew 5
end

# Robotron 1715
diskdef 1715
  seclen 1024
  tracks 40
  sectrk 5
  blocksize 1024
  maxdir 64
  skew 0
  boottrk 3
  os 2.2
end

# Robotron 1715 with SCP3
diskdef 17153
  seclen 1024
  tracks 160
  sectrk 5
  blocksize 2048
  maxdir 128
  skew 0
  boottrk 4
  os 3
end

# Visual Technology Visual 1050 computer
diskdef v1050
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 128
  skew 0
  boottrk 2
  os 3
end

# Microbee 40 track 5.25" disks
diskdef microbee40
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 128
  skewtab 1,4,7,0,3,6,9,2,5,8
  boottrk 2
  os 2.2
end

diskdef dreamdisk40
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 128
  skewtab 1,4,7,0,3,6,9,2,5,8
  boottrk 2
  os 2.2
end

diskdef dreamdisk80
  seclen 512
  tracks 160
  sectrk 10
  blocksize 2048
  maxdir 256
  skewtab 1,4,7,0,3,6,9,2,5,8
  boottrk 2
  os 2.2
end

diskdef rc759
  seclen 1024
  tracks 154
  sectrk 8
  blocksize 2048
  maxdir 512
  boottrk 4
  os 3
end

# ICL Comet: 40 track 5.25" Single Sided
#
diskdef icl-comet-525ss
   seclen 512
   tracks 40
   sectrk 10
   blocksize 1024
   maxdir 64
   skewtab 0,3,6,9,2,5,8,1,4,7
   boottrk 2
   os 2.2
end

diskdef z80pack-hd
  seclen 128
  tracks 255
  sectrk 128
  blocksize 2048
  maxdir 1024
  skew 0
  boottrk 0
  os 2.2
end

diskdef z80pack-hdb
  seclen 128
  tracks 256
  sectrk 16384
  blocksize 16384
  maxdir 8192
  skew 0
  boottrk 0
  os 2.2
end

# Bondwell 12 and 14 disk images in IMD raw binary format
diskdef bw12
  seclen 256
  tracks 40
  sectrk 18
  blocksize 2048
  maxdir 64
  skew 1
  boottrk 2
  os 2.2
end

diskdef bw14
  seclen 256
  tracks 80
  sectrk 18
  blocksize 2048
  maxdir 64
  skew 1
  boottrk 2
  os 2.2
end

############################
# north star cp/m  disks
############################

#North Star floppy 360K

diskdef nsfd
  seclen 512
  tracks 70 
  sectrk 10 
  blocksize 2048
  maxdir 64
  skew 5  
  boottrk 2
  os 2.2   
end


#North Star CP/M Virtual-Disk file on Hard Disk
# prepared with allocation factor = 4
# as in "CR CPMB 4000 4"
# needs to be copied off hard drive before you can 
# work on it with cpmtools

diskdef nshd4
  seclen 512
  tracks 512
  sectrk 16 
  blocksize 4096
  maxdir 256
  skew 0  
  boottrk 0
  os 2.2   
end


#North Star CP/M Virtual-Disk file on Hard Disk
# prepared with allocation factor = 8
# as in "CR CPMB 6000 8"
# needs to be copied off hard drive before you can
# work on it with cpmtools

diskdef nshd8
  seclen 512
  tracks 1024
  sectrk 16 
  blocksize 8192
  maxdir 256
  skew 0  
  boottrk 0
  os 2.2   
end

# Northstar Micro-Disk System MDS-A-D 175
diskdef mdsad175
    seclen 512
    blocksize 1024
    tracks 35
    maxdir 64
    boottrk 2
    sectrk 10
    skew 5
    os 2.2
end


# Northstar Micro-Disk System MDS-A-D 350
diskdef mdsad350
   seclen 512
   blocksize 2048
   tracks 70
   maxdir 64
   boottrk 2
   sectrk 10
   skew 5
   os 2.2
end


# Osborne 1
diskdef osborne1
   seclen 1024
   tracks 40
   sectrk 5
   blocksize 1024
   maxdir 64
   boottrk 3
   os 2
end

# Osborne Nuevo/Vixen/4
diskdef osborne4
   seclen 1024
   tracks 80
   sectrk 5
   blocksize 2048
   maxdir 128
   skew 2
   boottrk 2
   os 2
end

# Lobo Max-80 8" CP/M 2
diskdef lobo2
  seclen 256
  tracks 77
  sectrk 30
  blocksize 2048
  maxdir 64
  skew 0
  boottrk 2
  os 2.2
end

#Lobo Max-80 8" CP/M 3
diskdef lobo3
  seclen 512
  tracks 77
  sectrk 17
  blocksize 2048
  maxdir 64
  skew 0
  boottrk 2
  os 3
end

# PRO CP/M RZ50 DZ format, experimental
diskdef dec_pro
  seclen 512
  tracks 80
  sectrk 10
  blocksize 2048
  maxdir 128
  skew 2
  boottrk 2
  os 2.2
end