DataMuseum.dk

Presents historical artifacts from the history of:

CR80 Hard and Floppy Disks

This is an automatic "excavation" of a thematic subset of
artifacts from Datamuseum.dk's BitArchive.

See our Wiki for more about CR80 Hard and Floppy Disks

Excavated with: AutoArchaeologist - Free & Open Source Software. 

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Index: ┃ B C D F i ┃

⟦da551051a⟧ ileave2

    Length: 256256 (0x3e900)
    Types: ileave2
    Notes: CR80_Amos_Fs

Derivation

└─⟦37f90b601⟧ Bits:30005190 8" CR80 Floppy CR80FD_0187 ( KPL/810915 DISKINIT DEV:FD00 SECTORS:500 FORMAT:NO VOL:DISKTEST filenames: DTBOOT (disktest) FMSBOOT (filesystem) )
    └─⟦this⟧

Namespace

bfd ok - - type length - nsect - areasz sector - - flags name artifact
0x0000 1 0 0 0xe 2560 0 5 0 1 1 0 65532 0x4801 BFD -
0x0002 1 0 0 0xc 512 0 1 0 0 7 0 65532 0x4801 BM ⟦68d211d77⟧
0x0003 1 15677 15677 0xc 34678 0 68 0 0 8 0 65532 0x4801 DTBOOT ⟦c2be2433c⟧
0x0004 1 17746 21076 0xc 55092 0 108 0 0 77 0 65532 0x4801 FMSBOOT ⟦fd0874723⟧
0x0001 1 0 0 0xa 512 0 1 0 1 5 0 65532 0x59e1 MD -

Disk picture

  Unclaimed
  Basic File Directory
  Home Block
  Index Block
  Symbolic File Directory
  ?

Disk View

0x00000…00200 HomeBlock {
0x00000…00200   label = »DISKTEST        «	// @0x0
0x00000…00200   bfdadr = 0x00000002	// @0x10
0x00000…00200   free_ent = 0x00000000	// @0x14
0x00000…00200   first_free = 0x00000000	// @0x18
0x00000…00200   sectors = 0x000001f4	// @0x1c
0x00000…00200   bst_size = 0x0000	// @0x20
0x00000…00200   asf_adr = 0x00000000	// @0x22
0x00000…00200   bst = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	// @0x26
0x00000…00200   bstsz = 0x0000	// @0x1b6
0x00000…00200   unused = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	// @0x1b8
0x00000…00200   boot_entry = 0x00000000	// @0x1ec
0x00000…00200   created = 000000000000	// @0x1f0
0x00000…00200   accessed = 000000000000	// @0x1f6
0x00000…00200   format = 0x0000	// @0x1fc
0x00000…00200   state = 0x0000	// @0x1fe
0x00000…00200 }
0x00200…00400 IndexBlock {pad00=0x00000000, secno=[0x00000002, 0x00000003, 0x00000004, 0x0000004c, 0x000000b9]}
0x00400…00600 BasicFileDesc {nbr=0x0000, ok=0x0001, bfd01=0x0000, bfd02=0x0000, type=0x000e, length=0x0a00, bfd05=0x0000, nsect=0x0005, bfd07=0x0000, areasz=0x0001, sector=0x0001, bfd0a=0x0000, bfd0b=0xfffc, flags=0x4801, bfd0d=0x0000, min3=0xfffd, bfd0f=0x0000}
0x00600…00800 BasicFileDesc {nbr=0x0001, ok=0x0001, bfd01=0x0000, bfd02=0x0000, type=0x000a, length=0x0200, bfd05=0x0000, nsect=0x0001, bfd07=0x0000, areasz=0x0001, sector=0x0005, bfd0a=0x0000, bfd0b=0xfffc, flags=0x59e1, bfd0d=0x0000, min3=0xfffd, bfd0f=0x0000}
0x00800…00a00 BasicFileDesc {nbr=0x0002, ok=0x0001, bfd01=0x0000, bfd02=0x0000, type=0x000c, length=0x0200, bfd05=0x0000, nsect=0x0001, bfd07=0x0000, areasz=0x0000, sector=0x0007, bfd0a=0x0000, bfd0b=0xfffc, flags=0x4801, bfd0d=0x0000, min3=0xfffd, bfd0f=0x0000}
0x00a00…00c00 IndexBlock {pad00=0x00000000, secno=[0x00000006]}
0x00c00…00c20 SymbolicFileDesc {valid=0x0001, fname=»BFD«, file=0x0000, sfd3=0x00000000, sfd4=0x00000000, sfd5=0x00000000}
0x00c20…00c40 SymbolicFileDesc {valid=0x0001, fname=»MD«, file=0x0001, sfd3=0x00000000, sfd4=0x00000000, sfd5=0x00000000}
0x00c40…00c60 SymbolicFileDesc {valid=0x0001, fname=»BM«, file=0x0002, sfd3=0x00000000, sfd4=0x00000000, sfd5=0x00000000}
0x00c60…00c80 SymbolicFileDesc {valid=0x0001, fname=»DTBOOT«, file=0x0003, sfd3=0x00000000, sfd4=0x00000000, sfd5=0x00000000}
0x00c80…00ca0 SymbolicFileDesc {valid=0x0001, fname=»FMSBOOT«, file=0x0004, sfd3=0x00000000, sfd4=0x00000000, sfd5=0x00000000}
0x00ca0…00cc0 SymbolicFileDesc {valid=0x0000, fname=»«, file=0x0000, sfd3=0x00000000, sfd4=0x00000000, sfd5=0x00000000}
         […0xa…]
0x00e00…00e80 DataSector[bfd#0x0002]
         […0x3…]
0x01000…01080 DataSector[bfd#0x0003]
         […0x10f…]
0x09800…09a00 BasicFileDesc {nbr=0x0003, ok=0x0001, bfd01=0x3d3d, bfd02=0x3d3d, type=0x000c, length=0x8776, bfd05=0x0000, nsect=0x0044, bfd07=0x0000, areasz=0x0000, sector=0x0008, bfd0a=0x0000, bfd0b=0xfffc, flags=0x4801, bfd0d=0x0000, min3=0x0019, bfd0f=0x5c07}
0x09a00…09a80 DataSector[bfd#0x0004]
         […0x1af…]
0x17200…17400 BasicFileDesc {nbr=0x0004, ok=0x0001, bfd01=0x4552, bfd02=0x5254, type=0x000c, length=0xd734, bfd05=0x0000, nsect=0x006c, bfd07=0x0000, areasz=0x0000, sector=0x004d, bfd0a=0x0000, bfd0b=0xfffc, flags=0x4801, bfd0d=0x0000, min3=0x0019, bfd0f=0x5c07}
0x17400…17480 UnusedSector 0x1a[128]
         […0x4e9…]

Less…

Reduced view