DataMuseum.dk

Presents historical artifacts from the history of:

CP/M

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

See our Wiki for more about CP/M

Excavated with: AutoArchaeologist - Free & Open Source Software.


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Index: 5 C D I R T

⟦9a53fabaa⟧ Bits:30004540 SW1403-F RcKalk release 1.3, 5¼" Floppy Disk, CpmFSAuto, ImdContainer

    Length: 1261568 (0x134000)
    Description: Bits:30004540 SW1403-F RcKalk release 1.3
    Types: 5¼" Floppy Disk, CpmFSAuto, ImdContainer
    Notes: CP/M-fs(1024_2048_0x0_*1+1_2:0_76:1_32)

CpmFSAuto

Media:             [0, 0, 1] … [76, 1, 8] {1024: 1232}
Signature:         1024_2048_0x0_*1+1_2:0_76:1_32
Confidence score:  +11/-0 
Sector size:       1024
Block size:        2048
Directory entries: 32
Block number size: 16
Extent-mask:       0x00
Sector-interleave: 1, 2, 3, 4, 5, 6, 7, 8
Tracks:            (2, 0), (2, 1), (3, 0), (3, 1), (4, 0), (4, 1) […] (74, 0), (74, 1), (75, 0), (75, 1), (76, 0), (76, 1)
user bc length name artifact
0 0 4864 DEMO.NCD ⟦e42123c62⟧ TextFile
0 0 128 INSTJOB.SUB ⟦556fdb5de⟧ TextFile
0 0 81792 RCKALK.CMD ⟦152542549⟧
0 0 3968 RCKALK.NCH ⟦6a1de2b32⟧ TextFile

CP/M filesystem probe

Geometry: [[0, 0, 1], [76, 1, 8]]

First credible dirsect is: (2, 0, 1) at 0x8000 with 0x8 attribute records

Credible directory tracks:
   (2, 0)  0x8000 10-1-1-1-1-1-1-1
   (2, 1)  0xa000 1-1-1-1-1-1-1-1

Total credibility: 9

Block number width: ok16

   8     0    48    86    38  False
  16     0    48    93     0  False

Block Sizes:
    2048 0x00 +8 -0
     128 0x00 +1 -7
     256 0x00 +1 -7
     512 0x00 +1 -7
    1024 0x00 +1 -7
    4096 0x01 +1 -7
    8192 0x03 +1 -7
   16384 0x07 +1 -7
   32768 0x0f +1 -7
   65536 0x1f +1 -7

Candidate interleaves in order of directory credibility:

Penalty  Name         Order                                                                     Resulting dir order
      0  normal-1     (1-2-3-4-5-6-7-8)                                                         [9]   +11/-0
      0  normal-2     (1-3-5-7-2-4-6-8)                                                         [9]   +8/-2
      0  normal-3     (1-4-7-2-5-8-3-6)                                                         [9]   +10/-1
From the beastiarium: CpmFSCr16   +0/-0

File & label names found:
  0x0008000 (2, 0, 1)
    ProbeDirEnt {status=0x20, name=»SW1503 1.3 «, xl=0x31, bc=0x00, xh=0x00, rc=0x00, al=00000000000000005d0d10255d0d1025}
    ProbeDirEnt {status=0x00, name=»RCKALK  NCH«, xl=0x00, bc=0x00, xh=0x00, rc=0x1f, al=30003100000000000000000000000000}
    ProbeDirEnt {status=0x00, name=»DEMO    NCD«, xl=0x00, bc=0x00, xh=0x00, rc=0x26, al=32003300340000000000000000000000}
    ProbeDirEnt {status=0x00, name=»INSTJOB SUB«, xl=0x00, bc=0x00, xh=0x00, rc=0x01, al=35000000000000000000000000000000}
    ProbeDirEnt {status=0x00, name=»RCKALK  CMD«, xl=0x00, bc=0x00, xh=0x00, rc=0x80, al=36003700380039003a003b003c003d00}
    ProbeDirEnt {status=0x00, name=»RCKALK  CMD«, xl=0x01, bc=0x00, xh=0x00, rc=0x80, al=3e003f00400041004200430044004500}
    ProbeDirEnt {status=0x00, name=»RCKALK  CMD«, xl=0x02, bc=0x00, xh=0x00, rc=0x80, al=46004700480049004a004b004c004d00}
    ProbeDirEnt {status=0x00, name=»RCKALK  CMD«, xl=0x03, bc=0x00, xh=0x00, rc=0x80, al=4e004f00500051005200530054005500}
    ProbeDirEnt {status=0x00, name=»RCKALK  CMD«, xl=0x04, bc=0x00, xh=0x00, rc=0x7f, al=56005700580059005a005b005c005d00}
*  11 -   0 [1, 2, 3, 4, 5, 6, 7, 8]
+  10 -   1 [1, 4, 7, 2, 5, 8, 3, 6]
+   8 -   2 [1, 3, 5, 7, 2, 4, 6, 8]

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