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: C D H I M P T

⟦e5efac989⟧ CpmFSAuto

    Length: 358144 (0x57700)
    Types: CpmFSAuto
    Notes: CP/M-fs(512_2048_0x1_*1+1_1:0_34:0_16), MZ-80B, Probe-CPM

Derivation

└─⟦ee6c93f63⟧ Bits:30009434 50004973
    └─⟦this⟧

CpmFSAuto

Media:             [0, 0, 1] … [34, 0, 20] {256: 1, 512: 699}
Signature:         512_2048_0x1_*1+1_1:0_34:0_16
Confidence score:  +10/-0 
Sector size:       512
Block size:        2048
Directory entries: 16
Block number size: 8
Extent-mask:       0x01
Sector-interleave: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Tracks:            (1, 0), (2, 0), (3, 0), (4, 0), (5, 0), (6, 0) […] (29, 0), (30, 0), (31, 0), (32, 0), (33, 0), (34, 0)
user bc length name artifact
0 0 7040 DHEADER.PRN ⟦e5a80677e⟧ TextFile
0 0 6528 DOCTOR.COM ⟦a7f23486f⟧
0 0 25344 HELP ⟦bc9288ec1⟧ TextFile
0 0 9216 HELP.COM ⟦cfca3b99e⟧
0 0 15360 INSTALL.COM ⟦607b29689⟧
0 0 7424 PIP.COM ⟦7f9e12a92⟧

CP/M filesystem probe

Geometry: [[0, 0, 1], [34, 0, 20]]

First credible dirsect is: (1, 0, 1) at 0x2700 with 0x0 attribute records

Credible directory tracks:
   (1, 0)  0x2700 7-1-1-1-1-1-1-1-0-0-0-0-0-0-0-0-0-0-0-0

Total credibility: 6

Block number width: ok8

   8     0     2    39     0  False
  16     0    34  9765     0   True

Block Sizes:
    2048 0x01 +6 -0
     128 0x00 +0 -6
     256 0x00 +0 -6
     512 0x00 +0 -6
    1024 0x00 +0 -6
    4096 0x03 +0 -6
    8192 0x07 +0 -6
   16384 0x0f +0 -6
   32768 0x1f +0 -6
   65536 0x3f +0 -6

Candidate interleaves in order of directory credibility:

Penalty  Name         Order                                                                     Resulting dir order
      0  normal-1     (1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20)                      [6]   +10/-0
      0  normal-2     (1-3-5-7-9-11-13-15-17-19-2-4-6-8-10-12-14-16-18-20)                      [6]   +6/-12
      0  normal-3     (1-4-7-10-13-16-19-2-5-8-11-14-17-20-3-6-9-12-15-18)                      [6]   +6/-14
      0  normal-4     (1-5-9-13-17-2-6-10-14-18-3-7-11-15-19-4-8-12-16-20)                      [6]   +6/-13
      0  normal-5     (1-6-11-16-2-7-12-17-3-8-13-18-4-9-14-19-5-10-15-20)                      [6]   +6/-12
      0  normal-6     (1-7-13-19-5-11-17-3-9-15-2-8-14-20-6-12-18-4-10-16)                      [6]   +8/-13
      0  normal-7     (1-8-15-2-9-16-3-10-17-4-11-18-5-12-19-6-13-20-7-14)                      [6]   +6/-12
      0  normal-8     (1-9-17-5-13-2-10-18-6-14-3-11-19-7-15-4-12-20-8-16)                      [6]   +6/-13
      0  normal-9     (1-10-19-8-17-6-15-4-13-2-11-20-9-18-7-16-5-14-3-12)                      [6]   +6/-14

File & label names found:
  0x0002700 (1, 0, 1)
    ProbeDirEnt {status=0x00, name=»PIP     COM«, xl=0x00, bc=0x00, xh=0x00, rc=0x3a, al=02030405000000000000000000000000}
    ProbeDirEnt {status=0x00, name=»DOCTOR  COM«, xl=0x00, bc=0x00, xh=0x00, rc=0x33, al=06070809000000000000000000000000}
    ProbeDirEnt {status=0x00, name=»INSTALL COM«, xl=0x00, bc=0x00, xh=0x00, rc=0x78, al=0a0b0c0d0e0f10110000000000000000}
    ProbeDirEnt {status=0x00, name=»DHEADER PRN«, xl=0x00, bc=0x00, xh=0x00, rc=0x37, al=12131415000000000000000000000000}
    ProbeDirEnt {status=0x00, name=»HELP       «, xl=0x01, bc=0x00, xh=0x00, rc=0x46, al=161718191a1b1c1d1e1f202122000000}
    ProbeDirEnt {status=0x00, name=»HELP    COM«, xl=0x00, bc=0x00, xh=0x00, rc=0x48, al=23242526270000000000000000000000}
*  10 -   0 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
+   8 -  13 [1, 7, 13, 19, 5, 11, 17, 3, 9, 15, 2, 8, 14, 20, 6, 12, 18, 4, 10, 16]
+   6 -  12 [1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
+   6 -  12 [1, 6, 11, 16, 2, 7, 12, 17, 3, 8, 13, 18, 4, 9, 14, 19, 5, 10, 15, 20]
+   6 -  12 [1, 8, 15, 2, 9, 16, 3, 10, 17, 4, 11, 18, 5, 12, 19, 6, 13, 20, 7, 14]
+   6 -  13 [1, 5, 9, 13, 17, 2, 6, 10, 14, 18, 3, 7, 11, 15, 19, 4, 8, 12, 16, 20]
+   6 -  13 [1, 9, 17, 5, 13, 2, 10, 18, 6, 14, 3, 11, 19, 7, 15, 4, 12, 20, 8, 16]
+   6 -  14 [1, 4, 7, 10, 13, 16, 19, 2, 5, 8, 11, 14, 17, 20, 3, 6, 9, 12, 15, 18]
+   6 -  14 [1, 10, 19, 8, 17, 6, 15, 4, 13, 2, 11, 20, 9, 18, 7, 16, 5, 14, 3, 12]

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