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. 

top - metrics - download
Index: 5 C I S c

⟦ccdf64a75⟧ Bits:30003572 RC700 COMAL-80 rev. 1.07, 5¼" Floppy Disk, CpmFSAuto, ImdContainer

    Length: 328704 (0x50400)
    Description: Bits:30003572 RC700 COMAL-80 rev. 1.07
    Types: 5¼" Floppy Disk, CpmFSAuto, ImdContainer
    Notes: CpmFSAuto_512_2048_0x1_16_*2+1+2_3:0_35:1

CpmFSAuto

Media:             [0, 0, 1] … [35, 1, 9] {128: 16, 256: 16, 512: 630}
Signature:         CpmFSAuto_512_2048_0x1_16_*2+1+2_3:0_35:1
Confidence score:  +2/-0
Sector size:       512
Block size:        2048
Directory entries: 16
Block number size: 8
Extent-mask:       0x01
Sector-interleave: 1, 3, 5, 7, 9, 2, 4, 6, 8
Tracks:            (3, 0), (3, 1), (4, 0), (4, 1), (5, 0), (5, 1) […] (33, 0), (33, 1), (34, 0), (34, 1), (35, 0), (35, 1)
user bc length name artifact
0 0 29824 SYSTEM ⟦62fce745b⟧
0 0 384 convtab ⟦7905282dc⟧

CP/M filesystem probe

Geometry: [[0, 0, 1], [35, 1, 9]]

First credible dirsect is: (3, 0, 1) at 0x6000 with 0x0 attribute records

Credible directory tracks:
   (3, 0)  0x6000 3-1-1-1-1-1-1-0-1

Total credibility: 2

Block number width: ok8

   8     0     2    17     0  False
  16     0     2  4111     0   True

Block Sizes:
    2048 0x01 +2 -0
     512 0x00 +1 -1
    1024 0x00 +1 -1
    4096 0x03 +1 -1
    8192 0x07 +1 -1
   16384 0x0f +1 -1
   32768 0x1f +1 -1
   65536 0x3f +1 -1
     128 0x00 +0 -2
     256 0x00 +0 -2

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)                                                       [2]   +2/-3
      0  normal-2     (1-3-5-7-9-2-4-6-8)                                                       [2]   +2/-0
      0  normal-3     (1-4-7-2-5-8-3-6-9)                                                       [2]   +2/-5

File & label names found:
  0x0006000 (3, 0, 1)
    ProbeDirEnt {status=0x00, name=»SYSTEM     «, xl=0x01, bc=0x00, xh=0x00, rc=0x69, al=030405060708090a0b0c0d0e0f101100}
    ProbeDirEnt {status=0x00, name=»convtab    «, xl=0x00, bc=0x00, xh=0x00, rc=0x03, al=02000000000000000000000000000000}
+   2 -   0 <Tree 0x0-0x28200-0x50400>
+   2 -   3 <Tree 0x0-0x28200-0x50400>

Full view