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 B C I R T

⟦417707469⟧ Bits:30002879 SW1610 Personal Basic v1.2 for CP/M-86, 5¼" Floppy Disk, CpmFSAuto

    Length: 1261568 (0x134000)
    Description: Bits:30002879 SW1610 Personal Basic v1.2 for CP/M-86
    Types: 5¼" Floppy Disk, CpmFSAuto
    Notes: CP/M-fs(1024_2048_0x0_512_*1+1_2:0_76:1), CP/M-fs(1024_2048_0x0_512_*2+1+2_2:0_76:1), CP/M-fs(1024_2048_0x0_512_*3+1+2+3_2:0_76:1)

CpmFSAuto

Media:             [0, 0, 1] … [76, 1, 8] {1024: 1232}
Signature:         1024_2048_0x0_512_*1+1_2:0_76:1
Confidence score:  +6/-0
Sector size:       1024
Block size:        2048
Directory entries: 512
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 55168 BASIC.CMD ⟦b352a2e3e⟧
0 0 128 INSTJOB.SUB ⟦4ccd67656⟧ TextFile
0 0 1664 READ.ME ⟦1e8737c6f⟧ TextFile

CpmFSAuto

Media:             [0, 0, 1] … [76, 1, 8] {1024: 1232}
Signature:         1024_2048_0x0_512_*2+1+2_2:0_76:1
Confidence score:  +6/-0
Sector size:       1024
Block size:        2048
Directory entries: 512
Block number size: 16
Extent-mask:       0x00
Sector-interleave: 1, 3, 5, 7, 2, 4, 6, 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 55168 BASIC.CMD ⟦4426591e6⟧
0 0 128 INSTJOB.SUB ⟦4ccd67656⟧ TextFile
0 0 1664 READ.ME ⟦6d322c68b⟧

CpmFSAuto

Media:             [0, 0, 1] … [76, 1, 8] {1024: 1232}
Signature:         1024_2048_0x0_512_*3+1+2+3_2:0_76:1
Confidence score:  +6/-0
Sector size:       1024
Block size:        2048
Directory entries: 512
Block number size: 16
Extent-mask:       0x00
Sector-interleave: 1, 4, 7, 2, 5, 8, 3, 6
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 55168 BASIC.CMD ⟦077e60f9a⟧
0 0 128 INSTJOB.SUB ⟦4ccd67656⟧ TextFile
0 0 1664 READ.ME ⟦f37f34c59⟧

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 9-2-2-2-2-2-2-2
   (2, 1)  0xa000 2-2-2-2-2-2-2-2

Total credibility: 23

Block number width: ok16

   8     0     8    36    23  False
  16     0     8    36     0  False

Block Sizes:
    2048 0x00 +6 -0
    4096 0x01 +2 -4
    8192 0x03 +2 -4
   16384 0x07 +2 -4
   32768 0x0f +2 -4
   65536 0x1f +2 -4
     128 0x00 +1 -5
     256 0x00 +1 -5
     512 0x00 +1 -5
    1024 0x00 +1 -5

Candidate interleaves in order of directory credibility:

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

File & label names found:
  0x0008000 (2, 0, 1)
    ProbeDirEnt {status=0x20, name=»Pers. BASIC«, xl=0x31, bc=0x00, xh=0x00, rc=0x00, al=0000000000000000530a1422530a1422}
    ProbeDirEnt {status=0x00, name=»BASIC   CMD«, xl=0x00, bc=0x00, xh=0x00, rc=0x80, al=080009000a000b000c000d000e000f00}
    ProbeDirEnt {status=0x00, name=»BASIC   CMD«, xl=0x01, bc=0x00, xh=0x00, rc=0x80, al=10001100120013001400150016001700}
    ProbeDirEnt {status=0x00, name=»BASIC   CMD«, xl=0x02, bc=0x00, xh=0x00, rc=0x80, al=180019001a001b001c001d001e001f00}
    ProbeDirEnt {status=0x00, name=»BASIC   CMD«, xl=0x03, bc=0x00, xh=0x00, rc=0x2f, al=20002100220000000000000000000000}
    ProbeDirEnt {status=0x00, name=»READ    ME «, xl=0x00, bc=0x00, xh=0x00, rc=0x0d, al=23000000000000000000000000000000}
    ProbeDirEnt {status=0x00, name=»INSTJOB SUB«, xl=0x00, bc=0x00, xh=0x00, rc=0x01, al=24000000000000000000000000000000}
  0x0008400 (2, 0, 2)
  0x0008800 (2, 0, 3)
  0x0008c00 (2, 0, 4)
  0x0009000 (2, 0, 5)
  0x0009400 (2, 0, 6)
  0x0009800 (2, 0, 7)
  0x0009c00 (2, 0, 8)
  0x000a000 (2, 1, 1)
  0x000a400 (2, 1, 2)
  0x000a800 (2, 1, 3)
  0x000ac00 (2, 1, 4)
  0x000b000 (2, 1, 5)
  0x000b400 (2, 1, 6)
  0x000b800 (2, 1, 7)
  0x000bc00 (2, 1, 8)
+   6 -   0 <Tree 0x0-0x9a000-0x134000>
+   6 -   0 <Tree 0x0-0x9a000-0x134000>
+   6 -   0 <Tree 0x0-0x9a000-0x134000>

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