DataMuseum.dk

Presents historical artifacts from the history of:

RegneCentralen RC700 "Piccolo"

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

See our Wiki for more about RegneCentralen RC700 "Piccolo"

Excavated with: AutoArchaeologist - Free & Open Source Software. 

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Index: 5 C E I S

⟦8265f749f⟧ Bits:30003318 SW1727/I5 RC702 RcComal80 Distributionsdiskette Release 1.0, Bits:30003946 SW1727/D5 RC702 RcComal80 v1.0, 5¼" Floppy Disk, CpmFSAuto, ImdContainer

    Length: 328704 (0x50400)
    Description: Bits:30003946 SW1727/D5 RC702 RcComal80 v1.0
    Description: Bits:30003318 SW1727/I5 RC702 RcComal80 Distributionsdiskette Release 1.0
    Types: 5¼" Floppy Disk, CpmFSAuto, ImdContainer
    Notes: CpmFSAuto,512,2048,16,0x1,1<2,2:0-35:1

CpmFSAuto

Media:             [0, 0, 1] … [35, 1, 9] {128: 16, 256: 16, 512: 630}
Signature:         CpmFSAuto,512,2048,16,0x1,1<2,2:0-35:1
Confidence score:  +4/-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:            (2, 0), (2, 1), (3, 0), (3, 1), (4, 0), (4, 1) […] (33, 0), (33, 1), (34, 0), (34, 1), (35, 0), (35, 1)
user bc length name artifact
0 0 28672 COMAL80.COM ⟦587397edf⟧
0 0 9984 COMALCNV.COM ⟦b863b74a6⟧
0 0 2432 ERRMSG ⟦dddd344a2⟧
0 0 1280 SYSTEXT.C80 ⟦9864c1927⟧

CP/M filesystem probe

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

First credible dirsect is: (2, 0, 1) at 0x3c00 with 0x0 attribute records

Credible directory tracks:
   (2, 0)  0x3c00 5-1-1-1-1-1-1-0-1

Total credibility: 4

Block number width: ok8

   8     0     2    23     0  False
  16     0    20  5653     0   True

00:COMAL80 COM rc=0x0e0 c=0x00e ProbeDirEnt {status=0x00, name=»COMAL80 COM«, xl=0x01, bc=0x00, xh=0x00, rc=0x60, al=02030405060708090a0b0c0d0e0f0000}
00:COMALCNVCOM rc=0x04e c=0x005 ProbeDirEnt {status=0x00, name=»COMALCNVCOM«, xl=0x00, bc=0x00, xh=0x00, rc=0x4e, al=10111213140000000000000000000000}
00:ERRMSG      rc=0x013 c=0x002 ProbeDirEnt {status=0x00, name=»ERRMSG     «, xl=0x00, bc=0x00, xh=0x00, rc=0x13, al=15160000000000000000000000000000}
00:SYSTEXT C80 rc=0x00a c=0x001 ProbeDirEnt {status=0x00, name=»SYSTEXT C80«, xl=0x00, bc=0x00, xh=0x00, rc=0x0a, al=17000000000000000000000000000000}
Block Size 2048.00 2048 extent_mask = 0x1

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

File & label names found:
  0x0003c00 (2, 0, 1)
    ProbeDirEnt {status=0x00, name=»COMAL80 COM«, xl=0x01, bc=0x00, xh=0x00, rc=0x60, al=02030405060708090a0b0c0d0e0f0000}
    ProbeDirEnt {status=0x00, name=»COMALCNVCOM«, xl=0x00, bc=0x00, xh=0x00, rc=0x4e, al=10111213140000000000000000000000}
    ProbeDirEnt {status=0x00, name=»ERRMSG     «, xl=0x00, bc=0x00, xh=0x00, rc=0x13, al=15160000000000000000000000000000}
    ProbeDirEnt {status=0x00, name=»SYSTEXT C80«, xl=0x00, bc=0x00, xh=0x00, rc=0x0a, al=17000000000000000000000000000000}
+   4 -   0 <Tree 0x0-0x28200-0x50400>
+   4 -   3 <Tree 0x0-0x28200-0x50400>

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