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Text File  |  1989-12-31  |  10KB  |  175 lines
  1. PRT_LINE ⑧x1k1                                  חלללללל†
  2. ãããããããããããããããããããããããããããããããããã´ DISK ´ãããããããããããããããããããããããããããããããããããããã
  3.                                   זלללללל¶
  4.         Single or Double Side   (0 and 1)
  5.         80 Tracks               (0 to 79)
  6.        ~6250 bytes/track        (Capacity 500,000 or 1,000,000 bytes/disk)
  7.         Speed ~300 rpm
  8.  
  9. םגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגאגגגגג™
  10. ø                          TRACK STRUCTURE                               ø TOS ø
  11. בגגגגגגגגגגגגגגגגאגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגדגגגגגœ
  12. ø START OF TRACK ø Gap               ~$4E ~$4E ... 32 mini ... ~$4E ~$4E ø  60 ø
  13. בגגגגגגגגגגגגגגגגדגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגדגגגגגœ
  14. ø SECTOR         ø Synchro   $00 $00 ... 8 mini ... $00 $00 ~$A1 $A1 $A1 ø  12 ø
  15. ø                ø Index Address Mark                                $FE ø     ø
  16. ø                ø Track number                                     0-79 ø     ø
  17. ø                ø Side number                                       0-1 ø     ø
  18. ø                ø Sector number                                     1-n ø 1-9 ø
  19. ø                ø Sector length in bytes                         0: 128 ø     ø
  20. ø                ø                                                1: 256 ø     ø
  21. ø                ø                                                2: 512 ø   2 ø
  22. ø                ø                                                3:1024 ø     ø
  23. ø                ø Cyclic Redundancy Checksum                    $SS $SS ø     ø
  24. ø                ø Gap                        $4E $4E ... 22 ... $4E $4E ø     ø
  25. ø                ø Synchro       $00 $00 ... 12 ... $00 $00 ~$A1 $A1 $A1 ø     ø
  26. ø                ø Data Address Mark                             $FB/$F8 ø $FB ø
  27. ø                ø Data         $XX $XX ... 128/256/512/1024 ... $XX $XX ø 512 ø
  28. ø                ø Cyclic Redundancy Checksum                    $SS $SS ø     ø
  29. ø                ø Gap               ~$4E ~$4E ... 24 mini ... ~$4E ~$4E ø  40 ø
  30. בגגגגגגגגגגגגגגגגדגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגדגגגגגœ
  31. ø ANOTHER SECTOR ø  etc...                                               ø   9 ø
  32. בגגגגגגגגגגגגגגגגדגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגדגגגגגœ
  33. ø END OF TRACK   ø Gap               ~$4E ~$4E ... 16 mini ... ~$4E ~$4E ø 664 ø
  34. ijגגגגגגגגגגגגגגגגIJגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגIJגגגגגך
  35.                             םגגגגגגגגגגגגגגגגגגגגגגגג™
  36.                             ø TOS SECTOR ASSIGNMENTS ø
  37.                םגגגגגגגגגגגגIJגגגגגגגגגגגאגגגגגגגגגגגגIJגאגגגגגגגגגגג™
  38.                ø        Physical Sector ø Track        ø  Single   ø
  39.                בגגגגגגגגגגגגגגגגגגגגגג™ ø  םגגגגגגגגגגגœ           ø
  40.                ø              Cluster ø ø  ø Side      ø Side Disk ø
  41.                בגגגגגגגגגגגגגגגגגג™   ø ø  ø םגגגגגגגגגדגגגגגגגגגגגœ
  42.                ø   Logical Sector ø   ø ø  ø ø Track   ø  Double   ø
  43.                בגגגגגגגגגגגגג™    ø   ø ø  ø ø  םגגגגגגœ           ø
  44.                ø Contents    ø    ø   ø ø  ø ø  ø Side ø Side Disk ø
  45.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגאגגגגIJגגגגגגגגגגגך
  46.                ø Boot sector ø   0ø  -ø1ø 0ø0ø 0ø0ø
  47.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  48.                ø FAT 1       ø   1ø  -ø2ø 0ø0ø 0ø0ø
  49.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  50.                ø FAT 1       ø   2ø  -ø3ø 0ø0ø 0ø0ø
  51.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  52.                ø FAT 1       ø   3ø  -ø4ø 0ø0ø 0ø0ø
  53.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  54.                ø FAT 1       ø   4ø  -ø5ø 0ø0ø 0ø0ø
  55.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  56.                ø FAT 1       ø   5ø  -ø6ø 0ø0ø 0ø0ø
  57.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  58.                ø FAT 2       ø   6ø  -ø7ø 0ø0ø 0ø0ø
  59.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  60.                ø FAT 2       ø   7ø  -ø8ø 0ø0ø 0ø0ø
  61.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  62.                ø FAT 2       ø   8ø  -ø9ø 0ø0ø 0ø0ø
  63.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  64.                ø FAT 2       ø   9ø  -ø1ø 1ø0ø 0ø1ø
  65.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  66.                ø FAT 2       ø  10ø  -ø2ø 1ø0ø 0ø1ø
  67.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  68.                ø Directory   ø  11ø  -ø3ø 1ø0ø 0ø1ø
  69.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  70.                ø Directory   ø  12ø  -ø4ø 1ø0ø 0ø1ø
  71.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  72.                ø Directory   ø  13ø  -ø5ø 1ø0ø 0ø1ø
  73.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  74.                ø Directory   ø  14ø  -ø6ø 1ø0ø 0ø1ø
  75.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  76.                ø Directory   ø  15ø  -ø7ø 1ø0ø 0ø1ø
  77.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  78.                ø Directory   ø  16ø  -ø8ø 1ø0ø 0ø1ø
  79.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  80.                ø Directory   ø  17ø  -ø9ø 1ø0ø 0ø1ø
  81.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  82.                ø Data        ø  18ø  2ø1ø 2ø0ø 1ø0ø
  83.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  84.                ø Data        ø  19ø  2ø2ø 2ø0ø 1ø0ø
  85.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  86.                ø Data        ø  20ø  3ø3ø 2ø0ø 1ø0ø
  87.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  88.                ø Data        ø  21ø  3ø4ø 2ø0ø 1ø0ø
  89.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  90.                ø Data        ø  22ø  4ø5ø 2ø0ø 1ø0ø
  91.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  92.                ø Data        ø  23ø  4ø6ø 2ø0ø 1ø0ø
  93.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  94.                ø Data        ø  24ø  5ø7ø 2ø0ø 1ø0ø
  95.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  96.                ø Data        ø  25ø  5ø8ø 2ø0ø 1ø0ø
  97.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  98.                ø Data        ø  26ø  6ø9ø 2ø0ø 1ø0ø
  99.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  100.                ø Data        ø  27ø  6ø1ø 3ø0ø 1ø1ø
  101.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  102.                ø Data        ø  28ø  7ø2ø 3ø0ø 1ø1ø
  103.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  104.                ø Data        ø  29ø  7ø3ø 3ø0ø 1ø1ø
  105.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  106.                ø Data        ø....ø...ø.ø..ø.ø..ø.ø
  107.                בגגגגגגגגגגגגגדגגגגדגגגדגדגגדגדגגדגœ
  108.                ø Data        ø 719ø352ø9ø79ø0ø39ø1ø
  109.                ø Data        ø1439ø712ø9ø  ø ø79ø1ø
  110.                ijגגגגגגגגגגגגגIJגגגגIJגגגIJגIJגגIJגIJגגIJגך
  111.                            םגגגגגגגגגגגגג™
  112.                            ø BOOT SECTOR ø
  113. גגגגגגגגגגגגגגגגגגגגגגגגגגגIJגגגגגגגגגגגגגIJגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגג
  114.  Byte#          Designation
  115. -------         --------------------------------------
  116.     0-1         0 or BRA.S address in this boot sector
  117.     2-7         Free text of 6 bytes
  118.    8-10         Disk serial number on 24 bits
  119.   11-12         #Bytes   per  sector   =     512 |                    (Low-High)
  120.      13         #Sectors per cluster   =       2 |
  121.   14-15         #Reserved sectors      =       1 |                    (Low-High)
  122.      16         #File Allocation Table =       2 |
  123.   17-18         #Elements in directory =     112 |  BIOS              (Low-High)
  124.   19-20         #Sectors               =720/1440 |  PARAMETER         (Low-High)
  125.      21         Media descriptor       = $F8/$F9 |  BLOCK
  126.   22-23         #Sectors per FAT       =       5 |                    (Low-High)
  127.   24-25         #Sectors per track     =       9 |                    (Low-High)
  128.   26-27         #Sides                 =     1/2 |                    (Low-High)
  129.   28-29         #Hidden sectors        =       0 |                    (Low-High)
  130.  30-509         -
  131. 510-511         2 Bytes for adjust checksum of 256 words of bootsector
  132.                 to reach $1234 for executable bootsector
  133.                       םגגגגגגגגגגגגגגגגגגגגגגג™
  134.                       ø FILE ALLOCATION TABLE ø
  135. גגגגגגגגגגגגגגגגגגגגגגIJגגגגגגגגגגגגגגגגגגגגגגגIJגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגג
  136.         12 bits (3 nibbles) for each cluster with this code:
  137.      $000:Free cluster
  138.      $FF7:Bad  cluster
  139.      $HML:Next cluster              (H:High nibble M:Middle nibble L:Low nibble)
  140.      $FFF:End  cluster
  141.  
  142. Logical:    -       -  Cl.2    Cl.3    Cl.4    Cl.5    Cl.6    Cl.7    ...
  143.          $FF7    $FFF  H2M2L2  H3M3L3  H4M4L4  H5M5L5  H6M6L6  H7M7L7
  144.  
  145. Physical: $F7 $FF $FF  M2L2 L3H2 H3M3  M4L4 L5H4 H5M5  M6L6 L7H6 H7M7  ...
  146.                            םגגגגגגגגגגג™
  147.                            ø DIRECTORY ø
  148. גגגגגגגגגגגגגגגגגגגגגגגגגגגIJגגגגגגגגגגגIJגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגגג
  149. There are 112 entries of 32 bytes each.
  150.  
  151.  byte#
  152.    0-7  Name                                         (   0:not used            )
  153.                                                      ("."0:root directory      )
  154.                                                      (". ":current subdirectory)
  155.                                                      ("..":parent  subdirectory)
  156.                                                      ( $E5:erased              )
  157.   8-10  Extension
  158.     11  Type           b5=archive bit
  159.                        b4=subdirectory
  160.                        b3=volume label
  161.                        b2=system file
  162.                        b1=hidden file
  163.                        b0=read only file
  164.  12-21   -
  165.  22-23  Hour      b15-b11=hours
  166.                    b10-b5=minuts
  167.                     b4-b0=seconds
  168.  
  169.  24-25  Date       b15-b9=year-1980
  170.                     b8-b5=month
  171.                     b4-b0=day
  172.  
  173.  26-27  Starting cluster                                              (Low-High)
  174.  28-31  Length                                              (Low-Midl-Midh-High)
  175.