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Disk Low Level IO
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structs.inc

structs.inc 2.5 KB
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  1. MAX_SECTORS_IN_TRACK = 200h
    2. 

  2. 

  3. BIGFATBOOTFSINFO STRUC
    4. 

  4.     bfFSInf_Sig               DD    ?
    5. 

  5.     bfFSInf_free_clus_cnt     DD    ?
    6. 

  6.     bfFSInf_next_free_clus    DD    ?
    7. 

  7.     bfFSInf_resvd             DD    3 DUP (?)
    8. 

  8. BIGFATBOOTFSINFO ENDS
    9. 

  9. 

  10. DIRENTRYLAY STRUC
    11. 

  11. 	abName					db 8 dup (?)
    12. 

  12. 	abExt					db 3 dup (?)
    13. 

  13. 	bAttr					db ?
    14. 

  14. 	rAccTime				dw ?
    15. 

  15. 	rCreTime				dw ?
    16. 

  16. 	rAccDate				dw ?
    17. 

  17. 	rCreDate				dw ?
    18. 

  18. 	wClstrNoHi				dw ?
    19. 

  19. 	rModTime				dw ?
    20. 

  20. 	rModDate				dw ?
    21. 

  21. 	wClstrNo				dw ?
    22. 

  22. 	lSize					dd ?
    23. 

  23. DIRENTRYLAY ENDS
    24. 

  24. 

  25. 

  26. A_BF_BPB    STRUC
    27. 

  27.     A_BF_BPB_BytesPerSector       DW    ?
    28. 

  28.     A_BF_BPB_SectorsPerCluster    DB    ?
    29. 

  29.     A_BF_BPB_ReservedSectors      DW    ?
    30. 

  30.     A_BF_BPB_NumberOfFATs         DB    ?
    31. 

  31.     A_BF_BPB_RootEntries          DW    ?
    32. 

  32.     A_BF_BPB_TotalSectors         DW    ?
    33. 

  33.     A_BF_BPB_MediaDescriptor      DB    ?
    34. 

  34.     A_BF_BPB_SectorsPerFAT        DW    ?
    35. 

  35.     A_BF_BPB_SectorsPerTrack      DW    ?
    36. 

  36.     A_BF_BPB_Heads                DW    ?
    37. 

  37.     A_BF_BPB_HiddenSectors        DW    ?
    38. 

  38.     A_BF_BPB_HiddenSectorsHigh    DW    ?
    39. 

  39.     A_BF_BPB_BigTotalSectors      DW    ?
    40. 

  40.     A_BF_BPB_BigTotalSectorsHigh  DW    ?
    41. 

  41.     A_BF_BPB_BigSectorsPerFat     DW    ?
    42. 

  42.     A_BF_BPB_BigSectorsPerFatHi   DW    ?
    43. 

  43.     A_BF_BPB_ExtFlags             DW    ?
    44. 

  44.     A_BF_BPB_FS_Version           DW    ?
    45. 

  45.     A_BF_BPB_RootDirStrtClus      DW    ?
    46. 

  46.     A_BF_BPB_RootDirStrtClusHi    DW    ?
    47. 

  47.     A_BF_BPB_FSInfoSec            DW    ?
    48. 

  48.     A_BF_BPB_BkUpBootSec          DW    ?
    49. 

  49.     A_BF_BPB_Reserved             DW    6 DUP (?)
    50. 

  50. A_BF_BPB    ENDS
    51. 

  51. 

  52. 

  53. PARAMBLOCK struc
    54. 

  54.     Operation db ? 
    55. 

  55.     NumLocks  db ? 
    56. 

  56. PARAMBLOCK ends
    57. 

  57. 

  58. A_SECTORTABLE struc
    59. 

  59. 	Res1	dw ?
    60. 

  60. 	Res2	dw ?
    61. 

  61. A_SECTORTABLE ends
    62. 

  62. 

  63. RWBLOCK STRUC
    64. 

  64.     rwSpecFunc      db  0  ;special functions (must be zero)
    65. 

  65.     rwHead          dw  ?  ;head to read/write
    66. 

  66.     rwCylinder      dw  ?  ;cylinder to read/write
    67. 

  67.     rwFirstSector   dw  ?  ;first sector to read/write
    68. 

  68.     rwSectors       dw  ?  ;number of sectors to read/write
    69. 

  69.     rwBuffer        dd  ?  ;address of buffer for read/write data
    70. 

  70. RWBLOCK ENDS
    71. 

  71. 

  72. EA_DEVICEPARAMETERS STRUC
    73. 

  73.     EDP_SPECIALFUNCTIONS     DB     ?
    74. 

  74.     EDP_DEVICETYPE           DB     ?
    75. 

  75.     EDP_DEVICEATTRIBUTES     DW     ?
    76. 

  76.     EDP_CYLINDERS            DW     ?
    77. 

  77.     EDP_MEDIATYPE            DB     ?
    78. 

  78.     EDP_BPB                  DB     SIZE A_BF_BPB DUP (?)
    79. 

  79.     EDP_RESERVED1            DB     32 DUP (?)
    80. 

  80.     EDP_TRACKTABLEENTRIES    DW     ?
    81. 

  81.     EDP_SECTORTABLE          DB MAX_SECTORS_IN_TRACK * SIZE A_SECTORTABLE DUP (?)
    82. 

  82. EA_DEVICEPARAMETERS ENDS
    83. 

  83.