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📄 fatchangedirectory.lst

📁 C51实现的FAT32文件系统
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0070 E0                MOVX    A,@DPTR
0071 2F                ADD     A,R7
0072 F9                MOV     R1,A
0073 EA                MOV     A,R2
0074 35F0              ADDC    A,B
0076 FA                MOV     R2,A
0077 90001A            MOV     DPTR,#01AH
007A 120000      E     LCALL   ?C?ILDOPTR
007D FF                MOV     R7,A
007E AEF0              MOV     R6,B
0080 120000      E     LCALL   _MEMSwap16
0083 D0E0              POP     ACC
0085 4E                ORL     A,R6
0086 FE                MOV     R6,A
0087 D0E0              POP     ACC
0089 4F                ORL     A,R7
008A FF                MOV     R7,A
008B E4                CLR     A
008C FC                MOV     R4,A
008D FD                MOV     R5,A
;---- Variable 'cluster' assigned to Register 'R4/R5/R6/R7' ----
                                           ; SOURCE LINE # 17
008E EE                MOV     A,R6
008F 4F                ORL     A,R7
0090 6002              JZ      ?C0002
0092 800E              SJMP    ?C0009
0094         ?C0002:
0094 900000      E     MOV     DPTR,#FAT+05H
0097 E0                MOVX    A,@DPTR
0098 FC                MOV     R4,A
0099 A3                INC     DPTR
009A E0                MOVX    A,@DPTR
009B FD                MOV     R5,A
009C A3                INC     DPTR
009D E0                MOVX    A,@DPTR
009E FE                MOV     R6,A
009F A3                INC     DPTR
00A0 E0                MOVX    A,@DPTR
00A1 FF                MOV     R7,A
00A2         ?C0009:
00A2 900000      E     MOV     DPTR,#FAT
00A5 120000      E     LCALL   ?C?LSTXDATA
00A8         ?C0003:
                                           ; SOURCE LINE # 18
00A8 7F00              MOV     R7,#00H
C51 COMPILER V6.23a  FATCHANGEDIRECTORY                                                    12/24/2004 00:11:41 PAGE 14  

00AA 22                RET     
                                           ; SOURCE LINE # 19
00AB         ?C0001:
                                           ; SOURCE LINE # 20
00AB 900000      R     MOV     DPTR,#i
00AE E0                MOVX    A,@DPTR
00AF 75F020            MOV     B,#020H
00B2 A4                MUL     AB
00B3 FF                MOV     R7,A
00B4 900000      E     MOV     DPTR,#sDIR
00B7 E0                MOVX    A,@DPTR
00B8 FB                MOV     R3,A
00B9 A3                INC     DPTR
00BA E0                MOVX    A,@DPTR
00BB FA                MOV     R2,A
00BC A3                INC     DPTR
00BD E0                MOVX    A,@DPTR
00BE 2F                ADD     A,R7
00BF F9                MOV     R1,A
00C0 EA                MOV     A,R2
00C1 35F0              ADDC    A,B
00C3 FA                MOV     R2,A
00C4 90000B            MOV     DPTR,#0BH
00C7 120000      E     LCALL   ?C?CLDOPTR
00CA 20E403            JB      ACC.4,?C0006
00CD 7F02              MOV     R7,#02H
00CF 22                RET     
00D0         ?C0006:
                                           ; SOURCE LINE # 21
00D0 7F01              MOV     R7,#01H
                                           ; SOURCE LINE # 22
00D2         ?C0004:
00D2 22                RET     
             ; FUNCTION _FATChangeDirectory (END)

C51 COMPILER V6.23a  FATCHANGEDIRECTORY                                                    12/24/2004 00:11:41 PAGE 15  

NAME                                    CLASS   MSPACE  TYPE    OFFSET  SIZE
====                                    =====   ======  ====    ======  ====


FATClusterStr. . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  9
  SecOffset. . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  Sector . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0001H  4
  Cluster. . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0005H  4
DWORD. . . . . . . . . . . . . . . . .  TYPEDEF  -----  U_LONG   -----  4
FATTableStr. . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  516
  Sector . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0000H  4
  FAT. . . . . . . . . . . . . . . . .  MEMBER   -----  UNION    0004H  512
FATLDirStr . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  32
  Ord. . . . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  Name1. . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0001H  10
  Attr . . . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   000BH  1
  Type . . . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   000CH  1
  Chksum . . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   000DH  1
  Name2. . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    000EH  12
  FstClusLO. . . . . . . . . . . . . .  MEMBER   -----  U_INT    001AH  2
  Name3. . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    001CH  4
FCBStr . . . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  32
  FileName . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0000H  12
  Size . . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   000CH  4
  FirstCluster . . . . . . . . . . . .  MEMBER   -----  U_LONG   0010H  4
  LastCluster. . . . . . . . . . . . .  MEMBER   -----  U_LONG   0014H  4
  ClusSecCnt . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0018H  4
  ByteCnt. . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   001CH  4
FATUin . . . . . . . . . . . . . . . .  * TAG *  -----  UNION    -----  512
  F32. . . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0000H  512
  F16. . . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0000H  512
  F12. . . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0000H  512
FATUni . . . . . . . . . . . . . . . .  * TAG *  -----  UNION    -----  54
  F32. . . . . . . . . . . . . . . . .  MEMBER   -----  STRUCT   0000H  54
  F16. . . . . . . . . . . . . . . . .  MEMBER   -----  STRUCT   0000H  26
FATSDirStr . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  32
  Name . . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0000H  11
  Attr . . . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   000BH  1
  NTRes. . . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   000CH  1
  CrtTimeTenth . . . . . . . . . . . .  MEMBER   -----  U_CHAR   000DH  1
  CrtTime. . . . . . . . . . . . . . .  MEMBER   -----  U_INT    000EH  2
  CrtDate. . . . . . . . . . . . . . .  MEMBER   -----  U_INT    0010H  2
  LstAccDate . . . . . . . . . . . . .  MEMBER   -----  U_INT    0012H  2
  FstClusHI. . . . . . . . . . . . . .  MEMBER   -----  U_INT    0014H  2
  WrtTime. . . . . . . . . . . . . . .  MEMBER   -----  U_INT    0016H  2
  WrtDate. . . . . . . . . . . . . . .  MEMBER   -----  U_INT    0018H  2
  FstClusLO. . . . . . . . . . . . . .  MEMBER   -----  U_INT    001AH  2
  FileSize . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   001CH  4
HDDStr . . . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  2
  TotalPartitions. . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  CurrentPartition . . . . . . . . . .  MEMBER   -----  U_CHAR   0001H  1
IDEStr . . . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  8
  TotalDevices . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  CurrentDevice. . . . . . . . . . . .  MEMBER   -----  U_CHAR   0001H  1
  CurrentSector. . . . . . . . . . . .  MEMBER   -----  U_LONG   0002H  4
  BytesPerSec. . . . . . . . . . . . .  MEMBER   -----  U_INT    0006H  2
size_t . . . . . . . . . . . . . . . .  TYPEDEF  -----  U_INT    -----  2
FATStr . . . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  34
  CurrentDirectory . . . . . . . . . .  MEMBER   -----  U_LONG   0000H  4
  SecPerClus . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0004H  1
  RootClus . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0005H  4
C51 COMPILER V6.23a  FATCHANGEDIRECTORY                                                    12/24/2004 00:11:41 PAGE 16  

NAME                                    CLASS   MSPACE  TYPE    OFFSET  SIZE
====                                    =====   ======  ====    ======  ====


  RootSectors. . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0009H  1
  ClusSec. . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   000AH  4
  FATSz. . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   000EH  4
  FATSec . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0012H  4
  FSISec . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0016H  4
  FSIFreeCount . . . . . . . . . . . .  MEMBER   -----  U_LONG   001AH  4
  FSINxtFree . . . . . . . . . . . . .  MEMBER   -----  U_LONG   001EH  4
sDPTStr. . . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  9
  FATType. . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  LBABegin . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0001H  4
  CntSec . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0005H  4
CHAR . . . . . . . . . . . . . . . . .  TYPEDEF  -----  U_CHAR   -----  1
DPTStr . . . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  16
  BootFlag . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  CHSBegin . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0001H  3
  TypeCode . . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0004H  1
  CHSEnd . . . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0005H  3
  LBABegin . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0008H  4
  CntSec . . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   000CH  4
FAT32FSInfoStr . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  512
  LeadSig. . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0000H  4
  Reserved1. . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0004H  480
  StrucSig . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   01E4H  4
  FreeCount. . . . . . . . . . . . . .  MEMBER   -----  U_LONG   01E8H  4
  NxtFree. . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   01ECH  4
  Reserved2. . . . . . . . . . . . . .  MEMBER   -----  ARRAY    01F0H  12
  TrailSig . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   01FCH  4
BOOL . . . . . . . . . . . . . . . . .  TYPEDEF  DATA   BIT      -----  1
BootSecFAT32Str. . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  54
  BPB_FATSz32. . . . . . . . . . . . .  MEMBER   -----  U_LONG   0000H  4
  BPB_ExtFlags . . . . . . . . . . . .  MEMBER   -----  U_INT    0004H  2
  BPB_FSVer. . . . . . . . . . . . . .  MEMBER   -----  U_INT    0006H  2
  BPB_RootClus . . . . . . . . . . . .  MEMBER   -----  U_LONG   0008H  4
  BPB_FSInfo . . . . . . . . . . . . .  MEMBER   -----  U_INT    000CH  2
  BPB_BkBootSec. . . . . . . . . . . .  MEMBER   -----  U_INT    000EH  2
  BPB_Reserved . . . . . . . . . . . .  MEMBER   -----  ARRAY    0010H  12
  BS_DrvNum. . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   001CH  1
  BS_Reserved1 . . . . . . . . . . . .  MEMBER   -----  U_CHAR   001DH  1
  BS_BootSig . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   001EH  1
  BS_VolID . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   001FH  4
  BS_VolLab. . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0023H  11
  BS_FilSysType. . . . . . . . . . . .  MEMBER   -----  ARRAY    002EH  8
BootSecFAT16Str. . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  26
  BS_DrvNum. . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  BS_Reserved1 . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0001H  1
  BS_BootSig . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0002H  1
  BS_VolID . . . . . . . . . . . . . .  MEMBER   -----  U_LONG   0003H  4
  BS_VolLab. . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0007H  11
  BS_FilSysType. . . . . . . . . . . .  MEMBER   -----  ARRAY    0012H  8
BYTE . . . . . . . . . . . . . . . . .  TYPEDEF  -----  U_CHAR   -----  1
_FATFindDIREntry . . . . . . . . . . .  EXTERN   CODE   PROC     -----  -----
WORD . . . . . . . . . . . . . . . . .  TYPEDEF  -----  U_INT    -----  2
_FATChangeDirectory. . . . . . . . . .  PUBLIC   CODE   PROC     0000H  -----
  DirName. . . . . . . . . . . . . . .  * REG *  DATA   PTR      0001H  3
  cluster. . . . . . . . . . . . . . .  * REG *  DATA   U_LONG   0004H  4
  i. . . . . . . . . . . . . . . . . .  AUTO     XDATA  U_CHAR   0000H  1
_MEMSwap16 . . . . . . . . . . . . . .  EXTERN   CODE   PROC     -----  -----
C51 COMPILER V6.23a  FATCHANGEDIRECTORY                                                    12/24/2004 00:11:41 PAGE 17  

NAME                                    CLASS   MSPACE  TYPE    OFFSET  SIZE
====                                    =====   ======  ====    ======  ====


sDIR . . . . . . . . . . . . . . . . .  EXTERN   XDATA  PTR      -----  3
FAT. . . . . . . . . . . . . . . . . .  EXTERN   XDATA  STRUCT   -----  34
IDEDeviceStr . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  5
  DriverType . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0000H  1
  TotalSectors . . . . . . . . . . . .  MEMBER   -----  U_LONG   0001H  4
wchar_t. . . . . . . . . . . . . . . .  TYPEDEF  -----  CHAR     -----  1
BootSecStr . . . . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  90
  BS_jmpBoot . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0000H  3
  BS_OEMName . . . . . . . . . . . . .  MEMBER   -----  ARRAY    0003H  8
  BPB_BytesPerSec. . . . . . . . . . .  MEMBER   -----  U_INT    000BH  2
  BPB_SecPerClus . . . . . . . . . . .  MEMBER   -----  U_CHAR   000DH  1
  BPB_RsvdSecCnt . . . . . . . . . . .  MEMBER   -----  U_INT    000EH  2
  BPB_NumFATs. . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0010H  1
  BPB_RootEntCnt . . . . . . . . . . .  MEMBER   -----  U_INT    0011H  2
  BPB_TotSec16 . . . . . . . . . . . .  MEMBER   -----  U_INT    0013H  2
  BPB_Media. . . . . . . . . . . . . .  MEMBER   -----  U_CHAR   0015H  1
  BPB_FATSz16. . . . . . . . . . . . .  MEMBER   -----  U_INT    0016H  2
  BPB_SecPerTrk. . . . . . . . . . . .  MEMBER   -----  U_INT    0018H  2
  BPB_NumHeads . . . . . . . . . . . .  MEMBER   -----  U_INT    001AH  2
  BPB_HiddSec. . . . . . . . . . . . .  MEMBER   -----  U_LONG   001CH  4
  BPB_TotSec32 . . . . . . . . . . . .  MEMBER   -----  U_LONG   0020H  4
  FAT. . . . . . . . . . . . . . . . .  MEMBER   -----  UNION    0024H  54
_printf. . . . . . . . . . . . . . . .  EXTERN   CODE   PROC     -----  -----
StorageMediaStr. . . . . . . . . . . .  * TAG *  -----  STRUCT   -----  14
  BytesPerSec. . . . . . . . . . . . .  MEMBER   -----  U_INT    0000H  2
  TotalSectors . . . . . . . . . . . .  MEMBER   -----  U_LONG   0002H  4
  TotalPartitions. . . . . . . . . . .  MEMBER   -----  U_CHAR   0006H  1
  CurrentPartition . . . . . . . . . .  MEMBER   -----  U_CHAR   0007H  1
  ReadSector . . . . . . . . . . . . .  MEMBER   -----  PTR      0008H  3
  WriteSector. . . . . . . . . . . . .  MEMBER   -----  PTR      000BH  3


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    211    ----
   CONSTANT SIZE    =     10    ----
   XDATA SIZE       =   ----       1
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)

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