📄 fs.lst
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00000004 303C ADD R0,#0x3C
00000006 7800 LDRB R0,[R0,#0x0]
00000008 2803 CMP R0,#0x3
0000000A D113 BNE L_36 ; T=0x00000034
203: fs->FirstSectorRootDir = fs->volumeId.ReservedSectorCount +
0000000C 1C10 MOV R0,R2 ; fs
0000000E 7A80 LDRB R0,[R0,#0xA]
00000010 1C03 MOV R3,R0
00000012 1C10 MOV R0,R2 ; fs
00000014 6980 LDR R0,[R0,#0x18]
00000016 4343 MUL R3,R0
00000018 1C10 MOV R0,R2 ; fs
0000001A 8900 LDRH R0,[R0,#0x8]
0000001C 1C01 MOV R1,R0
0000001E 18C9 ADD R1,R3
00000020 1C10 MOV R0,R2 ; fs
00000022 69C0 LDR R0,[R0,#0x1C]
00000024 3802 SUB R0,#0x2
00000026 1C13 MOV R3,R2 ; fs
00000028 799B LDRB R3,[R3,#0x6]
0000002A 4358 MUL R0,R3
0000002C 1809 ADD R1,R0
0000002E 1C10 MOV R0,R2 ; fs
00000030 62C1 STR R1,[R0,#0x2C]
00000032 E00C B L_37 ; T=0x0000004E
00000034 L_36:
207: fs->FirstSectorRootDir = fs->volumeId.ReservedSectorCount +
00000034 1C10 MOV R0,R2 ; fs
00000036 8A00 LDRH R0,[R0,#0x10]
00000038 1C01 MOV R1,R0
0000003A 1C10 MOV R0,R2 ; fs
0000003C 7A80 LDRB R0,[R0,#0xA]
0000003E 1C03 MOV R3,R0
00000040 434B MUL R3,R1
00000042 1C10 MOV R0,R2 ; fs
00000044 8900 LDRH R0,[R0,#0x8]
00000046 1C01 MOV R1,R0
00000048 18C9 ADD R1,R3
0000004A 1C10 MOV R0,R2 ; fs
0000004C 62C1 STR R1,[R0,#0x2C]
0000004E L_37:
209: }
0000004E 4770 BX R14
00000050 ENDP ; 'fs_findFirstSectorRootDir?T'
ARM COMPILER V2.42, fs 27/03/06 10:45:50 PAGE 18
*** CODE SEGMENT '?PR?fs_initCurrentDir?T?fs':
212: void fs_initCurrentDir(FileSystem *fs)
00000000 B510 PUSH {R4,LR}
00000002 1C04 MOV R4,R0 ; fs
00000004 ---- Variable 'fs' assigned to Register 'R4' ----
214: fs->FirstClusterCurrentDir = fs_getFirstClusterRootDir(fs);
00000004 1C20 MOV R0,R4 ; fs
00000006 F7FF BL fs_getFirstClusterRootDir?T ; T=0x0001 (1)
00000008 FFFB BL fs_getFirstClusterRootDir?T ; T=0x0001 (2)
0000000A 1C21 MOV R1,R4 ; fs
0000000C 6308 STR R0,[R1,#0x30]
215: }
0000000E BC10 POP {R4}
00000010 BC08 POP {R3}
00000012 4718 BX R3
00000014 ENDP ; 'fs_initCurrentDir?T'
*** CODE SEGMENT '?PR?fs_clusterToSector?T?fs':
224: euint32 fs_clusterToSector(FileSystem *fs,euint32 cluster)
00000000 B510 PUSH {R4,LR}
00000002 1C0B MOV R3,R1 ; cluster
00000004 ---- Variable 'cluster' assigned to Register 'R3' ----
00000004 1C04 MOV R4,R0 ; fs
00000006 ---- Variable 'fs' assigned to Register 'R4' ----
00000006 ---- Variable 'base' assigned to Register 'R2' ----
225: {
00000006 ; SCOPE-START
228: if(fs->type==FAT32)
00000006 1C20 MOV R0,R4 ; fs
00000008 303C ADD R0,#0x3C
0000000A 7800 LDRB R0,[R0,#0x0]
0000000C 2803 CMP R0,#0x3
0000000E D10A BNE L_38 ; T=0x00000026
230: base=
00000010 1C20 MOV R0,R4 ; fs
00000012 7A80 LDRB R0,[R0,#0xA]
00000014 1C02 MOV R2,R0
00000016 1C20 MOV R0,R4 ; fs
00000018 6A41 LDR R1,[R0,#0x24]
0000001A 4351 MUL R1,R2
0000001C 1C20 MOV R0,R4 ; fs
0000001E 8900 LDRH R0,[R0,#0x8]
00000020 1C02 MOV R2,R0
00000022 1852 ADD R2,R1
233: }
00000024 E010 B L_39 ; T=0x00000048
00000026 L_38:
236: base=
00000026 1C20 MOV R0,R4 ; fs
00000028 7A80 LDRB R0,[R0,#0xA]
0000002A 1C02 MOV R2,R0
0000002C 1C20 MOV R0,R4 ; fs
0000002E 6A41 LDR R1,[R0,#0x24]
00000030 4351 MUL R1,R2
00000032 1C20 MOV R0,R4 ; fs
00000034 8900 LDRH R0,[R0,#0x8]
00000036 1C02 MOV R2,R0
00000038 1852 ADD R2,R1
0000003A 1C20 MOV R0,R4 ; fs
0000003C 8980 LDRH R0,[R0,#0xC]
0000003E 2110 MOV R1,#0x10
00000040 F7FF BL ?C?SDIV?T ; T=0x0001 (1) ; ?C?SDIV?T
00000042 FFDE BL ?C?SDIV?T ; T=0x0001 (2) ; ?C?SDIV?T
00000044 1C08 MOV R0,R1
00000046 1812 ADD R2,R0
240: }
00000048 L_39:
ARM COMPILER V2.42, fs 27/03/06 10:45:50 PAGE 19
241: return( base + (cluster-2)*fs->volumeId.SectorsPerCluster );
00000048 1C20 MOV R0,R4 ; fs
0000004A 7980 LDRB R0,[R0,#0x6]
0000004C 1C19 MOV R1,R3 ; cluster
0000004E 3902 SUB R1,#0x2
00000050 4341 MUL R1,R0
00000052 1C10 MOV R0,R2 ; base
00000054 1840 ADD R0,R1 ; base
00000056 ; SCOPE-END
242: }
00000056 BC10 POP {R4}
00000058 BC08 POP {R3}
0000005A 4718 BX R3
0000005C ENDP ; 'fs_clusterToSector?T'
*** CODE SEGMENT '?PR?fs_sectorToCluster?T?fs':
246: euint32 fs_sectorToCluster(FileSystem *fs,euint32 sector)
00000000 B570 PUSH {R4-R6,LR}
00000002 1C0E MOV R6,R1 ; sector
00000004 ---- Variable 'sector' assigned to Register 'R6' ----
00000004 1C05 MOV R5,R0 ; fs
00000006 ---- Variable 'fs' assigned to Register 'R5' ----
00000006 ---- Variable 'base' assigned to Register 'R2' ----
247: {
00000006 ; SCOPE-START
250: if(fs->type==FAT32)
00000006 1C28 MOV R0,R5 ; fs
00000008 303C ADD R0,#0x3C
0000000A 7800 LDRB R0,[R0,#0x0]
0000000C 2803 CMP R0,#0x3
0000000E D10A BNE L_41 ; T=0x00000026
252: base=
00000010 1C28 MOV R0,R5 ; fs
00000012 7A80 LDRB R0,[R0,#0xA]
00000014 1C02 MOV R2,R0
00000016 1C28 MOV R0,R5 ; fs
00000018 6A41 LDR R1,[R0,#0x24]
0000001A 4351 MUL R1,R2
0000001C 1C28 MOV R0,R5 ; fs
0000001E 8900 LDRH R0,[R0,#0x8]
00000020 1C02 MOV R2,R0
00000022 1852 ADD R2,R1
255: }
00000024 E010 B L_42 ; T=0x00000048
00000026 L_41:
258: base=
00000026 1C28 MOV R0,R5 ; fs
00000028 7A80 LDRB R0,[R0,#0xA]
0000002A 1C02 MOV R2,R0
0000002C 1C28 MOV R0,R5 ; fs
0000002E 6A41 LDR R1,[R0,#0x24]
00000030 4351 MUL R1,R2
00000032 1C28 MOV R0,R5 ; fs
00000034 8900 LDRH R0,[R0,#0x8]
00000036 1C02 MOV R2,R0
00000038 1852 ADD R2,R1
0000003A 1C28 MOV R0,R5 ; fs
0000003C 8980 LDRH R0,[R0,#0xC]
0000003E 2110 MOV R1,#0x10
00000040 F7FF BL ?C?SDIV?T ; T=0x0001 (1) ; ?C?SDIV?T
00000042 FFDE BL ?C?SDIV?T ; T=0x0001 (2) ; ?C?SDIV?T
00000044 1C08 MOV R0,R1
00000046 1812 ADD R2,R0
262: }
00000048 L_42:
263: return(((sector-base)-((sector-base)%fs->volumeId.SectorsPerCluster))/fs->volumeId.SectorsPerCluster+2 );
00000048 1C10 MOV R0,R2 ; base
ARM COMPILER V2.42, fs 27/03/06 10:45:50 PAGE 20
0000004A 1C34 MOV R4,R6 ; sector
0000004C 1A24 SUB R4,R0 ; sector
0000004E 1C28 MOV R0,R5 ; fs
00000050 7980 LDRB R0,[R0,#0x6]
00000052 1C03 MOV R3,R0
00000054 1C20 MOV R0,R4
00000056 1C19 MOV R1,R3
00000058 F7FF BL ?C?UDIV?T ; T=0x0001 (1) ; ?C?UDIV?T
0000005A FFD2 BL ?C?UDIV?T ; T=0x0001 (2) ; ?C?UDIV?T
0000005C 1C01 MOV R1,R0
0000005E 1A60 SUB R0,R4,R1
00000060 1C19 MOV R1,R3
00000062 F7FF BL ?C?UDIV?T ; T=0x0001 (1) ; ?C?UDIV?T
00000064 FFCD BL ?C?UDIV?T ; T=0x0001 (2) ; ?C?UDIV?T
00000066 1C08 MOV R0,R1
00000068 3002 ADD R0,#0x2
0000006A ; SCOPE-END
264: }
0000006A BC70 POP {R4-R6}
0000006C BC08 POP {R3}
0000006E 4718 BX R3
00000070 ENDP ; 'fs_sectorToCluster?T'
*** CODE SEGMENT '?PR?fs_getNextFreeCluster?T?fs':
275: euint32 fs_getNextFreeCluster(FileSystem *fs,euint32 startingcluster)
00000000 B570 PUSH {R4-R6,LR}
00000002 1C0D MOV R5,R1 ; startingcluster
00000004 ---- Variable 'startingcluster' assigned to Register 'R5' ----
00000004 1C04 MOV R4,R0 ; fs
00000006 ---- Variable 'fs' assigned to Register 'R4' ----
276: {
00000006 ; SCOPE-START
279: while(startingcluster<fs->DataClusterCount){
00000006 E00B B L_44 ; T=0x00000020
00000008 L_46:
280: r=fat_getNextClusterAddress(fs,startingcluster,0);
00000008 1C20 MOV R0,R4 ; fs
0000000A 1C29 MOV R1,R5 ; startingcluster
0000000C 2200 MOV R2,#0x0
0000000E F7FF BL fat_getNextClusterAddress?T ; T=0x0001 (1)
00000010 FFF7 BL fat_getNextClusterAddress?T ; T=0x0001 (2)
00000012 1C06 MOV R6,R0 ; r
00000014 ---- Variable 'r' assigned to Register 'R6' ----
281: if(r==0){
00000014 1C30 MOV R0,R6 ; r
00000016 2800 CMP R0,#0x0 ; r
00000018 D101 BNE L_48 ; T=0x0000001E
282: return(startingcluster);
0000001A 1C28 MOV R0,R5 ; startingcluster
0000001C E006 B L_49 ; T=0x0000002C
283: }
0000001E L_48:
284: startingcluster++;
0000001E 3501 ADD R5,#0x1
285: }
00000020 L_44:
00000020 1C20 MOV R0,R4 ; fs
00000022 6A02 LDR R2,[R0,#0x20]
00000024 1C28 MOV R0,R5 ; startingcluster
00000026 4290 CMP R0,R2 ; startingcluster
00000028 D3EE BCC L_46 ; T=0x00000008
286: return(0);
0000002A 2000 MOV R0,#0x0
0000002C ; SCOPE-END
287: }
0000002C L_49:
0000002C BC70 POP {R4-R6}
ARM COMPILER V2.42, fs 27/03/06 10:45:50 PAGE 21
0000002E BC08 POP {R3}
00000030 4718 BX R3
00000032 ENDP ; 'fs_getNextFreeCluster?T'
*** CODE SEGMENT '?PR?fs_giveFreeClusterHint?T?fs':
302: return(2); /* Now THIS is a hint ;) */
00000000 2002 MOV R0,#0x2
303: }
00000002 4770 BX R14
00000004 ENDP ; 'fs_giveFreeClusterHint?T'
*** CODE SEGMENT '?PR?fs_findFile?T?fs':
322: esint8 fs_findFile(FileSystem *fs,eint8* filename,FileLocation *loc,euint32 *lastDir)
00000000 B5F0 PUSH {R4-R7,LR}
00000002 1C1F MOV R7,R3 ; l⌨️ 快捷键说明
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