📄 fat32getpartlongname.lst
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99 =2 {
100 =2 BYTE BootFlag;
101 =2 BYTE CHSBegin[3];
102 =2 BYTE TypeCode;
C51 COMPILER V8.08 FAT32GETPARTLONGNAME 06/01/2008 16:20:59 PAGE 9
103 =2 BYTE CHSEnd[3];
104 =2 DWORD LBABegin;
105 =2 DWORD CntSec;
106 =2 };
107 =2
108 =2 struct sDPTStr //简化的分区表
109 =2 {
110 =2 BYTE TypeCode;
111 =2 DWORD LBABegin;
112 =2 DWORD CntSec;
113 =2 };
114 =2
115 =2 struct FAT32FSInfoStr //FAT32扩展信息结构
116 =2 {
117 =2 DWORD LeadSig;
118 =2 BYTE Reserved1[480];
119 =2 DWORD StrucSig;
120 =2 DWORD FreeCount;
121 =2 DWORD NxtFree;
122 =2 BYTE Reserved2[12];
123 =2 DWORD TrailSig;
124 =2 };
125 =2
126 =2 struct FAT32SDirStr //FAT目录结构 短文件名
127 =2 {
128 =2 CHAR Name[11];
129 =2 BYTE Attr;
130 =2 BYTE NTRes;
131 =2 BYTE CrtTimeTenth;
132 =2 WORD CrtTime;
133 =2 WORD CrtDate;
134 =2 WORD LstAccDate;
135 =2 WORD FstClusHI;
136 =2 WORD WrtTime;
137 =2 WORD WrtDate;
138 =2 WORD FstClusLO;
139 =2 DWORD FileSize;
140 =2 };
141 =2
142 =2 struct FAT32LDirStr //FAT目录结构 长文件名
143 =2 {
144 =2 BYTE Ord;
145 =2 BYTE Name1[10];
146 =2 BYTE Attr;
147 =2 BYTE Type;
148 =2 BYTE Chksum;
149 =2 BYTE Name2[12];
150 =2 WORD FstClusLO;
151 =2 BYTE Name3[4];
152 =2 };
153 =2
154 =2 struct FAT32Str //FAT32参数表
155 =2 {
156 =2 BYTE ClusSecCnt; //当前簇扇区计数
157 =2 DWORD CurrentDirectory; //当前目录入口（簇号）
158 =2 BYTE SecPerClus; //每簇扇区数 1 2 4 8 16 32 64 128
159 =2 WORD RsvdSecCnt; //保留扇区数 0x20
160 =2 BYTE NumFATs; //FAT表个数 2
161 =2 DWORD RootClus; //根目录开始的簇
162 =2 DWORD ClusSec; //簇开始的扇区
163 =2 DWORD FATSz; //FAT表大小（扇区）
164 =2 DWORD FATSec; //FAT表开始扇区
C51 COMPILER V8.08 FAT32GETPARTLONGNAME 06/01/2008 16:20:59 PAGE 10
165 =2 DWORD FSISec; //FSI所在扇区
166 =2 DWORD FSIFreeCount; //空闲簇数
167 =2 DWORD FSINxtFree; //空闲簇搜索指针
168 =2 };
169 =2
170 =2 struct FCBStr
171 =2 {
172 =2 CHAR FileName[12]; //文件名
173 =2 DWORD Size; //文件大小
174 =2 DWORD FirstCluster; //第一个簇
175 =2 DWORD LastCluster; //最近一次读到的簇号
176 =2 DWORD ClusSecCnt; //当前簇扇区计数
177 =2 DWORD ByteCnt; //当前字节计数
178 =2 };
179 =2
180 =2 struct FATStr
181 =2 {
182 =2 DWORD Sector;
183 =2 DWORD FAT[128];
184 =2 };
185 =2
186 =2 #ifndef _LIBRARY_DEFINE
=2 xdata BYTE DiskBuffer[512];
=2
=2 xdata struct sDPTStr sDPT[4];
=2 xdata struct FAT32Str FAT32;
=2 xdata struct FCBStr FCB[FAT32_MAX_FCB];
=2 xdata CHAR LongFileName[256];
=2 xdata struct FATStr FAT;
=2 xdata struct DPTStr *DPT; //分区表结构指针
=2 xdata struct BootSecStr *BOOTSEC; //引导扇区结构指针
=2 xdata struct FAT32FSInfoStr *FSI; //FAT32扩展信息
=2 xdata struct FAT32SDirStr *sDIR; //FAT目录结构指针
=2 xdata struct FAT32LDirStr *lDIR; //FAT目录结构指针
=2 #endif
200 =2 #endif
201 =2
202 =2 extern xdata BYTE DiskBuffer[512];
203 =2
204 =2 extern xdata struct sDPTStr sDPT[4];
205 =2 extern xdata struct FAT32Str FAT32;
206 =2 extern xdata struct FCBStr FCB[FAT32_MAX_FCB];
207 =2 extern xdata CHAR LongFileName[256];
208 =2 extern xdata struct FATStr FAT;
209 =2 extern xdata struct DPTStr *DPT; //分区表结构指针
210 =2 extern xdata struct BootSecStr *BOOTSEC; //引导扇区结构指针
211 =2 extern xdata struct FAT32FSInfoStr *FSI; //FAT32扩展信息
212 =2 extern xdata struct FAT32SDirStr *sDIR; //FAT目录结构指针
213 =2 extern xdata struct FAT32LDirStr *lDIR; //FAT目录结构指针
214 =2
215 =2 extern void FAT32Init(void);
216 =2 extern BYTE FAT32MountPartition(void);
217 =2 extern BYTE FAT32MountVolumeID(BYTE Partition);
218 =2 extern BYTE FAT32GetDirName(WORD SecNum);
219 =2 extern void FAT32GetPartLongName(struct FAT32LDirStr *ldp,CHAR *name);
220 =2 extern DWORD FAT32DiskSize(void);
221 =2 extern DWORD FAT32DiskFreeSize(void);
222 =2 extern BYTE FAT32FindDIREntry(CHAR *DirName);
223 =2 extern void FAT32ReadCluster(DWORD *Cluster);
224 =2 extern BYTE FAT32ChangeDirectory(CHAR *DirName);
225 =2 extern BYTE FAT32ListDirectory(void);
226 =2 extern DWORD FAT32NextCluster(DWORD CurrentCluster);
C51 COMPILER V8.08 FAT32GETPARTLONGNAME 06/01/2008 16:20:59 PAGE 11
227 =2 extern BYTE FAT32OpenFile(CHAR *filename);
228 =2 extern void FAT32CloseFile(BYTE fp);
229 =2 extern WORD FAT32ReadFile(BYTE fp);
11 =1
12 =1
3 #endif
4
5 void FAT32GetPartLongName(struct FAT32LDirStr *ldp,CHAR *name);
6
7 void FAT32GetPartLongName(struct FAT32LDirStr *ldp,CHAR *name)
8 {
9 1 register BYTE i,j;
10 1
11 1 j=0;
12 1 for(i=0;i<10;i++)
13 1 name[j++]=ldp->Name1[i];
14 1 for(i=0;i<12;i++)
15 1 name[j++]=ldp->Name2[i];
16 1 for(i=0;i<4;i++)
17 1 name[j++]=ldp->Name3[i];
18 1 Uni2GB(name,26);
19 1 name[26]=0;
20 1 }
C51 COMPILER V8.08 FAT32GETPARTLONGNAME 06/01/2008 16:20:59 PAGE 12
ASSEMBLY LISTING OF GENERATED OBJECT CODE
; FUNCTION _FAT32GetPartLongName (BEGIN)
; SOURCE LINE # 7
0000 900000 R MOV DPTR,#ldp
0003 EB MOV A,R3
0004 F0 MOVX @DPTR,A
0005 A3 INC DPTR
0006 EA MOV A,R2
0007 F0 MOVX @DPTR,A
0008 A3 INC DPTR
0009 E9 MOV A,R1
000A F0 MOVX @DPTR,A
; SOURCE LINE # 8
; SOURCE LINE # 11
;---- Variable 'j' assigned to Register 'R7' ----
000B E4 CLR A
000C FF MOV R7,A
; SOURCE LINE # 12
;---- Variable 'i' assigned to Register 'R6' ----
000D FE MOV R6,A
000E ?C0001:
; SOURCE LINE # 13
000E 900000 R MOV DPTR,#ldp
0011 E0 MOVX A,@DPTR
0012 FB MOV R3,A
0013 A3 INC DPTR
0014 E0 MOVX A,@DPTR
0015 FA MOV R2,A
0016 A3 INC DPTR
0017 E0 MOVX A,@DPTR
0018 2401 ADD A,#01H
001A F9 MOV R1,A
001B E4 CLR A
001C 3A ADDC A,R2
001D FA MOV R2,A
001E EE MOV A,R6
001F 7C00 MOV R4,#00H
0021 29 ADD A,R1
0022 F9 MOV R1,A
0023 EC MOV A,R4
0024 3A ADDC A,R2
0025 FA MOV R2,A
0026 120000 E LCALL ?C?CLDPTR
0029 FD MOV R5,A
002A 900000 R MOV DPTR,#name
002D E0 MOVX A,@DPTR
002E FB MOV R3,A
002F A3 INC DPTR
0030 E0 MOVX A,@DPTR
0031 FA MOV R2,A
0032 A3 INC DPTR
0033 E0 MOVX A,@DPTR
0034 F9 MOV R1,A
0035 AC07 MOV R4,AR7
0037 0F INC R7
0038 8C82 MOV DPL,R4
003A 758300 MOV DPH,#00H
003D ED MOV A,R5
003E 120000 E LCALL ?C?CSTOPTR
0041 0E INC R6
C51 COMPILER V8.08 FAT32GETPARTLONGNAME 06/01/2008 16:20:59 PAGE 13
0042 EE MOV A,R6
0043 B40AC8 CJNE A,#0AH,?C0001
0046 ?C0002:
; SOURCE LINE # 14
0046 E4 CLR A
0047 FE MOV R6,A
0048 ?C0004:
; SOURCE LINE # 15
0048 900000 R MOV DPTR,#ldp
004B E0 MOVX A,@DPTR
004C FB MOV R3,A
004D A3 INC DPTR
004E E0 MOVX A,@DPTR
004F FA MOV R2,A
0050 A3 INC DPTR
0051 E0 MOVX A,@DPTR
0052 240E ADD A,#0EH
0054 F9 MOV R1,A
0055 E4 CLR A
0056 3A ADDC A,R2
0057 FA MOV R2,A
0058 EE MOV A,R6
0059 7C00 MOV R4,#00H
005B 29 ADD A,R1
005C F9 MOV R1,A
005D EC MOV A,R4
005E 3A ADDC A,R2
005F FA MOV R2,A
0060 120000 E LCALL ?C?CLDPTR
0063 FD MOV R5,A
0064 900000 R MOV DPTR,#name
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