fs_variable.lst

atmel at89c51snd1c mp3芯片方案源码

C51 COMPILER V7.50   FS_VARIABLE                                                           02/16/2009 09:59:55 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE FS_VARIABLE
OBJECT MODULE PLACED IN fs_variable.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE modules\file\fs_variable.c LARGE BROWSE DEBUG OBJECTEXTEND PRINT(.\fs_varia
                    -ble.lst) OBJECT(fs_variable.obj)

line level    source

   1          
   2          /*_____ I N C L U D E S ____________________________________________________*/
   3          
   4          #include "config.h"                         /* system configuration */
   5          #include "fat.h"
   6          
   7          /*_____ M A C R O S ________________________________________________________*/
   8          
   9          
  10          /*_____ D E F I N I T I O N ________________________________________________*/
  11          
  12          
  13          
  14          extern  pdata Byte    gl_buffer[];
  15          
  16          
  17          /* shared file system variables */
  18          
  19          /* disk management */
  20          data  Uint32  fat_ptr_data;                     /* address of the first byte 
  21                                                          /* of data */
  22          xdata Byte fat_buf_sector[512];                 /* 512 bytes buffer */
  23          
  24          /* directory management */
  25          idata Uint16  fat_dclust_byte_count;/* byte counter in directory sector */
  26          idata Uint32  fat_dir_current_sect; /* sector of selected entry in dir list */
  27          xdata Uint16  fat_dir_list_index;   /* index of current entry in dir list */
  28          xdata Uint32  fat_dir_start_sect;   /* start sector of dir list */
  29          xdata Uint16  fat_dir_list_last;    /* index of last entry in dir list */
  30          idata Uint16  fat_dchain_index;     /* the number of the fragment of the dir, in fact */
  31                                              /* the index of the table in the cluster chain */
  32          idata  Uint16  fat_fchain_nb_clust; /* the offset of the cluster from the first cluster */
  33                                              /* of the file fragment */
  34          xdata Uint32 total_capacity;
  35          
  36          /* file management */
  37          data  Uint16   fat_fclust_byte_count;     /* byte counter in file cluster */
  38          xdata Byte current_ext;
  39          xdata char  ext[3];                       /* file extension (limited to 3 characters) */
  40          
  41          char  pdata *lfn_name = &(gl_buffer[32]); /* long filename limited to MAX_FILENAME_LEN chars */
  42          Uint16      song_name[11];
  43          bit bdata song_name_style;
  44          
  45          /* Mode repeat A/B variables */
  46          xdata  Byte    fat_fchain_index_save;         
  47          xdata  Byte    fat_fchain_nb_clust_save;
  48          xdata  Uint16  fat_fclust_byte_count_save;
  49          
  50          // xdata fat_st_free_space free_space;
  51          
  52          
  53          /* Specific variables for fat file system */
  54          //#if ((MEM_CHIP_FS == FS_FAT_32) || (MEM_CHIP_FS == FS_FAT_12_16) || (MEM_CARD_FS == FS_FAT_32) || (MEM_C
C51 COMPILER V7.50   FS_VARIABLE                                                           02/16/2009 09:59:55 PAGE 2   

             -ARD_FS == FS_FAT_12_16))
  55          /* disk management */
  56          data  Uint32  fat_ptr_fats;         /* address of the first byte of FAT */
  57          data  Uint32  fat_ptr_rdir;
  58          data  Byte    fat_cluster_size;     /* cluster size (sector count) */
  59          idata Byte    fat_cluster_mask;     /* mask for end of cluster test */
  60          
  61          
  62          bdata bit     fat_is_fat16;         /* TRUE: FAT16 - FALSE: FAT12 */
  63          bdata bit     fat_open_mode;        /* READ or WRITE */
  64          bdata bit     fat_2_is_present;     /* TRUE: 2 FATs - FALSE: 1 FAT */
  65          bdata bit     flag_end_disk_file;
  66          
  67          xdata Uint32  fat_count_of_clusters;/* number of cluster - 2 */
  68          xdata Union32 fat_file_size;
  69          xdata Uint32  fat_fat_size;         /* FAT size in sector count */
  70          
  71          /* directory management */
  72          xdata fat_st_clust_chain dclusters[MAX_DIR_FRAGMENT_NUMBER];
  73                                              /* cluster chain for the current directory */
  74          bdata bit     dir_is_root;          /* TRUE: point the root directory  */
  75                                                       
  76          idata Byte    fat_dchain_nb_clust;  /* the offset of the cluster from the first cluster */
  77                                              /* of the dir fragment */
  78          xdata Byte    fat_last_dclust_index;/* index of the last cluster in directory chain */
  79          xdata Uint32  fat_dir_current_offs; /* entry offset from fat_dir_current_sect */
  80          xdata fat_st_cache   fat_cache;     /* The cache structure, see the .h for more info */
  81          
  82          
  83          /* file management */
  84          xdata fat_st_clust_chain fclusters[MAX_FILE_FRAGMENT_NUMBER];
  85                                              /* cluster chain for the current file */
  86          idata Byte    fat_last_clust_index;/* index of the last cluster in file chain */
  87          idata Byte    fat_fchain_index;    /* the number of the fragment of the file, in fact */
  88                                              /* the index of the table in the cluster chain */
  89                        
  90          xdata Uint32  fat_current_file_size;
  91          xdata Uint32  fat_rootclus_fat32;  /* root cluster address */
  92          bdata bit fat_last_dir_cluster_full;
  93          bdata bit fat_no_entries_free;
  94          xdata Uint16 fat_total_clusters;
  95          xdata Uint32 last_free_cluster;
  96          
  97          xdata Uint16  fat_root_entry;       /* position in root dir */
  98          
  99          idata Uint16 fat_current_end_entry_position;
 100          idata Uint16 fat_current_start_entry_position;
 101          xdata Uint16 fat_nb_deleted_entries;
 102          xdata Uint16 fat_nb_total_entries;
 103          
 104          bdata bit    fat_is_fat32;                   /* TRUE: FAT32 - FALSE: FAT12/FAT16 */
 105          
 106          xdata Uint32 fat_bpb_add;
 107          
 108          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =   ----    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   1075    ----
   PDATA SIZE       =   ----    ----
C51 COMPILER V7.50   FS_VARIABLE                                                           02/16/2009 09:59:55 PAGE 3   

   DATA SIZE        =     15    ----
   IDATA SIZE       =     18    ----
   BIT SIZE         =      9    ----
END OF MODULE INFORMATION.


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