_idewritesector.lst

用C51单片机实现的MP3播放器的c代码程序。

C51 COMPILER V7.20   _IDEWRITESECTOR                                                       05/13/2005 16:29:39 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE _IDEWRITESECTOR
OBJECT MODULE PLACED IN .\_IDEWRITESECTOR.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE ..\IDEIO.C51\_IDEWRITESECTOR.C BROWSE DEBUG OBJECTEXTEND PRINT(.\_IDEWRITES
                    -ECTOR.lst) OBJECT(.\_IDEWRITESECTOR.obj)

line level    source

   1          #ifndef _IDEIO_DEFINE
   2           #include "IDEIO.c"
   3          #endif
   4          
   5          BYTE _IDEWriteSector(void);
   6          
   7          BYTE _IDEWriteSector(void)
   8          {
   9   1              register BYTE *sector;
  10   1              register WORD i;
  11   1      
  12   1              sector=(BYTE *)&IDE.CurrentSector;
  13   1      
  14   1              if (!IDEStatus(IDE_STATUS_BSY,IDE_WAIT,FALSE,255))  return(IDE_ERROR_BSY);
  15   1              if (!IDEStatus(IDE_STATUS_DRDY,IDE_WAIT,TRUE,255)) return(IDE_ERROR_DRDY);
  16   1              IDE_WRITE_LSB(IDE_ADDR_CMD_LBA0,sector[3]);
  17   1              IDE_WRITE_LSB(IDE_ADDR_CMD_LBA1,sector[2]);
  18   1              IDE_WRITE_LSB(IDE_ADDR_CMD_LBA2,sector[1]);
  19   1              IDE_WRITE_LSB(IDE_ADDR_CMD_LBA3,0xe0|IDE.CurrentDevice|(sector[0]&0x0f));
  20   1              IDE_WRITE_LSB(IDE_ADDR_CMD_SECCNT,0x01);
  21   1              IDE_WRITE_LSB(IDE_ADDR_CMD_COMMAND,IDE_CMD_WRITE);
  22   1              if (!IDEStatus(IDE_STATUS_BSY,IDE_WAIT,FALSE,255))  return(IDE_ERROR_BSY);
  23   1              if (!IDEStatus(IDE_STATUS_DRQ,IDE_WAIT,TRUE,255)) return(IDE_ERROR_DRQ);
  24   1              for(i=0;i<512;)
  25   1              {
  26   2                      IDE_WRITE_WORD(IDE_ADDR_CMD_DATA,DiskBuffer[i++],DiskBuffer[i++]);
  27   2              }
  28   1              return(0);
  29   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    216    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       3
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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