idesetcurrentdevice.lst

用C51单片机实现的MP3播放器的c代码程序。

C51 COMPILER V7.20   IDESETCURRENTDEVICE                                                   05/13/2005 17:26:47 PAGE 1   


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

line level    source

   1          #ifndef _IDEIO_DEFINE
   2           #include "IDEIO.c"
   3          #endif
   4          
   5          void IDESetCurrentDevice(BYTE DeviceNum);
   6          
   7          void IDESetCurrentDevice(BYTE DeviceNum)
   8          {
   9   1              if (DeviceNum==IDE_DEVICE_SLAVE&&IDE.TotalDevices==2)
  10   1              {
  11   2                      IDE.CurrentDevice=IDE_DEVICE_SLAVE;
  12   2                      if (!IDEStatus(IDE_STATUS_BSY,IDE_WAIT,FALSE,255)) return;
  13   2                      IDE_WRITE_LSB(IDE_ADDR_CMD_HEAD,0xb0);
  14   2              }
  15   1              else
  16   1              {
  17   2                      IDE.CurrentDevice=IDE_DEVICE_MASTER;
  18   2                      if (!IDEStatus(IDE_STATUS_BSY,IDE_WAIT,FALSE,255)) return;
  19   2                      IDE_WRITE_LSB(IDE_ADDR_CMD_HEAD,0xa0);
  20   2              }
  21   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     67    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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