idereadsector.lst

用C51单片机实现的MP3播放器的c代码程序。

C51 COMPILER V7.20   IDEREADSECTOR                                                         05/11/2005 08:41:39 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE IDEREADSECTOR
OBJECT MODULE PLACED IN IDEREADSECTOR.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE IDEREADSECTOR.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #ifndef _IDEIO_DEFINE
   2           #include "IDEIO.c"
   3          #endif
   4          
   5          BYTE IDEReadSector(DWORD Sector,BYTE *Buffer) small;
*** ERROR C129 IN LINE 5 OF IDEREADSECTOR.C: missing ';' before '.'
*** WARNING C307 IN LINE 5 OF IDEREADSECTOR.C: macro 'IDEReadSector': parameter count mismatch
   6          
   7          BYTE IDEReadSector(DWORD Sector,BYTE *Buffer) small
*** WARNING C307 IN LINE 7 OF IDEREADSECTOR.C: macro 'IDEReadSector': parameter count mismatch
   8          {
   9                  register WORD i;
  10          
  11                  if (!IDEStatus(IDE_STATUS_BSY,IDE_WAIT,FALSE,255))  
  12                     return(IDE_ERROR_BSY);
  13                  if (!IDEStatus(IDE_STATUS_DRDY,IDE_WAIT,TRUE,255)) 
  14                     return(IDE_ERROR_DRDY);
  15                  IDE_WRITE_LSB(IDE_ADDR_CMD_LBA0,(BYTE)(Sector&0x000000ff));
  16                  Sector=Sector>>8;
  17                  IDE_WRITE_LSB(IDE_ADDR_CMD_LBA1,(BYTE)(Sector&0x000000ff));
  18                  Sector=Sector>>8;
  19                  IDE_WRITE_LSB(IDE_ADDR_CMD_LBA2,(BYTE)(Sector&0x000000ff));
  20                  Sector=Sector>>8;
  21                  IDE_WRITE_LSB(IDE_ADDR_CMD_LBA3,0xe0|(IDE.CurrentDevice&0x10)|(BYTE)(Sector&0x0f));
  22                  IDE_WRITE_LSB(IDE_ADDR_CMD_SECCNT,0x01);
  23                  IDE_WRITE_LSB(IDE_ADDR_CMD_COMMAND,IDE_CMD_READ);
  24                  if (!IDEStatus(IDE_STATUS_BSY,IDE_WAIT,FALSE,255))  return(IDE_ERROR_BSY);
  25                  if (!IDEStatus(IDE_STATUS_DRQ,IDE_WAIT,TRUE,255)) return(IDE_ERROR_DRQ);
  26                  for(i=0;i<512;)
  27                  {
  28                          IDE_READ_WORD(IDE_ADDR_CMD_DATA,Buffer[i++],Buffer[i++]);
  29                  }
  30                  return(IDE_SUCCESSFUL);
  31          };

C51 COMPILATION COMPLETE.  2 WARNING(S),  1 ERROR(S)