fifo_buf.LST

C51 COMPILER V9.52.0.0   FIFO_BUF                                                          09/09/2014 21:02:52 PAGE 1   


C51 COMPILER V9.52.0.0, COMPILATION OF MODULE FIFO_BUF
OBJECT MODULE PLACED IN fifo_buf.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE fifo_buf.c LARGE BROWSE DEBUG OBJECTEXTEND TABS(2)

line level    source

   1          /******************************************************
   2          环形FIFO缓冲区,定义一个数组作为缓冲区
   3          用以下函数来实现环形存储
   4          By Fancy  QQ:652774317
   5          *****************************************************/
   6          #include  "fifo_buf.h"
   7          
   8          
   9          unsigned char FIFO_BUF_Read(ST_FIFO_BUF *buf)
  10          {
  11   1        unsigned char *addr;
  12   1        addr=buf->P_buf + buf->Buf_Start;
  13   1        if(buf->Value_Data>0)
  14   1        {
  15   2        buf->Value_Data--;
  16   2        buf->Buf_Start++;
  17   2        if(buf->Buf_Start >= buf->Max_Date) buf->Buf_Start=0;
  18   2        }
  19   1        return  *addr;
  20   1      }
  21          
  22          void  FIFO_BUF_Write(ST_FIFO_BUF *buf,unsigned char temp)
  23          {
  24   1        unsigned char *addr;
  25   1        if(buf->Value_Data<buf->Max_Date)
  26   1        {
  27   2          if((buf->Value_Data+buf->Buf_Start)>=buf->Max_Date) addr=buf->P_buf+buf->Value_Data+buf->Buf_Start-buf->
             -Max_Date;
  28   2          else  addr=buf->P_buf+buf->Value_Data+buf->Buf_Start;
  29   2          *(addr)=temp;
  30   2          buf->Value_Data++;
  31   2        }
  32   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    449    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----      13
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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