icmp.lst

CP2201和51单片机实现ARP ICMP IP UDP协议

C51 COMPILER V7.06   ICMP                                                                  12/04/2007 13:46:19 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE ICMP
OBJECT MODULE PLACED IN icmp.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE icmp.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*==============================================*/
   2          //      ICMP协议程序
   3          //      FOR AVR DEV 1.0
   4          /*==============================================*/
   5          
   6          #include  "ne2000.h"
   7          #include "ip.h"
   8          #include "netcomm.h"
   9          //extern union NetNode xdata myNode;
  10          //extern unsigned int chksum(unsigned char xdata *check,unsigned int size);
  11          /*==============================================*/
  12          //      函数名称:       PING应答
  13          /*==============================================*/
  14          void ping_answer(INT8U xdata *inbuf,union ip_address_type ip_addr, INT16U len)
  15          {
  16   1              unsigned int    i;
  17   1              unsigned char  xdata *icmp_outbuf;
  18   1              icmp_head xdata * icmp_in,*icmp_out;
  19   1              icmp_in=(icmp_head xdata * )(inbuf+34);
  20   1              icmp_out=(icmp_head xdata * )(icmp_outbuf+34);
  21   1              if(icmp_in->type == 0x08)
  22   1              {               
  23   2                      for (i = 42; i < len+42; i++)   
  24   2                          icmp_outbuf[i] = inbuf[i];
  25   2                      icmp_out->type = 0x00;  
  26   2                      icmp_out->id=icmp_in->id;
  27   2                      icmp_out->seq=icmp_in->seq;
  28   2                              icmp_out->option=icmp_in->option;
  29   2                          icmp_out->crc = 0;
  30   2                      icmp_out->crc =~chksum(icmp_outbuf+34,len); 
  31   2                  ip_send(icmp_outbuf,ip_addr, 0x01, len );           
  32   2              }  
  33   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    263    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      17
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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