utils.lst

cf8020+cp2200(网络)的驱动实现

C51 COMPILER V7.09   UTILS                                                                 07/27/2007 15:11:24 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE UTILS
OBJECT MODULE PLACED IN utils.obj
COMPILER INVOKED BY: F:\Keil\C51\BIN\C51.EXE tcp\utils.c LARGE BROWSE DEBUG OBJECTEXTEND PRINT(.\utils.lst) OBJECT(utils
                    -.obj)

line level    source

   1          #include "utils.h"
   2          
   3          /*
   4          void memcpy(void *s1, const void *s2, int n)
   5          {
   6                  int i;
   7          
   8                  for (i = 0; i < n; i++)
   9                          ((char *)(s1))[i] = ((const char *)(s2))[i];
  10          }
  11          
  12          void memset(void *s, const char ch, int n)
  13          {
  14                  int i;
  15          
  16                  for (i = 0; i < n; i++)
  17                          ((char *)(s))[i] = ch;
  18          }
  19          */
  20          unsigned short ntohs(unsigned short s)
  21          {
  22   1              return (s >> 8) | (s << 8);
  23   1      }
  24          
  25          unsigned long ntohl(unsigned long l)
  26          {
  27   1              return  ((l >> 24) & 0x000000ff) |
  28   1                      ((l >>  8) & 0x0000ff00) |
  29   1                      ((l <<  8) & 0x00ff0000) |
  30   1                      ((l << 24) & 0xff000000);
  31   1      }
  32          
  33          unsigned short htons(unsigned short s)
  34          {
  35   1              return (s >> 8) | (s << 8);
  36   1      }
  37          
  38          unsigned long htonl(unsigned long l)
  39          {
  40   1              return  ((l >> 24) & 0x000000ff) |
  41   1                      ((l >>  8) & 0x0000ff00) |
  42   1                      ((l <<  8) & 0x00ff0000) |
  43   1                      ((l << 24) & 0xff000000);
  44   1      }
  45          
  46          unsigned long strtoul(char *s)
  47          {
  48   1              unsigned long ret;
  49   1              int i;
  50   1      
  51   1              ret = 0;
  52   1      
  53   1              while (*s != '\0') {
  54   2                      if (*s >= '0' && *s <= '9')
C51 COMPILER V7.09   UTILS                                                                 07/27/2007 15:11:24 PAGE 2   

  55   2                              i = *s - '0';
  56   2                      else if (*s >= 'a' && *s <= 'f')
  57   2                              i = *s - 'a' + 0xa;
  58   2                      else if (*s >= 'A' && *s <= 'F')
  59   2                              i = *s - 'A' + 0xa;
  60   2                      else
  61   2                              return -1;
  62   2                      ret = (ret << 4) + i;
  63   2                      s++;
  64   2              }
  65   1      
  66   1              return ret;
  67   1      }
  68          
  69          void ultostr(char *s, unsigned long data1)
  70          {
  71   1              int i;
  72   1              
  73   1              s[8] = 0;
  74   1              for(i=7; i>=0; i--, data1 >>=4)
  75   1              {
  76   2                      if((data1&0xf)<=9)
  77   2                              s[i] = (data1&0xf)+'0';
  78   2                      else
  79   2                              s[i] = (data1&0xf)+'a'-0x0a;
  80   2              }       
  81   1      }
  82          
  83          unsigned long strtobcd(char *s)
  84          {
  85   1              unsigned long ret;
  86   1              int i;
  87   1      
  88   1              ret = 0;
  89   1      
  90   1              while (*s != '\0') {
  91   2                      if (*s >= '0' && *s <= '9')
  92   2                              i = *s - '0';           
  93   2                      else
  94   2                              return -1;
  95   2                      ret = (ret << 4) + i;
  96   2                      s++;
  97   2              }
  98   1      
  99   1              return ret;
 100   1      }
 101          
 102          unsigned long strtodec(char *str, int cnt)
 103          {
 104   1              unsigned long i, data1 = 0;     
 105   1              
 106   1              for(i=0; i<cnt; i++)
 107   1              {
 108   2                      data1 *= 10;
 109   2                      if(str[i]<'0'||str[i]>'9')
 110   2                              return -1;
 111   2                      data1 += str[i]-'0';                    
 112   2              }       
 113   1              return data1;
 114   1      }
 115          
 116          int strlen(const char *s)
C51 COMPILER V7.09   UTILS                                                                 07/27/2007 15:11:24 PAGE 3   

 117          {
 118   1              int i = 0;
 119   1      
 120   1              for(;*s != '\0'; s++)
 121   1                      i++;
 122   1              
 123   1              return i;
 124   1      }
 125          
 126          int strncmp(const char *s1, const char *s2, int maxlen) 
 127          {
 128   1              int i;
 129   1      
 130   1              for(i = 0; i < maxlen; i++) {
 131   2                      if(s1[i] != s2[i])
 132   2                              return ((int) s1[i]) - ((int) s2[i]);
 133   2                      if(s1[i] == 0)
 134   2                              return 0;
 135   2              }
 136   1      
 137   1              return 0;
 138   1      }
 139          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =   1410    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----      58
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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