Question about programming (a little off-topic)

[DAVIDSANAN]

Hi Juan Luis. I don't know if there is something to do it directly but 
you can convert from hexadecimal to decimal with a little function that 
do the following: 16*hn + ln (where hn is the high nibble and ln is the 
low nibble). So for C0 you'll do 16*C(12)+0=192.
To transform from letter to number you can do: int(ch)-int('A')+10 (if 
the ch is in uppercase).
In c++ you can implement the following:
(note that if you declare 'dec' as int dec[4]; you can't get more than 
4 digits)
void converthtd(char *hex,int *dec){
int conth,contd;
int decimal;
int mult;

  mult=1;
  contd=-1;
  for (conth=0;hex[conth];conth++){
      if (hex[conth]!=':'){                              
          if (mult==16) mult=1;
          else{
              mult=16;
              contd++;
              dec[contd]=0;
          }
          if (hex[conth]>'9') dec[contd]=dec[contd]+(int(hex[conth])-int
('A'))*mult;
          else dec[contd]=dec[contd]+(int(hex[conth])-int('0'))
*mult;                
     }
  }
}