Synopsis:

       unsigned=hexitoint(hexi_str,num_bytes)

Arguments:

       hexi_str - The hexadecimal string to convert

       num_bytes - The number of bytes to convert (either 1,2 or 4)

Description:  This function converts a hexidecimal string into its unsigned decimal integer equivalent.   The hexi_str value must be specified in little endian format (i.e lowest to highest byte order).    The num_bytes argument specifies whether 1, 2 or 4 bytes are to be converted.     If an invalid num_bytes value is given then it is assume to be a 1 byte conversion.

For example:

       // This returns 255

       int_val=hexistoint("FF",1);

       

       // This returns 255

       int_val=hexistoint("FF00",2);

       // This returns 65535

       int_val=hexistoint("FFFF",2);

       // This returns 65535

       int_val=hexistoint("FFFF0000",4);

       

       // This returns 268435456        

       int_val=hexistoint("00000010",4);

Returns:   Returns the unsigned decimal integer equivalent of the given hexi_str.