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bootloader/u-boot_2015_04/include/bcd.h 548 Bytes
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  /* Permission is hereby granted to copy, modify and redistribute this code
   * in terms of the GNU Library General Public License, Version 2 or later,
   * at your option.
   */
  
  /* inline functions to translate to/from binary and binary-coded decimal
   * (frequently found in RTC chips).
   */
  
  #ifndef _BCD_H
  #define _BCD_H
  
  #include <linux/types.h>
  
  static inline unsigned int bcd2bin(u8 val)
  {
  	return ((val) & 0x0f) + ((val) >> 4) * 10;
  }
  
  static inline u8 bin2bcd (unsigned int val)
  {
  	return (((val / 10) << 4) | (val % 10));
  }
  
  #endif /* _BCD_H */