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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.
- */
- /* macros to translate to/from binary and binary-coded decimal (frequently
- * found in RTC chips).
- */
- #ifndef _BCD_H
- #define _BCD_H
- #define BCD2BIN(val) (((val) & 0x0f) + ((val)>>4)*10)
- #define BIN2BCD(val) ((((val)/10)<<4) + (val)%10)
- /* backwards compat */
- #define BCD_TO_BIN(val) ((val)=BCD2BIN(val))
- #define BIN_TO_BCD(val) ((val)=BIN2BCD(val))
- #endif /* _BCD_H */
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