[deliverable/linux.git] / include / linux / bcd.h

/* 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 */
Commit	Line	Data
1da177e4 LT	1	/* Permission is hereby granted to copy, modify and redistribute this code
	2	* in terms of the GNU Library General Public License, Version 2 or later,
	3	* at your option.
	4	*/
	5
	6	/* macros to translate to/from binary and binary-coded decimal (frequently
	7	* found in RTC chips).
	8	*/
	9
	10	#ifndef _BCD_H
	11	#define _BCD_H
	12
	13	#define BCD2BIN(val) (((val) & 0x0f) + ((val)>>4)*10)
	14	#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10)
	15
	16	/* backwards compat */
	17	#define BCD_TO_BIN(val) ((val)=BCD2BIN(val))
	18	#define BIN_TO_BCD(val) ((val)=BIN2BCD(val))
	19
	20	#endif /* _BCD_H */