/* 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 */ |