| /* 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 */ |