Rev 422 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 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 */ |