diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/include/bcd.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/include/bcd.h')
| -rw-r--r-- | roms/u-boot/include/bcd.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/roms/u-boot/include/bcd.h b/roms/u-boot/include/bcd.h new file mode 100644 index 000000000..9ecd32828 --- /dev/null +++ b/roms/u-boot/include/bcd.h @@ -0,0 +1,23 @@ +/* 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. + */ + +/* inline functions to translate to/from binary and binary-coded decimal + * (frequently found in RTC chips). + */ + +#ifndef _BCD_H +#define _BCD_H + +static inline unsigned int bcd2bin(unsigned int val) +{ + return ((val) & 0x0f) + ((val & 0xff) >> 4) * 10; +} + +static inline unsigned int bin2bcd(unsigned int val) +{ + return (((val / 10) << 4) | (val % 10)); +} + +#endif /* _BCD_H */ |