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Diffstat (limited to 'src/uint8p.c')
-rw-r--r-- | src/uint8p.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/uint8p.c b/src/uint8p.c new file mode 100644 index 0000000..3a41560 --- /dev/null +++ b/src/uint8p.c @@ -0,0 +1,39 @@ +#include "uint_t.h" + +/** + * @file uint8p.c + * @author feh + * @brief packing/unpacking 8 bit int to/from char string + */ + +void uint8_pack(char s[2],uint8 u) +{ + s[0] = u & 255; + s[1] = u >> 4; +} + +void uint8_pack_big(char s[2],uint8 u) +{ + s[1] = u & 255; + s[0] = u >> 4; +} + +void uint8_unpack(char s[2],uint8 *u) +{ + uint8 result; + + result = (unsigned char) s[1]; result <<= 4; + result += (unsigned char) s[0]; + + *u = result; +} + +void uint8_unpack_big(char s[2],uint8 *u) +{ + uint8 result; + + result = (unsigned char) s[0]; result <<= 4; + result += (unsigned char) s[1]; + + *u = result; +} |