summaryrefslogtreecommitdiff
path: root/src/uint8p.c
blob: 71513cdcf7089c0e4f24d8fbbc892467beced376 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
#include "uint_t.h"

/**
	@file uint8x.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;
}