blob: 7b5d742528bfbe9dd349c8a191a94d6e2af52494 (
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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
getput.h
Author: Tatu Ylonen <ylo@cs.hut.fi>
Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
All rights reserved
Created: Wed Jun 28 22:36:30 1995 ylo
Macros for storing and retrieving data in msb first and lsb first order.
*/
/* RCSID("$Id: getput.h,v 1.1 1999/10/27 03:42:44 damien Exp $"); */
#ifndef GETPUT_H
#define GETPUT_H
/*------------ macros for storing/extracting msb first words -------------*/
#define GET_32BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 24) | \
((unsigned long)(unsigned char)(cp)[1] << 16) | \
((unsigned long)(unsigned char)(cp)[2] << 8) | \
((unsigned long)(unsigned char)(cp)[3]))
#define GET_16BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 8) | \
((unsigned long)(unsigned char)(cp)[1]))
#define PUT_32BIT(cp, value) do { \
(cp)[0] = (value) >> 24; \
(cp)[1] = (value) >> 16; \
(cp)[2] = (value) >> 8; \
(cp)[3] = (value); } while (0)
#define PUT_16BIT(cp, value) do { \
(cp)[0] = (value) >> 8; \
(cp)[1] = (value); } while (0)
/*------------ macros for storing/extracting lsb first words -------------*/
#define GET_32BIT_LSB_FIRST(cp) \
(((unsigned long)(unsigned char)(cp)[0]) | \
((unsigned long)(unsigned char)(cp)[1] << 8) | \
((unsigned long)(unsigned char)(cp)[2] << 16) | \
((unsigned long)(unsigned char)(cp)[3] << 24))
#define GET_16BIT_LSB_FIRST(cp) \
(((unsigned long)(unsigned char)(cp)[0]) | \
((unsigned long)(unsigned char)(cp)[1] << 8))
#define PUT_32BIT_LSB_FIRST(cp, value) do { \
(cp)[0] = (value); \
(cp)[1] = (value) >> 8; \
(cp)[2] = (value) >> 16; \
(cp)[3] = (value) >> 24; } while (0)
#define PUT_16BIT_LSB_FIRST(cp, value) do { \
(cp)[0] = (value); \
(cp)[1] = (value) >> 8; } while (0)
#endif /* GETPUT_H */
|
