blob: 86e2a9a6f0025fd19eafe226759747670f924b14 (
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
|
#ifndef TYPES_H
#define TYPES_H
typedef unsigned char u8;
typedef unsigned short u16;
typedef signed short i16;
typedef unsigned int u32;
/*
* These macros help us solve problems on systems that don't support
* non-aligned memory access. This isn't a big issue IMHO, since the tools
* in this package are intended mainly for Intel and compatible systems,
* which are little-endian and support non-aligned memory access. Anyway,
* you may use the following defines to control the way it works:
* - Define BIGENDIAN on big-endian systems.
* - Define ALIGNMENT_WORKAROUND if your system doesn't support
* non-aligned memory access. In this case, we use a slower, but safer,
* memory access method.
* You most probably will have to define none or the two of them.
*/
#ifdef BIGENDIAN
typedef struct {
u32 h;
u32 l;
} u64;
#else
typedef struct {
u32 l;
u32 h;
} u64;
#endif
#ifdef ALIGNMENT_WORKAROUND
static u64 U64(u32 low, u32 high)
{
u64 self;
self.l=low;
self.h=high;
return self;
}
#endif
#ifdef ALIGNMENT_WORKAROUND
# ifdef BIGENDIAN
# define WORD(x) (u16)((x)[1]+((x)[0]<<8))
# define DWORD(x) (u32)((x)[3]+((x)[2]<<8)+((x)[1]<<16)+((x)[0]<<24))
# define QWORD(x) (U64(DWORD(x+4), DWORD(x)))
# else /* BIGENDIAN */
# define WORD(x) (u16)((x)[0]+((x)[1]<<8))
# define DWORD(x) (u32)((x)[0]+((x)[1]<<8)+((x)[2]<<16)+((x)[3]<<24))
# define QWORD(x) (U64(DWORD(x), DWORD(x+4)))
# endif /* BIGENDIAN */
#else /* ALIGNMENT_WORKAROUND */
#define WORD(x) (u16)(*(const u16 *)(x))
#define DWORD(x) (u32)(*(const u32 *)(x))
#define QWORD(x) (*(const u64 *)(x))
#endif /* ALIGNMENT_WORKAROUND */
#endif
|
