6e6d59e45281c6e75a68ab2d2f5a0c97ea8629ba
[openocd.git] / src / helper / types.h
1 /***************************************************************************
2 * Copyright (C) 2004, 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
23 #ifndef TYPES_H
24 #define TYPES_H
25
26 #ifdef HAVE_CONFIG_H
27 #include "config.h"
28 #endif
29
30 #ifndef u8
31 typedef unsigned char u8;
32 #endif
33
34 #ifndef u16
35 typedef unsigned short u16;
36 #endif
37
38 #ifndef u32
39 typedef unsigned int u32;
40 #endif
41
42 #ifndef u64
43 typedef unsigned long long u64;
44 #endif
45
46
47
48 /* DANGER!!!! here be dragons! Note that the pointer in
49 * memory might be unaligned. On some CPU's, i.e. ARM7,
50 * the 2 lsb are ignored for 32 bit access, on others
51 * it will cause an exception and on e.g. x86, it works
52 * the same as if aligned.
53 */
54 #define le_to_h_u32(x) ((u32)((x)[0] | (x)[1] << 8 | (x)[2] << 16 | (x)[3] << 24))
55 #define le_to_h_u16(x) ((u16)((x)[0] | (x)[1] << 8))
56 #define be_to_h_u32(x) ((u32)((x)[3] | (x)[2] << 8 | (x)[1] << 16 | (x)[0] << 24))
57 #define be_to_h_u16(x) ((u16)((x)[1] | (x)[0] << 8))
58
59 #define h_u32_to_le(buf, val) do {\
60 (buf)[3] = ((val) & 0xff000000) >> 24;\
61 (buf)[2] = ((val) & 0x00ff0000) >> 16;\
62 (buf)[1] = ((val) & 0x0000ff00) >> 8;\
63 (buf)[0] = ((val) & 0x000000ff);\
64 } while (0)
65 #define h_u32_to_be(buf, val) do {\
66 (buf)[0] = ((val) & 0xff000000) >> 24;\
67 (buf)[1] = ((val) & 0x00ff0000) >> 16;\
68 (buf)[2] = ((val) & 0x0000ff00) >> 8;\
69 (buf)[3] = ((val) & 0x000000ff);\
70 } while (0)
71
72 #define h_u16_to_le(buf, val) do {\
73 (buf)[1] = ((val) & 0xff00) >> 8;\
74 (buf)[0] = ((val) & 0x00ff) >> 0;\
75 } while (0)
76 #define h_u16_to_be(buf, val) do {\
77 (buf)[0] = ((val) & 0xff00) >> 8;\
78 (buf)[1] = ((val) & 0x00ff) >> 0;\
79 } while (0)
80
81
82 #endif /* TYPES_H */