1 /***************************************************************************
2 * Copyright (C) 2004, 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
28 typedef unsigned char u8;
32 typedef unsigned short u16;
36 typedef unsigned int u32;
40 typedef unsigned long long u64;
45 /* DANGER!!!! here be dragons! Note that the pointer in
46 * memory might be unaligned. On some CPU's, i.e. ARM7,
47 * the 2 lsb are ignored for 32 bit access, on others
48 * it will cause an exception and on e.g. x86, it works
49 * the same as if aligned.
51 #define le_to_h_u32(x) ((u32)((x)[0] | (x)[1] << 8 | (x)[2] << 16 | (x)[3] << 24))
52 #define le_to_h_u16(x) ((u16)((x)[0] | (x)[1] << 8))
53 #define be_to_h_u32(x) ((u32)((x)[3] | (x)[2] << 8 | (x)[1] << 16 | (x)[0] << 24))
54 #define be_to_h_u16(x) ((u16)((x)[1] | (x)[0] << 8))
56 #define h_u32_to_le(buf, val) do {\
57 (buf)[3] = ((val) & 0xff000000) >> 24;\
58 (buf)[2] = ((val) & 0x00ff0000) >> 16;\
59 (buf)[1] = ((val) & 0x0000ff00) >> 8;\
60 (buf)[0] = ((val) & 0x000000ff);\
62 #define h_u32_to_be(buf, val) do {\
63 (buf)[0] = ((val) & 0xff000000) >> 24;\
64 (buf)[1] = ((val) & 0x00ff0000) >> 16;\
65 (buf)[2] = ((val) & 0x0000ff00) >> 8;\
66 (buf)[3] = ((val) & 0x000000ff);\
69 #define h_u16_to_le(buf, val) do {\
70 (buf)[1] = ((val) & 0xff00) >> 8;\
71 (buf)[0] = ((val) & 0x00ff) >> 0;\
73 #define h_u16_to_be(buf, val) do {\
74 (buf)[0] = ((val) & 0xff00) >> 8;\
75 (buf)[1] = ((val) & 0x00ff) >> 0;\