1 #ifndef BYTE_DWORD
2 #define BYTE_DWORD
3
4 /* Copyright 2007,2009 Alain Knaff.
5 * This file is part of mtools.
6 *
7 * Mtools is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * Mtools is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with Mtools. If not, see <http://www.gnu.org/licenses/>.
19 */
20
byte2dword(Byte * val)21 static Dword byte2dword(Byte* val)
22 {
23 Dword l;
24 l = (Dword)((val[0] << 24) + (val[1] << 16) + (val[2] << 8) + val[3]);
25
26 return l;
27 }
28
UNUSED(static int32_t byte2sdword (Byte * val))29 UNUSED(static int32_t byte2sdword(Byte* val))
30 {
31 int32_t l;
32 l = (int32_t)((val[0] << 24) + (val[1] << 16) + (val[2] << 8) + val[3]);
33
34 return l;
35 }
36
37
UNUSED(static Qword byte2qword (Byte * val))38 UNUSED(static Qword byte2qword(Byte* val))
39 {
40 Qword l;
41 l = val[0];
42 l = (l << 8) | val[1];
43 l = (l << 8) | val[2];
44 l = (l << 8) | val[3];
45 l = (l << 8) | val[4];
46 l = (l << 8) | val[5];
47 l = (l << 8) | val[6];
48 l = (l << 8) | val[7];
49 return l;
50 }
51
dword2byte(Dword parm,Byte * rval)52 static void dword2byte(Dword parm, Byte* rval)
53 {
54 rval[0] = (parm >> 24) & 0xff;
55 rval[1] = (parm >> 16) & 0xff;
56 rval[2] = (parm >> 8) & 0xff;
57 rval[3] = parm & 0xff;
58 }
59
UNUSED(static void sdword2byte (int32_t parm,Byte * rval))60 UNUSED(static void sdword2byte(int32_t parm, Byte* rval))
61 {
62 rval[0] = (parm >> 24) & 0xff;
63 rval[1] = (parm >> 16) & 0xff;
64 rval[2] = (parm >> 8) & 0xff;
65 rval[3] = parm & 0xff;
66 }
67
UNUSED(static void qword2byte (Qword parm,Byte * rval))68 UNUSED(static void qword2byte(Qword parm, Byte* rval))
69 {
70 rval[0] = (parm >> 56) & 0xff;
71 rval[1] = (parm >> 48) & 0xff;
72 rval[2] = (parm >> 40) & 0xff;
73 rval[3] = (parm >> 32) & 0xff;
74 rval[4] = (parm >> 24) & 0xff;
75 rval[5] = (parm >> 16) & 0xff;
76 rval[6] = (parm >> 8) & 0xff;
77 rval[7] = parm & 0xff;
78 }
79
80 #endif
81