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tmacro.h
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1 /*
2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3  * All rights reserved.
4  *
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.
9  *
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.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * File: tmacro.h
20  *
21  * Purpose: define basic common types and macros
22  *
23  * Author: Tevin Chen
24  *
25  * Date: May 21, 1996
26  *
27  */
28 
29 #ifndef __TMACRO_H__
30 #define __TMACRO_H__
31 
32 #include "ttype.h"
33 
34 /****** Common helper macros ***********************************************/
35 
36 #if !defined(LOBYTE)
37 #define LOBYTE(w) ((unsigned char)(w))
38 #endif
39 #if !defined(HIBYTE)
40 #define HIBYTE(w) ((unsigned char)(((unsigned short)(w) >> 8) & 0xFF))
41 #endif
42 
43 #if !defined(LOWORD)
44 #define LOWORD(d) ((unsigned short)(d))
45 #endif
46 #if !defined(HIWORD)
47 #define HIWORD(d) ((unsigned short)((((unsigned long)(d)) >> 16) & 0xFFFF))
48 #endif
49 
50 #define LODWORD(q) ((q).u.dwLowDword)
51 #define HIDWORD(q) ((q).u.dwHighDword)
52 
53 #if !defined(MAKEWORD)
54 #define MAKEWORD(lb, hb) ((unsigned short)(((unsigned char)(lb)) | (((unsigned short)((unsigned char)(hb))) << 8)))
55 #endif
56 #if !defined(MAKEDWORD)
57 #define MAKEDWORD(lw, hw) ((unsigned long)(((unsigned short)(lw)) | (((unsigned long)((unsigned short)(hw))) << 16)))
58 #endif
59 
60 #endif // __TMACRO_H__
61 
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