tbit.h

VIA VT6655 x86下的Linux Source Code

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This software is copyrighted by and is the sole property of
 * VIA Networking Technologies, Inc. This software may only be used
 * in accordance with the corresponding license agreement. Any unauthorized
 * use, duplication, transmission, distribution, or disclosure of this
 * software is expressly forbidden.
 *
 * This software is provided by VIA Networking Technologies, Inc. "as is"
 * and any express or implied warranties, including, but not limited to, the
 * implied warranties of merchantability and fitness for a particular purpose
 * are disclaimed. In no event shall VIA Networking Technologies, Inc.
 * be liable for any direct, indirect, incidental, special, exemplary, or
 * consequential damages. 
 * 
 *
 * File: tbit.h
 *
 * Purpose: Bit routines
 *
 * Author: Tevin Chen
 *
 * Date: May 21, 1996
 *
 */


#ifndef __TBIT_H__
#define __TBIT_H__

#if !defined(__TTYPE_H__)
#include "ttype.h"
#endif



/*---------------------  Export Definitions -------------------------*/

/*---------------------  Export Types  ------------------------------*/

/*---------------------  Export Macros ------------------------------*/

// test single bit on
#define BITbIsBitOn(tData, tTestBit)                \
    (((tData) & (tTestBit)) != 0)

// test single bit off
#define BITbIsBitOff(tData, tTestBit)               \
    (((tData) & (tTestBit)) == 0)


#define BITbIsAllBitsOn(tData, tTestBit)            \
    (((tData) & (tTestBit)) == (tTestBit))

#define BITbIsAllBitsOff(tData, tTestBit)           \
    (((tData) & (tTestBit)) == 0)

#define BITbIsAnyBitsOn(tData, tTestBit)            \
    (((tData) & (tTestBit)) != 0)

#define BITbIsAnyBitsOff(tData, tTestBit)           \
    (((tData) & (tTestBit)) != (tTestBit))

/*---------------------  Export Classes  ----------------------------*/

/*---------------------  Export Variables  --------------------------*/
                                        
/*---------------------  Export Functions  --------------------------*/



#endif // __TBIT_H__