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/*  macros/address.h

 *

 *  This include file contains the bodies of the routines

 *  about addresses which are inlined.

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  address.inl,v 1.10 2000/11/30 14:07:54 joel Exp

 */

#ifndef __MACROS_ADDRESSES_h

#define __MACROS_ADDRESSES_h

/*PAGE

 *

 *  _Addresses_Add_offset

 *

 */

#define _Addresses_Add_offset( _base, _offset ) \

  ((void *)((char *)(_base) + (_offset)))

/*PAGE

 *

 *  _Addresses_Subtract_offset

 *

 */

#define _Addresses_Subtract_offset( _base, _offset ) \

  ((void *)((char *)(_base) - (_offset)))

/*PAGE

 *

 *  _Addresses_Subtract

 *

 *  NOTE:  The cast of an address to an unsigned32 makes this code

 *         dependent on an addresses being thirty two bits.

 */

#define _Addresses_Subtract( _left, _right ) \

  ((void *)(_left) - (void *)(_right))

/*PAGE

 *

 *  _Addresses_Is_aligned

 *

 */

#if (CPU_ALIGNMENT == 0)

#define _Addresses_Is_aligned( _address ) \

    (TRUE)

#elif defined(RTEMS_CPU_HAS_16_BIT_ADDRESSES)

#define _Addresses_Is_aligned( _address ) \

    ( ( (unsigned short)(_address) % CPU_ALIGNMENT ) == 0 )

#else

#define _Addresses_Is_aligned( _address ) \

    ( ( (unsigned32)(_address) % CPU_ALIGNMENT ) == 0 )

#endif

/*PAGE

 *

 *  _Addresses_Is_in_range

 *

 */

#define _Addresses_Is_in_range( _address, _base, _limit ) \

  ( (_address) >= (_base) && (_address) <= (_limit) )

#endif

/* end of include file */