address.inl

来自「RTEMS (Real-Time Executive for Multiproc」· INL 代码 · 共 106 行

/*  inline/address.inl
 *
 *  This include file contains the bodies of the routines
 *  about addresses which are inlined.
 *
 *  COPYRIGHT (c) 1988-2002.
 *  On-Line Applications Research Corporation (OAR).
 *  All rights reserved.
 *
 *  $Id: address.inl,v 1.5 2002/01/17 21:47:47 joel Exp $
 */

#ifndef __INLINE_ADDRESSES_inl
#define __INLINE_ADDRESSES_inl

/*PAGE
 *
 *  _Addresses_Add_offset
 *
 */

STATIC INLINE void *_Addresses_Add_offset ( 
  void       *base, 
  unsigned32  offset
)
{
  return (base + offset);
}

/*PAGE
 *
 *  _Addresses_Subtract_offset
 *
 */

STATIC INLINE void *_Addresses_Subtract_offset ( 
  void       *base, 
  unsigned32  offset
)
{
  return (base - offset);
}

/*PAGE
 *
 *  _Addresses_Add
 *
 *  NOTE:  The cast of an address to an unsigned32 makes this code
 *         dependent on an addresses being thirty two bits.
 */

STATIC INLINE void *_Addresses_Add ( 
  void *left, 
  void *right 
)
{
  return (left + (unsigned32)right);
}

/*PAGE
 *
 *  _Addresses_Subtract
 *
 *  NOTE:  The cast of an address to an unsigned32 makes this code
 *         dependent on an addresses being thirty two bits.
 */

STATIC INLINE unsigned32 _Addresses_Subtract ( 
  void *left, 
  void *right 
)
{
  return (left - right);
}

/*PAGE
 *
 *  _Addresses_Is_aligned
 *
 */

STATIC INLINE boolean _Addresses_Is_aligned ( 
  void *address
)
{
    return ( ( (unsigned32)address % 4 ) == 0 );
}

/*PAGE
 *
 *  _Addresses_Is_aligned
 *
 */

STATIC INLINE boolean _Addresses_Is_in_range ( 
  void *address, 
  void *base,
  void *limit 
)
{
  return ( address >= base && address <= limit );
}

#endif
/* end of include file */