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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i960/] [rxgen960/] [shmsupp/] [addrconv.c] - Rev 30

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/*  Shm_Convert_address
 *
 *  This routine takes into account the peculiar short VME address
 *  of the CVME961 board.  The CVME961 maps short address space
 *  0xffffxxxx to 0xb400xxxx.
 *
 *  Input parameters:
 *    address - address to convert
 *
 *  Output parameters:
 *    returns - converted address
 *
 *  COPYRIGHT (c) 1989-1997.
 *  On-Line Applications Research Corporation (OAR).
 *  Copyright assigned to U.S. Government, 1994.
 *
 *  The license and distribution terms for this file may in
 *  the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  $Id: addrconv.c,v 1.2 2001-09-27 11:59:59 chris Exp $
 */
 
#include <rtems.h>
#include <bsp.h>
#include "shm_driver.h"
 
void *Shm_Convert_address(
  void *address
)
{
  rtems_unsigned32 workaddr = (rtems_unsigned32) address;
 
  if ( workaddr >= 0xffff0000 )
    workaddr = (workaddr & 0xffff) | 0xb4000000;
  return ( (rtems_unsigned32 *)workaddr );
}
 

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