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/*
* This routine returns control to 162Bug.
*
* 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 be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
*
* Modifications of respective RTEMS file: COPYRIGHT (c) 1994.
* EISCAT Scientific Association. M.Savitski
*
* This material is a part of the MVME162 Board Support Package
* for the RTEMS executive. Its licensing policies are those of the
* RTEMS above.
*
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
#include <zilog/z8036.h>
#include <page_table.h>
void bsp_return_to_monitor_trap()
{
extern void start( void );
page_table_teardown();
lcsr->intr_ena = 0; /* disable interrupts */
#if defined(mvme162lx)
m68k_set_vbr(0x00000000); /* restore 162Bug vectors */
#else
m68k_set_vbr(0xFFE00000); /* restore 162Bug vectors */
#endif
asm volatile( "trap #15" ); /* trap to 162Bug */
asm volatile( ".short 0x63" ); /* return to 162Bug (.RETURN) */
/* restart program */
/*
* This does not work on the 162....
*/
#if 0
{ register volatile void *start_addr;
start_addr = start;
asm volatile ( "jmp %0@" : "=a" (start_addr) : "0" (start_addr) );
}
#endif
}
void bsp_cleanup( void )
{
M68Kvec[ 45 ] = bsp_return_to_monitor_trap; /* install handler */
asm volatile( "trap #13" ); /* insures SUPV mode */
}
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