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/*
* This routine returns control to 147Bug.
*/
/*
* COPYRIGHT (c) 1989-2014.
* 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.rtems.org/license/LICENSE.
*
* MVME147 port for TNI - Telecom Bretagne
* by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)
* May 1996
*/
#include <bsp.h>
#include <bsp/bootcard.h>
extern void start(void);
static rtems_isr bsp_return_to_monitor_trap(
rtems_vector_number vector
)
{
register volatile void *start_addr;
m68k_set_vbr( 0 ); /* restore 147Bug vectors */
__asm__ volatile( "trap #15" ); /* trap to 147Bug */
__asm__ volatile( ".short 0x63" ); /* return to 147Bug (.RETURN) */
/* restart program */
start_addr = start;
__asm__ volatile ( "jmp %0@" : "=a" (start_addr) : "0" (start_addr) );
}
void bsp_fatal_extension(
rtems_fatal_source source,
bool is_internal,
rtems_fatal_code error
)
{
pcc->timer1_int_control = 0; /* Disable Timer 1 */
pcc->timer2_int_control = 0; /* Disable Timer 2 */
M68Kvec[ 45 ] = bsp_return_to_monitor_trap; /* install handler */
__asm__ volatile( "trap #13" ); /* ensures SUPV mode */
}
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