Initial revision

1 files changed, 53 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/m68k/mvme162/startup/bspclean.c b/c/src/lib/libbsp/m68k/mvme162/startup/bspclean.c
new file mode 100644
index 0000000000..215a53cc46
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/mvme162/startup/bspclean.c
@@ -0,0 +1,53 @@
+/*
+ *  This routine returns control to 162Bug.
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *
+ *  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 <z8036.h>
+
+void bsp_return_to_monitor_trap()
+{
+  extern void start( void  );
+
+  lcsr->intr_ena = 0;               /* disable interrupts */
+  m68k_set_vbr(0xFFE00000);         /* restore 162Bug vectors */
+  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 */
+}