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/* Parameters for execution on VxWorks m68k's, for GDB, the GNU debugger.
   Copyright 1986, 1987, 1989, 1991, 1998 Free Software Foundation, Inc.
   Contributed by Cygnus Support.
 
   This file is part of GDB.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */
 
#define	GDBINIT_FILENAME	".os68gdbinit"
 
#define	DEFAULT_PROMPT		"(os68k) "
 
#include "m68k/tm-m68k.h"
 
/* We have more complex, useful breakpoints on the target.  */
#undef DECR_PC_AFTER_BREAK
#define	DECR_PC_AFTER_BREAK	0
 
/* Takes the current frame-struct pointer and returns the chain-pointer
   to get to the calling frame.
 
   If our current frame pointer is zero, we're at the top; else read out
   the saved FP from memory pointed to by the current FP.  */
 
#undef	FRAME_CHAIN
#define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)
 
/* If the chain pointer is zero (either because the saved value fetched
   by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN
   never fetched anything), we are at the top of the stack.  */
/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */
 
#undef FRAME_CHAIN_VALID
#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe)