/* Macro definitions for GDB on a Commodore Amiga running SVR4 (amix).
   Copyright (C) 1991, Free Software Foundation, Inc.
   Written by Fred Fish at Cygnus Support (fnf@cygint)

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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* All Amiga's (so far) running UNIX have come standard with the floating
   point coprocessor. */

#define HAVE_68881	/* Amiga has floating point coprocessor */

/* Sequence of bytes for breakpoint instruction.
   This is a TRAP instruction.  The last 4 bits (0x1 below) is the
   vector. */

#define BREAKPOINT {0x4e, 0x41 }	/* Trap using vector 0x1 */

/* How much to decrement the PC after a trap.  Depends on kernel. */

#define DECR_PC_AFTER_BREAK 0		/* No decrement required */


#include "tm-68k.h"
#include "tm-svr4.h"

/* Address of end of stack space. (actually one byte past it).
   This value is typically very OS dependent.
   FIXME:  Check to see if SVR4 offers some machine independent way
   of discovering this value and use it if so, and if we need it. */

/* #define STACK_END_ADDR 0xc0800000 */

/* Use the alternate method of avoiding running up off the end of
   the frame chain or following frames back into the startup code.
   See the comments in blockframe.c */
   
#undef FRAME_CHAIN_VALID
#define FRAME_CHAIN_VALID(chain, thisframe)	\
  (chain != 0 					\
   && !(inside_main_scope ((thisframe)->pc))	\
   && !(inside_entry_scope ((thisframe)->pc)))