51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/* Target machine description for EST-300, for GDB, the GNU debugger.
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Copyright 1994, 1995 Free Software Foundation, Inc.
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Contributed by Steve Chamberlain @ Cygnus Support.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* GCC is probably the only compiler used on this configuration. So
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get this right even if the code which detects gcc2_compiled. is
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still broken. */
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#define BELIEVE_PCC_PROMOTION 1
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/* We have more complex, useful breakpoints on the target. */
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#define DECR_PC_AFTER_BREAK 0
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#define NUM_REGS 18
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#include "m68k/tm-m68k.h"
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#undef FRAME_CHAIN
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#undef FRAME_CHAIN_VALID
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/* Takes the current frame-struct pointer and returns the chain-pointer
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to get to the calling frame.
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If our current frame pointer is zero, we're at the top; else read out
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the saved FP from memory pointed to by the current FP. */
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#define FRAME_CHAIN(thisframe) \
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((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)
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/* If the chain pointer is zero (either because the saved value fetched
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by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN
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never fetched anything), we are at the top of the stack. */
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#define FRAME_CHAIN_VALID(chain, thisframe) (chain != 0)
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