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diff --git a/gdb/vax-tdep.h b/gdb/vax-tdep.h
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+/* Common target dependent code for GDB on VAX systems.
+   Copyright 2002 Free Software Foundation, Inc.
+
+   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.  */
+
+#ifndef VAX_TDEP_H
+#define VAX_TDEP_H
+
+/* Say how long (ordinary) registers are.  This is a piece of bogosity
+   used in push_word and a few other places;  REGISTER_RAW_SIZE is the
+   real way to know how big a register is.  */
+#define VAX_REGISTER_SIZE 4
+
+/* Number of machine registers.  */
+#define VAX_NUM_REGS 17
+
+/* Total amount of space needed to store our copies of the machine's
+   register state.  */
+#define VAX_REGISTER_BYTES (VAX_NUM_REGS * 4)
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+#define VAX_MAX_REGISTER_RAW_SIZE 4
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+#define VAX_MAX_REGISTER_VIRTUAL_SIZE 4
+
+/* Register numbers of various important registers.
+   Note that most of these values are "real" register numbers,
+   and correspond to the general registers of the machine,
+   and are "phony" register numbers which is too large
+   to be an actual register number as far as the user is concerned
+   but serves to get the desired value when passed to read_register.  */
+
+#define VAX_AP_REGNUM     12  /* argument pointer */
+#define VAX_FP_REGNUM     13  /* Contains address of executing stack frame */
+#define VAX_SP_REGNUM     14  /* Contains address of top of stack */
+#define VAX_PC_REGNUM     15  /* Contains program counter */
+#define VAX_PS_REGNUM     16  /* Contains processor status */
+
+#endif /* VAX_TDEP_H */