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diff --git a/gdb/config/i960/tm-vx960.h b/gdb/config/i960/tm-vx960.h
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+/* Parameters for VxWorks Intel 960's, for GDB, the GNU debugger.
+ Copyright (C) 1986-1991 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. */
+
+#include "i960/tm-i960.h"
+
+/* Under VxWorks the IP isn't filled in. Skip it, go with RIP, which has
+ the real value. */
+#undef PC_REGNUM
+#define PC_REGNUM RIP_REGNUM
+
+#define GDBINIT_FILENAME ".vxgdbinit"
+
+#define DEFAULT_PROMPT "(vxgdb) "
+
+/* We have more complex, useful breakpoints on the target.
+ Amount ip must be decremented by after a breakpoint. */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */
+
+#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe)
+
+/* Breakpoint patching is handled at the target end in VxWorks. */
+/* #define BREAKPOINT {0x00, 0x3e, 0x00, 0x66} */
+
+/* Number of registers in a ptrace_getregs call. */
+
+#define VX_NUM_REGS (16 + 16 + 3)
+
+/* Number of registers in a ptrace_getfpregs call. */
+
+ /* @@ Can't use this -- the rdb library for the 960 target
+ doesn't support setting or retrieving FP regs. KR */
+
+/* #define VX_SIZE_FPREGS (REGISTER_RAW_SIZE (FP0_REGNUM) * 4) */