/* Target machine description for SGI Iris under Irix 5, for GDB.
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1998, 2000
   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.  */

#include "mips/tm-mips.h"

/* Redefine register numbers for SGI. */

#undef MIPS_REGISTER_NAMES

/* Initializer for an array of names for registers 32 and above.
   There should be NUM_REGS-32 strings in this initializer.  */

#define MIPS_REGISTER_NAMES 	\
    {	"f0",   "f1",   "f2",   "f3",   "f4",   "f5",   "f6",   "f7", \
	"f8",   "f9",   "f10",  "f11",  "f12",  "f13",  "f14",  "f15", \
	"f16",  "f17",  "f18",  "f19",  "f20",  "f21",  "f22",  "f23",\
	"f24",  "f25",  "f26",  "f27",  "f28",  "f29",  "f30",  "f31",\
	"pc",	"cause", "bad",	"hi",	"lo",	"fsr",  "fir" \
    }

/* Offsets for register values in _sigtramp frame.
   sigcontext is immediately above the _sigtramp frame on Irix.  */
#define SIGFRAME_BASE		0x0
#define SIGFRAME_PC_OFF		(SIGFRAME_BASE + 2 * 4)
#define SIGFRAME_REGSAVE_OFF	(SIGFRAME_BASE + 3 * 4)
#define SIGFRAME_FPREGSAVE_OFF	(SIGFRAME_BASE + 3 * 4 + 32 * 4 + 4)

/* The signal handler trampoline is called _sigtramp.  */
#undef IN_SIGTRAMP
#define IN_SIGTRAMP(pc, name) ((name) && STREQ ("_sigtramp", name))

/* Irix 5 saves a full 64 bits for each register.  We skip 2 * 4 to
   get to the saved PC (the register mask and status register are both
   32 bits) and then another 4 to get to the lower 32 bits.  We skip
   the same 4 bytes, plus the 8 bytes for the PC to get to the
   registers, and add another 4 to get to the lower 32 bits.  We skip
   8 bytes per register.  */
#undef SIGFRAME_PC_OFF
#define SIGFRAME_PC_OFF		(SIGFRAME_BASE + 2 * 4 + 4)
#undef SIGFRAME_REGSAVE_OFF
#define SIGFRAME_REGSAVE_OFF	(SIGFRAME_BASE + 2 * 4 + 8 + 4)
#undef SIGFRAME_FPREGSAVE_OFF
#define SIGFRAME_FPREGSAVE_OFF	(SIGFRAME_BASE + 2 * 4 + 8 + 32 * 8 + 4)
#define SIGFRAME_REG_SIZE	8