/*	$NetBSD: svr4_machdep.h,v 1.8 2003/01/18 06:55:22 thorpej Exp $	 */

/*-
 * Copyright (c) 1994 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Christos Zoulas.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef	_SPARC_SVR4_MACHDEP_H_
#define	_SPARC_SVR4_MACHDEP_H_

#include <compat/svr4/svr4_types.h>

/*
 * Machine dependent portions [SPARC]
 */

#define SVR4_SPARC_PSR		0
#ifdef _LP64
#define SVR4_SPARC_CCR		0
#endif
#define SVR4_SPARC_PC		1
#define SVR4_SPARC_nPC		2
#define SVR4_SPARC_Y		3
#define SVR4_SPARC_G1		4
#define SVR4_SPARC_G2		5
#define SVR4_SPARC_G3		6
#define SVR4_SPARC_G4		7
#define SVR4_SPARC_G5		8
#define SVR4_SPARC_G6		9
#define SVR4_SPARC_G7		10
#define SVR4_SPARC_O0		11
#define SVR4_SPARC_O1		12
#define SVR4_SPARC_O2		13
#define SVR4_SPARC_O3		14
#define SVR4_SPARC_O4		15
#define SVR4_SPARC_O5		16
#define SVR4_SPARC_O6		17
#define SVR4_SPARC_O7		18
#define SVR4_SPARC_ASI		19
#define SVR4_SPARC_FPRS		20
#ifdef _LP64
#define SVR4_SPARC_MAXREG	21
#else
#define SVR4_SPARC_MAXREG	19
#endif

#define SVR4_SPARC_SP		SVR4_SPARC_O6
#define SVR4_SPARC_PS		SVR4_SPARC_PSR

#define SVR4_SPARC_MAXWIN	31

typedef long svr4_greg_t;

typedef struct {
	svr4_greg_t	rwin_lo[8];
	svr4_greg_t	rwin_in[8];
} svr4_rwindow_t;

typedef struct {
	int		 cnt;
	int		*sp[SVR4_SPARC_MAXWIN];
	svr4_rwindow_t   win[SVR4_SPARC_MAXWIN];
} svr4_gwindow_t;

typedef svr4_greg_t svr4_gregset_t[SVR4_SPARC_MAXREG];

typedef struct {
	union {
		u_int		fp_ri[32];
#ifdef _LP64
		double		fp_rd[32];
		long double	fp_rq[16];
#else
		double		fp_rd[16];
#endif
	} fpu_regs;
#ifdef _LP64
	unsigned long	 fp_fsr;
	unsigned	 fp_fprs;
	void		*fp_q;
#else
	void		*fp_q;
	unsigned	 fp_fsr;
#endif
	u_char		 fp_nqel;
	u_char		 fp_nqsize;
	u_char		 fp_busy;
} svr4_fregset_t;

typedef struct {
	u_int		 id;
	void		*ptr;
} svr4_xrs_t;

#define SVR4_XRS_ID	(('x' << 24) | ('r' << 16) | ('s' << 8))

typedef long svr4_asrset_t[16]; /* %asr16 - %asr31 */

typedef struct svr4_mcontext {
	svr4_gregset_t	 greg;
	svr4_gwindow_t  *gwin;
	svr4_fregset_t	 freg;
	svr4_xrs_t	 xrs;
#ifdef _LP64
	svr4_asrset_t	 asrs;
	long		 pad[4];
#else
	long		 pad[19];
#endif
} svr4_mcontext_t;

#define SVR4_UC_MACHINE_PAD	23

struct svr4_ucontext;

int svr4_trap __P((int, struct lwp *));

#endif /* !_SPARC_SVR4_MACHDEP_H_ */