/*	$NetBSD: bioscall.h,v 1.3 1998/08/31 23:52:40 jtk Exp $ */
/*
 *  Copyright (c) 1997 John T. Kohl
 *  All rights reserved.
 * 
 *  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. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `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 AUTHOR 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 __I386_BIOSCALL_H__
#define __I386_BIOSCALL_H__

/*
 * virtual & physical address of the trampoline
 * that we use: page 1.
 */
#define BIOSTRAMP_BASE	NBPG

#ifndef _LOCORE
typedef union bios_register {
	struct {
		u_short hw_lo;
		u_short hw_hi;
	} halfword;
	u_int longword;
} bios_reg;

struct bioscallregs {
    bios_reg r_ax;
    bios_reg r_bx;
    bios_reg r_cx;
    bios_reg r_dx;
    bios_reg r_si;
    bios_reg r_di;
    bios_reg r_flags;
};
#define AX r_ax.halfword.hw_lo
#define AX_HI r_ax.halfword.hw_hi
#define EAX r_ax.longword
#define BX r_bx.halfword.hw_lo
#define BX_HI r_bx.halfword.hw_hi
#define EBX r_bx.longword
#define CX r_cx.halfword.hw_lo
#define CX_HI r_cx.halfword.hw_hi
#define ECX r_cx.longword
#define DX r_dx.halfword.hw_lo
#define DX_HI r_dx.halfword.hw_hi
#define EDX r_dx.longword
#define SI r_si.halfword.hw_lo
#define SI_HI r_si.halfword.hw_hi
#define ESI r_si.longword
#define DI r_di.halfword.hw_lo
#define DI_HI r_di.halfword.hw_hi
#define EDI r_di.longword
#define FLAGS r_flags.halfword.hw_lo
#define FLAGS_HI r_flags.halfword.hw_hi
#define EFLAGS r_flags.longword

#endif
#endif /* __I386_BIOSCALL_H__ */