NetBSD/sys/arch/i386/include/bioscall.h

89 lines
3.1 KiB
C

/* $NetBSD: bioscall.h,v 1.5 1998/10/03 02:14:52 jtk Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by John Kohl.
*
* 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 __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
void bioscall __P((int /* function*/ , struct bioscallregs * /* regs */));
#endif
#endif /* __I386_BIOSCALL_H__ */