81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/* $NetBSD: bioscall.h,v 1.3 1998/08/31 23:52:40 jtk Exp $ */
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/*
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* Copyright (c) 1997 John T. Kohl
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef __I386_BIOSCALL_H__
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#define __I386_BIOSCALL_H__
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/*
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* virtual & physical address of the trampoline
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* that we use: page 1.
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*/
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#define BIOSTRAMP_BASE NBPG
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#ifndef _LOCORE
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typedef union bios_register {
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struct {
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u_short hw_lo;
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u_short hw_hi;
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} halfword;
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u_int longword;
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} bios_reg;
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struct bioscallregs {
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bios_reg r_ax;
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bios_reg r_bx;
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bios_reg r_cx;
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bios_reg r_dx;
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bios_reg r_si;
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bios_reg r_di;
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bios_reg r_flags;
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};
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#define AX r_ax.halfword.hw_lo
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#define AX_HI r_ax.halfword.hw_hi
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#define EAX r_ax.longword
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#define BX r_bx.halfword.hw_lo
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#define BX_HI r_bx.halfword.hw_hi
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#define EBX r_bx.longword
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#define CX r_cx.halfword.hw_lo
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#define CX_HI r_cx.halfword.hw_hi
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#define ECX r_cx.longword
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#define DX r_dx.halfword.hw_lo
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#define DX_HI r_dx.halfword.hw_hi
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#define EDX r_dx.longword
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#define SI r_si.halfword.hw_lo
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#define SI_HI r_si.halfword.hw_hi
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#define ESI r_si.longword
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#define DI r_di.halfword.hw_lo
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#define DI_HI r_di.halfword.hw_hi
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#define EDI r_di.longword
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#define FLAGS r_flags.halfword.hw_lo
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#define FLAGS_HI r_flags.halfword.hw_hi
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#define EFLAGS r_flags.longword
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#endif
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#endif /* __I386_BIOSCALL_H__ */
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