110 lines
3.8 KiB
C
110 lines
3.8 KiB
C
/* $NetBSD: bioscall.h,v 1.7 2001/05/02 13:12:46 jdolecek Exp $ */
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/*-
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* Copyright (c) 1997, 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by John Kohl and Jason R. Thorpe.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN 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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#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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#define BIOSREG_LO 0
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#define BIOSREG_HI 1
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typedef union {
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u_char biosreg_quarter[4];
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u_short biosreg_half[2];
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u_int biosreg_long;
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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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bios_reg r_es;
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};
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#define AL r_ax.biosreg_quarter[BIOSREG_LO]
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#define AH r_ax.biosreg_quarter[BIOSREG_HI]
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#define AX r_ax.biosreg_half[BIOSREG_LO]
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#define AX_HI r_ax.biosreg_half[BIOSREG_HI]
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#define EAX r_ax.biosreg_long
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#define BL r_bx.biosreg_quarter[BIOSREG_LO]
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#define BH r_bx.biosreg_quarter[BIOSREG_HI]
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#define BX r_bx.biosreg_half[BIOSREG_LO]
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#define BX_HI r_bx.biosreg_half[BIOSREG_HI]
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#define EBX r_bx.biosreg_long
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#define CL r_cx.biosreg_quarter[BIOSREG_LO]
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#define CH r_cx.biosreg_quarter[BIOSREG_HI]
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#define CX r_cx.biosreg_half[BIOSREG_LO]
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#define CX_HI r_cx.biosreg_half[BIOSREG_HI]
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#define ECX r_cx.biosreg_long
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#define DL r_dx.biosreg_quarter[BIOSREG_LO]
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#define DH r_dx.biosreg_quarter[BIOSREG_HI]
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#define DX r_dx.biosreg_half[BIOSREG_LO]
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#define DX_HI r_dx.biosreg_half[BIOSREG_HI]
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#define EDX r_dx.biosreg_long
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#define SI r_si.biosreg_half[BIOSREG_LO]
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#define SI_HI r_si.biosreg_half[BIOSREG_HI]
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#define ESI r_si.biosreg_long
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#define DI r_di.biosreg_half[BIOSREG_LO]
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#define DI_HI r_di.biosreg_half[BIOSREG_HI]
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#define EDI r_di.biosreg_long
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#define FLAGS r_flags.biosreg_half[BIOSREG_LO]
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#define FLAGS_HI r_flags.biosreg_half[BIOSREG_HI]
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#define EFLAGS r_flags.biosreg_long
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#define ES r_es.biosreg_half[BIOSREG_LO]
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void bioscall __P((int /* function*/ , struct bioscallregs * /* regs */));
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#endif
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#endif /* __I386_BIOSCALL_H__ */
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