LCOM1920-T02G10

/*        $NetBSD: bioscall.h,v 1.11 2008/04/28 20:23:24 martin Exp $ */

/*-

 * Copyright (c) 1997, 2000 The NetBSD Foundation, Inc.

 * All rights reserved.

 *

 * This code is derived from software contributed to The NetBSD Foundation

 * by John Kohl and Jason R. Thorpe.

 *

 * 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.

 *

 * 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        PAGE_SIZE

#ifndef _LOCORE

#define        BIOSREG_LO        0

#define        BIOSREG_HI        1

typedef        union {

        u_char biosreg_quarter[4];

        u_short biosreg_half[2];

        u_int biosreg_long;

} 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;

    bios_reg r_es;

};

#define        AL        r_ax.biosreg_quarter[BIOSREG_LO]

#define        AH        r_ax.biosreg_quarter[BIOSREG_HI]

#define        AX        r_ax.biosreg_half[BIOSREG_LO]

#define        AX_HI        r_ax.biosreg_half[BIOSREG_HI]

#define        EAX        r_ax.biosreg_long

#define        BL        r_bx.biosreg_quarter[BIOSREG_LO]

#define        BH        r_bx.biosreg_quarter[BIOSREG_HI]

#define        BX        r_bx.biosreg_half[BIOSREG_LO]

#define        BX_HI        r_bx.biosreg_half[BIOSREG_HI]

#define        EBX        r_bx.biosreg_long

#define        CL        r_cx.biosreg_quarter[BIOSREG_LO]

#define        CH        r_cx.biosreg_quarter[BIOSREG_HI]

#define        CX        r_cx.biosreg_half[BIOSREG_LO]

#define        CX_HI        r_cx.biosreg_half[BIOSREG_HI]

#define        ECX        r_cx.biosreg_long

#define        DL        r_dx.biosreg_quarter[BIOSREG_LO]

#define        DH        r_dx.biosreg_quarter[BIOSREG_HI]

#define        DX        r_dx.biosreg_half[BIOSREG_LO]

#define        DX_HI        r_dx.biosreg_half[BIOSREG_HI]

#define        EDX        r_dx.biosreg_long

#define        SI        r_si.biosreg_half[BIOSREG_LO]

#define        SI_HI        r_si.biosreg_half[BIOSREG_HI]

#define        ESI        r_si.biosreg_long

#define        DI        r_di.biosreg_half[BIOSREG_LO]

#define        DI_HI        r_di.biosreg_half[BIOSREG_HI]

#define        EDI        r_di.biosreg_long

#define        FLAGS         r_flags.biosreg_half[BIOSREG_LO]

#define        FLAGS_HI r_flags.biosreg_half[BIOSREG_HI]

#define        EFLAGS         r_flags.biosreg_long

#define ES        r_es.biosreg_half[BIOSREG_LO]

void bioscall(int /* function*/ , struct bioscallregs * /* regs */);

#endif

#endif /* __I386_BIOSCALL_H__ */