/*
 * Copyright (c) 1997 Helmut Wirth <hfwirth@ping.at>
 * 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 immediately at the beginning of the file, witout modification,
 *    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.
 *
 * $FreeBSD: src/usr.bin/doscmd/emuint.h,v 1.2 1999/08/28 01:00:14 peter Exp $
 * $DragonFly: src/usr.bin/doscmd/emuint.h,v 1.2 2003/06/17 04:29:26 dillon Exp $
 */


/* 
 * The emulator helper interrupt:
 *
 * Interrupt 0xFF is used by some emulator functions. It is a portal into
 * the emulator and cannot be used by ordinary DOS applications directly
 * The interrupt 0xFF is called by helper functions under DOS (such as
 * the redirector interfcae and the EMS emulation).
 * There are functions and subfunctions defined. (See emuint.c for details)
 */

/* The redirector interface (formerly instbsdi.exe) */
#define EMU_REDIR	0x1	/* Function for redirector interface */
/* No subfunctions defined */

/* Expanded memory (EMS) driver callback */
#define EMU_EMS		0x2	/* Function for EMS driver control */
/* subfunctions for EMS */
#define EMU_EMS_CTL	0x0	/* Control function, used during init */
#define EMU_EMS_CALL	0x1	/* Callback, calls are routed via this */