| | 1 | /* |
| | 2 | * Copyright (c) 1997 Helmut Wirth <hfwirth@ping.at> |
| | 3 | * All rights reserved. |
| | 4 | * |
| | 5 | * Redistribution and use in source and binary forms, with or without |
| | 6 | * modification, are permitted provided that the following conditions |
| | 7 | * are met: |
| | 8 | * 1. Redistributions of source code must retain the above copyright |
| | 9 | * notice immediately at the beginning of the file, witout modification, |
| | 10 | * this list of conditions, and the following disclaimer. |
| | 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 12 | * notice, this list of conditions and the following disclaimer in the |
| | 13 | * documentation and/or other materials provided with the distribution. |
| | 14 | * 3. The name of the author may not be used to endorse or promote products |
| | 15 | * derived from this software without specific prior written permission. |
| | 16 | * |
| | 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| | 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| | 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| | 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| | 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| | 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| | 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| | 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| | 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| | 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| | 27 | * |
| | 28 | * $FreeBSD: src/usr.bin/doscmd/emuint.h,v 1.2 1999/08/28 01:00:14 peter Exp $ |
| | 29 | * $DragonFly: src/usr.bin/doscmd/emuint.h,v 1.2 2003/06/17 04:29:26 dillon Exp $ |
| | 30 | */ |
| | 31 | |
| | 32 | |
| | 33 | /* |
| | 34 | * The emulator helper interrupt: |
| | 35 | * |
| | 36 | * Interrupt 0xFF is used by some emulator functions. It is a portal into |
| | 37 | * the emulator and cannot be used by ordinary DOS applications directly |
| | 38 | * The interrupt 0xFF is called by helper functions under DOS (such as |
| | 39 | * the redirector interfcae and the EMS emulation). |
| | 40 | * There are functions and subfunctions defined. (See emuint.c for details) |
| | 41 | */ |
| | 42 | |
| | 43 | /* The redirector interface (formerly instbsdi.exe) */ |
| | 44 | #define EMU_REDIR 0x1 /* Function for redirector interface */ |
| | 45 | /* No subfunctions defined */ |
| | 46 | |
| | 47 | /* Expanded memory (EMS) driver callback */ |
| | 48 | #define EMU_EMS 0x2 /* Function for EMS driver control */ |
| | 49 | /* subfunctions for EMS */ |
| | 50 | #define EMU_EMS_CTL 0x0 /* Control function, used during init */ |
| | 51 | #define EMU_EMS_CALL 0x1 /* Callback, calls are routed via this */ |
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