9a04e0d3d2bd2c5297588b9ed987a0747f4a201b
[reactos.git] / subsystems / ntvdm / ntvdm.h
1 /*
2 * COPYRIGHT: GPL - See COPYING in the top level directory
3 * PROJECT: ReactOS Virtual DOS Machine
4 * FILE: ntvdm.h
5 * PURPOSE: Header file to define commonly used stuff
6 * PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
7 */
8
9 #ifndef _NTVDM_H_
10 #define _NTVDM_H_
11
12 /* INCLUDES *******************************************************************/
13
14 #include <windows.h>
15 #include <stdio.h>
16 #include <conio.h>
17 #include <stdarg.h>
18 #include <debug.h>
19
20 /* DEFINES ********************************************************************/
21
22 #define TO_LINEAR(seg, off) (((seg) << 4) + (off))
23 #define MAX_SEGMENT 0xFFFF
24 #define MAX_OFFSET 0xFFFF
25 #define MAX_ADDRESS TO_LINEAR(MAX_SEGMENT, MAX_OFFSET)
26 #define FAR_POINTER(x) ((ULONG_PTR)BaseAddress + TO_LINEAR(HIWORD(x), LOWORD(x)))
27 #define STEPS_PER_CYCLE 256
28
29 /* FUNCTIONS ******************************************************************/
30
31 extern LPVOID BaseAddress;
32 extern BOOLEAN VdmRunning;
33 extern LPCWSTR ExceptionName[];
34
35 VOID DisplayMessage(LPCWSTR Format, ...);
36
37 #endif
38
39 /* EOF */