int32.h

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/*
 * COPYRIGHT:       GPL - See COPYING in the top level directory
 * PROJECT:         ReactOS Virtual DOS Machine
 * FILE:            subsystems/mvdm/ntvdm/int32.h
 * PURPOSE:         32-bit Interrupt Handlers
 * PROGRAMMERS:     Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
 *                  Hermes Belusca-Maito (hermes.belusca@sfr.fr)
 */
 
#ifndef _INT32_H_
#define _INT32_H_
 
/* INCLUDES *******************************************************************/
 
#include "cpu/callback.h"
 
/* DEFINES ********************************************************************/
 
/* 32-bit Interrupt Identifiers */
#define EMULATOR_MAX_INT32_NUM  0xFF + 1
 
 
//
// WARNING WARNING!!
// If you're changing the stack indices here, you then need
// to also fix the Int16To32 handler code in int32.c !!
//
 
// Custom variable pushed onto the stack for INT32 interrupts
#define STACK_INT_NUM   0
 
// This is the standard stack layout for an interrupt
#define STACK_IP        1
#define STACK_CS        2
#define STACK_FLAGS     3
 
// To be adjusted with the Int16To32 handler code in int32.c
#define Int16To32StubSize   17
 
/* FUNCTIONS ******************************************************************/
 
typedef VOID (WINAPI *EMULATOR_INT32_PROC)(LPWORD Stack);
 
ULONG
RegisterInt16(IN  ULONG   FarPtr,
              IN  BYTE    IntNumber,
              IN  LPBYTE  CallbackCode,
              IN  SIZE_T  CallbackSize,
              OUT PSIZE_T CodeSize OPTIONAL);
 
ULONG
RegisterInt32(IN  ULONG   FarPtr,
              IN  BYTE    IntNumber,
              IN  EMULATOR_INT32_PROC IntHandler,
              OUT PSIZE_T CodeSize OPTIONAL);
 
VOID
Int32Call(IN PCALLBACK16 Context,
          IN BYTE IntNumber);
 
VOID InitializeInt32(VOID);
 
#endif // _INT32_H_
 
/* EOF */