mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 01:55:19 +00:00
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
|
|
* COPYRIGHT: GPL - See COPYING in the top level directory
|
|
* PROJECT: ReactOS Virtual DOS Machine
|
|
* FILE: subsystems/mvdm/ntvdm/cpu/cpu.h
|
|
* PURPOSE: Minimal x86 machine emulator for the VDM
|
|
* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
|
|
*/
|
|
|
|
#ifndef _CPU_H_
|
|
#define _CPU_H_
|
|
|
|
/* INCLUDES *******************************************************************/
|
|
|
|
#include <fast486.h>
|
|
|
|
/* DEFINES ********************************************************************/
|
|
|
|
/* FLAGS */
|
|
#define EMULATOR_FLAG_CF (1 << 0)
|
|
#define EMULATOR_FLAG_PF (1 << 2)
|
|
#define EMULATOR_FLAG_AF (1 << 4)
|
|
#define EMULATOR_FLAG_ZF (1 << 6)
|
|
#define EMULATOR_FLAG_SF (1 << 7)
|
|
#define EMULATOR_FLAG_TF (1 << 8)
|
|
#define EMULATOR_FLAG_IF (1 << 9)
|
|
#define EMULATOR_FLAG_DF (1 << 10)
|
|
#define EMULATOR_FLAG_OF (1 << 11)
|
|
#define EMULATOR_FLAG_NT (1 << 14)
|
|
#define EMULATOR_FLAG_RF (1 << 16)
|
|
#define EMULATOR_FLAG_VM (1 << 17)
|
|
#define EMULATOR_FLAG_AC (1 << 18)
|
|
#define EMULATOR_FLAG_VIF (1 << 19)
|
|
#define EMULATOR_FLAG_VIP (1 << 20)
|
|
#define EMULATOR_FLAG_ID (1 << 21)
|
|
|
|
#if 0
|
|
enum
|
|
{
|
|
EMULATOR_EXCEPTION_DIVISION_BY_ZERO,
|
|
EMULATOR_EXCEPTION_DEBUG,
|
|
EMULATOR_EXCEPTION_NMI,
|
|
EMULATOR_EXCEPTION_BREAKPOINT,
|
|
EMULATOR_EXCEPTION_OVERFLOW,
|
|
EMULATOR_EXCEPTION_BOUND,
|
|
EMULATOR_EXCEPTION_INVALID_OPCODE,
|
|
EMULATOR_EXCEPTION_NO_FPU,
|
|
EMULATOR_EXCEPTION_DOUBLE_FAULT,
|
|
EMULATOR_EXCEPTION_FPU_SEGMENT,
|
|
EMULATOR_EXCEPTION_INVALID_TSS,
|
|
EMULATOR_EXCEPTION_NO_SEGMENT,
|
|
EMULATOR_EXCEPTION_STACK_SEGMENT,
|
|
EMULATOR_EXCEPTION_GPF,
|
|
EMULATOR_EXCEPTION_PAGE_FAULT
|
|
};
|
|
#endif
|
|
|
|
extern BOOLEAN CpuRunning;
|
|
extern FAST486_STATE EmulatorContext;
|
|
|
|
/* FUNCTIONS ******************************************************************/
|
|
|
|
#if 0
|
|
VOID EmulatorException(BYTE ExceptionNumber, LPWORD Stack);
|
|
#endif
|
|
|
|
VOID CpuExecute(WORD Segment, WORD Offset);
|
|
VOID CpuStep(VOID);
|
|
VOID CpuSimulate(VOID);
|
|
VOID CpuUnsimulate(VOID);
|
|
#if 0
|
|
VOID EmulatorTerminate(VOID);
|
|
#endif
|
|
|
|
BOOLEAN CpuInitialize(VOID);
|
|
VOID CpuCleanup(VOID);
|
|
|
|
#endif // _CPU_H_
|
|
|
|
/* EOF */
|