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https://github.com/reactos/reactos.git
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dd9dafc7ff
Finish my Interruption revamp. - Move interrupt-related code from bop.c to int32.c - Introduce InitializeInt32 helper so that one can initialize all the needed 16-bit stubs for the 32-bit interrupts. - Remove unneeded defines in emulator.h and an exported variable in ntvdm.h. svn path=/branches/ntvdm/; revision=60908
141 lines
3.3 KiB
C
141 lines
3.3 KiB
C
/*
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* COPYRIGHT: GPL - See COPYING in the top level directory
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* PROJECT: ReactOS Virtual DOS Machine
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* FILE: emulator.h
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* PURPOSE: Minimal x86 machine emulator for the VDM (header file)
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* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
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*/
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#ifndef _EMULATOR_H_
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#define _EMULATOR_H_
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/* INCLUDES *******************************************************************/
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#include "ntvdm.h"
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#include <fast486.h>
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/* DEFINES ********************************************************************/
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/* FLAGS */
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#define EMULATOR_FLAG_CF (1 << 0)
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#define EMULATOR_FLAG_PF (1 << 2)
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#define EMULATOR_FLAG_AF (1 << 4)
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#define EMULATOR_FLAG_ZF (1 << 6)
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#define EMULATOR_FLAG_SF (1 << 7)
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#define EMULATOR_FLAG_TF (1 << 8)
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#define EMULATOR_FLAG_IF (1 << 9)
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#define EMULATOR_FLAG_DF (1 << 10)
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#define EMULATOR_FLAG_OF (1 << 11)
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#define EMULATOR_FLAG_NT (1 << 14)
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#define EMULATOR_FLAG_RF (1 << 16)
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#define EMULATOR_FLAG_VM (1 << 17)
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#define EMULATOR_FLAG_AC (1 << 18)
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#define EMULATOR_FLAG_VIF (1 << 19)
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#define EMULATOR_FLAG_VIP (1 << 20)
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#define EMULATOR_FLAG_ID (1 << 21)
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#define STACK_COUNTER 0
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#define STACK_INT_NUM 1
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#define STACK_IP 2
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#define STACK_CS 3
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#define STACK_FLAGS 4
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enum
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{
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EMULATOR_EXCEPTION_DIVISION_BY_ZERO,
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EMULATOR_EXCEPTION_DEBUG,
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EMULATOR_EXCEPTION_NMI,
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EMULATOR_EXCEPTION_BREAKPOINT,
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EMULATOR_EXCEPTION_OVERFLOW,
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EMULATOR_EXCEPTION_BOUND,
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EMULATOR_EXCEPTION_INVALID_OPCODE,
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EMULATOR_EXCEPTION_NO_FPU,
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EMULATOR_EXCEPTION_DOUBLE_FAULT,
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EMULATOR_EXCEPTION_FPU_SEGMENT,
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EMULATOR_EXCEPTION_INVALID_TSS,
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EMULATOR_EXCEPTION_NO_SEGMENT,
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EMULATOR_EXCEPTION_STACK_SEGMENT,
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EMULATOR_EXCEPTION_GPF,
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EMULATOR_EXCEPTION_PAGE_FAULT
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};
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enum
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{
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EMULATOR_REG_AX,
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EMULATOR_REG_CX,
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EMULATOR_REG_DX,
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EMULATOR_REG_BX,
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EMULATOR_REG_SP,
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EMULATOR_REG_BP,
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EMULATOR_REG_SI,
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EMULATOR_REG_DI,
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EMULATOR_REG_ES,
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EMULATOR_REG_CS,
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EMULATOR_REG_SS,
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EMULATOR_REG_DS,
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EMULATOR_REG_FS,
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EMULATOR_REG_GS
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};
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extern FAST486_STATE EmulatorContext;
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/* FUNCTIONS ******************************************************************/
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VOID WINAPI EmulatorReadMemory
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(
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PFAST486_STATE State,
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ULONG Address,
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PVOID Buffer,
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ULONG Size
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);
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VOID WINAPI EmulatorWriteMemory
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(
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PFAST486_STATE State,
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ULONG Address,
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PVOID Buffer,
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ULONG Size
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);
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VOID WINAPI EmulatorReadIo
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(
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PFAST486_STATE State,
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ULONG Port,
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PVOID Buffer,
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ULONG DataCount,
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UCHAR DataSize
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);
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VOID WINAPI EmulatorWriteIo
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(
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PFAST486_STATE State,
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ULONG Port,
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PVOID Buffer,
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ULONG DataCount,
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UCHAR DataSize
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);
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UCHAR WINAPI EmulatorIntAcknowledge
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(
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PFAST486_STATE State
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);
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BOOLEAN EmulatorInitialize(VOID);
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VOID EmulatorSetStack(WORD Segment, DWORD Offset);
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VOID EmulatorExecute(WORD Segment, WORD Offset);
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VOID EmulatorInterrupt(BYTE Number);
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VOID EmulatorInterruptSignal(VOID);
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ULONG EmulatorGetRegister(ULONG Register);
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ULONG EmulatorGetProgramCounter(VOID);
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VOID EmulatorSetRegister(ULONG Register, ULONG Value);
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BOOLEAN EmulatorGetFlag(ULONG Flag);
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VOID EmulatorSetFlag(ULONG Flag);
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VOID EmulatorClearFlag(ULONG Flag);
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VOID EmulatorStep(VOID);
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VOID EmulatorCleanup(VOID);
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VOID EmulatorSetA20(BOOLEAN Enabled);
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#endif // _EMULATOR_H_
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/* EOF */
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