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reactos/subsystems/ntvdm/emulator.h

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[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
/*
* COPYRIGHT: GPL - See COPYING in the top level directory
* PROJECT: ReactOS Virtual DOS Machine
* FILE: emulator.h
* PURPOSE: Minimal x86 machine emulator for the VDM (header file)
* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
*/
#ifndef _EMULATOR_H_
#define _EMULATOR_H_
/* INCLUDES *******************************************************************/
#include "ntvdm.h"
Bye bye Soft386, welcome Fast486, courtesy Aleksandar Andrejevic. [NTVDM]: Define by default NEW_EMULATOR, i.e. use Fast486 instead of softx86. svn path=/branches/ntvdm/; revision=60703
2013-10-19 16:55:51 +00:00
#include <fast486.h>
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
/* DEFINES ********************************************************************/
[SOFTX86] Fix jump conditions. [NTVDM] Implement BIOS teletype output command. Start implementation of a new CPU emulator to replace softx86. svn path=/branches/ntvdm/; revision=59450
2013-07-07 20:53:23 +00:00
/* FLAGS */
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
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#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)
[SOFTX86] Fix jump conditions. [NTVDM] Implement BIOS teletype output command. Start implementation of a new CPU emulator to replace softx86. svn path=/branches/ntvdm/; revision=59450
2013-07-07 20:53:23 +00:00
/* Common definitions */
[FAST486] Fix the type of a variable. [NTVDM] Introduce a BOP handler table for the 256 possible BOP functions and use it. svn path=/branches/ntvdm/; revision=60818
2013-11-01 02:28:47 +00:00
#define EMULATOR_BOP 0xC4C4
#define EMULATOR_INT_BOP 0xFF
#define EMULATOR_MAX_BOP_NUM 0xFF + 1
[FAST486][NTVDM] BOP numbers are 1 byte and map to a function (over 255). But one can pass additional "parameters" to those functions by adding extra bytes, however such functions must advance "by hand" the instruction pointer. [NTVDM] - Take into account our previous remark for the BIOS interrupt stubs, and comment them. - Rework EmulatorBiosOperation (move almost all of its existing code into subfunctions in bop.c) so that one can call many other BOP functions in the future (WIP). The BOP number (still called) EMULATOR_INT_BOP (of value 0xFF) is used for internal 16 --> 32 bit switching for our 32bit bios. - It appears that the IoRead/WriteCallback and IdleCallback must not be NULL for using fast486. I'm committing a temporary fix that I will definitely fix in a subsequent commit. svn path=/branches/ntvdm/; revision=60812
2013-11-01 00:01:07 +00:00
#define STACK_COUNTER 0
#define STACK_INT_NUM 1
#define STACK_IP 2
#define STACK_CS 3
#define STACK_FLAGS 4
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
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,
[SOFTX86] Fix jump conditions. [NTVDM] Implement BIOS teletype output command. Start implementation of a new CPU emulator to replace softx86. svn path=/branches/ntvdm/; revision=59450
2013-07-07 20:53:23 +00:00
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
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
};
[NTVDM] Fix bugs in video memory access emulation. Implement several missing INT 10h functions. Resize the console screen buffer on startup. svn path=/branches/ntvdm/; revision=59421
2013-07-03 23:38:51 +00:00
enum
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
{
EMULATOR_REG_AX,
EMULATOR_REG_CX,
EMULATOR_REG_DX,
EMULATOR_REG_BX,
EMULATOR_REG_SP,
EMULATOR_REG_BP,
[NTVDM] Fix several bugs: The file was not entirely read due to an integer overflow. The second WORD of the Program Segment Prefix (PSP) is not the number of allocated paragraphs, but the segment of the last paragraph. Fix the order of registers (SI and DI were mixed up with SP and BP). Implement interrupt 0x11. Implement redirection for reading/writing characters. svn path=/branches/ntvdm/; revision=59409
2013-07-02 02:08:30 +00:00
EMULATOR_REG_SI,
EMULATOR_REG_DI,
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
EMULATOR_REG_ES,
EMULATOR_REG_CS,
EMULATOR_REG_SS,
EMULATOR_REG_DS,
[SOFTX86] Fix jump conditions. [NTVDM] Implement BIOS teletype output command. Start implementation of a new CPU emulator to replace softx86. svn path=/branches/ntvdm/; revision=59450
2013-07-07 20:53:23 +00:00
EMULATOR_REG_FS,
EMULATOR_REG_GS
[NTVDM] Fix bugs in video memory access emulation. Implement several missing INT 10h functions. Resize the console screen buffer on startup. svn path=/branches/ntvdm/; revision=59421
2013-07-03 23:38:51 +00:00
};
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
Bye bye Soft386, welcome Fast486, courtesy Aleksandar Andrejevic. [NTVDM]: Define by default NEW_EMULATOR, i.e. use Fast486 instead of softx86. svn path=/branches/ntvdm/; revision=60703
2013-10-19 16:55:51 +00:00
extern FAST486_STATE EmulatorContext;
[SOFT386] Implement the LES and LDS instructions. Add optional support for BOPs (NTVDM-specific). Fix prefix handling in some functions. [NTVDM] Enable BOPs for Soft386 (when NEW_EMULATOR is defined). Fix the calling convention issue (softx86 uses cdecl, soft386 uses stdcall). svn path=/branches/ntvdm/; revision=60395
2013-09-28 00:29:16 +00:00
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
/* FUNCTIONS ******************************************************************/
[FAST486][NTVDM] - Introduce a Fast486Initialize which is used to set up the CPU callbacks (and use default ones if some of the given callbacks are NULL), and to reset it the first time. Now Fast486Reset is meant to be used for only resetting the CPU to a safe state. - Hence we are now sure that State->WhateverCallback is never NULL (and is theoretically valid), so don't do NULL-checks when calling them, but call them directly. The default cases for those checks become the default calls for the default callbacks. - Remove the now-unneeded EmulatorIdle function. svn path=/branches/ntvdm/; revision=60814
2013-11-01 01:46:58 +00:00
BOOLEAN EmulatorInitialize(VOID);
[NTVDM] Synchronize with trunk again to fix important bugs in the build system. Implement register control functions which should be exported (Adapted from a patch by Hermes Belusca-Maito). The actual export is temporarily disabled because a bug in the build system compiles ntvdm as a DLL instead of an EXE. svn path=/branches/ntvdm/; revision=59684
2013-08-09 23:52:08 +00:00
VOID EmulatorSetStack(WORD Segment, DWORD Offset);
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
VOID EmulatorExecute(WORD Segment, WORD Offset);
VOID EmulatorInterrupt(BYTE Number);
[FAST486] Separate external interrupts from interrupt signals (which are interrupts whose number is not known until they can be serviced, just like hardware interrupts on a real CPU). [NTVDM] Improve the PIC emulation code (IRQ priorities, etc...). Instead of checking for interrupts in the main loop, move the PS/2 input parsing to a different thread. Improve BIOS keyboard IRQ handling. svn path=/branches/ntvdm/; revision=60761
2013-10-27 00:37:01 +00:00
VOID EmulatorInterruptSignal(VOID);
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
ULONG EmulatorGetRegister(ULONG Register);
[NTVDM] Synchronize with trunk again to fix important bugs in the build system. Implement register control functions which should be exported (Adapted from a patch by Hermes Belusca-Maito). The actual export is temporarily disabled because a bug in the build system compiles ntvdm as a DLL instead of an EXE. svn path=/branches/ntvdm/; revision=59684
2013-08-09 23:52:08 +00:00
ULONG EmulatorGetProgramCounter(VOID);
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
VOID EmulatorSetRegister(ULONG Register, ULONG Value);
BOOLEAN EmulatorGetFlag(ULONG Flag);
VOID EmulatorSetFlag(ULONG Flag);
VOID EmulatorClearFlag(ULONG Flag);
[FAST486][NTVDM] - Introduce a Fast486Initialize which is used to set up the CPU callbacks (and use default ones if some of the given callbacks are NULL), and to reset it the first time. Now Fast486Reset is meant to be used for only resetting the CPU to a safe state. - Hence we are now sure that State->WhateverCallback is never NULL (and is theoretically valid), so don't do NULL-checks when calling them, but call them directly. The default cases for those checks become the default calls for the default callbacks. - Remove the now-unneeded EmulatorIdle function. svn path=/branches/ntvdm/; revision=60814
2013-11-01 01:46:58 +00:00
VOID EmulatorStep(VOID);
VOID EmulatorCleanup(VOID);
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
VOID EmulatorSetA20(BOOLEAN Enabled);
Fix formatting, no code changes. svn path=/branches/ntvdm/; revision=59682
2013-08-09 18:55:35 +00:00
#endif // _EMULATOR_H_
[NTVDM] Clean up the code and properly separate different modules into different files. svn path=/branches/ntvdm/; revision=59344
2013-06-26 22:58:41 +00:00
/* EOF */
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