mirror of
https://github.com/reactos/reactos.git
synced 2025-04-21 04:37:15 +00:00
[SOFT386]
Start implementing a new emulator library to provide 386/486 emulation support to NTVDM and perhaps other components aswell. svn path=/branches/ntvdm/; revision=59752
This commit is contained in:
Aleksandar Andrejevic
parent
ec58bdeae3
commit
005e1f0559
5 changed files with 421 additions and 1 deletions
294
include/reactos/libs/soft386/soft386.h
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294
include/reactos/libs/soft386/soft386.h
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/*
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* COPYRIGHT: GPL - See COPYING in the top level directory
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* PROJECT: 386/486 CPU Emulation Library
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* FILE: soft386.h
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* PURPOSE: Header file for Soft386.
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* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
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*/
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#ifndef _SOFT386_H_
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#define _SOFT386_H_
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/* INCLUDES *******************************************************************/
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#include <windows.h>
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#include <debug.h>
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/* DEFINES ********************************************************************/
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#define SOFT386_NUM_GEN_REGS 8
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#define SOFT386_NUM_SEG_REGS 6
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#define SOFT386_NUM_CTRL_REGS 8
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#define SOFT386_NUM_DBG_REGS 8
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#define SOFT386_CR0_PE (1 << 0)
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#define SOFT386_CR0_MP (1 << 1)
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#define SOFT386_CR0_EM (1 << 2)
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#define SOFT386_CR0_TS (1 << 3)
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#define SOFT386_CR0_ET (1 << 4)
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#define SOFT386_CR0_NE (1 << 5)
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#define SOFT386_CR0_WP (1 << 16)
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#define SOFT386_CR0_AM (1 << 18)
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#define SOFT386_CR0_NW (1 << 29)
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#define SOFT386_CR0_CD (1 << 30)
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#define SOFT386_CR0_PG (1 << 31)
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struct _SOFT386_STATE;
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typedef struct _SOFT386_STATE SOFT386_STATE;
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typedef struct _SOFT386_STATE *PSOFT386_STATE;
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enum _SOFT386_GEN_REGS
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{
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SOFT386_REG_EAX,
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SOFT386_REG_ECX,
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SOFT386_REG_EDX,
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SOFT386_REG_EBX,
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SOFT386_REG_ESP,
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SOFT386_REG_EBP,
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SOFT386_REG_ESI,
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SOFT386_REG_EDI
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};
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enum _SOFT386_SEG_REGS
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{
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SOFT386_REG_ES,
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SOFT386_REG_CS,
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SOFT386_REG_SS,
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SOFT386_REG_DS,
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SOFT386_REG_FS,
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SOFT386_REG_GS
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};
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enum _SOFT386_CTRL_REGS
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{
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SOFT386_REG_CR0,
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SOFT386_REG_CR1,
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SOFT386_REG_CR2,
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SOFT386_REG_CR3,
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SOFT386_REG_CR4,
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SOFT386_REG_CR5,
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SOFT386_REG_CR6,
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SOFT386_REG_CR7
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};
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enum _SOFT386_DBG_REGS
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{
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SOFT386_REG_DR0,
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SOFT386_REG_DR1,
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SOFT386_REG_DR2,
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SOFT386_REG_DR3,
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SOFT386_REG_DR4,
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SOFT386_REG_DR5,
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SOFT386_REG_DR6,
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SOFT386_REG_DR7
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};
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typedef
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BOOLEAN
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(NTAPI *SOFT386_MEM_READ_PROC)
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(
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PSOFT386_STATE State,
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ULONG Address,
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LPVOID Buffer,
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ULONG Size
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);
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typedef
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BOOLEAN
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(NTAPI *SOFT386_MEM_WRITE_PROC)
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(
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PSOFT386_STATE State,
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ULONG Address,
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LPVOID Buffer,
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ULONG Size
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);
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typedef
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VOID
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(NTAPI *SOFT386_IO_READ_PROC)
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(
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PSOFT386_STATE State,
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ULONG Port,
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LPVOID Buffer,
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ULONG Size
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);
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typedef
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VOID
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(NTAPI *SOFT386_IO_WRITE_PROC)
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(
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PSOFT386_STATE State,
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ULONG Port,
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LPVOID Buffer,
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ULONG Size
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);
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typedef union _SOFT386_REG
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{
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struct
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{
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UCHAR LowByte;
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UCHAR HighByte;
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};
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USHORT LowWord;
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ULONG Long;
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} SOFT386_REG, *PSOFT386_REG;
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typedef struct _SOFT386_SEG_REG
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{
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USHORT Selector;
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/* Descriptor cache */
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ULONG Accessed : 1;
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ULONG ReadWrite : 1;
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ULONG DirConf : 1;
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ULONG Executable : 1;
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ULONG SystemType : 1;
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ULONG Dpl : 2;
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ULONG Present : 1;
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ULONG Size : 1;
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ULONG Limit;
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ULONG Base;
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} SOFT386_SEG_REG, *PSOFT386_SEG_REG;
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typedef struct
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{
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ULONG Limit : 16;
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ULONG Base : 24;
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ULONG Accessed : 1;
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ULONG ReadWrite : 1;
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ULONG DirConf : 1;
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ULONG Executable : 1;
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ULONG SystemType : 1;
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ULONG Dpl : 2;
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ULONG Present : 1;
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ULONG LimitHigh : 4;
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ULONG Avl : 1;
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ULONG Reserved : 1;
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ULONG Size : 1;
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ULONG Granularity : 1;
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ULONG BaseHigh : 8;
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} SOFT386_GDT_ENTRY;
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typedef struct
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{
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ULONG Offset : 16;
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ULONG Selector : 16;
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ULONG Zero : 8;
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ULONG Type : 4;
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ULONG Storage : 1;
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ULONG Dpl : 2;
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ULONG Present : 1;
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ULONG OffsetHigh : 16;
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} SOFT386_IDT_ENTRY;
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typedef struct _SOFT386_TABLE_REG
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{
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USHORT Size;
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ULONG Address;
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} SOFT386_TABLE_REG, *PSOFT386_TABLE_REG;
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typedef union _SOFT386_FLAGS_REG
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{
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ULONG Long;
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struct
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{
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ULONG Cf : 1;
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ULONG AlwaysSet : 1;
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ULONG Pf : 1;
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ULONG Reserved0 : 1;
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ULONG Af : 1;
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ULONG Reserved1 : 1;
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ULONG Zf : 1;
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ULONG Sf : 1;
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ULONG Tf : 1;
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ULONG If : 1;
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ULONG Df : 1;
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ULONG Of : 1;
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ULONG Iopl : 2;
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ULONG Nt : 1;
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ULONG Reserved2 : 1;
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ULONG Rf : 1;
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ULONG Vm : 1;
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ULONG Ac : 1;
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ULONG Vif : 1;
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ULONG Vip : 1;
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ULONG Id : 1;
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};
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} SOFT386_FLAGS_REG, *PSOFT386_FLAGS_REG;
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typedef struct _SOFT386_TSS
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{
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ULONG Link;
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ULONG Esp0;
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ULONG Ss0;
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ULONG Esp1;
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ULONG Ss1;
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ULONG Esp2;
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ULONG Ss2;
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ULONG Cr3;
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ULONG Eip;
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ULONG Eflags;
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ULONG Eax;
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ULONG Ecx;
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ULONG Edx;
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ULONG Ebx;
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ULONG Esp;
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ULONG Ebp;
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ULONG Esi;
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ULONG Edi;
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ULONG Es;
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ULONG Cs;
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ULONG Ss;
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ULONG Ds;
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ULONG Fs;
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ULONG Gs;
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ULONG Ldtr;
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ULONG IopbOffset;
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} SOFT386_TSS, *PSOFT386_TSS;
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struct _SOFT386_STATE
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{
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SOFT386_MEM_READ_PROC MemReadCallback;
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SOFT386_MEM_WRITE_PROC MemWriteCallback;
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SOFT386_IO_READ_PROC IoReadCallback;
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SOFT386_IO_WRITE_PROC IoWriteCallback;
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SOFT386_REG GeneralRegs[SOFT386_NUM_GEN_REGS];
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SOFT386_SEG_REG SegmentRegs[SOFT386_NUM_SEG_REGS];
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SOFT386_REG InstPtr;
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SOFT386_FLAGS_REG Flags;
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SOFT386_TABLE_REG Gdtr, Idtr, Ldtr, Tss;
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ULONGLONG TimeStampCounter;
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ULONG ControlRegisters[SOFT386_NUM_CTRL_REGS];
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ULONG DebugRegisters[SOFT386_NUM_DBG_REGS];
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};
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/* FUNCTIONS ******************************************************************/
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VOID
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NTAPI
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Soft386Continue(PSOFT386_STATE State);
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VOID
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NTAPI
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Soft386StepInto(PSOFT386_STATE State);
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VOID
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NTAPI
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Soft386StepOver(PSOFT386_STATE State);
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VOID
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NTAPI
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Soft386StepOut(PSOFT386_STATE State);
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VOID
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NTAPI
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Soft386DumpState(PSOFT386_STATE State);
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VOID
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NTAPI
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Soft386Reset(PSOFT386_STATE State);
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#endif // _SOFT386_H_
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/* EOF */
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@ -20,6 +20,7 @@ add_subdirectory(rtl)
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add_subdirectory(sdk)
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add_subdirectory(smlib)
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add_subdirectory(tdilib)
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add_subdirectory(soft386)
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else()
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6
lib/soft386/CMakeLists.txt
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6
lib/soft386/CMakeLists.txt
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include_directories(${REACTOS_SOURCE_DIR}/include/reactos/libs/soft386)
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list(APPEND SOURCE
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soft386.c)
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add_library(soft386 ${SOURCE})
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118
lib/soft386/soft386.c
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118
lib/soft386/soft386.c
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/*
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* COPYRIGHT: GPL - See COPYING in the top level directory
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* PROJECT: 386/486 CPU Emulation Library
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* FILE: soft386.c
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* PURPOSE: Functions meant for use by the host.
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* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
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*/
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/* INCLUDES *******************************************************************/
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#include "soft386.h"
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/* DEFINES ********************************************************************/
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typedef enum
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{
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SOFT386_STEP_INTO,
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SOFT386_STEP_OVER,
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SOFT386_STEP_OUT,
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SOFT386_CONTINUE
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} SOFT386_EXEC_CMD;
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/* PRIVATE FUNCTIONS **********************************************************/
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static
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VOID
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NTAPI
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Soft386ExecutionControl(PSOFT386_STATE State, INT Command)
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{
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// TODO: NOT IMPLEMENTED!!!
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UNIMPLEMENTED;
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}
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/* PUBLIC FUNCTIONS ***********************************************************/
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VOID
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NTAPI
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Soft386Continue(PSOFT386_STATE State)
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{
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/* Call the internal function */
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Soft386ExecutionControl(State, SOFT386_CONTINUE);
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}
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VOID
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NTAPI
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Soft386StepInto(PSOFT386_STATE State)
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{
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/* Call the internal function */
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Soft386ExecutionControl(State, SOFT386_STEP_INTO);
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}
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VOID
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NTAPI
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Soft386StepOver(PSOFT386_STATE State)
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{
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/* Call the internal function */
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Soft386ExecutionControl(State, SOFT386_STEP_OVER);
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}
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VOID
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NTAPI
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Soft386StepOut(PSOFT386_STATE State)
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{
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/* Call the internal function */
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Soft386ExecutionControl(State, SOFT386_STEP_OUT);
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}
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VOID
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NTAPI
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Soft386DumpState(PSOFT386_STATE State)
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{
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// TODO: NOT IMPLEMENTED!!!
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UNIMPLEMENTED;
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}
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VOID
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NTAPI
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Soft386Reset(PSOFT386_STATE State)
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{
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INT i;
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SOFT386_MEM_READ_PROC MemReadCallback = State->MemReadCallback;
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SOFT386_MEM_WRITE_PROC MemWriteCallback = State->MemWriteCallback;
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SOFT386_IO_READ_PROC IoReadCallback = State->IoReadCallback;
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SOFT386_IO_WRITE_PROC IoWriteCallback = State->IoWriteCallback;
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/* Clear the entire structure */
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RtlZeroMemory(State, sizeof(*State));
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/* Initialize the registers */
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State->Flags.AlwaysSet = 1;
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State->InstPtr.LowWord = 0xFFF0;
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/* Initialize segments */
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for (i = 0; i < SOFT386_NUM_SEG_REGS; i++)
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{
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/* Set the selector, base and limit, other values don't apply in real mode */
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State->SegmentRegs[i].Selector = 0;
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State->SegmentRegs[i].Base = 0;
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State->SegmentRegs[i].Limit = 0xFFFF;
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}
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/* Initialize the code segment */
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State->SegmentRegs[SOFT386_REG_CS].Selector = 0xF000;
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State->SegmentRegs[SOFT386_REG_CS].Base = 0xFFFF0000;
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/* Initialize the IDT */
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State->Idtr.Size = 0x3FF;
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State->Idtr.Address = 0;
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/* Initialize CR0 */
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State->ControlRegisters[0] |= SOFT386_CR0_ET;
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/* Restore the callbacks */
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State->MemReadCallback = MemReadCallback;
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State->MemWriteCallback = MemWriteCallback;
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State->IoReadCallback = IoReadCallback;
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State->IoWriteCallback = IoWriteCallback;
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}
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@ -1,5 +1,6 @@
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include_directories(${REACTOS_SOURCE_DIR}/include/reactos/libs/softx86)
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include_directories(${REACTOS_SOURCE_DIR}/include/reactos/libs/soft386)
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spec2def(ntvdm.exe ntvdm.spec)
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@ -18,7 +19,7 @@ list(APPEND SOURCE
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add_executable(ntvdm ${SOURCE})
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set_module_type(ntvdm win32cui UNICODE)
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target_link_libraries(ntvdm softx86 softx87)
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target_link_libraries(ntvdm softx86 softx87 soft386)
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add_importlibs(ntvdm msvcrt user32 gdi32 kernel32 ntdll)
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add_dependencies(ntvdm softx86 softx87)
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add_cd_file(TARGET ntvdm DESTINATION reactos/system32 FOR all)
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