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Bye bye Soft386, welcome Fast486, courtesy Aleksandar Andrejevic.

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[NTVDM]: Define by default NEW_EMULATOR, i.e. use Fast486 instead of softx86.

svn path=/branches/ntvdm/; revision=60703
This commit is contained in:
Hermès Bélusca-Maïto 2013-10-19 16:55:51 +00:00
parent 9b02129308
commit 51040fc61e
21 changed files with 2662 additions and 2662 deletions
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157
lib/fast486/common.h Normal file
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/*
* Fast486 386/486 CPU Emulation Library
* common.h
*
* Copyright (C) 2013 Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef _COMMON_H_
#define _COMMON_H_
/* DEFINES ********************************************************************/
#ifndef FASTCALL
#define FASTCALL __fastcall
#endif
#define SIGN_FLAG_BYTE 0x80
#define SIGN_FLAG_WORD 0x8000
#define SIGN_FLAG_LONG 0x80000000
#define REAL_MODE_FLAGS_MASK 0x17FD5
#define PROT_MODE_FLAGS_MASK 0x10DD5
/* Block size for string operations */
#define STRING_BLOCK_SIZE 4096
#define GET_SEGMENT_RPL(s) ((s) & 3)
#define GET_SEGMENT_INDEX(s) ((s) & 0xFFF8)
#define EXCEPTION_HAS_ERROR_CODE(x) (((x) == 8) || ((x) >= 10 && (x) <= 14))
#define PAGE_ALIGN(x) ((x) & 0xFFFFF000)
#define PAGE_OFFSET(x) ((x) & 0x00000FFF)
#ifndef PAGE_SIZE
#define PAGE_SIZE 4096
#endif
typedef struct _FAST486_MOD_REG_RM
{
FAST486_GEN_REGS Register;
BOOLEAN Memory;
union
{
FAST486_GEN_REGS SecondRegister;
ULONG MemoryAddress;
};
} FAST486_MOD_REG_RM, *PFAST486_MOD_REG_RM;
#pragma pack(push, 1)
typedef union _FAST486_PAGE_DIR
{
struct
{
ULONG Present : 1;
ULONG Writeable : 1;
ULONG Usermode : 1;
ULONG WriteThrough : 1;
ULONG NoCache : 1;
ULONG Accessed : 1;
ULONG AlwaysZero : 1;
ULONG Size : 1;
ULONG Unused : 4;
ULONG TableAddress : 20;
};
ULONG Value;
} FAST486_PAGE_DIR, *PFAST486_PAGE_DIR;
typedef union _FAST486_PAGE_TABLE
{
struct
{
ULONG Present : 1;
ULONG Writeable : 1;
ULONG Usermode : 1;
ULONG WriteThrough : 1;
ULONG NoCache : 1;
ULONG Accessed : 1;
ULONG Dirty : 1;
ULONG AlwaysZero : 1;
ULONG Global : 1;
ULONG Unused : 3;
ULONG Address : 20;
};
ULONG Value;
} FAST486_PAGE_TABLE, *PFAST486_PAGE_TABLE;
#pragma pack(pop)
/* FUNCTIONS ******************************************************************/
BOOLEAN
Fast486ReadMemory
(
PFAST486_STATE State,
FAST486_SEG_REGS SegmentReg,
ULONG Offset,
BOOLEAN InstFetch,
PVOID Buffer,
ULONG Size
);
BOOLEAN
Fast486WriteMemory
(
PFAST486_STATE State,
FAST486_SEG_REGS SegmentReg,
ULONG Offset,
PVOID Buffer,
ULONG Size
);
BOOLEAN
Fast486InterruptInternal
(
PFAST486_STATE State,
USHORT SegmentSelector,
ULONG Offset,
BOOLEAN InterruptGate
);
VOID
FASTCALL
Fast486ExceptionWithErrorCode
(
PFAST486_STATE State,
FAST486_EXCEPTIONS ExceptionCode,
ULONG ErrorCode
);
/* INLINED FUNCTIONS **********************************************************/
/* static */ FORCEINLINE
INT
Fast486GetCurrentPrivLevel(PFAST486_STATE State)
{
return GET_SEGMENT_RPL(State->SegmentRegs[FAST486_REG_CS].Selector);
}
#include "common.inl"
#endif // _COMMON_H_
/* EOF */