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//// @file
//
// Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions
// of the BSD License which accompanies this distribution. The
// full text of the license may be found at
// http://opensource.org/licenses/bsd-license.php
//
// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
//
////
#define NUM_REAL_GDT_ENTRIES 3
#define LOW_STACK_SIZE (8*1024) // 8k?
//
// Low memory Thunk Structure
//
#define Code 0
#define LowReverseThunkStart Code + 4096
#define GdtDesc LowReverseThunkStart + 4
#define IdtDesc GdtDesc + 6
#define FlatSs IdtDesc + 6
#define FlatEsp FlatSs + 4
#define LowCodeSelector FlatEsp + 4
#define LowDataSelector LowCodeSelector + 4
#define LowStack LowDataSelector + 4
#define RealModeIdtDesc LowStack + 4
#define RealModeGdt RealModeIdtDesc + 6
#define RealModeGdtDesc RealModeGdt + (8 * NUM_REAL_GDT_ENTRIES)
#define RevRealDs RealModeGdtDesc + 6
#define RevRealSs RevRealDs + 2
#define RevRealEsp RevRealSs + 2
#define RevRealIdtDesc RevRealEsp + 4
#define RevFlatDataSelector RevRealIdtDesc + 6
#define RevFlatStack RevFlatDataSelector + 2
#define Stack RevFlatStack + 4
#define RevThunkStack Stack + LOW_STACK_SIZE
#define EfiToLegacy16InitTable RevThunkStack + LOW_STACK_SIZE
#define InitTableBiosLessThan1MB EfiToLegacy16InitTable
#define InitTableHiPmmMemory InitTableBiosLessThan1MB + 4
#define InitTablePmmMemorySizeInBytes InitTableHiPmmMemory + 4
#define InitTableReverseThunkCallSegment InitTablePmmMemorySizeInBytes + 4
#define InitTableReverseThunkCallOffset InitTableReverseThunkCallSegment + 2
#define InitTableNumberE820Entries InitTableReverseThunkCallOffset + 2
#define InitTableOsMemoryAbove1Mb InitTableNumberE820Entries + 4
#define InitTableThunkStart InitTableOsMemoryAbove1Mb + 4
#define InitTableThunkSizeInBytes InitTableThunkStart + 4
#define InitTable16InitTableEnd InitTableThunkSizeInBytes + 4
#define EfiToLegacy16BootTable InitTable16InitTableEnd
#define BootTableBiosLessThan1MB EfiToLegacy16BootTable
#define BootTableHiPmmMemory BootTableBiosLessThan1MB + 4
#define BootTablePmmMemorySizeInBytes BootTableHiPmmMemory + 4
#define BootTableReverseThunkCallSegment BootTablePmmMemorySizeInBytes + 4
#define BootTableReverseThunkCallOffset BootTableReverseThunkCallSegment + 2
#define BootTableNumberE820Entries BootTableReverseThunkCallOffset + 2
#define BootTableOsMemoryAbove1Mb BootTableNumberE820Entries + 4
#define BootTableThunkStart BootTableOsMemoryAbove1Mb + 4
#define BootTableThunkSizeInBytes BootTableThunkStart + 4
#define EfiToLegacy16BootTableEnd BootTableThunkSizeInBytes + 4
#define InterruptRedirectionCode EfiToLegacy16BootTableEnd
#define PciHandler InterruptRedirectionCode + 32
//
// Register Sets (16 Bit)
//
#define AX 0
#define BX 2
#define CX 4
#define DX 6
#define SI 8
#define DI 10
#define Flags 12
#define ES 14
#define CS 16
#define SS 18
#define DS 20
#define BP 22
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