1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder.  You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *
37 * Authors: Gabe Black
38 */
39
40#ifndef __ARCH_X86_EMULENV_HH__
41#define __ARCH_X86_EMULENV_HH__
42
43#include "arch/x86/regs/int.hh"
44#include "arch/x86/regs/segment.hh"
45#include "arch/x86/registers.hh"
46#include "arch/x86/types.hh"
47
48namespace X86ISA
49{
50    struct EmulEnv
51    {
52        RegIndex reg;
53        RegIndex regm;
54        SegmentRegIndex seg;
55        uint8_t scale;
56        RegIndex index;
57        RegIndex base;
58        int dataSize;
59        int addressSize;
60        int stackSize;
61
62        EmulEnv(RegIndex _reg, RegIndex _regm,
63                int _dataSize, int _addressSize, int _stackSize) :
64            reg(_reg), regm(_regm), seg(SEGMENT_REG_DS),
65            scale(0), index(NUM_INTREGS),
66            base(NUM_INTREGS),
67            dataSize(_dataSize), addressSize(_addressSize),
68            stackSize(_stackSize)
69        {;}
70
71        void doModRM(const ExtMachInst & machInst);
72        void setSeg(const ExtMachInst & machInst);
73    };
74}
75
76#endif // __ARCH_X86_TYPES_HH__
77