isa_traits.hh (9329:3fe8438cbcfc) isa_traits.hh (10318:98771a936b61)
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_ISATRAITS_HH__
41#define __ARCH_X86_ISATRAITS_HH__
42
43#include "arch/x86/types.hh"
44#include "arch/x86/x86_traits.hh"
45#include "base/types.hh"
46
47namespace LittleEndianGuest {}
48
49namespace X86ISA
50{
51 //This makes sure the little endian version of certain functions
52 //are used.
53 using namespace LittleEndianGuest;
54
55 // X86 does not have a delay slot
56#define ISA_HAS_DELAY_SLOT 0
57
58 // X86 NOP (XCHG rAX, rAX)
59 //XXX This needs to be set to an intermediate instruction struct
60 //which encodes this instruction
61
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_ISATRAITS_HH__
41#define __ARCH_X86_ISATRAITS_HH__
42
43#include "arch/x86/types.hh"
44#include "arch/x86/x86_traits.hh"
45#include "base/types.hh"
46
47namespace LittleEndianGuest {}
48
49namespace X86ISA
50{
51 //This makes sure the little endian version of certain functions
52 //are used.
53 using namespace LittleEndianGuest;
54
55 // X86 does not have a delay slot
56#define ISA_HAS_DELAY_SLOT 0
57
58 // X86 NOP (XCHG rAX, rAX)
59 //XXX This needs to be set to an intermediate instruction struct
60 //which encodes this instruction
61
62 //4k. This value is not constant on x86.
63 const int LogVMPageSize = 12;
64 const int VMPageSize = (1 << LogVMPageSize);
62 const Addr PageShift = 12;
63 const Addr PageBytes = ULL(1) << PageShift;
65
64
66 const int PageShift = 12;
67 const int PageBytes = 1ULL << PageShift;
68
69 const int BranchPredAddrShiftAmt = 0;
70
71 // Memory accesses can be unaligned
72 const bool HasUnalignedMemAcc = true;
73
74 const bool CurThreadInfoImplemented = false;
75 const int CurThreadInfoReg = -1;
76
77 const ExtMachInst NoopMachInst = {
78 0x0, // No legacy prefixes.
79 0x0, // No rex prefix.
80 { 1, 0x0, 0x0, 0x90 }, // One opcode byte, 0x90.
81 0x0, 0x0, // No modrm or sib.
82 0, 0, // No immediate or displacement.
83 8, 8, 8, // All sizes are 8.
84 0, // Displacement size is 0.
85 SixtyFourBitMode // Behave as if we're in 64 bit
86 // mode (this doesn't actually matter).
87 };
88}
89
90#endif // __ARCH_X86_ISATRAITS_HH__
65 // Memory accesses can be unaligned
66 const bool HasUnalignedMemAcc = true;
67
68 const bool CurThreadInfoImplemented = false;
69 const int CurThreadInfoReg = -1;
70
71 const ExtMachInst NoopMachInst = {
72 0x0, // No legacy prefixes.
73 0x0, // No rex prefix.
74 { 1, 0x0, 0x0, 0x90 }, // One opcode byte, 0x90.
75 0x0, 0x0, // No modrm or sib.
76 0, 0, // No immediate or displacement.
77 8, 8, 8, // All sizes are 8.
78 0, // Displacement size is 0.
79 SixtyFourBitMode // Behave as if we're in 64 bit
80 // mode (this doesn't actually matter).
81 };
82}
83
84#endif // __ARCH_X86_ISATRAITS_HH__