1// Copyright (c) 2007 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// The license below extends only to copyright in the software and shall
5// not be construed as granting a license to any other intellectual
6// property including but not limited to intellectual property relating
7// to a hardware implementation of the functionality of the software
8// licensed hereunder. You may use the software subject to the license
9// terms below provided that you ensure that this notice is replicated
10// unmodified and in its entirety in all distributions of the software,
11// modified or unmodified, in source code or in binary form.
12//
13// Copyright (c) 2007 The Regents of The University of Michigan
14// All rights reserved.
15//
16// Redistribution and use in source and binary forms, with or without
17// modification, are permitted provided that the following conditions are
18// met: redistributions of source code must retain the above copyright
19// notice, this list of conditions and the following disclaimer;
20// redistributions in binary form must reproduce the above copyright
21// notice, this list of conditions and the following disclaimer in the
22// documentation and/or other materials provided with the distribution;
23// neither the name of the copyright holders nor the names of its
24// contributors may be used to endorse or promote products derived from
25// this software without specific prior written permission.
26//
27// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
34// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38//
39// Authors: Gabe Black
40
41////////////////////////////////////////////////////////////////////
42//
43// Unknown instructions
44//
45
46output header {{
47 /**
48 * Class for Unknown/Illegal instructions
49 */
50 class Unknown : public StaticInst
51 {
52 public:
53
54 // Constructor
55 Unknown(ExtMachInst _machInst) :
56 StaticInst("unknown", _machInst, No_OpClass)
57 {
58 }
59
60 %(BasicExecDeclare)s
61
62 std::string generateDisassembly(Addr pc,
63 const SymbolTable *symtab) const;
64
65 };
66}};
67
68output decoder {{
69 std::string Unknown::generateDisassembly(Addr pc,
70 const SymbolTable *symtab) const
71 {
72 return "Unknown instruction";
73 }
74}};
75
76output exec {{
77 Fault Unknown::execute(%(CPU_exec_context)s *xc,
78 Trace::InstRecord *traceData) const
79 {
80 warn("No instructions are implemented for X86!\n");
81 return NoFault;
82 }
83}};
84
85def format Unknown() {{
86 decode_block = 'return new Unknown(machInst);\n'
87}};