1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 *          Steve Reinhardt
30 */
31
32#ifndef __ARCH_SPARC_INSTS_UNKNOWN_HH__
33#define __ARCH_SPARC_INSTS_UNKNOWN_HH__
34
35#include "arch/sparc/insts/static_inst.hh"
36
37namespace SparcISA
38{
39
40/**
41 * Class for Unknown/Illegal instructions
42 */
43class Unknown : public SparcStaticInst
44{
45  public:
46
47    // Constructor
48    Unknown(ExtMachInst _machInst) :
49            SparcStaticInst("unknown", _machInst, No_OpClass)
50    {}
51
52    Fault
53    execute(ExecContext *, Trace::InstRecord *) const override
54    {
55        return std::make_shared<IllegalInstruction>();
56    }
57
58    std::string
59    generateDisassembly(Addr pc, const SymbolTable *symtab) const override
60    {
61        return "Unknown instruction";
62    }
63
64};
65
66}
67
68#endif // __ARCH_SPARC_INSTS_UNKNOWN_HH__
69