1/*
2 * Copyright (c) 2006-2007 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////////////////////////////////////////////////////////////////////
33//
34// Trap instructions
35//
36
37#ifndef __ARCH_SPARC_INSTS_TRAP_HH__
38#define __ARCH_SPARC_INSTS_TRAP_HH__
39
40#include "arch/sparc/insts/static_inst.hh"
41
42namespace SparcISA
43{
44
45/**
46 * Base class for trap instructions,
47 * or instructions that always fault.
48 */
49class Trap : public SparcStaticInst
50{
51  protected:
52
53    // Constructor
54    Trap(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
55        SparcStaticInst(mnem, _machInst, __opClass),
56        trapNum(bits(_machInst, 7, 0))
57    {}
58
59    std::string generateDisassembly(
60            Addr pc, const SymbolTable *symtab) const override;
61
62    int trapNum;
63};
64
65class FpUnimpl : public SparcStaticInst
66{
67  protected:
68    using SparcStaticInst::SparcStaticInst;
69
70    std::string
71    generateDisassembly(Addr pc,  const SymbolTable *symtab) const override
72    {
73        return mnemonic;
74    }
75};
76
77}
78
79#endif // __ARCH_SPARC_INSTS_TRAP_HH__
80