isa.hh revision 11963 
1/*
2 * Copyright (c) 2009 The Regents of The University of Michigan
3 * Copyright (c) 2009 The University of Edinburgh
4 * Copyright (c) 2014 Sven Karlsson
5 * Copyright (c) 2016 RISC-V Foundation
6 * Copyright (c) 2016 The University of Virginia
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are
11 * met: redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer;
13 * redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution;
16 * neither the name of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * Authors: Gabe Black
33 *          Timothy M. Jones
34 *          Sven Karlsson
35 *          Alec Roelke
36 */
37
38#ifndef __ARCH_RISCV_ISA_HH__
39#define __ARCH_RISCV_ISA_HH__
40
41#include <map>
42#include <string>
43
44#include "arch/riscv/registers.hh"
45#include "arch/riscv/types.hh"
46#include "base/misc.hh"
47#include "sim/sim_object.hh"
48
49struct RiscvISAParams;
50class ThreadContext;
51class Checkpoint;
52class EventManager;
53
54namespace RiscvISA
55{
56
57class ISA : public SimObject
58{
59  protected:
60    std::vector<MiscReg> miscRegFile;
61    std::map<int, std::string> miscRegNames;
62
63  public:
64    typedef RiscvISAParams Params;
65
66    void
67    clear();
68
69    MiscReg
70    readMiscRegNoEffect(int misc_reg) const;
71
72    MiscReg
73    readMiscReg(int misc_reg, ThreadContext *tc);
74
75    void
76    setMiscRegNoEffect(int misc_reg, const MiscReg &val);
77
78    void
79    setMiscReg(int misc_reg, const MiscReg &val, ThreadContext *tc);
80
81    int
82    flattenIntIndex(int reg) const
83    {
84        return reg;
85    }
86
87    int
88    flattenFloatIndex(int reg) const
89    {
90        return reg;
91    }
92
93    // dummy
94    int
95    flattenCCIndex(int reg) const
96    {
97        return reg;
98    }
99
100    int
101    flattenMiscIndex(int reg) const
102    {
103        return reg;
104    }
105
106    void startup(ThreadContext *tc) {}
107
108    /// Explicitly import the otherwise hidden startup
109    using SimObject::startup;
110
111    const Params *
112    params() const;
113
114    ISA(Params *p);
115};
116
117} // namespace RiscvISA
118
119#endif // __ARCH_RISCV_ISA_HH__
120