static_inst.hh revision 12616:4b463b4dc098 
1/*
2 * Copyright (c) 2009 The University of Edinburgh
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: Timothy M. Jones
29 */
30
31#ifndef __ARCH_POWER_INSTS_STATICINST_HH__
32#define __ARCH_POWER_INSTS_STATICINST_HH__
33
34#include "base/trace.hh"
35#include "cpu/static_inst.hh"
36
37namespace PowerISA
38{
39
40class PowerStaticInst : public StaticInst
41{
42  protected:
43
44    // Constructor
45    PowerStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
46        : StaticInst(mnem, _machInst, __opClass)
47    {
48    }
49
50    // Insert a condition value into a CR (condition register) field
51    inline uint32_t
52    insertCRField(uint32_t cr, uint32_t bf, uint32_t value) const
53    {
54        uint32_t bits = value << ((7 - bf) * 4);
55        uint32_t mask = ~(0xf << ((7 - bf) * 4));
56        return (cr & mask) | bits;
57    }
58
59    /// Print a register name for disassembly given the unique
60    /// dependence tag number (FP or int).
61    void
62    printReg(std::ostream &os, RegId reg) const;
63
64    std::string generateDisassembly(
65            Addr pc, const SymbolTable *symtab) const override;
66
67    void
68    advancePC(PowerISA::PCState &pcState) const override
69    {
70        pcState.advance();
71    }
72
73    size_t
74    asBytes(void *buf, size_t max_size) override
75    {
76        return simpleAsBytes(buf, max_size, machInst);
77    }
78};
79
80} // namespace PowerISA
81
82#endif //__ARCH_POWER_INSTS_STATICINST_HH__
83