macroop.hh revision 5788:6d4161a36ca1 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
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7 * following conditions are met:
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12 * examples of non-commercial use are academic research, personal study,
13 * teaching, education and corporate research & development.
14 * Illustrative examples of commercial use are distributing products for
15 * commercial advantage and providing services using the software for
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17 *
18 * If you wish to use this software or functionality therein that may be
19 * covered by patents for commercial use, please contact:
20 *     Director of Intellectual Property Licensing
21 *     Office of Strategy and Technology
22 *     Hewlett-Packard Company
23 *     1501 Page Mill Road
24 *     Palo Alto, California  94304
25 *
26 * Redistributions of source code must retain the above copyright notice,
27 * this list of conditions and the following disclaimer.  Redistributions
28 * in binary form must reproduce the above copyright notice, this list of
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33 * this software without specific prior written permission.  No right of
34 * sublicense is granted herewith.  Derivatives of the software and
35 * output created using the software may be prepared, but only for
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39 * and (ii) such Derivatives of the software include the above copyright
40 * notice to acknowledge the contribution from this software where
41 * applicable, this list of conditions and the disclaimer below.
42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_INSTS_MACROOP_HH__
59#define __ARCH_X86_INSTS_MACROOP_HH__
60
61#include "arch/x86/emulenv.hh"
62#include "arch/x86/types.hh"
63#include "arch/x86/insts/static_inst.hh"
64
65namespace X86ISA
66{
67// Base class for combinationally generated macroops
68class MacroopBase : public X86StaticInst
69{
70  protected:
71    const char *macrocodeBlock;
72
73    const uint32_t numMicroops;
74    X86ISA::EmulEnv env;
75
76    //Constructor.
77    MacroopBase(const char *mnem, ExtMachInst _machInst,
78            uint32_t _numMicroops, X86ISA::EmulEnv _env) :
79                X86StaticInst(mnem, _machInst, No_OpClass),
80                numMicroops(_numMicroops), env(_env)
81    {
82        assert(numMicroops);
83        microops = new StaticInstPtr[numMicroops];
84        flags[IsMacroop] = true;
85    }
86
87    ~MacroopBase()
88    {
89        delete [] microops;
90    }
91
92    StaticInstPtr * microops;
93
94    StaticInstPtr fetchMicroop(MicroPC microPC)
95    {
96        assert(microPC < numMicroops);
97        return microops[microPC];
98    }
99
100    std::string
101    generateDisassembly(Addr pc, const SymbolTable *symtab) const
102    {
103        return mnemonic;
104    }
105
106  public:
107    ExtMachInst
108    getExtMachInst()
109    {
110        return machInst;
111    }
112
113    X86ISA::EmulEnv
114    getEmulEnv()
115    {
116        return env;
117    }
118};
119}
120
121#endif //__ARCH_X86_INSTS_MACROOP_HH__
122