macroop.hh revision 5786:07f635cab026 
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
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5 * Redistribution and use of this software in source and binary forms,
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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
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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 StaticInst
69{
70  protected:
71    const uint32_t numMicroops;
72    X86ISA::EmulEnv emulEnv;
73
74    //Constructor.
75    MacroopBase(const char *mnem, ExtMachInst _machInst,
76            uint32_t _numMicroops, X86ISA::EmulEnv _emulEnv)
77                : StaticInst(mnem, _machInst, No_OpClass),
78                numMicroops(_numMicroops), emulEnv(_emulEnv)
79    {
80        assert(numMicroops);
81        microops = new StaticInstPtr[numMicroops];
82        flags[IsMacroop] = true;
83    }
84
85    ~MacroopBase()
86    {
87        delete [] microops;
88    }
89
90    StaticInstPtr * microops;
91
92    StaticInstPtr fetchMicroop(MicroPC microPC)
93    {
94        assert(microPC < numMicroops);
95        return microops[microPC];
96    }
97
98    std::string generateDisassembly(Addr pc,
99            const SymbolTable *symtab) const
100    {
101        return mnemonic;
102    }
103
104  public:
105    ExtMachInst
106    getExtMachInst()
107    {
108        return machInst;
109    }
110
111    X86ISA::EmulEnv
112    getEmulEnv()
113    {
114        return emulEnv;
115    }
116};
117}
118
119#endif //__ARCH_X86_INSTS_MACROOP_HH__
120