cpuid.isa revision 12234:78ece221f9f5 
1// Copyright (c) 2008 The Hewlett-Packard Development Company
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3//
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35//
36// Authors: Gabe Black
37
38output header {{
39    class CPUIDInst : public X86ISA::X86StaticInst
40    {
41      public:
42        static const RegIndex foldOBit = 0;
43        /// Constructor
44        CPUIDInst(const char *_mnemonic, ExtMachInst _machInst,
45                OpClass __opClass) :
46            X86ISA::X86StaticInst(_mnemonic, _machInst, __opClass)
47        {
48            flags[IsSerializing] = 1;
49            flags[IsSerializeAfter] = 1;
50        }
51
52        std::string generateDisassembly(Addr pc,
53                const SymbolTable *symtab) const;
54    };
55}};
56
57output decoder {{
58    std::string CPUIDInst::generateDisassembly(Addr PC,
59            const SymbolTable *symtab) const
60    {
61        std::stringstream response;
62
63        printMnemonic(response, mnemonic);
64        ccprintf(response, " ");
65        printReg(response, _srcRegIdx[0], machInst.opSize);
66        return response.str();
67    }
68}};
69
70def template CPUIDExecute {{
71    Fault %(class_name)s::execute(ExecContext *xc,
72            Trace::InstRecord *traceData) const
73    {
74        // If the CPUID instruction used a valid function number, this will
75        // be set to true. Otherwise, the instruction does nothing.
76        %(op_decl)s;
77        %(op_rd)s;
78        %(code)s;
79        %(op_wb)s;
80        return NoFault;
81    }
82}};
83
84def format CPUIDInst(code, *opt_flags) {{
85    iop = InstObjParams(name, Name, 'CPUIDInst', code, opt_flags)
86    header_output = BasicDeclare.subst(iop)
87    decoder_output = BasicConstructor.subst(iop)
88    decode_block = BasicDecode.subst(iop)
89    exec_output = CPUIDExecute.subst(iop)
90}};
91
92