src/arch/x86/isa/microops/specop.isa

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  53 //
  54 // Authors: Gabe Black
  55
  56 //////////////////////////////////////////////////////////////////////////
  57 //
  58 // Fault Microop
  59 //
  60 //////////////////////////////////////////////////////////////////////////
  61
  62 output header {{
  63     class MicroFault : public X86ISA::X86MicroopBase
  64     {
  65       protected:
  66         Fault fault;
  67         void buildMe();
  68
  69       public:
  70         MicroFault(ExtMachInst _machInst, const char * instMnem,
  71                 bool isMicro, bool isDelayed, bool isFirst, bool isLast,
  72                 Fault _fault);
  73
  74         MicroFault(ExtMachInst _machInst, const char * instMnem,
  75                 Fault _fault);
  76
  77         %(BasicExecDeclare)s
  78
  79         std::string generateDisassembly(Addr pc,
  80                 const SymbolTable *symtab) const;
  81     };
  82 }};
  83
  84 output decoder {{
  85         Fault MicroFault::execute(%(CPU_exec_context)s *xc,
  86                 Trace::InstRecord *traceData) const
  87         {
  88             //Return the fault we were constructed with
  89             return fault;
  90         }
  91 }};
  92
  93 output decoder {{
  94     inline MicroFault::MicroFault(
  95             ExtMachInst machInst, const char * instMnem, Fault _fault) :
  96         X86MicroopBase(machInst, "fault", instMnem,
  97                 false, false, false, false, No_OpClass), fault(_fault)
  98     {
  99     }
 100
 101     inline MicroFault::MicroFault(
 102             ExtMachInst machInst, const char * instMnem,
 103             bool isMicro, bool isDelayed, bool isFirst, bool isLast,
 104             Fault _fault) :
 105         X86MicroopBase(machInst, "fault", instMnem,
 106                 isMicro, isDelayed, isFirst, isLast, No_OpClass),
 107                 fault(_fault)
 108     {
 109     }
 110 }};
 111
 112 output decoder {{
 113     std::string MicroFault::generateDisassembly(Addr pc,
 114             const SymbolTable *symtab) const
 115     {
 116         std::stringstream response;
 117
 118         printMnemonic(response, instMnem, mnemonic);
 119         if(fault)
 120             response << fault->name();
 121         else
 122             response << "No Fault";
 123
 124         return response.str();
 125     }
 126 }};
 127
 128 let {{
 129     class Fault(X86Microop):
 130         def __init__(self, fault):
 131             self.fault = fault
 132
 133         def getAllocator(self, *microFlags):
 134             allocator = '''new MicroFault(machInst, mnemonic
 135                     %(flags)s, %(fault)s)''' % {
 136                 "flags" : self.microFlagsText(microFlags),
 137                 "fault" : self.fault}
 138             return allocator
 139     microopClasses["fault"] = Fault
 140 }};