62 lines
1.7 KiB
Text
62 lines
1.7 KiB
Text
////////////////////////////////////////////////////////////////////
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//
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// Branch instructions
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//
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output header {{
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/**
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* Base class for integer operations.
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*/
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class Branch : public SparcStaticInst
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{
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protected:
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// Constructor
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Branch(const char *mnem, MachInst _machInst, OpClass __opClass) :
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SparcStaticInst(mnem, _machInst, __opClass)
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{
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}
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std::string generateDisassembly(Addr pc,
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const SymbolTable *symtab) const;
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};
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}};
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output decoder {{
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std::string Branch::generateDisassembly(Addr pc, const SymbolTable *symtab) const
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{
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return "Branch instruction\n";
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}
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}};
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def template BranchExecute {{
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Fault %(class_name)s::execute(%(CPU_exec_context)s *xc,
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Trace::InstRecord *traceData) const
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{
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//Attempt to execute the instruction
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Fault fault = NoFault;
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checkPriv;
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%(op_decl)s;
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%(op_rd)s;
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%(code)s;
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if(fault == NoFault)
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{
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//Write the resulting state to the execution context
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%(op_wb)s;
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}
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return fault;
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}
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}};
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// Primary format for integer operate instructions:
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def format Branch(code, *opt_flags) {{
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orig_code = code
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cblk = CodeBlock(code)
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iop = InstObjParams(name, Name, 'SparcStaticInst', cblk, opt_flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecodeWithMnemonic.subst(iop)
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exec_output = BranchExecute.subst(iop)
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}};
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