arch/sparc/isa/base.isa: Added a set of abbreviations for the different condition tests. arch/sparc/isa/decoder.isa: Fixes and additions to get syscall emulation closer to working. arch/sparc/isa/formats/branch.isa: Fixed branches so that the immediate version actually uses the immediate value arch/sparc/isa/formats/integerop.isa: Compute the condition codes -before- writing to the state of the machine. arch/sparc/isa/formats/mem.isa: An attempt to fix up the output of the disassembly of loads and stores. arch/sparc/isa/formats/trap.isa: Added code to disassemble a trap instruction. This probably needs to be fixed up so there are immediate and register versions. arch/sparc/isa/operands.isa: Added an R1 operand, and fixed up the numbering arch/sparc/isa_traits.hh: SyscallNumReg is no longer needed, the max number of sources and destinations are fixed up, and the syscall return uses xcc instead of icc. arch/sparc/linux/process.cc: arch/sparc/linux/process.hh: Added a getresuidFunc syscall implementation. This isn't actually used, but I thought it was and will leave it in. arch/sparc/process.cc: arch/sparc/process.hh: Fixed up how the initial stack frame is set up. arch/sparc/regfile.hh: Changed the number of windows from 6 to 32 so we don't have to worry about spill and fill traps for now, and commented out the register file setting itself up. cpu/cpu_exec_context.hh: cpu/exec_context.hh: cpu/simple/cpu.hh: sim/process.cc: sim/process.hh: Changed the syscall mechanism to pass down the syscall number directly. --HG-- extra : convert_revision : 15723b949a0ddb3d24e68c079343b4dba2439f43
64 lines
1.8 KiB
Text
64 lines
1.8 KiB
Text
////////////////////////////////////////////////////////////////////
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//
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// Trap instructions
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//
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output header {{
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/**
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* Base class for trap instructions,
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* or instructions that always fault.
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*/
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class Trap : public SparcStaticInst
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{
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protected:
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// Constructor
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Trap(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
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SparcStaticInst(mnem, _machInst, __opClass), trapNum(SW_TRAP)
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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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int trapNum;
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};
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}};
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output decoder {{
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std::string Trap::generateDisassembly(Addr pc,
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const SymbolTable *symtab) const
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{
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std::stringstream response;
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printMnemonic(response, mnemonic);
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ccprintf(response, " ");
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printReg(response, _srcRegIdx[0]);
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ccprintf(response, ", 0x%x", trapNum);
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ccprintf(response, ", or ");
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printReg(response, _srcRegIdx[1]);
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return response.str();
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}
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}};
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def template TrapExecute {{
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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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Fault fault = NoFault;
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%(op_decl)s;
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%(op_rd)s;
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%(code)s
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return fault;
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}
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}};
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def format Trap(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, 'Trap', 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 = BasicDecode.subst(iop)
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exec_output = TrapExecute.subst(iop)
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}};
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