cpuid.isa revision 7087
1// Copyright (c) 2008 The Hewlett-Packard Development Company 2// All rights reserved. 3// 4// The license below extends only to copyright in the software and shall 5// not be construed as granting a license to any other intellectual 6// property including but not limited to intellectual property relating 7// to a hardware implementation of the functionality of the software 8// licensed hereunder. You may use the software subject to the license 9// terms below provided that you ensure that this notice is replicated 10// unmodified and in its entirety in all distributions of the software, 11// modified or unmodified, in source code or in binary form. 12// 13// Redistribution and use in source and binary forms, with or without 14// modification, are permitted provided that the following conditions are 15// met: redistributions of source code must retain the above copyright 16// notice, this list of conditions and the following disclaimer; 17// redistributions in binary form must reproduce the above copyright 18// notice, this list of conditions and the following disclaimer in the 19// documentation and/or other materials provided with the distribution; 20// neither the name of the copyright holders nor the names of its 21// contributors may be used to endorse or promote products derived from 22// this software without specific prior written permission. 23// 24// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 27// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 28// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 29// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 30// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 34// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 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 } 49 50 std::string generateDisassembly(Addr pc, 51 const SymbolTable *symtab) const; 52 }; 53}}; 54 55output decoder {{ 56 std::string CPUIDInst::generateDisassembly(Addr PC, 57 const SymbolTable *symtab) const 58 { 59 std::stringstream response; 60 61 printMnemonic(response, mnemonic); 62 ccprintf(response, " "); 63 printReg(response, _srcRegIdx[0], machInst.opSize); 64 return response.str(); 65 } 66}}; 67 68def template CPUIDExecute {{ 69 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 70 Trace::InstRecord *traceData) const 71 { 72 // If the CPUID instruction used a valid function number, this will 73 // be set to true. Otherwise, the instruction does nothing. 74 bool success; 75 %(op_decl)s; 76 %(op_rd)s; 77 %(code)s; 78 if (success) { 79 %(op_wb)s; 80 } 81 return NoFault; 82 } 83}}; 84 85def format CPUIDInst(code, *opt_flags) {{ 86 iop = InstObjParams(name, Name, 'CPUIDInst', code, opt_flags) 87 header_output = BasicDeclare.subst(iop) 88 decoder_output = BasicConstructor.subst(iop) 89 decode_block = BasicDecode.subst(iop) 90 exec_output = CPUIDExecute.subst(iop) 91}}; 92 93